Does this sound normal?

**grantx** · 23-06-2021

I only need the three axis. xyz.

Why do you say closed loop is misleading?

Hypothetically if I did need to upgrade, what would be a suitable setup? Now I do realise that the quality of cnc equipment lies on a very broad spectrum of quality standards and that there are unlimited combinations available, making my question nonsensical to seasoned veterans here. However.....in my situation where I will be cutting exclusively wood (soft and hard), possibly a few hours a day, on a sturdy metal frame with 15mm ball screws attached - what would a proper setup look like?

4 x Nema23 closed loop. (2 for X, 1 for Y, 1 for Z)
AXBB-E controller with accompanying software.
2 x Power supply ( 1 for X and 1 for Y and Z)
Controllers (Do I need 1 for each motor drive?)

**dazp1976** · 23-06-2021

Originally Posted by grantx

I only need the three axis. xyz.

Why do you say closed loop is misleading?

Hypothetically if I did need to upgrade, what would be a suitable setup? Now I do realise that the quality of cnc equipment lies on a very broad spectrum of quality standards and that there are unlimited combinations available, making my question nonsensical to seasoned veterans here. However.....in my situation where I will be cutting exclusively wood (soft and hard), possibly a few hours a day, on a sturdy metal frame with 15mm ball screws attached - what would a proper setup look like?

4 x Nema23 closed loop. (2 for X, 1 for Y, 1 for Z)
AXBB-E controller with accompanying software.
2 x Power supply ( 1 for X and 1 for Y and Z)
Controllers (Do I need 1 for each motor drive?)

Ask JAZZCNC (Dean) about the Lichuan A86 drivers and 2102 motors he has if you're serious about closed loop.
One of the best options in the u.k. atm afaic.
You can hook those up directly to a 55vac toroidal power transformer for simplicity.
The AXBB-E has enough outputs for 4 axis, spindle and ancilliaries straight out the box (3+ slave in your case).
Initial outlay is a cost but..... you won't be constantly pratting about with a setup like this if you wire it correctly first time.

The documentation on the Lichuan is ok and I'm sure Dean will help you out.

**grantx** · 28-06-2021

Update on the resonance issues. David sent me replacement driver modules which I was initially very skeptical about however they have totally eliminated the problem. Ive run a profile which, prior to the change, was causing terrible vibration and noise but now runs totally smoothly. I can barely even hear the motors now.

I must say a huge thanks to Dean who was very supportive. He chatted with me over the phone and gave some excellent advice. I think Deans machines look of a very high spec and he obviously knows what he's talking about and as much as I would love to own one of his builds they are unfortunately a little beyond my budget at the moment.

A few have told me to send this cnc back but so far David has been very supportive and since my original complaint has been suitably resolved I don't have a valid reason to return it - nor would I want to. He has done an honest days job and I have what I paid for.