Saw a pic of one on here once ,who did it and how??

Don't understand your question!

not a ridgid-but the concept is the same-that is the pattern jig sitting on it----
 

Mike what's the curved metal made from?

1" x 1/16" steel
sorry I was so long--I was out of town hunting

Nice simple setup, Mike!!

it was a proto type that worked so good I still use it kenny

OK thanks

Bamboo, can you explain how it works- looks like a chinese puzzle to me- cant figure  it out  

the riser block is roughed out slightly over sized on a bandsaw---then clamped in to the pattern jig to ground to finish shape
you push the base of the jig against the "rub-rail' and grind the riser blank until it matches the shape of the pattern jig ---I hope that helps

Good setup. Bue--.    

so i guess the pattern jig is 1/16" smaller than desired finished size- or even  a tad smaller than that to match the  gap.
does the steel rub collar have a flange on the underside, so that it is attached to the underside of the table?
many thanks
wayne

no flange-but the plywood is double thick @the drum-fitting trough the hole in the cast iron-giving the rub collar twice the attachment area and a purchase with the machine

cool thx.
so its screwed to the plywood base plate- and it in turn is clamped to the cast iron surface?
many thanks

correct--

awesome, thanks mike
wayne

I can make a flange for the rigid sander. It's out of a high impact plastic.  Let me know if you are interested and I'll send you pictures.  It's what I use for mine.

I have the Rigid and would like to see your setup.

Me too I'd like to see your rigid Sanders set up .joe

nother "me too" on that.  Maybe you could post photos here?