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CNC12 Lathe CAM, spindle speed not correct < css , resolved>
Posted: Fri Dec 27, 2024 2:48 pm
by Measurement10
Have specified 3500 RPM CSS in Lathe CAM but running the program spindle wont go beyond 2000 RPM. G-code specifies M96 S4000 M3. I have an encoder and its working correctly, max spindle speed set to 5000 rpm in wizard. I can manually set spindle to 5000 RPM no problem. What could be happening here?
Re: CNC12 Lathe CAM, spindle speed not correct
Posted: Fri Dec 27, 2024 2:56 pm
by suntravel
max 2000rpm ist default for Intercon
You can change this in the Intercon setup page
I bet you have G50 S2000 in the g code
Uwe
Re: CNC12 Lathe CAM, spindle speed not correct
Posted: Fri Dec 27, 2024 3:21 pm
by Measurement10
That did it. Thanks Uwe, your replies are always perfect.
Re: CNC12 Lathe CAM, spindle speed not correct
Posted: Fri Dec 27, 2024 3:54 pm
by suntravel
G96 S1500.0 M3
This is 1500 m/min surface speed = 16464.3 rpm at 29mm diameter
G97 S1500 = 1500 rpm
Try G96 S150, that would be 1646 rpm at 29mm, going up to the max spindle speed if the diameter gets smaller.
For turning with carbide G96 S90 up to S200 are typical values.
Uwe
Re: CNC12 Lathe CAM, spindle speed not correct
Posted: Fri Dec 27, 2024 3:58 pm
by Measurement10
Ok, this is my error. I was interpreting CAM's "CSS" value wrong. For some reason i thought it was RPM. It is in m/min. Explains everything.
Thanks again Uwe.