Stepper motors getting pretty hot Hello, while calibrating my stepper motors, I noticed that they get pretty hot, especially the z axis, with temperatures of up to 90 °C after a couple of minutes of activity. Is that normal? I really don't think so. https://reprap.org/forum/read.php?1,759174,759174#msg-759174 Mon, 12 Oct 2026 23:12:27 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,759174,760656#msg-760656 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,760656#msg-760656 DjDemonD General Wed, 05 Apr 2017 16:58:29 -0400 https://reprap.org/forum/read.php?1,759174,760651#msg-760651 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,760651#msg-760651 Floyd General Wed, 05 Apr 2017 16:42:16 -0400 https://reprap.org/forum/read.php?1,759174,760635#msg-760635 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,760635#msg-760635 forums.reprap.org]

Running them at 1/32 with arduino mega might be a push but some manage it. With re-arm 1/32 leaves plenty of headroom.]]> DjDemonD General Wed, 05 Apr 2017 15:14:15 -0400 https://reprap.org/forum/read.php?1,759174,760572#msg-760572 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,760572#msg-760572 Floyd General Wed, 05 Apr 2017 10:23:43 -0400 https://reprap.org/forum/read.php?1,759174,760255#msg-760255 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,760255#msg-760255 Floyd General Mon, 03 Apr 2017 08:51:15 -0400 https://reprap.org/forum/read.php?1,759174,759530#msg-759530 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759530#msg-759530 Maybe I can work something out with my friend and get a duet or something. Who knows.]]> Floyd General Thu, 30 Mar 2017 15:01:04 -0400 https://reprap.org/forum/read.php?1,759174,759522#msg-759522 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759522#msg-759522
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Floyd
How are these motors?
Amazon link

Those should be more than adequate for any smallish (e.g. 200x200mm build area) 3D printer.]]> dc42 General Thu, 30 Mar 2017 14:30:43 -0400 https://reprap.org/forum/read.php?1,759174,759472#msg-759472 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759472#msg-759472 Amazon link

Trust me, id jump on a duet if the price wasn't so high. EDIT:I thought it was $200 but it is $170. Still a nice chunk.]]> Floyd General Thu, 30 Mar 2017 11:04:55 -0400 https://reprap.org/forum/read.php?1,759174,759462#msg-759462 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759462#msg-759462
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Floyd
Dang, well that means I have to deal with the noise then because ramps can only do a max of x16.

Not entirely true:

- On a non-delta printer I think you should generally be able to do x32 even with an 8-bit controller. But x32 plug-in drivers are generally based on DRV8825 chips, which have issues with some motors.

- You can get TMC2100-based plug-in drivers, which will interpolate x16 to x256. But not everyone who uses them has a good experience, as has recently been reported in this forum. Also they are not especially cheap - why not put that money towards a Duet WiFi or Duet Ethernet instead? :)]]> dc42 General Thu, 30 Mar 2017 10:17:57 -0400 https://reprap.org/forum/read.php?1,759174,759461#msg-759461 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759461#msg-759461 Thanks again for all the help and insane fast responses.]]> Floyd General Thu, 30 Mar 2017 10:09:49 -0400 https://reprap.org/forum/read.php?1,759174,759460#msg-759460 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759460#msg-759460
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dc42
What are the specification of your stepper motors?

Sadly a few people (and in the past, kit manufacturers too) have made the mistake of choosing 12V 0.4A stepper motors, which are a very poor match for most controller electronics.
I'll be honest, I have no idea. You see, I tried replicating the project in this instructables, so I got stepper motors from various DVD and floppy drives, I didn't actually know that voltage was a thing with the steppers]]> Anonymous User General Thu, 30 Mar 2017 10:08:47 -0400 https://reprap.org/forum/read.php?1,759174,759459#msg-759459 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759459#msg-759459 dc42 General Thu, 30 Mar 2017 10:08:01 -0400 https://reprap.org/forum/read.php?1,759174,759458#msg-759458 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759458#msg-759458 I already have a 80mm fan on the ramps board currently to help with temps.
I just knew these motors were "wrong" from the kit. No matter what I did they were loud and REAL hot.]]> Floyd General Thu, 30 Mar 2017 09:59:59 -0400 https://reprap.org/forum/read.php?1,759174,759441#msg-759441 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759441#msg-759441 dc42 General Thu, 30 Mar 2017 09:24:10 -0400 https://reprap.org/forum/read.php?1,759174,759435#msg-759435 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759435#msg-759435 Floyd General Thu, 30 Mar 2017 09:10:42 -0400 https://reprap.org/forum/read.php?1,759174,759432#msg-759432 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759432#msg-759432 dc42 General Thu, 30 Mar 2017 08:43:53 -0400 https://reprap.org/forum/read.php?1,759174,759424#msg-759424 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759424#msg-759424 Also this might explain why the motors are VERY hot running and insanely loud. I can barely hear anyone talking to me if im in the same room with it.
Id LOVE LOVE LOVE to get a duet or smoothieboard to run the new motors but I cannot swallow that pill for this printer.

So what would be a good stepper for a ramps setup?]]> Floyd General Thu, 30 Mar 2017 08:21:15 -0400 https://reprap.org/forum/read.php?1,759174,759350#msg-759350 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759350#msg-759350 hybridsteppermotor.sell.everychina.com].]]> dc42 General Thu, 30 Mar 2017 03:00:14 -0400 https://reprap.org/forum/read.php?1,759174,759326#msg-759326 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759326#msg-759326 Origamib General Wed, 29 Mar 2017 21:12:45 -0400 https://reprap.org/forum/read.php?1,759174,759301#msg-759301 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759301#msg-759301 All my motors are the same.]]> Floyd General Wed, 29 Mar 2017 17:37:35 -0400 https://reprap.org/forum/read.php?1,759174,759265#msg-759265 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759265#msg-759265 Floyd General Wed, 29 Mar 2017 14:55:53 -0400 https://reprap.org/forum/read.php?1,759174,759264#msg-759264 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759264#msg-759264 dc42 General Wed, 29 Mar 2017 14:48:52 -0400 https://reprap.org/forum/read.php?1,759174,759250#msg-759250 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759250#msg-759250 I tried getting info from the vendor and got nothing in return.]]> Floyd General Wed, 29 Mar 2017 13:38:11 -0400 https://reprap.org/forum/read.php?1,759174,759232#msg-759232 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759232#msg-759232
Sadly a few people (and in the past, kit manufacturers too) have made the mistake of choosing 12V 0.4A stepper motors, which are a very poor match for most controller electronics.]]> dc42 General Wed, 29 Mar 2017 12:57:06 -0400 https://reprap.org/forum/read.php?1,759174,759224#msg-759224 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759224#msg-759224
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dc42
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master1900
Ok, now I get to a point where if I turn it counterclockwise just a bit it will start screaming, and it stabilized the temperature at about 50-55 °C

Are you by any chance using DRV8825 drivers?
Nope, they are A4988]]> Anonymous User General Wed, 29 Mar 2017 12:04:57 -0400 https://reprap.org/forum/read.php?1,759174,759220#msg-759220 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759220#msg-759220
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master1900
Ok, now I get to a point where if I turn it counterclockwise just a bit it will start screaming, and it stabilized the temperature at about 50-55 °C

Are you by any chance using DRV8825 drivers?]]> dc42 General Wed, 29 Mar 2017 11:55:32 -0400 https://reprap.org/forum/read.php?1,759174,759210#msg-759210 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759210#msg-759210 Floyd General Wed, 29 Mar 2017 10:50:59 -0400 https://reprap.org/forum/read.php?1,759174,759207#msg-759207 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759207#msg-759207
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dc42
No it's not normal. You should reduce the drive current.
Ok, now I get to a point where if I turn it counterclockwise just a bit it will start screaming, and it stabilized the temperature at about 50-55 °C]]> Anonymous User General Wed, 29 Mar 2017 10:44:56 -0400 https://reprap.org/forum/read.php?1,759174,759183#msg-759183 Re: Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759183#msg-759183 dc42 General Wed, 29 Mar 2017 09:30:10 -0400 https://reprap.org/forum/read.php?1,759174,759174#msg-759174 Stepper motors getting pretty hot https://reprap.org/forum/read.php?1,759174,759174#msg-759174 Is that normal? I really don't think so.]]> Anonymous User General Wed, 29 Mar 2017 08:37:07 -0400