MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
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Your mod is fine, no issues. Yours actually corrects the issue from the original. Good job. With the original, I just had a look - I am set for 20 percent infill but in S3d at least, neither side of the grip has infill, only the center (charge level) piece. The front grip builds ok though, even without the infill. So for anyone with that issue, this is the build you need.