1st: Learn how to make the part.
2nd: Make the part.
Yesterday I smoothed the surface and shaped the contours on the left wrist clip. After cutting the join-notches and clamping it to the main assembly, several issues were noticeable.
On the sculpt, I left the semi-circle cutout a bit small, so that the alignment might be adjusted left or right if necessary. I mistakenly ground out it's alignment based an attempted self-symmetry for the part, rather than waiting until I had it clamped in place, so you can see it does not line up with the semi-circle cutout on the forearm plate. Also as you can see in the last photo, the palm-side rectangle cutout is not aligned with the center line of the main assembly, as it should be. The skew of the whole thing rather threw me off during the sculpt. Look closely at the handle of the clamp, and the jaws. The centers of those should both be lining up with each other and with the reference vertical.
Lastly, notice the gap between the forearm plate and the wrist clip. It is very inconsistent, as are the surface flush lines between the two parts.
This is just another lesson. I will re-do this sculpt, but this time I will take care to pre-mark center lines and guide-points, and measure the alignment off the entire assembly rather than just the one piece.
~ Vonnor