| Electronics > Repair |
| How to repair/replace very old Microstepping drivers in Torcam CNC |
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| Langdon:
I am almost certain that all 3 microstepping drivers are broken. Everything else works. The drivers must be at fault. What would you recommend as a replacement? The motors in the CNC machine are 4.6A DC stepper motors. They have 200 steps/rev. The power supply is 40VAC, 40VDC, or 120VAC If necessary, I can hook up a 24VDC or 12VDC power supply. |
| timeandfrequency:
Hello Langdon, As written above, I would suggest those : https://www.omc-stepperonline.com/digital-stepper-driver-2-4-7-2a-18-80vac-or-36-110vdc-for-nema-34-motor-dm860t You can hook them to the 40 VAC power supply. But maybe wait another day if someone else on the forum might make a better suggestion. |
| Langdon:
I am in Ontario, Canada. The seller must ship to me. I am not going to deal with any company that charges $50 extra to ship to Canada. What are your thoughts on these: https://www.ebay.ca/itm/203996840791 https://www.ebay.ca/itm/375578234876 |
| timeandfrequency:
--- Quote from: Langdon on October 29, 2024, 04:01:41 pm --- https://www.ebay.ca/itm/203996840791 https://www.ebay.ca/itm/375578234876 --- End quote --- The 'DM556' should do it too, just take care that the input voltage span is lower than for the 'DM860T' I suggested above, and it's DC only (18~48V DC power supply). Use small fans to blow on the heatsinks. |
| Langdon:
Do you think this driver will be poor quality? https://www.ebay.ca/itm/203996840791 Should I buy one first to test if it is cheap junk and then buy 2 more if the first is good? |
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