Printed Z Scale issue

[dakis_pn 0]

My prints are printed in a wrong height (z - axis) the x and y scale are printing fine but all the models are shorter than they should be! Any ideas?

[wombl1 10]

Morning

If they are exactly half the height they should be, than you have to jumper the Pololu Driver.

In Front of the Pololudrivers are a few jumpers, if all jumpers are set ( Default ), the microstepping is 1/16, for the Z stage this should be 1/8.

Just have a look at the board with the pololu drivers, if all jumpers are set the same, you know you have to change it

At least this was the issue with my board, seems that a certain batch of Ultimakers was jumpered wrong.

[Daid 306]

See this image:

http://wiki.ultimaker.com/File:El1.5.4-PCB.jpg

For how the jumpers need to be placed.

[dakis_pn 0]

Morning

If they are exactly half the height they should be, than you have to jumper the Pololu Driver.

In Front of the Pololudrivers are a few jumpers, if all jumpers are set ( Default ), the microstepping is 1/16, for the Z stage this should be 1/8.

Just have a look at the board with the pololu drivers, if all jumpers are set the same, you know you have to change it

At least this was the issue with my board, seems that a certain batch of Ultimakers was jumpered wrong.

Sorry I don't know anything about electronics and boards and jumpers. Although i am pretty sure that i placed the wires correctly! where can i see that microstepping and how can i change it? :/

thank you

[ddurant 0]

Sorry I don't know anything about electronics and boards and jumpers. Although i am pretty sure that i placed the wires correctly! where can i see that microstepping and how can i change it? :/

On the picture of the electronics,

http://wiki.ultimaker.com/File:El1.5.4-PCB.jpg

, look at the top/right.

See the 3 little circuit boards plugged into the big board? Those are the Pololu stepper drivers for your X, Y and Z motors.

On the picture, below each of the stepper drivers, are 3 little black rectangles. These are the jumpers that control how many "steps" it takes to turn the motor one revolution. Notice that the jumpers for the rightmost stepper driver (Z) is set differently from the other two - if you look really closely, you can see that the jumper (the little black plastic thing) labeled MS3 is only attached to one pin and that the other jumpers are attached to two pins.

CAREFULLY, with all the power off and unplugged, check the jumpers on your board to make sure they match the picture. To remove a jumper, just wiggle it gently with needle-nose pliers of something similar.

Don't hesitate to ask if you have more questions. Pictures are good, too.

[dakis_pn 0]

Sorry I don't know anything about electronics and boards and jumpers. Although i am pretty sure that i placed the wires correctly! where can i see that microstepping and how can i change it? :/

On the picture of the electronics,

http://wiki.ultimaker.com/File:El1.5.4-PCB.jpg

, look at the top/right.

See the 3 little circuit boards plugged into the big board? Those are the Pololu stepper drivers for your X, Y and Z motors.

On the picture, below each of the stepper drivers, are 3 little black rectangles. These are the jumpers that control how many "steps" it takes to turn the motor one revolution. Notice that the jumpers for the rightmost stepper driver (Z) is set differently from the other two - if you look really closely, you can see that the jumper (the little black plastic thing) labeled MS3 is only attached to one pin and that the other jumpers are attached to two pins.

CAREFULLY, with all the power off and unplugged, check the jumpers on your board to make sure they match the picture. To remove a jumper, just wiggle it gently with needle-nose pliers of something similar.

Don't hesitate to ask if you have more questions. Pictures are good, too.

Thank you very much! very helpful! fixed!