New member from Trinidad

[njhussey]

OK, frame looks not a million miles away, I'd make sure that the top rail has a thick wall otherwise it'll resonate with high frequency vibrations from the spindle. Bed looks like it could do with a bit more bracing.

Electrics, don't buy a "kit" of parts from one seller as they're always compromised in at least one area. If you're going to use Nema 34 motors (Z axis won't need it unless you're planning a monster?!!) then they need at least 100V to make them perform, best to use a 230V driver to get the best performance. If you're determined to use lower power drivers then use ones that can take 80V and build your own power supply to get the best performance.

Ballscrews, for wood you'll need speed so I'd use 1610 ballscrews on your X & Y axis and 1605 on your Z only. But at this length you'll need rotating ballnuts on a fixed (clamped both ends) 1610 ballscrew. Otherwise you'll need to go up to 20mm ballscrews and possibly 25mm, couldn't say which without doing the calcs for speed etc.

Couplings, use belts, this enables you to swap pulleys to increase/decrease the speed/resolution and more importantly it stops resonance being transmitted to the stepper motors.

Spindle, you can't got wrong with a 2.2kW water cooled spindle with inverter, the type you get from eBay....I've got one and they're great!

Other electronics will be things like relays and other electronic components (fuses, din terminals etc. etc.) to build your control panel, limit switches what controller are you thinking of?

[Trini]

For the frame I know there is a lot more to be done on it. I understand of what you said about the thicker top rails and I will make a note of that.

As I said before am really new to all of it and I was under the impression that all motors will be the same to have easier setup. But if that is not the case I would be glad to go with something smaller for the Z axis. When its comes to the drivers and power supply I rather buy these with the advice I get from you all. It will be a bit more money but will be faster to have the build started up early next year.

With the ball screw, yes I do want speed, and I will put those you suggested in my list of stuff I will need. But when it comes to the 20mm and 25mm ball screws I don't know how to cal such.

The belt I was more thinking of that but I hit a stop when assembling and tension of such came into play. I don't know how to design that section of it.

I will also put that spindle into my list. When that time comes for me to buy anything I will post up my list to make sure I have everything in order.

When you say other electronics, I did not dig into it due to the fact that, I taught when I buy a kit I would attained all of this. But as you mentioned, there always compromised in at least one area. So I will need some help with that if you all don't mind. When you say the controller, do you mean the breakout board?

[Trini]

good day all

Its been a while since i haven't posted anything. After reading a lot more threads i realized i was getting ahead of myself. I have worked on the design a little bit see pics. Also i have decided to put a 4th axis. But this is something i will need help in applying it to my current design. I don't know how to upload my sketch-up to the site. Have a look and tell me what you all think.

[mekanik]

If @ all possible ie budget wise i would change your linear rail system to Hiwin or similar profile. X axis top rail put another two pieces (each side) between frame to brace. Z axis it is best practice to use the rails on the front plate to provide additional support.
regards
Mike