Delta Kossel motor control problem

Hi guys,

I have a weird problem with motor movement control. No matter what movement command I send to my printer (whether it's x+,x-,y+,y-,z+,z-) from my host the motors always rotate in the same direction, with same speed and time.
Example:
Command: x+ 0.1
Motors move the effector in +z axis for 100mm

Command: y- 10
Motors move the effector in +z axis for 100mm

Command: z- 50
Motors move the effector in +z axis for 100mm

and so on... same thing happens when I send command to the extruder.

Where is the problem?
I tried using both pronterface and repetier.
Six months ago my printer was working perfectly fine. Only a couple of days ago I started re-calibrating the machine.
Endstop triggers are working fine.

That is weird what firmware are you using? Can you send a command to move just one motor at a time? Can you refresh your firmware in case the memory is corrupted?

So you home first?
Then send G1 Z100 F5000

What happens? All three motors move?
Does it home at all?

Edited 1 time(s). Last edit at 02/12/2017 06:08AM by DjDemonD.

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Simon Khoury

Co-founder of [www.precisionpiezo.co.uk] Accurate, repeatable, versatile Z-Probes
Published:Inventions

The first thing that springs to mind is that the direction signal is not getting to the drivers (Pololu or whatever) This may be either hardware failure or something has gone wrong with the firmware. Look at the Arduino Pins.h to see if that has somehow become corrupt.

Mike

I'd be more looking at whether the whole board is resetting, and trying to home.

Hi everyone!

Everything is fine! That kind of behavior only happens before homing. After G28 everything is back in place. Thanks for quick response.

Cheers!

Edited 2 time(s). Last edit at 02/12/2017 12:28PM by Andres_Mikkelson.