|Project by rmac||posted 07-22-2010 05:45 PM||13582 views||75 times favorited||31 comments|
The dial and the screw on the table saw fence micro adjuster posted by BritBoxmaker a few days ago reminded me of a similar mechanism on a jig I made a few months ago. Instead of allowing precise adjustments to the fence, my jig makes it easy to make precisely spaced crosscuts. I originally intended it as a box joint jig, but it’s actually useful for other operations as well.
My jig is a variation on a standard crosscut sled. The basic idea came from Matthias Wandel's orignal box joint jig. Instead of a crank like Matthias used, I put a knob with a dial on mine to move the carriage crossways past the blade. Each mark on the dial represents 0.002” of carriage movement, so with a little planning, you can make any sort of box joint you want. At first I had numbers on the dial, but I found that the colored lines and dots on the dial shown in the pictures made it easier to use the jig without making stupid mistakes.
The first few pictures show the jig itself. The last few show some of the first joints that I made with it.
Update, November 13, 2011: There’s now an article on my blog with plans and lots more details about this jig.
-- My table saw laughs at hot dogs. http://thesorteddetails.blogspot.com/