Z axis issues I jog all the motors in each direction. X and Y seem to be working. I go up on the Z and it just turns so so slow and I tell it to go up 100mm and it goes up about twenty. I used the Josef Prusa MM per step online tool and set the lead screw 2267.718321038048 steps per mm value and changed it in the firmware. I am running Repetier on my 2011 MBP. What I'm curious about is why is the motor so slow to go up and inaccurate and why when I home the machine the motors move at a lightning speed. Thanks for your time. Here is the link to the video of this in action. [www.youtube.com] https://reprap.org/forum/read.php?4,189325,189325#msg-189325 Wed, 22 Jul 2026 07:36:24 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?4,189325,190956#msg-190956 Re: Z axis issues https://reprap.org/forum/read.php?4,189325,190956#msg-190956
edit: Oh, the settings are automatically stored to EEPROM when the firmware first runs and there's a special parameter you have to use if you want to (ever) override the EEPROM setting with the ones from Configuration.h. Haven't used Repetier before this so I had missed that...]]> ttsalo Reprappers Fri, 08 Mar 2013 18:46:28 -0500 https://reprap.org/forum/read.php?4,189325,190948#msg-190948 Re: Z axis issues with Repetier firmware https://reprap.org/forum/read.php?4,189325,190948#msg-190948
And yes, the Z steps are most definetely correct: #define ZAXIS_STEPS_PER_MM 2560.0

Z homing works fine, and moves much faster than the regular move command.]]> ttsalo Reprappers Fri, 08 Mar 2013 18:23:01 -0500 https://reprap.org/forum/read.php?4,189325,189373#msg-189373 Re: Z axis issues https://reprap.org/forum/read.php?4,189325,189373#msg-189373 sheck626 Reprappers Sun, 03 Mar 2013 23:17:17 -0500 https://reprap.org/forum/read.php?4,189325,189332#msg-189332 Re: Z axis issues https://reprap.org/forum/read.php?4,189325,189332#msg-189332 prairiewolf407 Reprappers Sun, 03 Mar 2013 18:33:21 -0500 https://reprap.org/forum/read.php?4,189325,189325#msg-189325 Z axis issues https://reprap.org/forum/read.php?4,189325,189325#msg-189325

Here is the link to the video of this in action.

[www.youtube.com]]]> LordTovar Reprappers Sun, 03 Mar 2013 17:52:04 -0500