[GeorgeIoak]

Almost all of the edge finders I've seen have either a 1/2" or 3/8" shank. I use a Bosch Colt Router so the maximum shank is 1/4". Does anyone know of any edge finders with a 1/4" shank?

[dixdance]

Fisher Machine makes a 1/4" shank edge finder, just look on eBay.

MICRO EDGE FINDER BY FISHER 1/4 or 3/8 or 1/2 SHANK | eBay

But the max speed they recommend is 1500 rpm, will your router go that slow?

[GeorgeIoak]

Thanks for looking but I saw that one and no I can't go that slow. So the hunt continues...

[awerby]

You don't need to turn the router on when you're finding edges. Just feel the edge where it is offset; you can actually feel smaller differences than you can see.

[dixdance]

Andrew, have you ever done a test to verify how accurate that is? Compare it to a reading with a spinning spindle using a mill

I'm wondering whether it wouldn't work to spin the router by hand, or rig up a way to spin it with a dremel or something. I have the same need...

[GeorgeIoak]

Good point about not having the router turned on. Might be worth a shot to try it. It just seems a bit odd to me that there really aren't any 1/4" shank solutions.

[squirrel_41]

Hi guys just a question ? are you using Mach3 if so why bother with a edge finder when you can use a a probe

[GeorgeIoak]

Yes, I'm using Mach3 but when I inquired about this in another thread people said to use an edge finder. I actually have a couple of probes but never go around to "programming" Mach 3 for the touch routine.

[squirrel_41]

Well a probe is the only way to go I have built a complete set of routines. All that you will ever need and I can help you through any issues.
that you might have
Look for Squirrel Probes in this site I just posted a new download link yesterday these work with Mach3 using a standard screen set .

[squirrel_41]

Just another note I never use a probe in the spindle chuck I always use it offset this eliminates any discrepancy in the probe ball and does not require the probe to spin true .

[GeorgeIoak]

I went to that thread to check out your routine but it says that the download link is broken.

[squirrel_41]

https://dl.orangedox.com/nVdNa3IFiTCchbpdIu
this is the link in my last post i just tested it
it's working.
Let me know if it does not work