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adrianschlatter / threadlib

thread library for OpenSCAD
BSD 3-Clause "New" or "Revised" License
362 stars 34 forks source link

Thred for filter #34

Closed kakl closed 4 years ago

kakl commented 4 years ago

Hello Adrian, I am new in OpenScad. We are trying designing a reduction for particle filter against coronavirus. Can you, please, add a thread Rd 40x1/7" inner to your library? Thank you.

adrianschlatter commented 4 years ago

Do you have a spec for Rd40x1/7“?

And out of curiosity: Do you have a link to your particle filter project?

kakl commented 4 years ago

Hello, thank you for answer. There are links to the norm And there are links to the projects: https://github.com/ODZ-UJF-AV-CR/COVID19SUBEA https://drive.google.com/drive/folders/198LJC2vwE2VQVqj3EYvj3Ol7SrojzxHG

adrianschlatter commented 4 years ago

Interesting project :)

Unfortunately, there are no allowance specs under that link and we can’t aim for 0 allowance because the printed threads would not fit due to production tolerances.

I would recommend that you define the threads in your private THREAD_TABLE using allowances that suit the precision of your 3D-printer (see here for explanation of how to create your own threads: README/extensibility and Creating thread specs).