Yes, exactly.
I'll eventually get a chance to fool with it and get it working, at which point I will document on the web site. I haven't gone further than to hook it up to the ohmeter and try it. Frankly, I needed it one day and was annoyed when my jogging broke it (LED stayed permanently on and I never did figure out why).
Here's the deal. If you unscrew the battery compartment, there is a battery, and below that there is a little LED assembly in a plastic tube that just drops out.
I took the little plastic tube a 3/16" endmill arrived in and discovered it fits nicely into the edgefinder. I drilled the end and stuck a wire down it and out the hole in the bottom of the plastic tube. Stuck a 1/4" dowel pin into the top of the endmill holder to wedge the wire in place and drilled a hole in the side of the edgefinder at top for the wire to come out. I needed a little heavier spring between this assembly and the battery cap to reliably hold it in place, but that's all there is to it.
You get a contact closure between the body of the edgefinder and the wire, which connects to the tip inside the black insulated area just by rubbing against it, whenever the edgefinder contacts the workpiece.
Refer to Hoss and others to see how to set up the screens and such for Mach3 to use this as an edgefinding probe.
For those that have broken their edgefinder, this may provide interesting new life for it.
Cheers,
BW  |