Now is the Hour....
Posted by
WDSmith
on 2003-05-04 16:15:41 UTC
OK, I have decided it is time to quit soaking up everybody else's experience and create some of my own. to that end, I am planning to add some CNC capability to an Atlas 12 x 54 lathe I am rebuilding.
I plan to leave the headstock end of the leadscrew alone and add a servo to the tailstock end driven by a timing belt. The standard Acme 5/8 inch leadscrew and halfnuts will be retained for the forseeable future (Like until I can buy a 60 inch ballscrew and nut on eBay for 20 bucks) but the crossfeed screw will be replaced with a 1:10 ballscrew which will be driven by a stepper on the back side.
I want to retain all manual capabilities while taking advantage of whatever CNC capabilities and accuracy I can manage with what I have on-hand. I don't need any elitist remarks about "forget using a an Acme leadscrew." I know the limitations of my hardware and am willing to accept them.
What I do need is help figuring out how to use what I have:
=== Model A6621-16F2-5-03
120Vac Input (3 phase), Current 30Amp / 6HP
No Power Supply
No Other Specs
Fairly detailed photos are at
http://www.smithsff.us/dropbox/cnc/index.htm . The parent images are in the 50kb to 90 kb range so be aware before you click. BTW: I believe the 3 phase input is a crock. I am not an exexikal jeanius but I don't see it and I do believe it does contain a power supply. I didn't pay much for this so even if it turns out to be salvage parts, I'm OK.
===Sanyo Denki Super-Driver
Type C-200-20 DC Servo Motor, 60 Volt - 6.8 Amps / 1000 RPM
===Amtek tape drive motor I inquired about in post # 53782.
My questions:
Does anybody have any information on the old Westamp Servo amp? I have turned up nothing in the archives on this model and nothing on the website of the company that bought Westamp. The only thing i have found is repair services who will send me a rebuilt unit WITH instructions for around $900.
If you don't have any direct information, do you have any good ideas on where to start figuring it out. I will eventually buy a Geko for three reasons: Currency. Afforability (future) and Support. but that is sometime in the future and I want wet feet now.
Between the two motors, would either offer real advantages over the other? I realize the Sanyo is larger but in my application, is that a practical consideration??
I appreciate any help... Thanks,
WDSmith
[Non-text portions of this message have been removed]
I plan to leave the headstock end of the leadscrew alone and add a servo to the tailstock end driven by a timing belt. The standard Acme 5/8 inch leadscrew and halfnuts will be retained for the forseeable future (Like until I can buy a 60 inch ballscrew and nut on eBay for 20 bucks) but the crossfeed screw will be replaced with a 1:10 ballscrew which will be driven by a stepper on the back side.
I want to retain all manual capabilities while taking advantage of whatever CNC capabilities and accuracy I can manage with what I have on-hand. I don't need any elitist remarks about "forget using a an Acme leadscrew." I know the limitations of my hardware and am willing to accept them.
What I do need is help figuring out how to use what I have:
=== Model A6621-16F2-5-03
120Vac Input (3 phase), Current 30Amp / 6HP
No Power Supply
No Other Specs
Fairly detailed photos are at
http://www.smithsff.us/dropbox/cnc/index.htm . The parent images are in the 50kb to 90 kb range so be aware before you click. BTW: I believe the 3 phase input is a crock. I am not an exexikal jeanius but I don't see it and I do believe it does contain a power supply. I didn't pay much for this so even if it turns out to be salvage parts, I'm OK.
===Sanyo Denki Super-Driver
Type C-200-20 DC Servo Motor, 60 Volt - 6.8 Amps / 1000 RPM
===Amtek tape drive motor I inquired about in post # 53782.
My questions:
Does anybody have any information on the old Westamp Servo amp? I have turned up nothing in the archives on this model and nothing on the website of the company that bought Westamp. The only thing i have found is repair services who will send me a rebuilt unit WITH instructions for around $900.
If you don't have any direct information, do you have any good ideas on where to start figuring it out. I will eventually buy a Geko for three reasons: Currency. Afforability (future) and Support. but that is sometime in the future and I want wet feet now.
Between the two motors, would either offer real advantages over the other? I realize the Sanyo is larger but in my application, is that a practical consideration??
I appreciate any help... Thanks,
WDSmith
[Non-text portions of this message have been removed]