speed reducer

[Constabulary]

what do you think how much torque you need? Better buy an electrical safe and out of the box servo motor. College Sewing sells 550W Servos for 99GBP + tax. At the end it´s cheaper than any tinkering + no electrical experiments and you have warranty. An additional speed reducer for sure is a good idea but depends on your purposes.

My 2 cents.

[Constabulary]

All servos work will with speed reducers. I have 2 JACK servos both bought from College Sewing and both run with a speed reducer. BUT Jack servo motors with needle positioning system do not work with speed reducers. At least the NPS does not work with a speed reducer but you can tun off the NPS. CS probably does not know speed reducers because they don´t have em for sale or have not setup a machine with a speed reducer ever. It does not matter if clutch or servo motors - they all can work with speed reducers. Check this forum you will find dozens of different SR setups.

https://www.google.de/search?q=speed+reducer+site:+leatehrworker.nert#q=speed+reducer+site:leatherworker.net

Edited November 9, 2016 by Constabulary

[TinkerTailor]

2 hours ago, Constabulary said:

what do you think how much torque you need?

My 2 cents.

I was looking for motors for a bench buffer/sander project and I found a westinghouse, is that good? Here it is:  http://vancouver.craigslist.ca/rch/hvo/5842965788.html

The advertisement said it was 3 phase and I was wondering if it will work? It may be a little overpowered (600hp) but hey, better safe than sorry. Now I have to find some kind of converter to get a motor rated for 4000 volts and 76 amps down to 120volt. And some helper springs so my volvo can carry it home. Its only 6900 lbs. Ill just keep it to second gear.

Do you think i will need a speed reducer to get more punch?

[billybopp]

That'll work just fine, Tinker.  At 1190 RPM you will need a reducer, but this motor has the huge advantage of not needing a table at all.  You just mount the head on the motor itself.

Bill

[gigi]

5 hours ago, TinkerTailor said:

Do you think i will need a speed reducer to get more punch?

Good luck finding a speed reducer for this motor!  

Now seriously: I want to make a DIY finishing/buffing/polishing/burnishing/sanding machine too using probably also a VFD since some wheels or brushes require a different speed than the others. 

[dikman]

TT, you'd probably blow every breaker in the neighbourhood when that monster was turned on!

Gigi, that sounds simple enough.

[Constabulary]

depends on the actual specs and "how similar" your motor is. Motors like this sometimes find use on patcher machines (at least on my side of the pond) but they just have 90Watts. You still need an accelerator pedal that is matching the specs of the actual motor. But I´m not an electric expert so someone else has to jump in here.

http://naehmaschinentechnik-forum.de/viewtopic.php?f=14&t=1183

See pictures

http://altenaehmaschine.de/Adler-30-1-9

Edited November 10, 2016 by Constabulary

[billybopp]

It would work if you can work out how to control it.

[dikman]

Any of them could work, I guess, but some would require considerable modification/fabrication to do the job. Forget 24v motors as sourcing a suitable power supply would be an issue.

At the end of the day a servo that's designed for the job and simply bolts in place is hard to beat.

[Constabulary]

A treadmill? Whats next - an electric lawnmower or an E-Bike? I absolutely agree with dikman. Tinkering is nice as long as it is much (much) cheaper and / or you get much more performance out of it but in general I´d (again) say an out the box servo + speed reducer is the best you can do. But thats entirely up to you. If you like tinkering start with making a speed reducer.

Edited November 11, 2016 by Constabulary