Acrylic Prusa I3 pro B motor move only one direction

[roadster]

Hello i have built the new Acrylic Prusa I3 pro B 8mm with mega 2560, Ramps 1.4 and A4988 drive motor, but the motor move only in one direction (the side of limit switch) I have tested the limit switch and is work good, when the axe hit the limit switch on the 2004 LCD i see endstop hit : (X Or Y Or Z) but all motor don't move to other direction ( X go only to left, Y go only to back, and Z go only to down) the same if a use the LCD 2004 botton or my Pc to move Axe. Somebody can help me Thank

[zhangxueyou]

Please leave your email address, I will send you another firmware.

[roadster]

thank it work good now

[edfriberg]

I also need firmware:
Specifications:
Build volume: 200 x200x180mm
Layer resolution: 0.1-0.3mm
Positioning Precision: 0.1-0.3mm
Filament diameter: 1.75mm
MK8 extruder
Nozzle diameter: 0.3mm, 0.35mm, 0.4 mm, 0.5mm
Filament type: ABS/ PLA/Flexible PLA/ Wood /Nylon

Mechanical:
Body: Acrylic plate of 8 mm thickness (black)
Build Platform: Borosilicate glass + MK2A heat bed
Motor driver board - A4988
Control board - Sanguinololu (Standard )

[Pierfrancesco]

Can I have This firmware too?

[tiffy]

Good day . i have bought Geeetech i3 pro b (8 mm acrylic ) and the same problem motor rotates only in one direction . how to fix it ?

[William]

Hi,@tiffy
Did you mean all the motors or some of them?
Refer to this post:
http://www.geeetech.com/forum/viewtopic ... 18&t=17883

[tiffy]

All 3 motors have got the same problem. They move only in one direction (even when i home them) and they move in short distance . Actually they move in reverse direction but only one short time and they stop. No action.

[William]

Have you got all the three endstop connected to the right slots(X_min,Y_min,Z_min) on the board?

[tiffy]

Yes. First time it moves only in one direction then i can reverse it but for one short distance. And when i home it all three motors they move towards endstop switches but they move short distance and stop.