1 Topic by willthewill (edited by willthewill 2016-05-24 13:15:47)

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Topic: Wiring Stepper Motor

Hello guys,

Sorry to ask for help in these hard times, end of Solidoodle but i have a quick question regardinf the wiring of the stepper motor.
Following the death of my Stepper motor extruder et following the advice o AZERATE ( thanks to him smile ) , i bought a new one
However not having a connector already put i have to do the wiring myself. I found this:

http://www.linengineering.com/resources … nnections/

So i followed the order red blue green black

Well, turn out it dont work, when i try, it just make on step and one step back continuously.

If you need any picture just say it and i'll do some.

Thanks smile

Stepper motor http://us.stepperonline.com/nema-17-bip … -p-14.html

Datasheet :http://us.stepperonline.com/download/pdf/17HS15-0404S.pdf

2 Reply by IronMan

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Re: Wiring Stepper Motor

A very easy way to do this is:

With no leads connected, rotate the motor shaft by hand.  It should turn freely and you would feel very small "steps".  Now, of the four leads coming from the motor, select 2 and twist the bare ends together.  Rotate the motor shaft by hand again.  If you feel no difference, then switch one of the leads from your twisted pair to another lead.  Try to spin the motor again.  When you have a proper pair tied together, the motor will be very difficult to turn by hand.  You have now located a coil pair.  The other 2 leads will be the other "pair".

Now wire these pairs into the connector from left to right with the first pair, then the second pair.

This should work...if the rotation is in the wrong direction you can just turn the connector around on the board or switch it in the firmware.

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3 Reply by willthewill

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Re: Wiring Stepper Motor

Wow mate,didn't thank a solution can be that easy, , i identified the pairs, ill go connect and print you a cookie when it's done!

4 Reply by IronMan

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Re: Wiring Stepper Motor

Chocolate Chip will do! big_smile

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5 Reply by willthewill

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Re: Wiring Stepper Motor

That actually worked. You sir, made my day.
Thank you !!!

6 Reply by IronMan

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Re: Wiring Stepper Motor

You're welcome...Happy printing!

SD2 - Stock - Enclosure - Heated Bed - Glass Plate - Auto Fire Extinguisher
Ord Bot Hadron - RAMPS 1.4 - Bulldog XL - E3D v6 - 10" x 10" PCB Heated Build w/SSR - Glass Plate
Thanks for All of Your Help!

7 Reply by willthewill

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Re: Wiring Stepper Motor

Well the wiring work but it still get way to hot, i'll have to adjust these trimpot after all.
Do you know how i do i find the vref with the datasheet?

8 Reply by wardjr

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Re: Wiring Stepper Motor

Just turn it down while it's moving till just before it stalls.  Then back up a tiny little bit.  Make sure you use a non conductive screw driver.  Remember a very little turn makes a huge difference.  The data sheets will only get you close and ultimately to truly dial them in you need to do it by feel and ear anyways.  If you start this while the motor is cool you should be able to tell when it's perfect and it simply won't hear up as much.

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9 Reply by willthewill (edited by willthewill 2016-05-25 08:35:51)

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Re: Wiring Stepper Motor

That seem seem like à fair plan! I indeed heard something like that on thé internet, i will try and keep you up to date!

By  the way i just wanted to say it really is cheerful to know that even if the cimpany collapsed, the community built theses years stay really strong,beign a total newby, i'm happy to say  i learnt a lot reading all of these threads.