Aluminum Cutting

[Brad Graves]

I am looking at buying a desktop Bot to cut thru 1/8" thick aluminum. I would like to know if anyone is doing this and if so what kind of spindle are you using.

[mikea@mts.net]

Hello


We have made simple molds with 1/2 alum using a spiral uplift bit wiht no problems. cuts well at various speeds and slower speeds.

Mike

[Brad Graves]

Hey Mike,

Are you using one of the Porter Cable or Makita routers? Or are you using the Colombo?

Thanks for you response,

Brad

[ssmith@skeeball.com]

I’m no expert but this is what I did with great results.

I had to machine cutouts in 1 ¾ sq. aluminum t-slot extrusion (like the 80-20 stuff).
This was for a prototype only. I did not refine my settings because we sent the production quantities out for machining.

I have a P.C. router on my bot. And used these settings:
3/8 spiral up carbide router bit
WD-40 to lubricate every other pass
0.05” per pass
Move speed of 0.15 X and Y 0.05 on the Z
10,000 rpm (slowest setting on the router)

[mikea@mts.net]

Brad

We are using the Porter Cable. I would still like to slow the rpm's down but with router won't work with the electronic speed controlls we use with our Makita Routers in our router boxes. But like I said it cut well at various speeds and feed rates.

Mike

[Brad Graves]

I appreciate everyones responses and help.

THANKS!

Brad