What Do you mean by a scalable trapezoid? There are many primitives that have configurations options and if you describe what you are trying to do, I will be happy to try to explain a solution.
Science, technology, programming and family - my passions and my work! I love what we are doing at MatterHackers and can't wait for the future we are building with the help of the worlds makers.
Would love to look into specific issues. If you are willing to post to GitHub your profile and a model (either a link or a zip) we will look into improving the speed.
I know it is easy to create a case that is slow, but it is much more productive and inspiring for the team to be working on a real problem someone is having. We release a new build about every month and there have been many dedicated to improving the speed of a specific case.
Thanks for reaching out.
Copying the GitHub response here.
This has lots of self intersecting geometry which can have an undefined result. It is hard for the algorithm to find a solution. I tried to repair it with NetFad and it gave an error. I would recommend you try to repair it with another mesh tool (possibly meshmixer or meshlab. Or if you can re-model it.
Here is a screenshot of the fixed mesh.
As you can see, it could not detect the complete whole correctly.
We will keep this as a test model (if its ok) to try and improve the algorithm, but it seems like this may not be fixable.
This does not sound like the expected behavior. If you can upload your profile, a description of what you're seeing, and any other information that might be helpful to GitHub, we will investigate the issue.
Thank you for taking the time to report this. We are always looking for ways to improve matter control.
Again thanks for the report. The fix will be in the next build.
We have filed a bug for this issue.
Thank you for reporting it.
There should be no retracts at the top of this part.
If you submitted to support, or put it up on GitHub, we can include it in the release and also you will get a $15 store credit to matter hackers.
You will need to export them as two separate STLs and then compline them in Cura. STLs don't have separate objects in them. You can also export it as an AMF and import that into Cura. I don't know how to assign materials in Cura but you will be able to export the separate bodies from MatterControl.
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