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+--- Thread: Mill Transmission (/thread-957.html)
Mill Transmission - the penguin - 11-02-2012
I don't have any current shop projects going on, some fabrication for work, but I decided to post a project I did a few years back.
I have a Jet JVM 836 milling machine, everything I wanted, solid, small and well built. The only thing I didn't like was the limited number of spindle speeds, 5 speeds, 250 rpm to 1550 rpm. So I built a "transmission" to increase the number of speeds, built from stuff I had in my parts inventory, my cost was less than $50 of parts bought.
The "transmission" is nothing more than a extra layshaft and a another set of pulleys, it was made as an insert module, you pull the motor, insert the "transmission" then reinsert the motor. At anytime I could, in about 5 minutes, I could return the mill back to its original to configuration.
RE: Mill Transmission - EdK - 11-02-2012
Jack,
Nice job on the transmission. What's the speed range after the conversion?
Ed
RE: Mill Transmission - the penguin - 11-02-2012
Ed,
25 speeds, from 48 rpm up to 1550 rpm. with much smaller steps between the speeds.
RE: Mill Transmission - doubleboost - 11-02-2012
Hi
Jack
Very neat
You cant have too many spindle speeds to play with
John
RE: Mill Transmission - sasquatch - 11-02-2012
Very nice project!! Interesting post.
RE: Mill Transmission - DaveH - 11-02-2012
Jack,
Looks like you did another great job
DaveH