We feel that you could expect warping up to about 1/8.” We also think that we may have some breakage as well. Unfortunately, this part is not a good fit for our process.
The problem with the design is that the rings intersect at angles so the grooves need to be cut at an angle, but you cannot do that with a (2) axis laser so you have to grind or machine the angles into the grooves.
The improvement is to make the grooves wider based on the angles that the other rings intercept it. I have not sat down and worked out the geometry, but it is worth it because machining the angles into the narrow grooves was very time consuming and tedious.
I’m also going to attempt to make a cruder version out of welding wire.