New Proxxon lathe question #1
On Mon, 5 Mar 2012 20:00:49 -0500, Jim Wilkins wrote:
"Bob S" wrote in message
However, it may be that no knurling tool is going to work well as
the
last step on a filter ring because the ring is thin and will bend
under the load. Maybe I need to knurl first and then bore out the
center.
Bob
If you can index and lock the spindle you could manually shave
gripping grooves in the OD of a ring with an appropriately ground
lathe bit in the tool holder. Don't expect to take more than a few
thousandths off per pass.
The carriages on lathes I've tried it on had to be held down against
the ways with one hand while I cranked them toward the headstock to
shave off the chips.
jsw
I suppose that another way to get grooves would be to take the part
off the lathe, mount it on some expendable wooden rotating and sliding
fixture, and make grooves with a Dremel grinder.
Or if I can get the Unimat II going as a mill I could cut grooves as
though it was a gear-cutting exercise; that would probably be a lot
neater than trying to control a Dremel...
Bob
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