ok so i did want to try out hinging from the other side for shoulder buttons. i had fun designing this as the intersection (or difference) of a bunch of circle slices, plus fillets:
the other improvement is for ease of putting it together. i've added some pedestals inside the shoulder button that the columns slot onto, so they aren't loose or hard to line up (ideally). here's a cross section.
the columns have a large flat top so they can "support" the keyboard crossbar, which isn't pictured (or really needed) for the shoulder tester.
printing it now, will return with observations. [edit] and now we have it printed.
i think this is better but of course i'll want to test the full case. i'll want to make the button longer; the old version had a little more surface area.
[edit2] started another prototype print on the full case, i'll share that in a new post soon but wanted to show the shoulders in action here.
i think i do like them this way, you're not able to push into the pivot accidentally like you were on the previous model; i.e., there's always a
lever arm.
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