initial setup issue

[Dermot]

Hello Everybody,

This is my first post here, I am sure there will be more to follow !!!

I am sure I can't be the first with this issue.

I have built the 301 printer and I am currently connecting it up.

i have it connected to Repetier as it suggests.

When I press the home icon the extruder rises via the 3 motors but one motor never reaches the top and it starts to slip on the belt before it hits the end stops.

If I disconnect one or two of the 3 long white extruder tubes from the top of the extruder to reduce the strain it seems to work fine.

Once I connect the 3 of them back, the same problem happen.

It is as if the tubes are too stiff for the job, or belt rungs not big enough, or maybe I have done something wrong.

Any suggestions much appreciated,

Thanking you in advance

Dermot

[Gingko]

try to increase the voltage of A4988 of that motor to 1.0V or 1.1V.