[Atomic_Sheep]

Hi guys, I'm interested in making a new CNC machine that is a bit better suited for my needs and has a flat bed. My Chinese one is all warped as I found out when I was making PCBs with an engraving endmill. Even a 9cm x 10cm PCB was so warped that I had to use various tricks to get the traces to turn out workable. It's fine for crude work and it's not like I'm going to throw it out, it does have uses, but I have realised that I would like something done a bit more 'right'. Fingers crossed it can be done DIY - assemble all the pieces, I won't be able to machine parts for it that would be accurate enough.

Anyway, I found a CNC router on youtube that looks really nice, but I'm wondering how good/bad it would be at working with aluminium which is what I hope to be able to work on it as well as all the other light stuff.

Sorry, looks like the youtube links didn't work, please search:

"2.2Kw Spindle on newly complete Z axis with new Y axis rails in place "
"My 3 Axis CNC Router base almost finished"
"My CNC Router progress update 2"

All videos are by Glen Lewis

Also, I plan on using some NEMA 24HS39-3008D steppers which I have already bought, but I was wondering how good/bad these would be for aluminium work? Here are the specs:

Model
24HS39-3008D

Rated Current(A)
4.24 (3.5A)

Phase Resistance(Ohm)
0.7

Phase Inductance(mH)
3

Holding Torque(N.cm)
566 oz-in (467 oz-in)

Rotor Inertia(g.cm2)
980