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Re: [ATM] ball bearings for triangles
> But the more I think about what mirror cells are supposed to do, the less
> sense having to counterbalance triangles makes to me. If you think about a
> mirror cell from the wrong direction, instead of supporting 1/27 of the
> mirror but supporting 1/3 of itself at a time, it HAS to balance. Even if
That depends on the weight of the triangle. If it is only a fraction of the
supported portion of the mirror, the induced error will be small. The
tolerance for the location of the bearing/supports might be more important.
Balance of the triangle does not guarantee this.
/Arjan
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