Mainly just venting. Cutting about 800 3/8" holes through 5/8" plywood with .060" AL laminated to the face. Tried drilling, didn't work. Tried 3/8" center cutting plunge router bit, didn't work (left a slug that burned as it was pushed through the ply).

Settled on 1/4" upcut, spiraling into the material. Toolpathed a drilling routine, then find/replace the M3 commands with a CP so I could use the spiral feature.

So far it is working decent, but at the expense of about 2 hours per panel!!!

Customer was supposed to supply HPL with metal face, but they brought .060" solid aluminum sheets, Oh well.

Also, anyone have any experience cutting cement type Wonderboard??

Thanks for listening


Gabe