Was watching an old "What is it" segment of "Ask this old house" the
A viewer had sent in a working prototype of his idea.
A circular piece of wood 1/2"-3/4" thick with a group of 3/8" dowel
pins projecting about 1/2" from a flat face.
The dowels were arranged in a geometric pattern that just happened to
match the dust pick up holes of his ROS.
Place sandpaper on gadget aligning holes with dowels, then align
dowels with holes on ROS and seat paper.
Neat idea IMHO.
Quite. If there is a problem, just stick a pencil into one hole on the
ROS and drop the sandpaper over that, through the corresponding hole
in the sandpaper disc. Aligning all the other holes is now merely a matter
of rotating the sheet.
Remember to remove pencil before operating the tool.
If that's too difficult (then maybe you shouldn't be using power tools :-),
just use another pencil in another hole - 2 reference points is all you'd
There is always a down-side to marking things 'up-side'. The up-side
is that when marked 'up-side', the downside is that the down-side
isn't marked 'downside' in most cases. That holds true no matter which
side you're on.
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