My Machine

[michael]

Your welcome Tom,

Not sure as my machine is properly built... Its better than something made out of old drawers and bits of old pine! but its not perfect, however i can advise you on what not to do no problem.

Seriously, i build large CNC machines (up to 6m x 30m, yes meters) for a living so i'm sure I can point you in the correct direction mate.

Thanks Hilton steve for your comments, you seem a nice bloke your self!


Michael

[John S]

Michael,
How do they drive the 30 meter axis ?
The reason I ask is I was involved with largish laser some years ago, 3 meter x 2 meter 3Kw up to 5Kw.

When they moved onto higher speed lasers, Bystronic's , the dropped the ball screws in favour of precision rack and pinion because the screws whipped at speed.
The rack and pinion was still able to guarantee 0.02mm on position.

John s.

[michael]

Michael,
How do they drive the 30 meter axis ?
The reason I ask is I was involved with largish laser some years ago, 3 meter x 2 meter 3Kw up to 5Kw.

When they moved onto higher speed lasers, Bystronic's , the dropped the ball screws in favour of precision rack and pinion because the screws whipped at speed.
The rack and pinion was still able to guarantee 0.02mm on position.

John s.

Rack and Pinion by Gudel John, Pretty much the only option for axis of that length (and mass). Also easy to extend as the ganrty runs on huge precision rails fastened to the floor.

Michael.

[Tom]

something made out of old drawers and bits of old pine!

You've seen my build thread then! ;)

Lee and John, thanks for the info - i'm going to Michael's later in the week to hear what a trend sounds like. I'm going to make my decision based on that. I've got my grandad's words running through my head - buy on price, buy twice. Could get expensive...

[John S]

If you want to then pop round to see what a Kress sounds like you are welcome to pop in.

John S.

[michael]

You've seen my build thread then! ;)

Lee and John, thanks for the info - i'm going to Michael's later in the week to hear what a trend sounds like. I'm going to make my decision based on that. I've got my grandad's words running through my head - buy on price, buy twice. Could get expensive...

Yeah i have seen your thread, Sometimes I should think before i type .
seriously I was impressed with your build so far.

Michael.