21-02-2021, 12:13 PM
(This post was last modified: 21-02-2021, 09:57 PM by Stuart Giles.
Edit Reason: more text added
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(21-02-2021, 12:02 PM)Parazine Wrote: I thought I had a requirement to cut a keyway in a replica cast magneto vernier. Turned out, I didn't need to but I couldn't see how to do it without a shaper. You can find small, bench mounted, hand operated shapers that would be ideal for cutting these small keyways and I might look out for one next.....
Well, you'd get some valuable exercise using an "Adept" style manual shaper....mounted on a big chunk of angle you can clamp the whole thing in a vice. But I have cut keyways accurately using a lathe. Got the tool set up sideways on and the headstock locked. Then just wind in the saddle taking light cuts on each stroke gets the job done. Having said that, I did still buy a slotting head for my Bridgeport a few years ago.
Edit: Austin In The Shed obviously types faster than me. I've only just noticed that we have given pretty much identical advice re. cutting a keyway in the lathe.....