oregonrock
off to a rocking start
Member since January 2019
Posts: 3
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Post by oregonrock on Mar 15, 2019 21:31:23 GMT -5
I built my cabbing machine. All parts are brand new. The wheels are 6 inch. Turned the cabber on for the first time. It vibrates a lot. Took the wheels off and put them on a lawnmower blade balancing tool. It shows that they are out of balance. Have you ever had to balance your wheels? How did you do it?
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QuailRiver
fully equipped rock polisher
Member since May 2008
Posts: 1,621
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Post by QuailRiver on Mar 16, 2019 11:14:53 GMT -5
What types of wheels and what configuration?
Larry C.
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Post by catmandewe on Mar 16, 2019 11:19:02 GMT -5
Tighten them finger tight and spin the arbor, watch for any that seem to be protruding, loosen them and spin the protruding one back or forward a little and then repeat. You should be able to move the wheels around a bit and get them to basically balance each other by using the out of balance wheels opposite of each other to create a balance.
Tony
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oregonrock
off to a rocking start
Member since January 2019
Posts: 3
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Post by oregonrock on Mar 16, 2019 13:27:12 GMT -5
I have a 80, 220, 280, 600, 1200 & 3000 grit diamond wheels. The 80 & 220 are nickel plated. The rest are soft, resin bond wheels. What should I use as a weight to balance the wheels? It takes about 2.5 grams to 7 grams to balance. I thought about using a penny, but don't want the penny flying by my head some day! Looking for something that won't come off of the wheel and still be safe.
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Post by mohs on Mar 16, 2019 13:39:41 GMT -5
a trick we used in the grind house for balance of wheels
the first thing is to make sure the arbor is running true then we's scribed a mark on that arbor spindle
then when we mounted a new wheel we would mark that wheel
essential;y all the wheels had a marked location
whenever we changed out wheels we would align the marks to spindle that way the wheel was always put back on at the same location on the arbor spindle
its a good practice but only applies mostly to grinding wheels that are dressed and trued to the arbor
not sure what to do about an out of balance problem with multiple wheel on one spindle ?
would have to individually balance the wheels and then always mount in the same location on the spindle
interesting problem
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,339
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Post by quartz on Mar 17, 2019 0:06:51 GMT -5
If you have to stick something on the wheels use the proper weight metal rod about 1/4" diameter, rough the area of attachment and glue it down with adhesive caulking.
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Post by parfive on Mar 17, 2019 1:00:50 GMT -5
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QuailRiver
fully equipped rock polisher
Member since May 2008
Posts: 1,621
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Post by QuailRiver on Mar 17, 2019 13:15:26 GMT -5
I would under no circumstances add weights. Metal hub wheels can have weight removed from a heavy side by drilling shallow divots.
Are you using a Genie/Titan/CabKing type arbor or one of the older styles that have some of the wheels mount on a section of arbor between the bearings?
And it would help us to know what type of hard platted wheels you're using?
Larry C.
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cozmonautt
off to a rocking start
Crystal Addiction is Real
Member since August 2018
Posts: 18
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Post by cozmonautt on Mar 18, 2019 11:56:36 GMT -5
Are you absolutely sure it is only the wheel that is causing the vibration? I had a similar issue recently. I started by replacing the bearings, which helped quite a bit once I got them mounted properly. I used 'self aligning' flange type units with concentric collars, of good quality. Still some vibration but noticeably less. So then I ordered some pretty nice wheel flanges and spacers from Covington Eng. to give greater support to the wheels, as well as new bushings just to eliminate another potential variable. After that, everything was running much smoother and and a lot less noisy. Otherwise, like stated above , you may just have to find the best possible combined alignment. Also, do you have a build thread for your machine? Best of luck! -Alex- covington-engineering.com/supplies/aluminum-spacer-flanges/
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