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Operator
Good afternoon, and welcome to 3D Systems conference call and audio webcast to discuss the results of the first quarter 2018.
My name is Sherry, and I will facilitate the audio portion of today's interactive broadcast.
(Operator Instructions) As a reminder, this conference is being recorded.
At this time, I would like to turn the call over to Stacey Witten, Vice President, Investor Relations, 3D Systems.
Stacey Witten - VP of IR
Good afternoon, and welcome to 3D Systems conference call.
I'm Stacey Witten, and with me on the call are Vyomesh Joshi, our President and Chief Executive Officer; John McMullen, Executive Vice President and Chief Financial Officer; and Andrew Johnson, Executive Vice President and Chief Legal Officer.
The webcast portion of this call contains a slide presentation that we will refer to during the call.
Those following along on the phone who wish to access the slide portion of this presentation may do so on the Investor Relations section of our website.
Participants who would like to ask questions at the end of the session related to matters discussed in this conference call should call in using the phone numbers provided on the slides and in the press release that we issued today.
For those who have accessed the streaming portion of the webcast, please be aware that there may be a few second delay and you will not be able to post questions via the web.
The following discussion and responses to your questions reflect management's views as of today only and will include forward-looking statements as described on the slides.
Actual results may differ materially.
Additional information about factors that could potentially impact our financial results is included in today's press release and our filings with the SEC, including our most recent annual report on Form 10-K.
During this call, we will discuss certain non-GAAP financial measures.
In our press release and slides accompanying this webcast, which are both available on our Investor Relations website, you will find additional disclosures regarding these non-GAAP measures, including reconciliations of these measures with comparable GAAP measures.
Finally, unless otherwise stated, all comparisons on this call will be against the results for the comparable period of 2017.
Now I'm pleased to turn the call over to Vyomesh Joshi, our CEO.
VJ?
Vyomesh I. Joshi - President, CEO & Director
Thanks, Stacey.
Good afternoon, everyone.
We made substantial progress in 2017 to stabilize the company and position the company for long-term growth and profitability.
We continue to invest in several areas we believe are critical to long-term success, including IT, services and go-to-market.
While our actions and investments in go-to-market are not done, we have made significant progress and we believe we are on the right track to continue to drive growth and improve execution worldwide.
Our energy and focus this year remains on execution, improving efficiency and introducing disruptive new products to drive customer shift to 3D production.
With that, I would like to provide an overview of the first quarter before John provides more detail on our financial results.
We are pleased with our revenue in the first quarter with growth in printers, health care, software and on-demand manufacturing.
During the first quarter, total revenue increased 6% to $165.9 million.
We have consistently discussed several key growth drivers and I would like to take a moment to recap the performance of these categories for the first quarter of 2018.
Health care revenue grew 21%.
Software revenue increased 13%.
On-demand manufacturing grew 2%.
Materials revenue was approximately flat and printer revenue grew 24% on a 44% increase in printer unit sales prior to shipping any of our new products.
We are very pleased with our growth in printer units, which we expect will fuel our annuity-based business model in the future.
As we continue to reshape our installed base and place more productive units, we expect this will drive more materials revenue long term.
GAAP gross profit margin in the first quarter of 2018 was 46.9% and non-GAAP gross profit margin was 47.1%.
GAAP operating expenses increased 7% to $95.4 million in the first quarter.
Non-GAAP operating expenses were $79.5 million, a 10% increase compared with same quarter last year, but only a 2% increase sequentially.
For the first quarter of 2018, we reported a non-GAAP loss of $0.03 per share and a GAAP loss of $0.19 per share.
Now let me turn it over to John to discuss our first quarter 2018 financial performance in more detail.
John?
John Nicholas McMullen - Executive VP & CFO
Thanks, VJ.
Good afternoon, everyone.
For the first quarter, we reported revenue of $165.9 million, an increase of 6% compared to the first quarter of 2017.
GAAP gross profit margin was 46.9% compared to 51.3% in the first quarter of 2017.
GAAP operating expenses increased 7% to $95.4 million, including a 5% increase in SG&A expenses and a 13% increase in R&D expenses.
We reported a GAAP loss of $0.19 per share in the first quarter of 2018 compared to a loss of $0.09 per share in the first quarter of 2017.
We used $1.5 million of cash in operations during the first quarter.
We ended the quarter with $121.6 million of cash on hand compared to $136.3 million at December 31, 2017, as we continued to invest capital in IT, new product launches, on-demand manufacturing and customer innovation centers.
Compared to the first quarter of 2017 non-GAAP SG&A expenses increased 8% to $53.6 million, as we continue to invest in IT transformation and go-to-market initiatives.
Non-GAAP R&D expenses increased 13% to $25.9 million, including continued investments in support of previously announced new products.
We reported a non-GAAP loss of $0.03 per share or a loss of $3.4 million in the first quarter of 2018 compared to non-GAAP earnings of $0.06 per share or $7.1 million in the first quarter of 2017.
Health care revenue for the first quarter of 2018 increased 21% to $52.4 million.
We continue to be pleased with the overall demand trends for all categories of health care and expect continued double-digit growth in health care going forward.
Printer revenue increased 24% to $39.1 million in the first quarter on a 44% increase in printer unit sales with strong growth in both production and professional unit sales.
As we have discussed, printer unit sales and revenue mix may continue to fluctuate, specifically as we launch products throughout the year at a very wide range of prices.
We believe the printer unit placements we are making this year will fuel our annuity-based business model over the longer term.
Materials revenue was approximately flat at $42.5 million due to mix of sales and timing of orders.
While there can be lag time between printer placements and scaling materials utilization, we expect growth in materials, as we continue strong unit placements and benefit from incremental contributions of new printers later this year while driving higher utilization.
Software revenue increased 13% from the first quarter of the prior year to $23 million.
As we continue to add additional software solutions for both plastic and metal 3D printers, we expect continued growth from this category.
On-demand manufacturing revenue increased 2% to $25.7 million for the quarter.
We believe our investments in facilities, technology, customer experience, demand generation and our enhanced sales approach have helped drive improvements in our on-demand manufacturing business and will drive continued growth over the longer term.
We reported GAAP gross profit margin of 46.9% and non-GAAP gross profit margin of 47.1% in the first quarter of 2018 compared to 51.3% in the prior year.
The impact of mix of sales and continued investment in services and on-demand manufacturing offset cost reductions achieved from ongoing supply chain initiatives.
We continue to drive supply chain optimization, manufacturing efficiencies and process improvements, and therefore, expect fairly stable gross profit margins this year.
But the ramp of new products and mix of sales may result in fluctuations quarter-to-quarter.
GAAP operating expenses for the quarter were $95.4 million, an increase of 7% compared to the first quarter of 2017, including a 5% increase in SG&A expenses and 13% increase in R&D expenses.
Non-GAAP operating expenses in the first quarter were $79.5 million, a 10% increase from the first quarter of the prior year, but only a 2% increase sequentially.
Compared to the 2017 quarter, non-GAAP SG&A expenses increased 8% and R&D expenses increased 13%.
Operating expenses increased primarily from additional investment in support of our new products planned to be available throughout 2018 as well as from investments in IT infrastructure, implementation of our market-based job hierarchy and legal expenses.
We continue to make significant investments we believe are critical to the company for long-term success.
We remain committed to improving our cost structure over the next couple of years.
We have developed and are executing on a strategic, company-wide cost optimization and efficiency plan to align resources with key priorities, reduce overhead cost and leverage our IT infrastructure investments.
I also want to note we plan to exclude costs associated with this optimization plan from our non-GAAP results, and therefore, these costs will be in our non-GAAP reconciliations each quarter.
With that, I'll turn the call back to VJ for some concluding remarks.
VJ?
Vyomesh I. Joshi - President, CEO & Director
Thanks, John.
In 2018, we are focused on execution, driving operational efficiencies and bringing our disruptive and innovative new products to market.
We have a strong offering of additive solutions for the entire digital manufacturing workflow with a series of new product introductions planned throughout 2018 to further solidify our leading market portfolio.
We recently began shipping the SLS 6100 and FabPro 1000 and have received great feedback on these products.
The FabPro 1000 offers 2.5x the speed of competitors and unmatched accuracy.
The next-generation SLS 6100 system provides 6 production-grade materials, superior part quality and enhanced temperature control, enabling more productivity and better total cost of operation than comparative systems.
At Lab Day, we previewed the NextDent 5100, which, we believe, can redefine digital dentistry at a price point of less than $10,000 per printer.
This solution offers 30 dental materials, 4 times the speed of competitive systems, up to 90% cost saving for customers compared to traditional production methods and can cut the number of patient visits in half for products such as dentures, which typically require multiple fitting visits.
At recent trade shows, we demonstrated real-world use cases of our Figure 4 platform and the benefits it can provide customers.
Figure 4, with over 30 materials, offered at launch can reduce injection molding cycle times by 40%, provide 20% cost savings and increase production rates by 30% compared to traditional manufacturing methods.
Last week, we also announced the U.S. Air Force has selected Figure 4 for research on integrating high-speed 3D printing into the aircraft maintenance supply chain.
This project brings together 3D Systems as a 3D printing leader with aerospace manufacturing leaders, including Lockheed Martin, Orbital ATK and Northrop Grumman.
One of the main goals of this research is to explore how Figure 4 can be used to reproduce aircraft components for older planes with difficult-to-replace parts and to demonstrate rapid part delivery with just-in-time production and no minimum order quantities, reducing cost and time for repairs.
One reason Figure 4 was selected is because it is the quickest, most accurate 3D printing technology available, delivering the fastest time to part and unparalleled Six Sigma repeatability.
We plan to begin shipment of NextDent 5100, stand-alone Figure 4 and modular Figure 4 this summer.
Additionally, later this year, we plan to bring to market the DMP 8300 metals printer, a factory-ready model of the ProX 320 and the larger DMP 8500 factory solution.
The collective feedback on our full set of new products from customers, beta testers and trade shows has been very positive.
And we believe our new products will provide incremental and expanded market opportunities going forward.
We are very excited about our enhanced and complete end-to-end portfolio, ongoing innovation and significant growth opportunities.
And with that, I would like to turn the call back to Stacey, who will open the floor for questions.
Stacey?
Stacey Witten - VP of IR
Thanks, VJ.
We will now open the call to questions.
(Operator Instructions) As a reminder, please direct all questions to the teleconference portion of this call.
The telephone numbers are provided again on the slides.
If you're calling in the U.S., the number is 1 (877) 407-8291.
And if you're calling outside the U.S., the number is 1 (201) 689-8345.
Operator
(Operator Instructions) Our first question is from Jim Ricchiuti with Needham & Company.
James Andrew Ricchiuti - Senior Analyst
The question I had is, just as it relates to the printer growth that you showed, the 24%, it looks like you indicated it was coming from both professional and production.
Wonder if you could just give us a little bit more color on that.
How much was production up?
How much was professional up?
And is this momentum do you think at this point sustainable in the June quarter?
And then follow-up question just with respect, VJ, to the new products.
Can you give us any better indication as to whether some of these will be shipping in the early part of the summer or the latter part of the summer?
Vyomesh I. Joshi - President, CEO & Director
Okay.
All right.
You had a lot of questions.
So let me go one by one.
The first thing is, there is a balance.
We had both production and professional printers growth in Q1 2018.
So not only our MJP, but our SLS, SLA and DMP printer, the production printers, we had a tremendous growth in 2018.
And I believe this is even without introducing the new products that I have been talking about, which will happen in maybe the second half of 2018.
The second thing that I can say is, because that we are focused on productive installed base, these things will generate an annuity stream in the coming quarters and especially in 2019.
The -- another point that I want to make that the printer revenue grew 12% sequentially.
So even in a weak quarter, generally we saw tremendous market share growth on the printer hardware side.
As far as the next-generation product, this is going to be different.
So as for example, we talked about -- we started shipping our FabPro 1000 and SLS 6100 starting this month.
We are going to start shipping our Dental Lab, which is the 5100 early summer and then 8300 and 8500 in the fall time frame.
So what you're going to see is, throughout the second half, you're going to see many more products coming to the market.
And the feedback that we have is, we are very excited about the feedback that we got in the trade shows, like Figure 4 got tremendous, tremendous feedback in terms of the speed, the overall accuracy of the unit.
The DMP 8300 and 8500, the metal printers, I really believe we are the best titanium printer.
And our success there will also help us in growing this revenue.
The Figure 4 shipping, as I said, will be in early summer all the way to the fall.
James Andrew Ricchiuti - Senior Analyst
And your product gross margins, at least in the Q indicate 29.3%.
Should we assume as these products begin to ship in the second half that we could see some improvement in those product gross margins?
Vyomesh I. Joshi - President, CEO & Director
It depends, because certain products have a low price point like FabPro.
There, the margins will be lower.
But as you go into the modular Figure 4, the 8500, the production Figure 4, you can expect a higher margin.
So it's going to be different by the product category.
And I think -- but I believe we will be able to maintain overall margin for the company.
Operator
Our next question is from Ananda Baruah with Loop Capital.
Ananda Prosad Baruah - MD
Couple of -- congrats on the solid straight quarter of execution.
It's really good to see.
And I guess, I'd just like to start there.
VJ, do you -- I mean, do you consider yourself ahead of schedule with regard to sort of collectively with all the initiatives you had in place for 2018?
And then when you removed the guide, when you -- in October for 2017, you had talked about doing a handful of things.
Do you consider yourself to be ahead of schedule there?
You've had 2 straight quarters of pretty solid execution.
So I'd love to get your thoughts there.
And then I have a couple others.
Vyomesh I. Joshi - President, CEO & Director
I wouldn't call it ahead.
I just think it's a build.
We are going to -- as I always said, I want to stabilize the company, focus on the revenue growth, the growth drivers that I always talked about, continue to grow health care, continue to drive our software and ODM business with a positive growth.
And now I've always said that I want to go -- take our printer hardware revenue in the right direction and that's the first quarter.
I just want to continue doing that.
The other important part is the balance between the EMEA, Americas and Asia.
So this quarter, Americas grew 5%, EMEA grew 8% and APJ grew 3%.
That was the second thing that I always said, that I want to achieve not only growth into these categories and then the annuity stream will come for materials, software and services but also I want to have a balanced performance in our go-to-market.
So now this is the first quarter we are seeing now our Americas and EMEA and APJ performance in a balanced way.
I want to continue doing that.
And I want to really make sure that we launch these innovative products.
Because at the end of the day, now pruning that overall portfolio that we achieved, I want to make sure that now we augment that with our new products, and that will continue to help us as we move into the second half of 2018, continue to build on what we have done.
And I would really like to focus on the revenue growth.
The other important part is we do need to work on our cost structure.
And the cost structure, the way I want to work on it is not really impact our product introductions, but really make sure everywhere else, how can we take the cost out.
Ananda Prosad Baruah - MD
And where -- is it the actions that you've been taking in the North America channel that have really been the incremental catalyst over the last couple of quarters?
Vyomesh I. Joshi - President, CEO & Director
It's not just the channel.
It's the both direct and indirect.
See for me, we are adding more direct sales people.
We are adding inside sales.
We are scrubbing and clarifying territory assignments.
The other important part I talked about is to really create the right kind of a pipeline.
And we want to get focused on lead generation.
So we launched Our People Know campaign at Rapid.
Because I really believe -- the thing that I'm finding in the 3D Systems, we have incredible talent.
And all these 30 years of experience that we can really count on our employees and the approach that we have with our application engineering, the workflow work that we do, I want to really drive the demand generation.
So the marketing campaign, the lead generation approach that we are taking, the pipeline processes that we had in EMEA, applying them into Americas and APJ, all these things, plus we want to also optimize our events and fairs and really drive execution.
Plus with a new launch that we will do, we will continue the approach that we have taken for right kind of go-to-market investment to drive the revenue and profit growth.
Ananda Prosad Baruah - MD
Okay, that's helpful.
Now I'm just going to sneak one more in.
Just help us out, how should we think about seasonality?
I know you're not giving guidance, but through the year the dynamics into these new product launches.
I mean, you've had sort of high end of normal seasonality the last 2 quarters and ahead of the launches.
So do the launches help?
Or could the launches stall?
How would you like us to sort of think about that?
Vyomesh I. Joshi - President, CEO & Director
No, I think seasonality is -- the way you should look at Q2 is like the same seasonality what you saw in Q1 or Q2, because all the major launches are not happening.
And then in Q3, Q4, we should be able to see the launches helping us in overall execution and the revenue growth.
Operator
Our next question is from Brian Drab with William Blair & Company.
Brian Paul Drab - Partner & Analyst
Gosh, I would have asked those, kind of forming those questions sort of the opposite way, I guess, as you might not be too surprised than Ananda was in that I'm wondering if you feel at this point that you're a little behind.
I mean, looking at -- gross margin is down 400 basis points year-over-year, OpEx is up 300 basis points and organic growth this quarter was 1%, if you take out the 5 points of FX.
And last year, we were talking about returning to industry levels of growth, which are 20% plus.
So I was wondering, is that 20% plus -- I'll just ask the question.
Is the 20% plus in the cards?
And is it a 2019 story at this point?
Vyomesh I. Joshi - President, CEO & Director
Well, I think -- let's break down all the questions one by one because there are multiple questions.
The first thing is, clearly, the first thing that I want to do was to get our printer unit growth, which is really very important because that's the way you put the installed base.
So 44% unit growth means that we are gaining share.
Let's just be real, the market is not growing 44%.
So I just want to be clear and that's both in MJP and the production units.
So this is not just an MJP story, and I want to be very clear about that.
The second thing is, yes, definitely, the foreign exchange helped, but when you have America, there is no foreign exchange.
When we grew 5%, that says that we are really focused on the execution and what we are achieving there.
The third point that I want to make is the mix because remember we are still looking at our materials revenue coming from the installed base, which is a legacy system.
And when you have printers, which are not working, they're not going to utilize the material.
Now we have made a lot of progress on services, but there is a migration going on, like especially on MJP, where customers are taking 2500 and replacing the old 3600 units.
So you're going to see that flat -- flattish materials growth will have a very different mix on the gross margin.
Because when you have more hardware versus the materials growth, that's what you are really seeing the mix thing in terms of the gross margin.
So I am actually happy about where we are with our gross margin.
It's just that as we put this 44% kind of unit growth and then once we start seeing the annuity stream in materials, that mix of the margin is going to be much, much better.
The last part, in terms of -- I always said that I want to build the company for long term.
I want to make sure that we focus on absolutely driving the new product introductions and the execution in the go-to-market and IT investments I want to make.
I don't want to really run the company for short term and just cut some expenses because that's how -- I want to look at it, how I can build a great portfolio, drive the unit growth because that's where the market share -- and these units are going to consume kilograms of materials, not grams of materials.
We are very, very methodical and measured in terms of what kind of installed base we want to drive.
So with that in mind, I'm really happy with our performance and let John add too.
John Nicholas McMullen - Executive VP & CFO
Yes, just on a couple of specifics that you brought up Brian.
When we talked in Q4, we gave some direction on gross margin.
So sequentially and throughout the course of the year, we suggested that you could probably continue to expect high 40s or somewhere in the range of Q4.
Margins, operating expense, overall performance in Q1 was certainly within the range of our expectations.
And we were pleased with certain areas of revenue growth, particularly printer revenue growth.
So just wanted to give you that detail part.
I understand the year-over-year margin, but we've been kind of addressing that on a quarter-by-quarter basis.
And we've talked about how as we reshape the installed base and go through that migration process, the leverage in margin going forward is driven by materials growth yet to come.
Brian Paul Drab - Partner & Analyst
Got it.
Okay.
I appreciate that detail.
I'm just looking at the Q and thinking the stock would really get going if you had this column for change in gross profit, where you've got 1% for products and flat for materials gross profit year-over-year and overall company gross profit dollars down 3%.
You know that...
Vyomesh I. Joshi - President, CEO & Director
To understand, it's a mix thing, right?
Brian Paul Drab - Partner & Analyst
But with -- by giving up some price or giving up margin.
And I'm wondering when that starts to turn.
Vyomesh I. Joshi - President, CEO & Director
Well, I think what -- we'll see that as soon as we start getting our installed base printing more and more the materials growth.
And then now you have the right kind of a mix.
I think in any kind of annuity-based business model, you've got to invest in getting the productive installed base.
Because if you don't drive that, you are not going to really see the fruits of the annuity that you will with an installed base.
And this company needed that and that's why we pruned our portfolio.
We focused on saying where we can get the usage and then driving that installed base.
44% unit growth, I'm very happy with that.
John Nicholas McMullen - Executive VP & CFO
Yes, the other thing, Brian, is that we've also invested a fair amount of time in our analytics and understanding of the installed base.
So we have pretty good visibility in terms of how that's moving over time.
And that helps us with our expectations as well.
Operator
Our next question is from Wamsi Mohan with Bank of America Merrill Lynch.
Wamsi Mohan - Director
I was wondering just to follow up on your comments here, VJ and John, on that shaping of that installed base.
Can you give us any metrics that give us some sense on what is the maybe average age of the printers in the installed base?
How much is the installed base down on a year-on-year basis?
Or some color that you think is appropriate for us to understand how that...
Vyomesh I. Joshi - President, CEO & Director
I can't give you a lot of details, but I will just give you a flavor of it.
So if you think about it, because the installed base, you look at really 3 to 5 years kind of approach because that's what generally you create what I call the annuity-based business model based on that.
So if you think about it, the company was installing lot of consumer units, but we didn't have the usage.
And that is not very good for the materials growth.
We also had the issue that I have been very upfront about in the legacy MJP and our 300 printers, and that also hurts because these products that we installed, they were not being used.
Now we are working hard and we kind of stabilized that, but -- so what happens is these units come out of the active installed base because they are not really consuming any materials.
Starting last year, we started putting really focus on saying how do we really put the production units, which is SLS, SLA, DMP and then specifically our MJP product line for jewelry segment and for investment casting segment, where we have production workflow, so that we can now shape the overall installed base, the stuff which is not consuming lot of materials and be out of that active base and then adding more and more units because that's what we need to create.
And I'm feeling that we are on the right path from '17 and now in first quarter '18.
And we need to continue doing that with augmenting our portfolio with Figure 4, with our 8300 and 8500 units and we believe with 6100, which is a new SLS printer, we are going to see this installed base, which will then generate annuity in materials and services starting second half and lot more will come in 2019.
Wamsi Mohan - Director
Okay.
And if I could, John, if you look at the cash flows, they're down quite materially on a year-on-year basis, both for operating and free cash flows had a big tick up in CapEx as well.
How should we think about the progression of cash flows as we go through the remainder of the year?
And where should we think of your full year CapEx?
John Nicholas McMullen - Executive VP & CFO
Sure.
So I think if you step back, Wamsi, all the way back to the beginning of last year, right, the biggest shift from a cash point of view was the acquisition that we did back in January.
We did show some cash burn through the course of the year, but it was a fraction of that.
From Q4 to Q1, the primary driver of the decline in cash from Q4 to Q1 was continued CapEx investment in the business and the support of the product launches.
So roughly $10 million or $11 million of cash CapEx that was in play there quarter-to-quarter.
You should think about CapEx for the full year.
You should think about CapEx in the $40 million to $50 million range, not too inconsistent with what we did last year.
And as we continue to build and ramp the business, our ability to improve our cash composition down the road and hopefully later in the year, is there for us.
Operator
Our next question is from Hendi Susanto with Gabelli & Company.
Hendi Susanto - Research Analyst
Congratulations on delivering growth in Q1.
First question is for VJ.
Given the strong units printer growth in Q1, how should we look into printers revenue growth?
Would you be able to share some colors on mix shift over lower ASP or whether there is some strength of mid-end versus high-end printers in Q1?
Furthermore, I'm wondering also when you have new product introductions, whether we should anticipate that some customers may delay their purchases and then wait and see for new products.
Vyomesh I. Joshi - President, CEO & Director
Well, I think as I mentioned, the Q1 '18 was very balanced.
We had very similar growth in both production and professional printers.
And that's what I would expect in Q2.
But as we are introducing all the way from $5,000 product to million-plus product line, the ASP on average will not be a good way to look at it, by category may be worth it, but on average, because you're going to have a lot of units in the low price point and fewer units in higher price point.
And I think that's what the new product introductions that we are doing.
So my view is, you just have to really look at, are we adding more units?
Are those units consuming lot of materials and also having an overall hardware revenue growth throughout the 2018?
And I think that's what you should be measuring us.
Hendi Susanto - Research Analyst
Got it.
And then, John, following up on Wamsi's questions on OpEx would you share more clarity on your investment in OpEx?
Does Q1 represent a base case for OpEx?
Or OpEx may increase further throughout the year for your investments?
John Nicholas McMullen - Executive VP & CFO
Yes, sure.
So I think when we came out at year-end with Q4 and full year results, we talked about Q4 being a good kind of proxy for our run rate number throughout the course of 2018.
But we also talked about front-end loading of OpEx a little bit in the first half as we get these products out the door.
So we saw a 2% sequential increase from Q4 to Q1 in total OpEx.
And that's really driven predominantly in R&D expenses related to new product introductions.
And so I would stick with the thought that Q4 as roughly a number plus or minus is a good way to run rate in terms of how the year might look, and I'll let you kind of fill in the blanks quarter-to-quarter.
Operator
Our next question is from David Ryzhik with Susquehanna Financial Group.
David Ryzhik - Associate
VJ, can you give an update on the metals portfolio, the ProX 320?
I think you've talked in the past about Europe, some good demand there, but an update on your efforts in the U.S. And I have a follow up.
Vyomesh I. Joshi - President, CEO & Director
So I think the metals, I think you have to look at 2 key segments.
The health care segment, I think, we are getting tremendous success, because what I believe the fundamental value proposition here with the workflow knowhow and having that capability in health care is helping us to really get the solutions to the medical device manufacturers.
So my view, our metal business in health care is a very important aspect of it.
And as I mentioned, that in aerospace we still have work to do because this is where the overall approach that we are taking is very similar to health care that I want to really focus on overall workflow because the 3DXpert software that we have, the 320 is a phenomenal titanium product.
But we also believe that having that system approach with our workflow knowhow, the 3DXpert, the materials and hardware, we will be able to come after some use cases in aerospace, where we will have a competitive advantage.
As far as the success in Europe, is continuing.
And now we have hired some very good talent also in U.S. And I believe we are going to see that -- and you can see the traction already, as I mentioned.
And you're going to see traction also in Americas in the coming months.
David Ryzhik - Associate
And just a quick balance sheet question, John.
[Self] cash at a little over $100 million.
What's the minimum that you need to run the business?
And how much cash do you have onshore?
John Nicholas McMullen - Executive VP & CFO
Right now, our ending cash balance was just shy of $122 million in Q1.
And I don't think I'd give you a pure minimum number, because a lot of cash really depends on where it is a lot of times, right?
So I'm comfortable with the mix of U.S. and non-U.
S. cash for the company.
And it's certainly something that we keep an eye on and work on, on a quarter-to-quarter basis.
So I'm not -- I'm certainly not uncomfortable with our cash position at all.
We understand what investments we're making and we also understand what the opportunity for us to grow that cash going forward is.
But really to give you a peg on a number like that is not something we share, but also it's not really meaningful.
It's really where that cash is.
And I'm very comfortable with the mix of where our cash is today.
Operator
Our next question is from Bobby Burleson with Canaccord.
Robert Joseph Burleson - MD & Analyst
So I guess, curious on the competitive landscape.
I don't think we have touched on that yet.
Lot of innovation out there.
I'm curious kind of where you see your advantages in your portfolio.
I mean, obviously, you guys have the broadest range of technology, hardware, software, et cetera.
What are you guys doing to make sure that you have a leg up on the competition?
Vyomesh I. Joshi - President, CEO & Director
Yes, so let's start with -- because it goes by, as I always feel by customer-in view rather than technology-out view.
When you think about for jewelry and investment casting customers, I think we have the best solution.
We don't have really any competition.
And this is where our 2500 wax product is doing extremely well.
We are continuing to gain share.
And I am very comfortable that we have a very unique solution with which we are making tremendous progress.
Then you go after the dental, health care, the appearance modeling, this is where our SLA solutions are.
And we are absolutely the leader, and we continue to be a leader.
We believe that the solution that we provide all the way from casting solution to the overall modeling solution, we own that space.
And I'm very comfortable stating we are the leaders and will continue to be the leaders.
And the reason for that is the productivity, the quality of the parts that we achieve, and the reliability of 800 system is fantastic.
You go to the functional prototyping and low-volume production, this is where the SLS machines, I always believe that we have a better technology and it is proving out.
And with our new SLS 6100, we have a better part quality because of the temperature control now, the density of the parts that we could build, and the productivity that we are getting with 6100 is absolutely competitive.
And we are going to continue to do well in our functional prototyping and in a low-volume production.
And then you go to the DMP, I already talked about it.
We have a very unique advantage in the titanium in health care segment.
And I do believe with our new 8300 and 8500 factory systems, we are going to grow the market.
And I do believe 8500, the feedback we are getting from our customers, they are really thrilled about the architecture that we have used.
And that brings to the new products.
So if you look at FabPro 1000 in an entry-level industrial printer, we have the best materials portfolio.
The parts that we have has the highest accuracy and the print time is 2.5x faster for that kind of a category of the product.
I do believe it's going to really help us to really drive adoption with the engineers, because the design engineer is the core customer that we are talking about.
And then Figure 4, Dental 5100, the feedback we got on the Lab Day it is the best printer.
When you think about the productivity of 4x, when you talk about cost savings for the Dental Lab up to 90% and the ease of use and the overall reducing the number of visits, I'm really very, very excited about our NextDent 5100 with all the 30 materials.
Nobody has that many materials, which has FDA approval.
And then Figure 4, because it's the fastest, when we are printing 4 inches per hour, that kind of a speed and then you put them into multiple modules to really drive the productivity with which we can get and the 30 materials we have with accuracy of Six Sigma, that's a very important part of a Cpk above 2.5 and really you can have no -- part-to-part variation or engine-to-engine variation.
We are talking about a very, very tight range.
And that's what a production manager wants.
So I think the portfolio point of view now for certain sweet spots by application, by use case, I think we have the right kind of a portfolio in the marketplace.
And I am actually delighted that the response we are getting back and so competitive point of view, the innovation, that's the reason our investment in R&D had to go up because we needed this augmentation to our existing great portfolio in SLS, SLA, and DMP and MJP.
These new products now will give us that leadership that I wanted into the overall additive manufacturing.
Robert Joseph Burleson - MD & Analyst
Okay.
Great.
And then just following up on the materials side, you guys have delivered nice unit growth -- very strong unit growth.
And it sounds like the mix is still a little bit volatile, but might be stabilizing in terms of production, professional, et cetera.
So I'm wondering, what's the readthrough -- I'm sorry, what's the readthrough in terms of the lag between the time that your installed base is growing and when we should see a real resurgence in materials growth?
And is that materials margin itself stable?
Vyomesh I. Joshi - President, CEO & Director
Yes, so I think the first thing is, as I said, that we need to reshape, again, and you have to look at by category.
So for MJP printers, remember we had issues with our legacy reliability and other things.
And now we are really having 2500, which is a very reliable platform.
So I absolutely believe that the 2500 materials growth is going to really show up and help us in overall materials growth.
Right now, this harmonizing of that portfolio is the reason that you are seeing the kind of materials flat.
As far as SLA is concerned, we are continuing to see tremendous growth in materials for SLA.
SLS, I think with our 6100 printer, I am now very confident that we are going to continue to see our SLS materials growth.
And then as we look at the new products, they are going to be all incremental.
The beauty of the new products is that of different categories and there is not really overlap between this portfolio.
So I think that starting second half and in 2019, you are going to see a significant change in our materials revenue growth.
Operator
Our final question is from Troy Jensen with Piper Jaffray.
Troy Donavon Jensen - MD and Senior Research Analyst
Congrats on the great top line here.
Just a quick question, can we dive in a little bit on gross margins?
Just curious to know what targets you guys should think about or we should be thinking about as far as how you're managing the business.
I mean, can we get back to 50% gross margins, or just kind of fundamentally are we going to just see high 40s?
John Nicholas McMullen - Executive VP & CFO
Yes, I think the direction that we gave relative to the year in general, Troy, was to think about gross margins relatively stable around Q4 levels, high 40s and we were in the ballpark, but a little down in our seasonal low quarter in Q1.
And then the leverage above that is really the discussion that VJ just had relative to when we can turn the corner on material growth with the installed base migration and the additive new products that start coming in that are really incremental.
So that's where we could see some leverage with the mix in the business between materials and hardware.
Vyomesh I. Joshi - President, CEO & Director
I think in my mind, the materials gross margin, one thing I learned that when you have IP, you have a gross margin.
And that's why proprietary materials and then 75% kind of a margin, they go hand in hand because that's what you want to do.
You want to -- because margins are really connected with the intellectual property that you are developing.
And that's why this R&D is very important and that's how we could maintain that kind of a gross margin for the materials because that mix is the way I think about how we want to really continue to drive, okay?
Troy Donavon Jensen - MD and Senior Research Analyst
So VJ, I mean, software is growing as a percent of revenue that's got good margin, so is materials here.
If Figure 4 starts to really ramp, I guess, could that help drive gross margins above 50%?
Would that have...
Vyomesh I. Joshi - President, CEO & Director
It all depends on the mix, Troy.
It depends on the mix, if I get more and more the modular and the production units, it's going to have a very different kind of a profile.
I think the way I look at it is the Figure 4 gross margin will be determining on the kind of a category that we are going after.
And then the materials, I'm very confident on the materials because these are all unique materials we have to develop.
There is nothing in the world like that.
And that's why next 10 materials, the materials that we are doing it for the tough, the prototyping material, the elastomeric material, these are all innovation.
And as I said, these things will tie the gross margin.
Operator
Ladies and gentlemen, we have reached the end of our question-and-answer session.
I would like to turn the conference back over to Stacey for closing remarks.
Stacey Witten - VP of IR
Thank you for joining us today and for your continued support of 3D Systems.
A replay of this webcast will be made available after the call on the Investor Relations section of our website, www.3dsystems.com/investor.
Thank you.
Operator
Thank you.
This concludes today's conference.
You may disconnect your lines at this time, and thank you for your participation.