Common Treadmill Motor Power Supply Mistakes When putting together DIY Power Supply MC60 SCR MC2100

12,494
0
Published 2022-12-15
There are lots of ways to make a treadmill motor variable power supply. You can use an SCR or you can use the treadmill motor control board, but if you put one together make sure you do it correctly. There are lots of little mistakes that people sometimes make. I put together this video to help you avoid said mistakes.

Affiliate links to items in this video:

MC60:

10K potentiometer amzn.to/3QAtiES

20 Amp circuit breaker amzn.to/3ufQDRh
OR
15 Amp circuit breaker amzn.to/3FgoQGP

Emergency stop switch amzn.to/43mgveT

3PDT direction switch amzn.to/3ZShNLG
OR
DPDT center of switch amzn.to/46hjbdM



MC2100:

PWM signal generator for the MC 2100 amzn.to/3z3ivu3
20 Amp circuit breaker amzn.to/3ufQDRh
OR
15 Amp circuit breaker amzn.to/3FgoQGP

Emergency stop switch amzn.to/43mgveT

3PDT direction switch amzn.to/3ZShNLG
OR
DPDT center of switch amzn.to/46hjbdM

Toroid Core for AC inductor/choke amzn.to/3QTk5Zs


Variable Transformer:

100 amp Bridge rectifier amzn.to/40DjWg6

Emergency stop switch amzn.to/43mgveT

3PDT direction switch amzn.to/3ZShNLG
OR
DPDT center of switch amzn.to/46hjbdM

Toroid Core for AC inductor/choke amzn.to/3QTk5Zs


SCR Voltage controller:

SCR voltage controller amzn.to/47vUify

100 amp Bridge rectifier amzn.to/40DjWg6

20 Amp circuit breaker amzn.to/3ufQDRh
OR
15 Amp circuit breaker amzn.to/3FgoQGP

Emergency stop switch amzn.to/43mgveT

3PDT direction switch amzn.to/3ZShNLG
OR
DPDT center of switch amzn.to/46hjbdM

Toroid Core for AC inductor/choke amzn.to/3QTk5Zs

10K potentiometer amzn.to/3QAtiES
20K potentiometer amzn.to/3Srib1a
100K potentiometer amzn.to/46anc3O
150K potentiometer amzn.to/3zxc96l


Inclosuers and inclosure parts:
8” X 6” X 4” hinged box amzn.to/3jPndaR
8” X 10” X 4” Power supply box amzn.to/3HEHeun
12” x 12” x 4” Large component box amzn.to/3Imerv6
7.9” x 4.7” x 2.95” Large plastic box amzn.to/3nQEylT
6.22” x 3.54” x 2.36” Medium plastic box (the one I put all the parts in) amzn.to/40JB9nn
Cable Gland amzn.to/3VZNrWb

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.

The choke in most of my videos is part number 130993. Instead of getting one new I would get a used one. A lot of treadmills come with a choke. Go to eBay and search “treadmill motor choke” BUT know that most people on eBay don’t know what they have and the word "transformer" will also appear in most listings. Problem is a choke and a transformer look almost identical so some listings are for transformers and some are fore chokes because the sellers think they are interchangeable. They are not. They would only be interchangeable if you modify a transformer to work as a choke. (see my DIY choke video) To tell the difference count the wires. A choke will only have 2, a transformer will have 3 or more. Please let me know if I can be of further assistance.

All Comments (21)
  • Daze, you’re definitely the treadmill motor controller guy! Congrats
  • Excellent video. I don't think that there's enough people stressing the safety side of all these diy projects. Thanks for sharing.
  • Thanks again, Daze. The mistake I made on my wood lathe installation was to remove the flywheel which is also the fan. You said in an earlier video this year that the motor will overheat without the fan and you are correct. It does overheat when drilling with larger Forstner bits or turning large bowls. Now I'll have to install a fan to the motor shaft. Thanks - Garson 👍👍
  • @rayg436
    another great video agreed all components should be grounded. I have been shocked by a dryer that someone wired wrong. I just plugged it in and the body was wired to a live wire .so yes ground is the first wire to be connected on any wiring.
  • Well, what you are to me is the "My girlfriend's favorite song for an intro" guy. She loves that Duran Duran song. Plays it all the time. Her niece was wearing a t-shirt that had "Stay Wild" printed on it when we visited once. That being said, I also love your channel for all the treadmill motor stuff. I have a pile of them, waiting to power some machines. Will be getting on that soon! Yours is by far the best channel I've seen in reference to using the most prevalent "perfectly good thrown away motors". Thanks for what you do here. Stay Wild!
  • Great video. I wonder if mounting the whole assembly verticaly so the heatsink is vertical will also help with airflow along the fins.
  • @DrumSmithRich
    Daze, if I’m using the thermal overload protection (blue wires from dc motor), should I still add a 15amp fuse on my AC power in? Thanks for the info from one Ford guy to another, I appreciate your videos!
  • Great video. I have a question. Not sure you can answer it but here we go. Do you have ant idea what size choke to use on a 2.5 HP treadmill motor using a SCR. What should the Henry and MA be ? I have junked 9 treadmills and not one of them had a choke on them. All had one or two transformers but no choke. Thank you.
  • @minskmade
    good video...flipping the psu is smart..going to be posting my treadmill motor driven drill press soon :P. what electric box is that?
  • I guess I missed the part about needing a transformer? Would be real useful to learn how to specifically wire up the 2100. Did you use a choke on the output side? Thanks > Bill
  • @JohnnieBravo1
    Hey Daze; a question was asked of me that I didn't technically know the answer to, but instinctively I "think" I know the answer to. That was, does the size of the choke matter?? For the 10-130 VDC treadmill motors, say 1.5 - 3.0 CHP motors, how do you know how to size the choke.
  • @gaetan_b_2611
    I would have liked to see one of your montages operate a treadmill.
  • @douggarson50
    Any reason why the enclosure can't be a wooden box? Would vent openings with filter cloth to keep out dust be a good idea (application is a drill press in a wood shop).
  • @jamest3618
    Have you ever used an MC1648DLS controller? I have one from a commercial treadmill I salvaged, but I can't find any diagrams or info about using it.
  • The control box, where can I find one or information on it,,,? Thanks,,!!!
  • @alexbat4313
    Daze, will all of these work with a 4hp tradmill motor?
  • @cynthiahood89
    We got a proform they had cut the wires we reconnected and there was a green wire which we believe is the ground wire. We connected it with a screw to the outside hole. But have no power. Any suggestions please?
  • @genetomblin2883
    Thermal management of electronics is complicated and often done wrong. Fan air cooling Works but degrades over time as dust and dirt plug things up. Natural convection cooling requires the largest heat sink. For this reason you don't see it used very often any more.
  • @tomnorton8218
    Hey! I just got my mc2100 and pwm setup. It works but to increase the rpm I have to make a lot of turns of the knob. Is there a way to change this?