Shopsmith Forums

Any 12" disks will work. However, I agree with Dennis. The SS Ceramic disks are truly amazing. They don't clog, the grit seems to never ware out and they last a long long long time.

Thank you for the tip. Mine is a 10" for a MkV mod 500. Right now I don't know a PSA from a ceramic but I will find out. What came with mine is the 10" round metal disc and it looked almost like the sanding paper or disc had a paper backing. It was white and mostly torn off so I don't know if that was a ceramic or an A/O.
John

jhcole wrote:Thank you for the tip. Mine is a 10" for a MkV mod 500. Right now I don't know a PSA from a ceramic but I will find out. What came with mine is the 10" round metal disc and it looked almost like the sanding paper or disc had a paper backing. It was white and mostly torn off so I don't know if that was a ceramic or an A/O.
John

The backing is paper. The grit is ceramic. PSA means Pressure Sensitive Adhesive. That is what sticks the paper to the disk. SS ceramic disks have a ceramic abrasive as opposed to Aluminum Oxide or some other abrasive. SS ceramic abrasive disks are PSA disks.

Try www.supergrit.com They are near Gettysburg Pa. They also have the 12" hook and loop conversion disc if you are
interested
Bill V

A Mark V 500 should have 12" steel disk sanders.

Perhaps a picture of the 10" disk would help, as far as I know shopsmith didn't make a 10" but others did and do. My brothers 10ER came with an 8" and then the 12" AL disk. My 10ER came with the 12" AL disk too.

I've not had the good experience with the shopsmith ceramic papers on the ones I got for my belt sander. Maybe my methods or the wood was not a good match but I got about a half the life that I normally get on generic papers for many times the price. I have not tried the sanding disks.

The ceramic is also limit in the grits you can get. From memory the finest is maybe 120, not bad but the more course grits get way down there.

I like a disk for every grit and type so I don't have to swap papers. If you don't do anything but sanding wood then at least 3 disks will do. The Velcro allows easy grit swaps but is soft so it easy to round corners and the velcro can get damaged with too much pressure, so while I have it, it sees limited use.

Ed

The Mark VII had a 10" dual sided(flat/conical) sandingdisk,

JPG wrote:The Mark VII had a 10" dual sided(flat/conical) sandingdisk,

Will it take regular disk paper or does it have to have a center hole?

I have a old craftsman disk with the same function but it mounts like a blade, that is reason I'm asking.


Ed

reible wrote:

JPG wrote:The Mark VII had a 10" dual sided(flat/conical) sandingdisk,

Will it take regular disk paper or does it have to have a center hole?

I have a old craftsman disk with the same function but it mounts like a blade, that is reason I'm asking.


Ed

The hub side(conical) requires a void in the center and a 'slit' like the 12" conical disk. The flat side does not require a center hole.
The MVII was intended for use 'in the slot' like a saw blade.

And there was a 9" sanding disk for the Sawsmith radial arm saw.

http://vintagemachinery.org/pubs/339/3286.pdf