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EBAY Steppers

Posted by conscripted 
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conscripted
EBAY Steppers
May 27, 2012 09:45AM
Hello all,
I'm in the process of pricing out a 3d printer. I've found some steppers on ebay for what I think is a good price. I've seen several postings like this or this. Will either of those motors work?

Thanks
Bill

Edited 1 time(s). Last edit at 05/27/2012 09:47AM by conscripted.
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gregted
Re: EBAY Steppers
May 27, 2012 10:00AM
Look very similar to mine and should be ok.

That price is good.

You will only need the 4 inner wires so cut off the 2 outer wires altogether when you connect your extension wires to your electronics.
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MaFraL
Re: EBAY Steppers
May 30, 2012 08:15PM
Those are definitely cheaper than new. Another user recommended SparkFun item ROB-10846. I bought them for my Prusa but haven't completely finished yet to say how well they work because I ended up leaving out some parts in my initial order and had to have one of the steppers replaced because it arrived with a bent arbor.
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Zimtower
Re: EBAY Steppers
June 14, 2012 02:20AM
Those steppers are too weak, you need at least twice the torque for the x/y/e motors.

[www.ebay.com]

I bought these and they solved all of my stepping issues.
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Scrachbuilder
Re: EBAY Steppers
July 01, 2012 01:44AM
I think I may have been caught with too small a motors for torque
and inertia. I am building with 8mm linear bearings so they may
be o'k.

Seeing most of the set-ups I think 1.4 - 2 amp motors are requitred
with NEMA17 frames about 40mm long.

I understand the driver boards are build for 2.5 amp max.
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dgs2001
Re: EBAY Steppers
July 01, 2012 05:20AM
I've just ordered some of these

[www.ebay.co.uk]

Hopefully they will be ok, although the 4.4 holding torque is not as high as the alltronics ones

dgs
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RegionX
Re: EBAY Steppers
July 03, 2012 04:13AM
dgs2001 Wrote:
-------------------------------------------------------
> I've just ordered some of these
>
> [www.ebay.co.uk]
> ue-stepper-motor-44Ncm-1-8degree-Reprap-CNC-roboti
> cs-/221042941117?pt=UK_BOI_Electrical_Components_S
> upplies_ET&var=&hash=item33772f9cbd
>
> Hopefully they will be ok, although the 4.4
> holding torque is not as high as the alltronics
> ones
>
> dgs

Think3dPrint3d is a very good supplier, if they are selling them then they will work fine.thumbs up
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jcabrer
Re: EBAY Steppers
July 05, 2012 10:56AM
Zimtower's comment is overereaching a bit. Tony is one of the sellers pointed to in the first post. I know him personally, and have used and tested all of the motors he tags with REPRAP. They are quiet, and strong. You won't likely find a better price that his.
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DavidS
Re: EBAY Steppers
July 08, 2012 03:03AM
According to the Prusa Mendel parts list the extruder stepper should be at least 40Ncm. The strongest motors in the first post are 33.5oz/in, which I make to be 24Ncm. Would this not be too weak for the extruder at least?
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nophead
Re: EBAY Steppers
July 08, 2012 06:10AM
Yes.

[www.hydraraptor.blogspot.com]
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