Aluminum profile and alu plate 1500mm x 600mm x 150mm working area, first cnc.

[Boyan Silyavski]

Good machine will have nice balance of speed and Acceleration. IME for Medium machine size which this is, 10,000mm/min and 1500mm/s/s is all thats required.

I think also that one should be very happy he found this forum and all information here. I will give a reward if sb finds me commercial machine that is not servo driven that could actually achieve that, speaking about cheap Chinese knockoffs and other ebay style machines.


Actually for intricate carvings on aluminum i lower the acceleration to 1000-1500 for better results. Its difficult to have all in one. Its not a big deal, just change one number in the controller. For wood i could push it even higher than that 3000 but not a real need.

[JAZZCNC]

I will give a reward if sb finds me commercial machine that is not servo driven that could actually achieve that, speaking about cheap Chinese knockoffs and other ebay style machines.

Not quite sure what your saying here Boyan.? . . . . Are you trying to say this isn't achievable with steppers.? Because if so then your very wrong.!
Just about every machine I build will or should say is designed to achieve these speeds or very close to them. Some Smaller machines will achieve well in excess of 10mtr/min and 1500mm/s/s.
Don't actually run them or tune them at those speeds for reliabilty reasons but they will do it if required.

I find above 2000/s/s gives negative affect to machine as it's far too jerky on short moves leading to poorer surface finishes.

[Boyan Silyavski]

Not quite sure what your saying here Boyan.? . . . . Are you trying to say this isn't achievable with steppers.? Because if so then your very wrong.!

I am saying you are our hero and i am happy that i found this forum and we learned to build machines that are superb for the money and better than crappy commercial ones where usually they have some major flaw in design.

[Clive S]

I am saying you are our hero and i am happy that i found this forum and we learned to build machines that are superb for the money and better than crappy commercial ones where usually they have some major flaw in design.

creep

[JAZZCNC]

I am saying you are our hero and i am happy that i found this forum and we learned to build machines that are superb for the money and better than crappy commercial ones where usually they have some major flaw in design.

Ah ah now your just blowing smoke up my jacksy.! . . . . . I understand.