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wanting slow rpm

D

dave J

Joined
Feb 5, 2005
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north cent. indiana
any one with pictures/suggestions/solutions to making a lathe go super slow to sand or keep a finish like Tung oil from running while setting up? got a rotisserie motor and have it mounted to the back side of my Rikon 70-100 lathe but just can't seem to get much further. was figuring to drive the hand wheel from it
 
Without having a programmable 3 phase converter, probably not. The big manufacturers have theirs set to turn off at 50 rpm, though they can go slower than that. There are gear motors which run very slow, but at higher rpm.

robo hippy
 
dave J said:
was figuring to drive the hand wheel from it
Click to expand...

What you need is a BIG pulley on the spindle and a small one on the motor. It's not elegant, or trendy like electronics, but a guy could rig a big plywood "pulley" to affix to the shaft like the handwheel and really go slow.

A 20" on the handwheel end should be possible. With a 2 inch on your rotisserie, it would give a 10:1 reduction.
 
Several guys I know use a rotisserie motor from a BQ grill.
You need to build a stand and to hold the motor and a section of shafting.

Things like pepper mills can be fit over the shaft.
A chuck or face plate can be screwed onto a wooden piece made to fit over the shaft.

These work great to level a heavy laquer spray.

Al
 
I did that so long ago I don't even remember exactly how I attached the motor. I had slow speed motor that I got from surplus for another project. I had a Delta 46-715 with slowest speed of 500. It seems like I attached a belt to the handwheel with a homemade wooden pulley and left the motor and belt slack until it was needed for sanding. Wish I had a photo or something but I didn't do that sort of thing back then.
 
Here's a rotisserie motor with direct drive - 5rpm, rotating CCW. The driveshaft is a wood dowel, square at the rotisserie motor end, tapered LH thread (carved) at the spindle. I think I've posted some discussion on some other threads, but hard to find at the moment. The high speed setting on the lathe reduces load from the lathe motor, which is simply turned off.
 

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JOE I LIKE IT !! thats just the kinda thing I was hoping on seeing or hearing about It really is simple and lets me see I was on the wrong track trying to drive the hand wheel with some sort of belt that just was not working. also wanted to be able to have the motor do double duty with out any real permanant changes YOUR version will let one do that !! Thanks to all for replys. Dave j
 
Joe Greiner said:
Here's a rotisserie motor with direct drive - 5rpm, rotating CCW. The driveshaft is a wood dowel, square at the rotisserie motor end, tapered LH thread (carved) at the spindle. I think I've posted some discussion on some other threads, but hard to find at the moment. The high speed setting on the lathe reduces load from the lathe motor, which is simply turned off.
Click to expand...

is this motor power by batteries or house current ?
 
Hi Dave...I think you will have much better luck with this method. Wipe on the finish with a rag, allow to set for a few minutes, then wipe it until nearly dry. Every so often, perhaps each day, repeat the process... sanding lightly between coats. Eventually, you will achieve a flawless finish with no brush or streaks. A thick coat of many tung oil type finishes won't dry properly, and you may end up with a sticky mess.
 
ray hampton said:
is this motor power by batteries or house current ?
Click to expand...

House current. No on/off switch; apparently that's normal with rotisseries. I've collected two from garage sales, one CW and the other CCW. For cooking, I guess it doesn't matter. For this application it does matter, because of the lathe spindle's internal thread. On another lathe, I was able to rig a coupling to the outboard shaft with the other rotisserie motor.
 
I got my rotissire motor at the local Wal mart it comes with brackets/hardware to mount it to most any grill. IT does have a switch. turn it on and off and back on changes rotation direction. Having paid $25 for the kit, guess I best use it !!
 
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