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8 inch Buffing Wheels
http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=43684		 Page 1 of 1
Author:  ernie [ Fri Jun 20, 2014 2:22 pm ]
Post subject:  8 inch Buffing Wheels
I bought a grizzly 1/2hp buffing system at an estate sale today for occassional use to buff out a few ukes . I looked at the grizzly buffers , but was not sure if they were appropriate for my use . I intend to use nitro laquer and then buff out the ukes. Do any of you have some good suggestions on which buffs to buy? and from whom ?? and which 2 compounds to get ?? I have the 3 part buff Beall system with a 1/3hp that uses red, tripoli , white rouge and finally wax . I use this buff for small parts like bridges etc. I was told it could be used for ukes , but it looks too tricky with a narrow 2 in.shaft . Would 10 in buffs be overkill on this machine ??Thanks :D
Author:  B. Howard [ Sat Jun 21, 2014 7:38 am ]
Post subject:  Re: 8 inch Buffing Wheels
Airway type buffs are the standard for buffing out lacquers. You need to get the surface speed of the buff correct or you will burn the lacquer if they are spinning too fast. Surface speed should be around 2600 feet per minute. I use the Menzerna compounds, you need P204 & GW 16 at a minimum.
Author:  ernie [ Sat Jun 21, 2014 1:37 pm ]
Post subject:  Re: 8 inch Buffing Wheels
Thanks brian , do you have a supplier for airway ?.I need one that can accomodate a 5/8in shaft.
Author:  gozierdt [ Sat Jun 21, 2014 6:27 pm ]
Post subject:  Re: 8 inch Buffing Wheels
Grizzly also sells a pretty large selection of buffing wheels. I didn't see any 10" wheels with 5/8" arbor, most were 3/4" or 7/8",
but it wouldn't be too difficult to make up a spacer to fit the larger holes to a 5/8" shaft. I have the Grizzly Buffing Arbor with
a 3/4" shaft, and I made spacers for wheels with a 7/8" ID. Since I'm one size larger wheel than spec'ed for the Arbor, I don't
push into the wheel with too much force, and I run the belt fairly loose. The advantage the Arbor has is that I could match the pulley
sizes to get the correct spfm.

http://www.grizzly.com/catalog/2014/Main/224

Edit: You didn't state the arbor rpm, but I calculated the spfm for a 10" wheel at 1725 rpm, and it's 4500 spfm. As Brian noted,
that's awfully fast for nitro. It's more for polishing metals. Use a very light touch if that's the motor rpm on your system. May
be too fast even then.
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