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These right-angle motors with lead screws are used to adjust the seats in cars. That there are so many of these being sold on the surplus market means to me that they must have been replaced by

Here photo my one of my portable DRO'S This 5" [125mm] it clamps to bed and a mag base on the carriage using a ?" aluminum Bar. Works great for snap rings. Dave

Speaking of that motor from the HSM article - I got an email from www.mpja.com and they are selling that same motor for $10.95 with $6.95 flat rate shipping and they made a brass flange nut for the

The high speed 3 phase motors I first in early 2000's could sooner for model . They could build a very light weight motors turning at upto 20,000 rpm's. Now we see as a brushless motors turn at 4,000

It interesting thd different ways I have seen for low speeds First on AC motors lots of poles you charge the poles for different speeds but very costly motors. Then was just was belts and or gears.

Yes - it's probably geared down quite a bit for that application, so power is not as important there. ralphie

That controller is for a automotive seat motor in the other link . animal

Mike - That controller won't put out that much power, it's only a 20A surge. If it would put out 18A continuously with a 12 VDC motor, that's only 216 watts, not even 1/3 hp. Even at 24 VDC, it's less

I have purchased from them in the past & have been happy with each purchase . Shipping seemed reasonable & fast . I have had the motor & controller mentioned earlier for several years just waiting for

MPJA is sort of an interesting outfit worth keeping in mind.? They cover a LOT of ground including multiple pages of advertising in a Ham Radio magazine.? All the way to even selling a talking

Someone mentioned the car seat motors , these folks have them on sale & also have a controller on sale too https://www.mpja.com/02-08-24.asp?r=417242&s=2 https://www.mpja.com/02-08-24.asp?r=417242&s=6

I believe that with PWM nothing happens till 15% duty cycle & limits out at 85% duty cycle . That's in print somewhere out in internet land . animal

Note that the potentiometer is operated at low volts BUT the electronics may now be isolated from line power, intended to be enclosed and therefore from us. Always take care in this regard, never

Looks great You till you work in wood. Dave

Yes ads pay for site. Some where I had details on cutting a variable pitch thread. The used a South Bend Lathe 9A for camera lens. Hopping that makes to YouTube. You may fine up to 4 TPI [ 6mm]. Most

Yes, far too many of them.? I think I was a little overly proud of the project.? :-) https://projects.foxharp.net/bandsaw/ paul

Hi Lone tree. I cut my thread with a normal bit. The item was an adaptor to join additional lenses to a Canon G2 digital camera. It was an internal thread, 40mm dia, 0.75mm pitch, both ends ! Worked

Don' think that will be cut with a normal threading bit.? ?(Yes, I endured the insufferable youtube ad to see this)? ?8^) -- Lone Tree, Colorado? ?USA

I haven't tried using a treadmill motor controller and cannot be specific but hope this is of some help. Lets start with some calculations from your motor DC specs: Power = 120 volt x 21 A = 2,520

I was thinking something like that, or a powered tailstock. The treadmill include motors look exactly the same as those seat ones, just a bit beefier. Tony Sent: Thursday, 8 February 2024 9:51 AM To: