Quote:
Originally Posted by iyportne
The balls are 0.250" DELRIN bearings. The channel depths are 3/32" leaving a 1/16" float gap between plates. The parting tool is actually 0.250 circular arc so the channel is a concave path with nearly full contact with bearing circumference. Running dry there is no apparent bearing-to-bearing interference. The first prototype was cut with CNC Mill using a ball end mill, but that was very slow and produced too much cutter advance ridging perpendicular to ball path.
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Ahh, ok. All of that sounds good. I've never used a parting tool with a convex face.
Also, this may just be the angle, but the teeth on your watercut gear look more shallow than the teeth on the VexPro gear. Is this just a trick of the light, a mistake in the manufacturing, or did you use a slightly different profile from what's on the VexPro gears?