Any ideas or thoughts on making a edge finder come touch off tool

[cropwell]

I am still using the touch-off block I made about 5 years ago, although it is getting a bit old and battered.


A simple bit of brass stock, faced off and an acrylic disc bonded to it and trimmed on the lathe. Turn it round and face the top and then mike it up to make sure the faces are parallel. Drill a 4m 'ole in the side for a banana plug et voila!

I find it more convenient to touch off the tool as I have a simple collets pindle.