Hi all, I'm just planning my first Prusa Mendel build with a few friends and just after a bit of advice on NEMA 17 stepper motors! Now we've seen that thingfarm.org sell these [thingfarm.org] for £69.60 and was wondering if these [www.ebay.co.uk] would work instead, as obviously a hell of a lot cheaper and covers the holding torque approx. 49Ncm? Any advice/help or links to other sellers would be greatly appreciated! Simon https://reprap.org/forum/read.php?1,97309,97309#msg-97309 Thu, 12 Mar 2026 10:33:45 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,97309,217040#msg-217040 https://reprap.org/forum/read.php?1,97309,217040#msg-217040 www.zappautomation.co.uk] would be my first choice.]]> misan General Mon, 10 Jun 2013 07:26:53 -0400 https://reprap.org/forum/read.php?1,97309,217037#msg-217037 https://reprap.org/forum/read.php?1,97309,217037#msg-217037 www.zappautomation.co.uk]

there are far to many to chose from..nophead..which one shall i got for?

cheers]]> aranciam General Mon, 10 Jun 2013 07:09:22 -0400 https://reprap.org/forum/read.php?1,97309,98089#msg-98089 https://reprap.org/forum/read.php?1,97309,98089#msg-98089 SY42STH471684A's from Zapp and they're really good. I especially like the extra long wires, made wiring everything up so much easier!]]> richardw347 General Sun, 18 Sep 2011 14:46:10 -0400 https://reprap.org/forum/read.php?1,97309,97667#msg-97667 https://reprap.org/forum/read.php?1,97309,97667#msg-97667 nophead General Wed, 14 Sep 2011 07:54:16 -0400 https://reprap.org/forum/read.php?1,97309,97656#msg-97656 https://reprap.org/forum/read.php?1,97309,97656#msg-97656 www.wantmotor.com] - maybe it would be a good alternative for those not in the UK?]]> Lenbok General Wed, 14 Sep 2011 03:52:08 -0400 https://reprap.org/forum/read.php?1,97309,97649#msg-97649 https://reprap.org/forum/read.php?1,97309,97649#msg-97649
The polou/stepstick is a true current limiting stepper driver so the motor specs when it comes to current/voltage are not relevant. The polou drives the motor at a much higher voltage, 12V or 24V probably depending on your design and since the motor is rated for 3.1V this means it only needs a fraction of the amperage for the same holding torque. 3.1V and 2.3A is what you can safely just connect to the leads and let sit there safely, not how the motor is actually used in practice.

John]]> John Meacham General Tue, 13 Sep 2011 22:22:55 -0400 https://reprap.org/forum/read.php?1,97309,97635#msg-97635 https://reprap.org/forum/read.php?1,97309,97635#msg-97635 Probably doesn't matter, anyway. (?)]]> Lanthan General Tue, 13 Sep 2011 18:05:03 -0400 https://reprap.org/forum/read.php?1,97309,97445#msg-97445 https://reprap.org/forum/read.php?1,97309,97445#msg-97445 nophead General Mon, 12 Sep 2011 04:02:07 -0400 https://reprap.org/forum/read.php?1,97309,97443#msg-97443 https://reprap.org/forum/read.php?1,97309,97443#msg-97443 www.zappautomation.co.uk]

@nophead do these motors also hit the StepStick sweetspot?]]> devijvers General Mon, 12 Sep 2011 03:02:46 -0400 https://reprap.org/forum/read.php?1,97309,97405#msg-97405 https://reprap.org/forum/read.php?1,97309,97405#msg-97405 misan General Sun, 11 Sep 2011 13:16:51 -0400 https://reprap.org/forum/read.php?1,97309,97404#msg-97404 https://reprap.org/forum/read.php?1,97309,97404#msg-97404 indieflow General Sun, 11 Sep 2011 13:05:18 -0400 https://reprap.org/forum/read.php?1,97309,97397#msg-97397 https://reprap.org/forum/read.php?1,97309,97397#msg-97397
[www.zappautomation.co.uk]]]> misan General Sun, 11 Sep 2011 10:46:20 -0400 https://reprap.org/forum/read.php?1,97309,97387#msg-97387 https://reprap.org/forum/read.php?1,97309,97387#msg-97387 nophead General Sun, 11 Sep 2011 07:11:37 -0400 https://reprap.org/forum/read.php?1,97309,97385#msg-97385 https://reprap.org/forum/read.php?1,97309,97385#msg-97385
Am I right thinking then my best bet for my Prusa build would be to go for these? [www.zappautomation.co.uk]

Thanks once again for your advice/info, I think I'm slowly getting there! lol]]> indieflow General Sun, 11 Sep 2011 06:34:08 -0400 https://reprap.org/forum/read.php?1,97309,97378#msg-97378 https://reprap.org/forum/read.php?1,97309,97378#msg-97378 nophead General Sun, 11 Sep 2011 02:59:00 -0400 https://reprap.org/forum/read.php?1,97309,97377#msg-97377 https://reprap.org/forum/read.php?1,97309,97377#msg-97377 indieflow General Sun, 11 Sep 2011 02:21:55 -0400 https://reprap.org/forum/read.php?1,97309,97357#msg-97357 https://reprap.org/forum/read.php?1,97309,97357#msg-97357
When you use the Zapp ones the thermal limit of the driver is around the same current that the motor gets too hot for plastic brackets, so they are a good match.]]> nophead General Sat, 10 Sep 2011 19:21:25 -0400 https://reprap.org/forum/read.php?1,97309,97352#msg-97352 https://reprap.org/forum/read.php?1,97309,97352#msg-97352 misan General Sat, 10 Sep 2011 18:36:28 -0400 https://reprap.org/forum/read.php?1,97309,97321#msg-97321 https://reprap.org/forum/read.php?1,97309,97321#msg-97321 indieflow General Sat, 10 Sep 2011 08:04:44 -0400 https://reprap.org/forum/read.php?1,97309,97319#msg-97319 https://reprap.org/forum/read.php?1,97309,97319#msg-97319 indieflow General Sat, 10 Sep 2011 06:52:46 -0400 https://reprap.org/forum/read.php?1,97309,97316#msg-97316 https://reprap.org/forum/read.php?1,97309,97316#msg-97316 www.zappautomation.co.uk].]]> nophead General Sat, 10 Sep 2011 06:30:19 -0400 https://reprap.org/forum/read.php?1,97309,97309#msg-97309 https://reprap.org/forum/read.php?1,97309,97309#msg-97309
I'm just planning my first Prusa Mendel build with a few friends and just after a bit of advice on NEMA 17 stepper motors! Now we've seen that thingfarm.org sell these [thingfarm.org] for £69.60 and was wondering if these [www.ebay.co.uk] would work instead, as obviously a hell of a lot cheaper and covers the holding torque approx. 49Ncm?

Any advice/help or links to other sellers would be greatly appreciated!

Simon]]> indieflow General Sat, 10 Sep 2011 05:50:12 -0400