Customizable Parametric Simple Bitholder v2

Inspired by Bit holder by mattbeechan.Unfortunately v1 had some major issues (I did not properly test :S ). The v2 was tested more thoroughly and I added a few nice features (such as the tightness control and the added magnet feature). If you should run into any kind of problem, please let me know in the comments.This model is highly customizable (see section “What is customizable”). There are also a few examples added for inspiration.”

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