This is a 1/8" comb that fits all Wahl brand clippers. I made it because I lost mine. I just measured and recreated the model from my surviving combs.
(Note: Print in real life photos didn't have text because I forgot to select it when exporting to printer.)
I've also included a model of just the base plate if anybody wants to model their own. It should theoretically be possible to parameterize comb models wrt clip length. If anybody is interested in doing this or is just trying to make a different size comb, let me know, I'll tell you what I discovered about the various sizes and angles and stuff.
I don't have an FDM printer so, that's an exercise for the reader.
Printed on a Form 3 (SLA) with Tough 2000 resin in about 2.5 hours at 0.05mm layer size. You could try Tough 1500 or Durable too, but I would not use a Standard resin or Grey Pro, they'd definitely be too brittle.