Hi fellows,
I am pretty new to 3d printing and this is my first machine.
I am expiriencing an unleveling of the z axis. After some prints, one lead screw seams to be moving further than the other.
After some prints i had to manually turn one lead screw to level de X axis.
This always happens with the left one, the one not supporting de X axis motor.
With short prints this was not an issue. But, when i tried to print a figure of 10cm height, one of the lead screws of the Z axis stopped going up and the X axis got uneven.
What i did:
i checked that both motors travel the same distance and move at the same speed. That was good.
I reasembled the lead screw and the couplers to check if they were bent or misaligned. That was good too.
I home the z axis, level the X axis, then home again and then moved by the panel the Z axis up and down several times to check that it stays leveled. This worked ok too, no problems detected, y moved the axis by 10cm and by 0.1cm the same distance, and i did not have any issues.
However, when i tried printing again, the z axis jammed again in fairly the same spot than the previuos print.
So, it appears to happen only when printing and it left me dumbfounded.
I also read a fair amount of posts with z axis problems and could not find my problem.
Any bit of help is greatly appriciated.
Cheers and happy printing!
pd: sorry for my english, is my second language.
Z axis jams when printing.
Re: Z axis jams when printing.
Hi, You can check whether the lower threaded rod itself is bent
Or whether there is a missing tooth above 10.
Then you can check the first step value setting,
You can refer to: viewtopic.php?f=66&t=69776
Or whether there is a missing tooth above 10.
Then you can check the first step value setting,
You can refer to: viewtopic.php?f=66&t=69776
-Keep your mind and try to test it. 
-Everything will be fun！-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!
-Everything will be fun！-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!
Re: Z axis jams when printing.
Just had exactly this. At the midpoint of the Z-Axis travel, the tension of the X-Axis belt bends the Z-Axis rods inwards by a couple of mm. At the extremities, the z-Axis slides jam.
The fix is really easy, and obvious. Slacken off the X-Axis belt completely and remove the locking collars from the horizontal X-Axis rods. Refit them on the inside of the mechanism, so they are between the two slide blocks (rather than on the outside of them) and resist the belt tension.
The fix is really easy, and obvious. Slacken off the X-Axis belt completely and remove the locking collars from the horizontal X-Axis rods. Refit them on the inside of the mechanism, so they are between the two slide blocks (rather than on the outside of them) and resist the belt tension.