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Building P3Steel - Steppers will not move

Posted by steve1040 
Building P3Steel - Steppers will not move
March 08, 2016 08:27AM
Good Morning All,
I've been building my printer for several months now. I was excited to finally get to the testing stage


I followed the config instructions on RepRap

I tested the end stops and they all worked or triggered as expected.
I've hit a road block in my build.
I have no movement from either axis.

Any suggestions on where to look to troubleshoot and resolve my issue?

I've attached my Configuration.h file

Thanks for any help

Steve
Attachments:
open | download - Configuration.h (30.8 KB)
Re: Building P3Steel - Steppers will not move
March 08, 2016 08:57AM
if you use a ramps look for the ramps test code.
Re: Building P3Steel - Steppers will not move
March 08, 2016 09:30AM
Check if the enable signal needs to be inverted ( been there )
Re: Building P3Steel - Steppers will not move
March 08, 2016 10:42AM
I ran ramps test code?

Red and green lights flashed but no movement

Edited 1 time(s). Last edit at 03/08/2016 11:24AM by steve1040.
Re: Building P3Steel - Steppers will not move
March 08, 2016 01:00PM
check the orientation of the steppers
Re: Building P3Steel - Steppers will not move
March 08, 2016 03:31PM
I've removed all connections on the Ramps board.

Question is it possible to connect a single stepper and test it? or does the board require all connections have to be made before it will allow any stepper to function.

I was hoping to connect each axis test that it works before moving on to the next.

Thoughts
Steve
Re: Building P3Steel - Steppers will not move
March 08, 2016 05:46PM
using the ramps test code will allow testing a single stepper. Just make sure about the orientation and the reference voltage
Re: Building P3Steel - Steppers will not move
March 09, 2016 11:05AM
I tested each stepper and had no movement at all.

I'm going to try buying another set of stepper drivers before buying a new Ramp.
Re: Building P3Steel - Steppers will not move
March 09, 2016 08:37PM
For movement you need

steppers drivers in the correct way (can be plugged in backwards or off by one very easily)

12v on the 12volt 5amp input (not 5v on it, which seem to be a common issue)

12v getting to the driver modules (fuses can blow etc and stop this, so measure its really there on vmot pin)

Stepper motors wired correctly, steppers are two coils, make sure first coil is on first two pins, and second coil is on last two pins of the ramps connector

Firmware, set to correct motherboard (or test firmware) As these define which pins are used for what, including step direction and enable for the stepper modules

Enough current getting to the steppers, this is limited with the vref pot on the driver module (see [reprap.org] for more info)

and that the axis isn't physically stuck (ie with the belts off, you can move it by hand easily)
Re: Building P3Steel - Steppers will not move
March 10, 2016 04:58AM
Quote
Dust
For movement you need



12v on the 12volt 5amp input (not 5v on it, which seem to be a common issue)

I believe this is my issue.
I'll need to pull the build back out - I was going to set it to the side until I'd ordered new parts.

I will post my finding after I've rewired

Thanks
Steve

Edited 1 time(s). Last edit at 03/10/2016 04:59AM by steve1040.
Re: Building P3Steel - Steppers will not move
March 10, 2016 06:00PM
Solved:

Cause: I had connected 5 volts to 5 amp input
Re: Building P3Steel - Steppers will not move
March 10, 2016 07:28PM
Lucky, that's one of the few mistakes that causes no damage (just loss of hair!)
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