Question about Z stepper motor

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DrRobot
Posts: 51
Joined: Wed Aug 19, 2015 5:27 pm

Question about Z stepper motor

Post by DrRobot » Wed Aug 19, 2015 5:38 pm

Hello everyone! I just got my M2 assembled and tested last night. Everything works well so far, except that when I was jogging along Z axis, it accidentally hit the limit at the bottom, and the Z stepper motor seemed skipping gears and made some loud grinding noise. I stopped the machine immediately after that. Would this cause any damage to the leadscrew and the Z motor? Thanks!

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Jules
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Joined: Wed Jan 21, 2015 1:36 am

Re: Question about Z stepper motor

Post by Jules » Wed Aug 19, 2015 5:44 pm

Sure hope not - done it a dozen times at least. :P

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Mark the Greater
Posts: 124
Joined: Mon Jul 27, 2015 8:27 pm
Location: Brookfield, IL

Re: Question about Z stepper motor

Post by Mark the Greater » Wed Aug 19, 2015 5:51 pm

Me too! Just don't let it happen again. Or else...
Love Always,
MtG

DrRobot
Posts: 51
Joined: Wed Aug 19, 2015 5:27 pm

Re: Question about Z stepper motor

Post by DrRobot » Wed Aug 19, 2015 6:00 pm

I was hoping there is a mechanism in stepper motors, when there is excessive force applied, it just skips without causing any damage. I did a sample print after that and it seems to be working fine, I'll make sure it won't happen again!

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Mark the Greater
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Joined: Mon Jul 27, 2015 8:27 pm
Location: Brookfield, IL

Re: Question about Z stepper motor

Post by Mark the Greater » Wed Aug 19, 2015 6:06 pm

I may well be wrong here, but I think the field would just slip if the force applied was too great.
Love Always,
MtG

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jimc
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Re: Question about Z stepper motor

Post by jimc » Wed Aug 19, 2015 6:31 pm

It does no damage at all. There is no connection between the all thread shaft and the stepper. The all thread just has the motor's rotor loctited onto the end. The rotor makes no connection to the outer case or windings of the motor at all. The noise is just the magnets slipping

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Jules
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Joined: Wed Jan 21, 2015 1:36 am

Re: Question about Z stepper motor

Post by Jules » Wed Aug 19, 2015 6:50 pm

Then there's this, which i highly recommend in PETG:

http://www.thingiverse.com/thing:615104

:D

DrRobot
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Joined: Wed Aug 19, 2015 5:27 pm

Re: Question about Z stepper motor

Post by DrRobot » Wed Aug 19, 2015 7:54 pm

Jules wrote:Then there's this, which i highly recommend in PETG:

http://www.thingiverse.com/thing:615104

:D
Nice! now the machine can print something to fix itself :D Thanks for all the replies!

jsc
Posts: 1864
Joined: Thu Apr 10, 2014 4:00 am

Re: Question about Z stepper motor

Post by jsc » Wed Aug 19, 2015 11:43 pm

Check out the remix from that print, too. Tim made a nice one that snaps on.

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Matt_Sharkey
Posts: 347
Joined: Mon Oct 20, 2014 3:10 pm

Re: Question about Z stepper motor

Post by Matt_Sharkey » Thu Aug 20, 2015 12:56 am

DrRobot wrote: Nice! now the machine can print something to fix itself :D
5QdBVLe.jpg
5QdBVLe.jpg (45.2 KiB) Viewed 2413 times
Heres a few to get you started:

Tool Holder: http://www.thingiverse.com/thing:132171
Fan Duct: http://www.thingiverse.com/thing:714000
Z holder: http://www.thingiverse.com/thing:53886
Z hardstop: http://www.thingiverse.com/thing:54014
Longer filament guide: http://www.thingiverse.com/thing:63487
Extended spool holde: http://www.thingiverse.com/thing:254796
Corner clamps: http://www.thingiverse.com/thing:602194
All of the M2 Printed parts: https://github.com/MakerGear/M2/tree/ma ... 0Parts/STL

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