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Post by deweycheatem on Dec 20, 2018 22:20:49 GMT
About 6 months ago, my team tried to mill some aluminum. We did not have any success. We broke 3 bits and put a large hole into our bed. It wasn't as easy as wood, nor did we expect it to be.
Fast forward to today. We've added a FogBuster Mister with a 8 gallon tank. We've practiced a lot more with metal. We've removed the laptop and now run the whole thing through another Rasp PI w/ a 7" display. I THINK we're ready to try aluminum again. We are still using the Dewalt router.
After lots of reading, I believe it sounds like most that have had success with aluminum have the router set to 1 or 2, run about 30 ips, at a cut depth of 0.1in? I'm looking to predominantly use a 1/4" endmill with 1 flute.
Thanks in advance for your help.
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Post by Derek the Admin on Dec 21, 2018 2:29:00 GMT
I assume you meant IPM instead of IPS.
What machine are you using?
A 0.1” depth is probably too deep unless you are running adaptive clearing. Slot cutting is actually pretty tough on a machine. Slot cutting at 0.1” will be too much.
Your chip load is going to be too high too.
Have you looked at the calculator at MillRightCNC.info
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Post by deweycheatem on Dec 23, 2018 14:11:25 GMT
We have a CarveKing.
I have used the calculator. I just assumed it was too conservative. With 1/4 but, 1 flute, normal, and 16000rpm (1 on router), it suggests 17IPM with a 0.017 in stepdown.
Just seems pretty, well slow.
The thing I don't like about the calculator is I have no idea if what I'm entering makes sense. I've read I shouldn't use a 4 flute on aluminum, but the calculator lets me. I've have problems with the router at full power, but again, the calculator doesn't flag me not to do this.
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rcferguson
Full Member
Posts: 182
Machine: Carve King
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Post by rcferguson on Dec 26, 2018 19:11:05 GMT
I assume you meant IPM instead of IPS. What machine are you using? A 0.1” depth is probably too deep unless you are running adaptive clearing. Slot cutting is actually pretty tough on a machine. Slot cutting at 0.1” will be too much. Your chip load is going to be too high too. Have you looked at the calculator at MillRightCNC.info I notice the feedrate calculator only shows the last three digits of the spindle speed (in Firefox). Changing the zoom doesn't alter it. Any way to get all 5 digits? I also have the DWP611... looks like the slowest speed is 16000 RPM. Would it be better to replace this router with a spindle that can go lower? Don't mean to hijack the thread, but looks like it is relevant.
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Post by linkreincarnate on Dec 26, 2018 20:32:24 GMT
I notice the feedrate calculator only shows the last three digits of the spindle speed (in Firefox). Changing the zoom doesn't alter it. Any way to get all 5 digits? I also have the DWP611... looks like the slowest speed is 16000 RPM. Would it be better to replace this router with a spindle that can go lower? Don't mean to hijack the thread, but looks like it is relevant.
Try chrome. It works perfect for me on there. |
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