Kristin D

I have this old (~90 years old) debosing machine and am trying to make a fixture or nest to hold a dog tag for stamping. I have tried rigging some ¼” x .062” brass and silver soldering to make a holder but it would be more elegant to have a Plexiglas fixture. I am attaching a sketch of what I am thinking of and wondered how I could cut the slots and “nest” for the tag with a router. I don’t mind if I have to saw the three edges that do not fit in the guide bar of the machine, and the tag size is 1.25” x 2.0 with a .75” radius. It needs to have one edge skimmed to 1/16” inch thick to fit in a slot , there are a couple of slots on the machine guide with a 3/8 x 1/4 “ tab or slot for fastening with a 4-40 flat head. I can have about 1/8 of an inch lip in the nest part (non printing area) and that can be cut on a scroll saw or filed as it’s just to support the edge of the tag.

So I guess the question is how concentric is a router base, would it get me within .005 around the stepped cutout? The only real criteria are that the step on the long edge is parallel with the “nest” I can always shim short sides up to a point. The real problem is the whole thing can only be 1/8” thick to pass through the die turret.

If the base plate is not going to provide a smooth edge, could I use an edge guide? I have enough spare material to drill and screw it to the table to keep the acrylic in place but was wondering how to make a jig for this one-off part.



Rest of the pictures are here, rust removed now, sorry no new photos yet. http://s219.photobucket.com/albums/cc106/kd006/deboss/

Kristin

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