For Smithy Owners

[davestea]

check out this link for a layout on a Smithy thread dial - copy and paste this link or click it if you can.

http://www.chaski.com/ubb/showflat.php?Cat=&Board=machtools&Number=16063&page=0&view=collapsed&sb=5&o=&fpart=1

[jdk]

For Dave S. Very nice job. I have two guestions. Where did you mount it. Its hard for me to see from the pictures, Next. What did you use to make the scribe marks in the dial face? Thanks Jim

[Locksmith]

Dave,
What model Smithy do you have?

[davestea]

I have the CB-1220 LX (Granite).

If you look on the right side of the carriage you will see 2 screws holding the short way cover. Strangely enought these are 10x32 threads. Nice and convenient!

I mounted a small plate about 2x2" x 1/4" using one of those holes (the rear one) counter bored the alum. plate for the #10 cap screw head. You can see that in the second photo. In the other counter bore I put a short piece of spring for tension. A small ball and a detent would have been nice additions I may do later.

I drilled the #21 (#10 clearance) hole full through the block. Then re-drilled 5/16 for the cap screw head - drilled into the opposide side (across the shaft hole) so the mounting screw is below shaft surface. Then made the 3/8 retainer with threaded rod and locked it in with the shaved nut.

I mounted the dial itself in an ER collet. The holder has a #2 MT so it fit the center of my 6" rotaty table. Ground a 1/4" tool to a sharp V and inserted it into an angular fly cutter (didn't have a flat one). Put it in upside down. Then with 3 separage clamps I locked my milling spindle. Moved the rotary table/collet/dial into the cutter about 10 thou at the center and cranked the knee to drop the table until the tool exited the dial. Then did it again with just a couple thou into the cutter.

I did all the mill work an a separate mill - not the smithy but can be done pretty much the same way - rotary table flat - use the carriage feed to drag tool across the dial. Could be done with an engraving tool spinning in the milling head.

I stamped the number into the dial with numbered stamps. Hmmm - guess that's redundant Course they were numbered stamps.

contact me directly if you want to. I have other photos. Unfortunately I did not take any during the dial marking.

[davestea]

correction - it's a Misas not a Granite.

sorry 'bout that.

[Locksmith]

Kind of thought so. I have a granite 1324 and it has a threading wheel. I couldn't figure out why you did it, at first, but now I know.