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Clock wheel cutter

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raynerd:
I was over on PP Thornton website and it got me thinking:





If I took my time and ground a similar profile on it, could I not turn my blank into a multi tooth:



Obviously I would have to take some material of the back edge of each, as it would be central mounted and therefore the relief would be need to be cut into each "tooth".

Am I missing something?

Chris

Bernd:
If I remember right. Cutters like those are cut on a relieving lathe. The cross slide runs on a cam that makes the tool cut the relieve as the cutter revoles. That's about the least complicated way of explainging it.

Got the pics you wanted posted in the clock thread I started.

Bernd

CrewCab:

--- Quote from: craynerd on November 05, 2009, 04:25:35 PM ---Am I missing something? 
--- End quote ---

Time and experience I suspect, that's what your paying for by buying one of their cutters, if you believe you can match their product then go for it .........

One reason for buying the cutter is .......... you can, .........  One reasons for making your own is ....... you believe you can, finances obviously come into the equation too ...... whatever you choose. good luck and enjoy the ride.

CC

sbwhart:
Bernd got it spot on, a long time ago I used one of those lathes along with a grinder that did a similar job.

Having said that there is another way to do a multi tooth cutter with an off set mandrel, but your too far into the job now to do it.

Have fun

Stew

raynerd:
Cheers guys, yes, I`m going to stick with this for now - it is working so I don`t know why I`m considering changing anything! I guess I was just curious. I have been speaking to someone lately who simply grinds the profile out of a piece if square tool steel and locks it into a fly cutter! That must take a steady hand on the grinder, the profile is tiny!

Anyway, just got in from the shop from making a pillar.... I`ve actually started  :dremel: :clap: I guessed I could start on some of the other parts while I figure out this gear cutting!

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