CNC Microstop

[Jaz]

We have assemblies with many rivets installed flush to the surface (+0,-.002). Currently we c'sink the holes manually with Microstop c'sinks and this works fine. Our experience c'sinking these holes on the CNC has been poor, +/-.001 depth is too close for button pushers. Probing or gauging each hole is impractical, the specific assembly I'm looking at right now has ~1700 holes.

Has anyone used anything like a Microstop on a CNC? I'm thinking like held in a spring loaded holder or something? Are there any tools out there built for this?

 

I think I might be able to build a spring loaded adapter or modify a tap holder, but I would really prefer to get something off the shelf.

 

Any help or suggestions are welcome.

[TheePres]

Jaz. Take a look at these engraving tools at 2LINC...I modified one to do what you are looking to do. BTW..1700 holes sounds so familiar.

[Jaz]

Looks like just what the Dr. ordered.

Thank you very much.

 

here's a link if anyone wants it: http://www.2linc.com/engraving.htm

[Craig-B]

Or I would use Command Tension & Compression Tap Holder

[Joe788]

http://www.mmsonline.com/articles/composites-machining-for-the-f-35

 

Looks like the tool they talk about in this story is for sale by the 3rd party.

[brian ripley]

If you look further on the 2linc site the have a spring loaded countersink for cnc machines. We are using 2 of these and they work good. If you are doing plastic you will have to go to the hardware store and buy a softer spring and we also made a wider pad for the contact surface. These will hurt your pocket a little but they work well. The base is 1 3/4 in dia. I wish they had a smaller version.

[GF8er]

Cogsdill makes a microlimit with overtravel built in.

 

http://www.cogsdill.com/products/deburring/micro-limit/

[gms1]

We use the cogsdill stuff all the time. We also use the original countersink maker for aircraft stuff Severance. http://severancetool.com/index2.html