|Project by Thos. Angle||posted 01-28-2009 11:50 PM||5170 views||2 times favorited||16 comments|
In 1990 I bought out a fellow who had just about everything ShopSmith put out. That included manuals. This Shopsmith Router Arm was in the deal. I used it as it was some but the table was no good. I gave it to an old friend who was a wood butcher. He has since gotten to where he doesn’t work in the shop as much(age). Last spring, I was at his house and asked if he would sell this machine back to me. He said, “No, but I’ll load it on your truck and you can have it back. I never used it much anyway.”
When I got it home, I removed the table and replaced it with one made from particle board and laminate. I then made the two movable fences. The piece to be mortised is placed between the fences and the fences are brought to just touching the project. I then adjust the two fences so the mortise is in the right place. I set stops and use the router like a drill to bore a series of holes. After the mortise is drilled out, I slide the workpiece back and forth to smooth the edges. with the set up I now have I can go to 1 1/4 inch depth. By using a longer bit and raising the arm I can go deeper. One can either round the top of the tenon or square the mortise with a mortise chisel.
This can also be used as a pin router. I haven’t put the pin system in the new table but it is in the router drawer. These sell for less than a good mortise machine on E-Bay.
-- Thos. Angle, Jordan Valley, Oregon