Luthier CNC

[Lee Roberts]

I can even push the gantry and the Y ball screw spins accordingly. Unlike Lee, I simply cannot do this with one finger, need both arms and a sure footing!

I love the idea that Lee can move his Z-axis side to side with one finger, but that seems impossible to me on my machine - even disconnecting the ball screws and one hi-win rail (i.e. moving on just a single rail) I cannot get this performance with the rails I have!]

Just to clarify mate, I can only push my Z axis across the X (gantry) left to right with hardly any resistance, watching your video of you moving the gantry up and down the Y axis (bed), I would say we are very close in terms of effort required to make it move and the screw to spin.

You should note I'm using supported round rail, I thought I mentioned that in my other post, if I didn't sorry about that. Your rails are far superior to the ones I've used on this machine, overall I think your now on to a winner and agree you should move onto the next parts.

What pitch screws have you used on your longer axis's ? I've used 1610 ball screws on both X and Y, I think that may also be why its a bit easier for me to make things move. The rails on this machine will be making the most difference.

Well done, keep going looking forward to seeing you push the Start button

[bluesking]

What pitch screws have you used on your longer axis's ? I've used 1610 ball screws on both X and Y, I think that may also be why its a bit easier for me to make things move. The rails on this machine will be making the most difference.

Nice one Lee,
I'm using 1605 throughout and various gear ratios. As I'm using servos my main goal is to slow everything down enough rather than to speed it up like most stepper guys are doing.

Between that and the round rails you are using I'm feeling confident that I've managed to squeeze out all the performance I'm likely to get from my machine. Thanks again, you've given me really helpful advice about what I am aiming for and now I can move on with confidence, its a good feeling!

I'll mainly be focusing on the electronics and software from now on.