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Post by knave on Mar 29, 2020 16:33:31 GMT -5
I have the stock 2” Lortone expando wheel on the LU6-X, just got quite a few new belts in from Kingsley North, and I’m having trouble.
When it’s spinning free the paper is loose on the drum so it vibrates on the rock. With more pressure, the vibration goes away, but the belt wildly scoots from side to side depending what angle or which side I am working. Do I need new foam? Thanks for your help.
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
Posts: 1,791
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Post by zarguy on Mar 29, 2020 17:16:21 GMT -5
I cut a strip of rubber sheeting the width of the drum & as long as the circumference of the drum.
I fitted it around the drum before I slipped the belt on.
It takes up the space so the belt doesn't slip.
I use diamond belts and have a drum for each belt, so I'm not swapping belts often.
If you swap belts, you could glue the rubber sheeting to the drum with temporary rubber cement (like Borden's in a brown bottle).
You may need more than a single layer.
Home Depot sells as pond liner by the foot.
A friend re-roofed his RV with rubber sheet that was similar to pond liner.
Lynn
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Post by mohs on Mar 29, 2020 17:39:45 GMT -5
I didn't have the problem a few years ago Too much Starting back up- I have it bad. But my belts are old weather worn And the expando as been sitting for a few years I just bought a new 400 grit S/C and the problem not as bad If at all The one thing that as helped a lot is to make sure the machine is level Mine was out of kilter. I used a level and used some rock wedges to level it up. Helped a lot! So I’m hoping new belts are the answer. I like that rubber cement sheet trick Been thinking of something like that  I have to use the resources I have. My local jewelry supply house just closed for the virus. Uuuugghh. So getting new belts will have to wait till next season God luck with that , Evan. Make sure the machine is level. And If you find the solution let us know . In the meantime I play the chase the typewriter carriage while sanding. Ya get good at it! Mostly |
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Post by mohs on Mar 29, 2020 17:46:44 GMT -5
strange tho Evan
that with new belts there that loose
that they spin around the expando
never had that problem
Altho, I use inexpensive S/C black belt
not much experience with diamond belts
Let us know
if anyone figured
your a good candidate ///
I've also considered using some double sided tape
just on the edge
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Post by knave on Mar 29, 2020 17:52:35 GMT -5
It’s just the low cost SiC belts from Kingsley. I’ll try replacing the rubber.
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Post by mohs on Mar 29, 2020 17:54:05 GMT -5
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Post by knave on Mar 29, 2020 18:01:28 GMT -5
Aluminum with foam rubber coating here.
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Post by mohs on Mar 29, 2020 18:03:23 GMT -5
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Post by knave on Mar 29, 2020 18:03:55 GMT -5
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Post by mohs on Mar 29, 2020 18:08:01 GMT -5
yep its worked well
the side to side slide problem
as mostly just started
hopefully we will get afix
I'ma working on it...
as I understand it
the CabKing type of expando
is suppose to expand
from the rpm's...
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Post by oregon on Mar 29, 2020 22:04:23 GMT -5
Exact-Span vs Expando - they're different drums, For 8" drums, they take different sized belts. Not sure about 6"?
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