Cutter flute lenght for Aluminum

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criznach
Posts: 220
Joined: Sat Dec 14, 2013 5:28 pm
Location: Great Falls, Montana, USA

Re: Cutter flute lenght for Aluminum

Post by criznach » Mon Mar 10, 2014 6:21 am

I think I'll order a longer end mill. Either I wasn't looking hard enough, or they weren't in stock when I bought the shorter one. I definitely see some 1/2" and 3/4" long flute options now. And I realized I do have a few of the inventables single flute bits. They worked for me on my other aluminum experiments, but man the coated aluminum specific bit sure did cut nicely! I think I'll hold out for the real deal.

Thanks everyone for the fixturing ideas. That's been one really fun aspect of learning all this stuff.

danimal
Posts: 332
Joined: Wed Mar 13, 2013 5:53 pm
Location: Colorado

Re: Cutter flute lenght for Aluminum

Post by danimal » Mon Mar 10, 2014 7:14 am

The aluminum specific bits do a great job. They just cost a little more, and the two that I have owned one snapped and the other got all gummed up when I was still figuring out the whole cooling thing. The last few parts I have built I just used the stock ones and they held up just fine.
Shapeoko # 1458

RT0701C Spindle || dual y motor || x axis nema23 with custom carriage 1000mm length || z axis nema23 linear rail upgrade with 1/2-10 ACME

Brian
Posts: 78
Joined: Sat Jan 25, 2014 8:42 pm
Location: Saint Louis

Re: Cutter flute lenght for Aluminum

Post by Brian » Mon Mar 10, 2014 12:06 pm

The air hose should keep things from getting gummed up. I don't like manual applications of coolant and they can be inconsistent and provide thermal shock to the tool which weakens it. Check out little machine shop as they sell a small simple mist coolant setup ($35 IIRC) that you can run as an air blast or drop the suction hose into a container of coolant for mist cooling.
Brian
Shapeoko 2 #I have no idea
HF cutout tool, 72oz nema 17 steppers, TB6600 stepper drivers, Mach3 control

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