(2019-12-06, 6:41)N. W. Perry Wrote: I was able to get close on the first 3 steps (see below) by using successive approximation along with my intersecting circles method, then made some final small tweaks to account for the wrist rotation—again, good enough, but necessarily imprecise by nature. Guess I'll have to break out the trigonometry again to find the truth!
You could try to find the exact intersection of the arm disc with the lever's rotational sphere.
Not sure how to that though.
Afterwards set the arm using a helper part at the found location, then use closed triangle info to position the lever in 2 steps.
And last rotate the hand to match the lever direction (could probably do that with rel grid, reset orientation).