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10-06-2018, 04:57 PM
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Join Date: Dec 2017
Location: Chicago C77
Posts: 32
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Scotchbrite wheel
Anyone have a place to by 6? scotch brite wheel for bench grinder? The one I purchased from McMaster did not last long.
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10-06-2018, 05:43 PM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,514
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Quote:
Originally Posted by jpflys1
Anyone have a place to by 6” scotch brite wheel for bench grinder? The one I purchased from McMaster did not last long.
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http://www.cleavelandtool.com/3M-Cut.../#.W7lJUy_My8U
__________________
Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
Last edited by BillL : 10-06-2018 at 05:46 PM.
Reason: updated
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10-06-2018, 05:44 PM
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Join Date: Jan 2016
Location: Sugar Land, TX
Posts: 406
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You can buy them from Cleaveland tools. http://www.cleavelandtool.com/3M-Cut.../#.W7lIRfZFzIU
I got mine from them as part of a tool kit from Cleaveland. I've used mine a lot in building my RV-10 and it is still going strong. But I've got it mounted on a low speed 1,750 RPM grinder, so that may be a reason for my success with the wheel.
Cheers,
__________________
Dave Macdonald
RV-10 First Flight April 1, 2020.  Currently in Phase 1
2020 VAF Dues Paid
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10-06-2018, 06:05 PM
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Join Date: Apr 2005
Location: KDUH
Posts: 88
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TOOL SBW
Van's has them for $76.00. Handy if you happen to need other parts from them.
http://www.vansaircraft.com/cgi-bin/...roduct=s-wheel
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Tony Kirk
Van's Aircraft Tech Support
Building RV-7 (N777RV Reserved)
RV-6A N57TK (sold)
First flight 9/5/05...
Sold in 2011 after 725 hours of pure joy!
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10-06-2018, 08:25 PM
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Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,818
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OMG! Something Harbor Freight doesn?t have for 99 cents!😱
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10-07-2018, 07:08 AM
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Join Date: Aug 2014
Location: Bowie MD
Posts: 886
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A grinder is too fast for making the scotchbrite last IMHO. I chuck mine in a variable speed standing drill press and so far one has lasted me thru my entire build - year 5.5 now......I dont know what speed its on, but its probably no more than 500-700rpm - not super fast and for sure not even remotely as fast as my grinder......
__________________
Mani
Busby MustangII (FoldingWing) Pending DAR.
Don't be a hater; I'm a cousin with thin wings! 
N251Y (res)
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10-07-2018, 07:22 AM
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Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
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The high $ 3M wheel will last much longer than he cheaper alternatives. It works better as well.
Also, working the piece across the wheel vs in line with the wheel will prevent grooves from forming. Work across the wheel for rough finishing and then switch to in line with a smooth pass and the parts will look and feel mirror smooth.
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10-07-2018, 07:42 AM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Quote:
Originally Posted by maniago
A grinder is too fast for making the scotchbrite last IMHO. I chuck mine in a variable speed standing drill press and so far one has lasted me thru my entire build - year 5.5 now......I dont know what speed its on, but its probably no more than 500-700rpm - not super fast and for sure not even remotely as fast as my grinder......
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Ditto for me and you have better access to it.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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10-07-2018, 01:58 PM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,026
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Scotchbrite wheels come in many different grades (just like sandpaper and scotchbrite pads)
The rate they wear depends on the one used, and how it is used, and not so much how fast it is turned. The best tool to mount one on is a powered buffer. It has no shield to limit access to the wheel and the shaft is long to move it farther away from the motor and give good access to the wheel.
The cheap one at H.F. hold up just fine for this use.
The wheel we use in our shop is the same one sold in the Van's Accessory catalog. We use it a lot, but it lasts a looooong time (probably a couple years at least).
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
Last edited by rvbuilder2002 : 10-07-2018 at 02:02 PM.
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10-07-2018, 09:02 PM
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Join Date: Dec 2005
Location: San Pedro
Posts: 1,013
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Agree
On Scott's recommendation, I went and bought the HF buffer as shown above. It has held up extremely well and the results using Van's or a 3M wheel are excellent. I now have a deburring wheel on each end of the buffer. One has a round profile on it and the other is flat. I imagine that I could produce two RVs without replacing wheels using this system.
I highly recommend that you purchase a box of dust masks (3M) with the nipple on the end. These are about $2 each but what is your health worth? One of these dust masks lasts for a long time.
You will be amazed at the amount of aluminum 'dust' that appears in your shop unless you use a vacuum at the buffer. 
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Building finally
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