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angular DoF joints need better error logic around +/-PI #47

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angular DoF joints need better error logic around +/-PI#47
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bugSomething isn't working

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@rcoreilly
rcoreilly
opened on Jan 20, 2026

Describe the bug

It is still breaking down when rotating "around the horn".

How to reproduce

virtualroom shows it

Example code



Relevant output




Platform


macOS
Activity
  1. rcoreilly
    added 
    bugSomething isn't working
     on Jan 20, 2026
  2. rcoreilly commented on Jan 25, 2026 
    @rcoreilly
    rcoreilly
    on Jan 25, 2026
    MemberAuthor
    for PlaneXZ, changing rotational axis to anything other than Y doesn't have the problem. There is something specific to Y axis.
  3. rcoreilly commented on Jan 26, 2026 
    @rcoreilly
    rcoreilly
    on Jan 26, 2026
    MemberAuthor
    Ahah. It is about collision friction of box on plane! floating slightly above the surface, with no gravity, gets rid of the problem!
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