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131  Mach Discussion / General Mach Discussion / Re: Servo for lathe spindle ? on: September 30, 2014, 06:09:03 AM
You can try connecting the signals directly, but usually encoders output weak signals so a line drive would be preferable:

http://www.cnc4pc.com/Store/osc/product_info.php?products_id=337&osCsid=53062d4f014880b38fc29ac5affa980c

Dan
132  Mach Discussion / General Mach Discussion / Re: Servo for lathe spindle ? on: September 30, 2014, 03:47:46 AM
I didn't read all your posts from yesterday, so don't know how you arrived at the conclusion that it is the encoder outputs from the drives that are not functioning, but connecting the encoders directly to the CSMIO should work I think. You will need to use a line driver and supply 5V to the encoders.

Dan
133  Mach Discussion / General Mach Discussion / Re: Servo for lathe spindle ? on: September 29, 2014, 02:59:19 PM
Try reset to factory defaults first.

Dan
134  Mach Discussion / General Mach Discussion / Re: Servo for lathe spindle ? on: September 29, 2014, 02:01:44 PM
You can save the settings from the working drive to the PC and load them to the other drives.

Dan
135  Mach Discussion / General Mach Discussion / Re: Servo for lathe spindle ? on: September 28, 2014, 08:22:56 AM
Did you follow the Delta manual exactly? Did you set parameter P1-01 correctly? I believe it is something with the settings or the wiring of the servo drive.

Dan
136  Mach Discussion / General Mach Discussion / Re: Servo for lathe spindle ? on: September 28, 2014, 06:07:46 AM
Can you see the voltage going out of the CSMIO on the diagnostic page?

Dan
137  Mach Discussion / General Mach Discussion / Re: Servo for lathe spindle ? on: September 28, 2014, 04:20:20 AM
Please provide a link to the drive you're using.

Dan
138  Mach Discussion / General Mach Discussion / Re: Servo for lathe spindle ? on: September 28, 2014, 02:51:59 AM
What servo drives are you using? You need to set them to analogue input if you're using the CSMIO/IP-A.

Dan
139  Mach Discussion / General Mach Discussion / Re: Servo for lathe spindle ? on: September 13, 2014, 01:56:22 PM
I am using a USB SmoothStepper on the mill and the lathe in the video. The other lathe has the Ethernet SmoothStepper. If you're referring to the gcode in the video cutting the hex, it is a parametric Gcode I wrote.

Dan
140  Mach Discussion / General Mach Discussion / Re: Servo for lathe spindle ? on: September 13, 2014, 02:31:13 AM
I am using AC servos for driving the spindle on two lathes and a mill. All are timing belt driven. I am VERY happy with them, and if money is not an issue I would use AC servo on any machine I shall ever do. I can do rigid tapping on all the machines, and some other things. Check out this video, where I am cutting a hex on my wee lathe:
http://youtu.be/DajrTlI8IWA

Also, I should note that as far as I know the CSMIO supports rigid tapping with any spindle motor provided it has an encoder.

Delta servos are excellent. Properly tuned you should not experience resonance. However, if you belt is too long you may need to use some tension wheels along the way. AC servos have full torque starting from zero rpm. You can run it in the rpm range you ask. Your original motor 1400W @5000rpm provides a nominal torque of about 2.6Nm. If this satisfies your needs, then this is the torque I would go for when picking a new motor.

Dan
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