Hi All,
Since my CNC is running… i found myself thinking that… humm… i build that CNC to make robot parts… !!! (has forgot that)
Ok… but what about a BIG Hexapod…!
Does anybody ever did something with StepMotors as driver for robot…?
Is there anything else for big Hexapod…?
Thanks… 
My first robot was driven with SS-50 stepper motors (NEMA #43).
Problem with using stepper motors is that normally the power to weight ratio is not that great. Easy to move accurately by counting the steps, but needs more battery power!
Alan KM6VV
Thanks Alan…
Anyone have experience with big Hexa… ?
I haven’t. How big are you talking about?
Alan KM6VV
Not that big…
Remember the bigger Hexapod of Micromagic ?
Something like that … or bigger…
Can i cut 1/4" aluminum on my CNC…?
Micromagic is not really any bigger! Bigger feet?
1/8" aluminum is fine for a 'bot that size. Yes, I’d think you should be able to cut it. With CNC, you can just take smaller cuts, and repeat them! .020" (or lighter) a cut will take several passes, but who cares!
Alan KM6VV
The 1/8" or 3/16" endmills should work for you. I avoid cheap imports, and you really don’t need any coatings. A little can of “aluminum tapping liquid” helps to make clean cuts, that; and keeping the chips cleared out.
the radius of the cutter limits how small a radius you can cut. And the radius of the tool should actually be slightly smaller then that of the curve you’re cutting to keep it from “grabbing” in the corner.
Alan KM6VV
