How do i use the Edge Finder?

[Japmaco (Markus)]

I bought the Edge Finder with my Nomad Pro.
As i thought it would make things a Little more easy to align etc.

But how do i use it? =)

[RichCournoyer (Richard Cournoyer)]

1. Can you slow the spindle to less then 1500 rpm?

2. https://youtu.be/5_qiPE5z7SE

[WillAdams (William Adams (Carbide 3D))]

Post discussing this here:

How to use Edge Finders

I’ll explain the process of using a “classic” rotating mechanical edge finder here; videos are below. Perhaps the biggest advantage of a “classic” rotating edge finder is the amazing accuracy and precision one can obtain at such a low cost. A high quality “classic” rotating edge finder can often be found for US$20 or less. Make sure you’ve got plenty of lighting so as to see the edge finder clearly. One will also need eye protection. A mirror is useful to see those hard to get at locations. A…

[Japmaco (Markus)]

I understand now,
So in small steps.

1. Install the Edge Finder in my 1/4" collet and tighten
2. Go in to JOG mode and jog to the EDGE of X axis of the metal u are gonna cut or the end of the table (depending on where u want the 0 to be) until the Edge Finder stops to wiggle. Then u are .2inches from the actual center. Lift up on the Z axis until free of obstable and go in 0.1" on the X axis to center on the actual 0. Do the same for the Y axis.
3. Drop the Z axis on thin paper on top of the metal being cut until the paper is barly touching the edge of the mill (friction) and zero it

Is that a correct interpretation?
Where do the most of the programs in g code start the 0? From the metal plats u are cutting of the threaded table? I know its a stupid question but.

[RichCournoyer (Richard Cournoyer)]

Close

1. Install the Edge Finder in my 1/4" collet and tighten (start the spindle at 2000 MAX rpm (Edge finders should run from 750 to 1500 rpm, but the Nomad has a 2000 rpm min, and I read from other uses that it works at this higher rpm.

2. … until the Edge Finder stops to wiggle. NO, go further until the edge finder slips off center (did you watch the videos?)

Your XYZ0 is where you have programed it to be. If you are using a vise, you always use the solid vise edge (the jaw that doesn’t move)