I've been following along, because I want to use a treadmill motor on my mini lathe, eventually. I am considering using a countershaft to get the gearing for low end torque. I do wonder how constant torque DC motor controllers though.
I always recommend gearing it to maximize torque BUT one really nice thing about DC motors is torque is constant at 99% of the RPM range. At the very lowest speeds the torque does drop as the resistance of the coil inside the motor takes a certain voltage to overcome which reduces over all amp flow and that has a direct result of reduced torque. But once you get past that very initial low spot torque becomes constant regardless of RPM.
anything above the first 5% or so will provide constant torque out of the motor. I tell people to max torque whenever you can. If your motor is max RPM 4500 and the max output speed is 1500 gear it at 3:1. Unless there is a target max or min output RPM always gear it as low as you can with in in the working RPM range.
At the time I went for easy. I will likely change it when I redo the power supply and go to a two potentiometer system with fine and course speed control.
That is an option, and lots of done it but it is not my first choice. There are two categories of treadmill power supply: hackable and non hackable. the hackable ones like the MC60, MC2100 and a few others are not as robust IMHO as an SCR. They do not stand up to the riggers of the shop as well. In fact I put an MC2100 on my band saw and fried it by sticking the blade. The non hackable ones are ofter way better power supplies BUT the only way to run them is with the treadmill control panel. This can create size challenges and you also must deal with treadmill feature like soft start and the like. For this reason my personal choice is to build my own power supply that I know is up for the challenge and is customizable for my application.
I don't know. I get them by scrapping treadmills so I don't look at make or model numbers I just look at specs and pick the better ones from my pile of parts.
It looks like your fan maybe pushing dust into the motor. If so, I put an electric fan with a filter on the other side. I didn’t want dust to get into my motor.
You are the treadmill master. Tried other controllers but just use the treadmill boards and slides. To this day I haven’t had a problem. Bound the drill press a few times but everything still working. Put a monster on my drill press and made a 2x72 belt grinder. Fun stuff.
If you weren't the treadmill motor guy before this, you are now. Most useful thanks.
I have been crowned the treadmill guy for a while now. 😂🤣😂
I've been following along, because I want to use a treadmill motor on my mini lathe, eventually. I am considering using a countershaft to get the gearing for low end torque. I do wonder how constant torque DC motor controllers though.
I always recommend gearing it to maximize torque BUT one really nice thing about DC motors is torque is constant at 99% of the RPM range. At the very lowest speeds the torque does drop as the resistance of the coil inside the motor takes a certain voltage to overcome which reduces over all amp flow and that has a direct result of reduced torque. But once you get past that very initial low spot torque becomes constant regardless of RPM.
Thanks. So if I gear it so that 25% motor speed is my minimum spindle speed I should get fairly constant torque?
anything above the first 5% or so will provide constant torque out of the motor. I tell people to max torque whenever you can. If your motor is max RPM 4500 and the max output speed is 1500 gear it at 3:1. Unless there is a target max or min output RPM always gear it as low as you can with in in the working RPM range.
Another excellent video from the master.
All hail Dazecars.
Thank you kindly
This video came out just in time. I'm catching up on Dazes good videos.
Welcome back!
Thanks for sharing your experience
Thanks for watching!
Enjoyed the video. Thanks.
My pleasure!
Such a wonderful video :) A pure pleasure to watch! :)
Glad you enjoyed it!
Nice job.
Thanks!
Nice upgrade.
Why don't you run your pot to the front with your power switch?
At the time I went for easy. I will likely change it when I redo the power supply and go to a two potentiometer system with fine and course speed control.
Is the 1/4 round motor mount a treadmill part or can we get it from some where else?
Very informative as always, thanks.
Came with the motor in the treadmill
Where’d you get that slick aluminum Mount? Cast it yourself?
Came inside the treadmill that that motor was in.
Why not use the power supply and speed control from the donor treadmill?
That is an option, and lots of done it but it is not my first choice. There are two categories of treadmill power supply: hackable and non hackable. the hackable ones like the MC60, MC2100 and a few others are not as robust IMHO as an SCR. They do not stand up to the riggers of the shop as well. In fact I put an MC2100 on my band saw and fried it by sticking the blade. The non hackable ones are ofter way better power supplies BUT the only way to run them is with the treadmill control panel. This can create size challenges and you also must deal with treadmill feature like soft start and the like. For this reason my personal choice is to build my own power supply that I know is up for the challenge and is customizable for my application.
👍👍😎👍👍
👌
That’s a nice platform you made for the motor. Where did you get that?
came with the motor in the treadmill
Where can I find the slotted/adjustable cast aluminum motor base you show in the video?
Inside a treadmill as It came with the motor.
Hi Daze. What treadmill motor are you using here? It looks like a quality motor.
Paul
I don't know. I get them by scrapping treadmills so I don't look at make or model numbers I just look at specs and pick the better ones from my pile of parts.
It looks like your fan maybe pushing dust into the motor. If so, I put an electric fan with a filter on the other side. I didn’t want dust to get into my motor.
good point. less of an issue when cutting metal because the kerf is so much heavier it just drops.
You are the treadmill master. Tried other controllers but just use the treadmill boards and slides. To this day I haven’t had a problem. Bound the drill press a few times but everything still working. Put a monster on my drill press and made a 2x72 belt grinder. Fun stuff.
Treadmill control panel is an option, I just don't car for the treadmill feature they come with
Parts list? Links???
Of course, here you go: th-cam.com/video/NUOCo01qARE/w-d-xo.htmlsi=WzsFgb6z5Z1JEIJk
@@dazecars Thank you!!!
my pleasure