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Disc sander inner workings

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Project by quicksilver posted 852 days ago 3517 views 6 times favorited 2 comments Add to Favorites Watch

Your situation may be different than mine so make sure of your measurements and observe all safety precautions.

ShopSmith discs are high quality and run true.
The 11” bandsaw is small and pricey but really good. I find it has some advantages over the competition.
Jointer is excellent, wish it was 6”. Haven’t used the belt sander much but now that I have the little red wagon I plan on using it more.

The machinist made two shafts of steel, 3/4” x 15” long and 18” long for the little red wagon.
Biggest problem for shafts is the minimum labor cost at machine shops which is high.
Pulleys on the sander are 3” to 3” with a 1725 rpm? Not really sure of the motor speed as the motor came off an old rock saw.
Longer shaft was for two 4 step pulleys on the little red wagon as I used it to power the bandsaw, belt sander, and jointer. Only the jointer needed to run at 3450 rpm.
1725 motor with 2” to 6” pulley and a 3”to 6” on the shaft.
See the little red wagon project.

12” discs
http://www.shopsmith.com/ownersite/catalog/sn_sandingdisc.htm
Mounting base
http://www.shopsmith.com/ownersite/itemfind.htm?item=505655

If all you are running is a single ShopSmith accessory then build/buy a stand with the mounting base, and a motor.
ShopSmith makes a variable speed power station.
http://www.shopsmith.com/ownersite/catalog/powerstation.htm

I bought a ShopSmith Mark VII which has a built in vacuum and tilts both ways giving you a drill press and shaper.
I bought extra critical parts when I bought it in 1984 from Battels Hardware in Whittier, Cal?
Was a great machine but parts were not available for the vacuum.
I just got tired of switching things around.

Lathe disk sander in ShopNotes issue 49 is a good one if you have a wood lathe standing idle.
Could have multiple disks with different grits. If you have a variable speed lathe all the better.
Only cost would be an extra 6” faceplates.

-- Quicksilver





2 comments so far

View stefang's profile

stefang

12865 posts in 1959 days


#1 posted 851 days ago

This looks really good. I like the double disk arrangement, especially great to have when you are sanding at an angle on one and still have the other at 90 degrees. Great work on this!

-- Mike, an American living in Norway.

View quicksilver's profile

quicksilver

175 posts in 1212 days


#2 posted 848 days ago

Thanks Stefang for the kind words
I hope I have given others a few ideas.

-- Quicksilver

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