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thickness is 3/8 there is a lots of cutting and 3/8 holes drilling.
Anything is doable. Doesn't make it right.
You can do it with a proper bit. I found that 12K RPM is max, and no more than 0.125 depth of cut. Onsrud has a 1/4 bit for this.
I'd be more worried about the chips. You will still be finding them a year from now.
now, for such project who will be cutting it, only cabinet people will have such machine with vacuum, other places ( signs or welders will be having another type of cnc )
also under which category billing will be under, I mean charge per project or cnc hourly including drawing time??
With aluminum you need to think about tip speed. google surface speed per minute.
I found that anything over 12K RPM with a 1/4 bit will cause re-welding of the chips. With a 3/8 bit the RPM will need to be lower.
The hardness of the material will make a major difference 6061 is hard cuts better, numbers under 5k are more soft some for bending and forming,, these are gonna be prone to melt.. I have and do Alu work with my cnc for Specific jobs yet if i had 24 sheets of 3/8 i may look for a local company with a waterjet and outsource, we have one locally that cuts large gaskets for plants and they are more than willing to use the machine in downtime.
I wouldn't do it without a misting coolant attachment. The misting attachment puts on a very fine atomized flow. The bit gets too hot and you will be welding aluminum to the bit without it. Personally, I wouldn't run a job that big in a woodworking shop. Your shop and dust collector will be a mess. You'll find aluminum cheap 3 years from now. I'd send the job to a water jet cutter and add a profit for handling. No fuss, no muss in your shop.