bandit controller retrofit
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25 Mar 2025 20:31 #324915
by Masiwood123
Replied by Masiwood123 on topic bandit controller retrofit
want to take a picture tomorrow of the entire controller and driver details, there are a total of 6 wires going to the motor, I have never seen such a motor before, it seems to me that there are no brushes, that it is some type of servo, the idea is to do a retrofit in case the drivers have an analog input via 7i77 or to insert new servo motors and 7i96s.
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25 Mar 2025 20:32 #324916
by Masiwood123
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25 Mar 2025 20:34 #324917
by Masiwood123
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thanks but my option is always Mesa
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25 Mar 2025 23:28 #324931
by langdons
Replied by langdons on topic bandit controller retrofit
Does jogging the axes work?
Like do the existing motors work?
Can you home each axis?
Does the location displayed on-screen correspond with the actual, physical location?
Like do the existing motors work?
Can you home each axis?
Does the location displayed on-screen correspond with the actual, physical location?
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25 Mar 2025 23:42 #324935
by langdons
Replied by langdons on topic bandit controller retrofit
Nice machine.
Old, but good and reasonably well-maintained (I've seen some really poorly maintained machines).
Old, but good and reasonably well-maintained (I've seen some really poorly maintained machines).
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25 Mar 2025 23:52 - 26 Mar 2025 13:45 #324937
by langdons
Replied by langdons on topic bandit controller retrofit
Looks like you have a good ol' gearbox to change the spindle speed.
Be sure to not set the spindle speed too high to avoid overloading the motor.
Big induction motors are very expensive.
You have to replace the spindle belt; it's very old and worn.
Plus it only costs like $9
Beware that, due to being made of steel and cast iron, the lathe is vulnerable to temperature fluctuations.
Keep it in a conditioned or at lease semi-conditioned space.
Be sure to not set the spindle speed too high to avoid overloading the motor.
Big induction motors are very expensive.
You have to replace the spindle belt; it's very old and worn.
Plus it only costs like $9
Beware that, due to being made of steel and cast iron, the lathe is vulnerable to temperature fluctuations.
Keep it in a conditioned or at lease semi-conditioned space.
Last edit: 26 Mar 2025 13:45 by langdons. Reason: Added new info.
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26 Mar 2025 13:47 #324963
by langdons
Replied by langdons on topic bandit controller retrofit
Also, inducution motors generally need to be relubricated every 10 years of normal service.
Because yours is a totally enclosed motor, you have to disassemble it to oil it.
Because yours is a totally enclosed motor, you have to disassemble it to oil it.

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26 Mar 2025 14:38 #324966
by Masiwood123
Replied by Masiwood123 on topic bandit controller retrofit
I can only do ``Jog``, nothing happens in MDI select, there are letter markings but I don't have instructions for programming certain steps, the machine has no home, only limit switches and measuring scales ttl, that's why I was interested if anyone knew what type of driver it is due to the possible retention of the existing motors if I do a retrofit.
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26 Mar 2025 15:18 #324971
by Masiwood123
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26 Mar 2025 15:21 #324972
by Masiwood123
the link i found
Replied by Masiwood123 on topic bandit controller retrofit
the link i found
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