Small electric motors

[junksable]

I have probably at least 50#'s of small electric motors, mostly from printers and other eletronics. Since my pricing here is not so great on these, I was thinking of trying to put on Craigs List to try and sell, possibly advertise as motors for robotics etc. Any one had any luck with this, or possibly another avenue? I currently do not use Ebay and I do not think I want to try that route. Any other ideas would be appreciated. Thank you

[travistemple202020]

they go super fast on ebay but you could try clist or other auction site too

[TheRecycleGuy]

i tried ebay on those nothing sold

[eesakiwi]

I put all the tiny motors and transformers etc, into a large bucket and put it out on my porch. By then it weighs 30 - 40 kgs, about NZ$20 worth.

Then someone comes along and steals it.

I dunno who or when, but if someones willing to carry that bucket for that distance.
Then they were in a situation that $20 would make a big difference for them.

[Swampy]

Dumb questions here, but I've wondered about this also...lots of printers unfortunately. Are you talking about the motors from all printers (desktops, etc.) or just the big floor models? And if you remove the motors intact, how do you test them to know they work before selling / listing them?

[junksable]

Dumb questions here, but I've wondered about this also...lots of printers unfortunately. Are you talking about the motors from all printers (desktops, etc.) or just the big floor models? And if you remove the motors intact, how do you test them to know they work before selling / listing them?

I am talking about the ones from desk tops as well. Some are pretty small. I have no way of testing them, and never had a need to until my prices for motors started to drop. I have had them on Craig's List for 2 days now, without any luck. No hurt to keep them there for awhile and see what happens. I guess if no hits, I'll eventually sell them to the scrap yard.

[bcrepurposing]

pull them with leads on and tap them on a battery. they spin they are good.

start at 3v and go up by 3 until it spins. 6, 9, 12, 18, 20, 24, 36 are what I seen most. over juiceing a tiny bit dont hurt. they got tolerances +/-5 to 10% normally

[Copper Head]

Ultimately these days Electric motors are bringing .15 to .18 # so $8 and extra for shipping is an easy number to get on ebay
Id get some small flat rate boxes @ $6 - fill them , take pictures , figure your weight , sell em .

[Ecycle Atlanta]

if you have the time to remove them and are fairly certain they work, they should be an easy sell on CL or eBay. I have done it successfully both ways, mostly to guys doing small projects, some for robotics.

[eesakiwi]

A lot of those motors will be 'stepping motors'. Its pretty easy to see the difference between them though.
DC motors have two or three wires and often a capacator soldered across where the wires are soldered on the motor. Normally marked with their voltage too.

The stepper motors, when you turn the shaft they 'cog' each time the poles go past their magnets. Each 'cog' is a 'step' in the motor. These steps can be controlled by electronics. You can tell it to turn 130 turns and then go a extra 72 degrees and it will.
They also have 4 or more wires going to them. Or a attached PCB and electronics.

The bigger ones are usefull in robotics and other projects. They normally come off photocopiers and have the driver boards connected to them. The hole spacing for mounting the motors that are by themself is
often the same as the Ali extrusion thats molded into the centre of a FxP smart drive washing machine.
Meaning that there's Ali extrusion that's specially made for mounting these motors that can be brought 'off the shelf'.

I am using these stepper motors to drive the saddle and cross slide on a EMCO mini lathe, the smallest they make.

These stepper motors can be sold for this job, or making 3D printers or suchlike.

While you are at it, there's really nice shafting rod steel in printers.
This could be sold to the same home hobby engineers that would buy the stepper motors.

I have found that some small transformers have the 'stacked iron core' welded on them. (As opposed to the 'interlaced' sort)
A stack of the 'I' 's are great packing for under the lathe tool so you can put the tool tip on centre with the metal being machined.

[DakotaRog]

Nice to see you back eesakiwi!!