Hello. Thank you so much for your support and engagement with our teams. Your feedback helps drive our development process and makes our products better.

In this release, we’ve included the following improvements to your print process:

As a reminder, we do provide the option for the on-printer software to stay fixed. Version Lock 1.31 is our offering entailing full software support of v1.31 for 2 years, between September 2021 and September 2023. You can read more about the offering here - if you are interested, please contact your Account Manager for more details. Note that we strongly encourage opting into Version Lock 1.31 prior to upgrading to v1.32+.

We can’t wait to hear from you about this release. Keep printing great parts and sharing your feedback.

If you have any questions, please contact the Carbon Service Team at [email protected] or Lily at [email protected].



We have changed how we print with EPU 40 to reduce commonly encountered issues with adhesion and delamination. Parts that previously failed in EPU 40 (ie. taller parts, parts with a small surface area touching the build platform) will now have an increased chance of success with the default print plan. However, there will be a decrease in accuracy and small feature resolution, and a 30% increase in print time. Final material properties remain similar, please refer to the updated EPU 40 Technical Data Sheet for new Bayshore Rebound Resilience and Compression Set values.

All projects and uploaded .carbons printed on a v1.33 printer with ‘EPU 40’ selected as the resin will print in this new way. To continue printing with the previous method, you will need to manually change the resin to ‘EPU 40 Legacy’ on v1.33.

Left: Pre-v1.33 print result, adhesion failure Right: v1.33 print result, successful print

We have increased the Z scale factor by 0.3% for Loctite IND405 Clear to account for shrinkage and improve accuracy in the z-dimension. There are no changes to XY scale factors or impact on mechanical properties.

In order to reduce excess material flashing at the base of a part, we have added a slight delay to slices 2-5 at the beginning of a print. You will notice a flat increase in print time per project. We’ve seen roughly 2-3min (DPR 10, EPX 82, UMA 90, RPU 70), 6-10min (EPU 40), 15-20min (RPU 130) increases in time in our testing, though these could vary based on the geometry of parts on the build. Builds with large cross sections will see less of a change due to pre-existing delays.

If this increase in print time is detrimental to your production flow, please contact us to learn more about how you can increase the speed of your print.



For densely packed builds or builds with parts that have large cross sections, you may notice faster print times. The time will vary depending on your build. As an example, a build of 22 full palate orthodontic models printed in DPR 10 can expect up to 35% faster print time. In our testing, mechanical properties and accuracy have shown to be unchanged when printing faster.

An alternative slicer is now available to use from the Print controls panel for when holes and small defects are not properly sliced by our default slicer. The Poisson Slicer requires more time to analyze and slice a project. The time to analyze a project may take up to ~2x our default slicer.

Additional information about how the slicer works can be found here.

All print time estimates for L1s have been increased by 15% to better reflect the actual times prints have been taking. Estimates err on the side of overestimating rather than underestimating.

This has no impact on the actual print time.

The unique print identifier token, {print_uuid}, is now the new default for embossing and engraving in the Part labels tool. This will not affect any changes you previously made in your project settings.

If you are still using the previous default, {print_serial}, we highly recommend switching over to {print_uuid} for an unique identifier as soon as possible.

We love hearing from you about your workflow, your parts, and how to improve. Keep your insightful feedback and ratings coming. We read them carefully and follow up when you request that we contact you. If you prefer real-time feedback, you can always email [email protected] or contact the Carbon Service Team, [email protected].