Shopsmith Forums

I like the $4 idea, especially for occasional use. If you only use it a few times a year it will probably last quite a while.

This is a very interesting idea.

I am posting as a new Power Pro owner.

I'm finding the Power Pro to be quite an excellent motor, but running the 12" Sanding Disk is "interesting." I suspect the Power Pro electronics speed-control feedback-loop system is very well optimized for table-sawing, drilling, drum-sanding, etc. However, the 12" Steel disk has so much rotational inertia (appreciable mass out to 6" away from center) that it seems to make the motor "dither" around the intended speed. (I studied control-loop theory in school; I suspect that steel-disk inertia makes for a lower loop-gain than for the other modes.) When you add in a small amount of play between drive-sleeve and quill-shaft, the thing can rattle as the speed dithers.

I'm still early in thinking about this, but I'm contemplating:
- Trying a 10" steel sanding disk (knowing the 10" saw blade runs great).
- Trying a 10"-12" lighter-weight homemade disk of sorts.
- Trying an aluminum sanding disk.

I was sort of attuned to this high-inertia fact a couple years ago on my regular Mark V. I made the stupid mistake of starting the machine on "Fast", after service, with the big 12" steel disk on there. The machine went unstable, cycling from slow to fast repeatedly (belt and sheaves moving around), and actually damaged the idler bearing.

prmindartmouth wrote:I was wandering through a home accessory store following LOML, and noticed a display of charger plates on sale.

What was the name?

Available lots of stores I think, I got mine at TAG locally. Here is their website:

http://www.tagltd.com/index.aspx

I made two of these and they are quite light but have yet to use them in any serious manner.

I've been using the 10" Woodcraft steel disk on my benchtop saw for a year and started using it on my 10e and Mark V this summer after getting them. It works well and doesnt seem to deflect. Also, the one I bought has a flat side and a slightly tapered side. Havent used the tapered side yet.

moggymatt wrote:I've been using the 10" Woodcraft steel disk on my benchtop saw for a year and started using it on my 10e and Mark V this summer after getting them. It works well and doesnt seem to deflect. Also, the one I bought has a flat side and a slightly tapered side. Havent used the tapered side yet.

Tapered side = conical disk??

mickyd wrote:Tapered side = conical disk??

Sorta like a Mark 7 I presume.

Sort of conical but not really, see link and reviews from users

http://www.woodcraft.com/Product/200180 ... sc-10.aspx

Ed

SDSSmith wrote:After reading the description and some of the reviews, I am wondering if they are selling the flat plate style or a dish shape. I would not expect a dish shape based on the description....I would expect a flat plate.

Ditto Ditto