Z axis homes but doesn't move otherwise I've been going mad trying to figure out why it is exhibiting this behaviour. The z axis homes but when I try to get it to move using the arrows around the target in Pronterface it doesn't move at all. Sometimes it gives a bit of a jerk but doesn't actually move. I have a Prusa Mendel i2 and I'm using RAMPS 1.4 with stepstick drivers. I'm using Slic3r and Pronterface to operate the printer. The Load Voltage to the driver is 12.34 V and the logic supply voltage is 4.97 V. The current is within the recommended range. I tried to see if it is the driver issue by using other drivers but the same problem occurs. When I connect the z axis motors to the y axis driver they work as they should. All the other drivers and motors are working perfectly. I'm at the end of my tether. Anyone have any ideas? https://reprap.org/forum/read.php?4,428283,428283#msg-428283 Sun, 15 Mar 2026 08:03:46 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?4,428283,430084#msg-430084 Re: Z axis homes but doesn't move otherwise https://reprap.org/forum/read.php?4,428283,430084#msg-430084 ShadowE Reprappers Mon, 10 Nov 2014 02:40:34 -0500 https://reprap.org/forum/read.php?4,428283,430082#msg-430082 Re: Z axis homes but doesn't move otherwise https://reprap.org/forum/read.php?4,428283,430082#msg-430082 ShadowE Reprappers Mon, 10 Nov 2014 02:39:08 -0500 https://reprap.org/forum/read.php?4,428283,430073#msg-430073 Re: Z axis homes but doesn't move otherwise https://reprap.org/forum/read.php?4,428283,430073#msg-430073
try a "g1 z10 f120" move z to 10 at 2mm/sec (120mm/min)

If that works... its your feed rates.. update your max feed rates in your firmware/eeprom with lower numbers, so that gcode can't exceed it.]]> Dust Reprappers Mon, 10 Nov 2014 02:17:30 -0500 https://reprap.org/forum/read.php?4,428283,430066#msg-430066 Re: Z axis homes but doesn't move otherwise https://reprap.org/forum/read.php?4,428283,430066#msg-430066
I'm using Sprinter firmware.]]> ShadowE Reprappers Mon, 10 Nov 2014 01:49:21 -0500 https://reprap.org/forum/read.php?4,428283,428315#msg-428315 Re: Z axis homes but doesn't move otherwise https://reprap.org/forum/read.php?4,428283,428315#msg-428315
Quote
ShadowE
M119 command returns this:

>>M119
SENDING:M119
x_min:L y_min:L z_min:H z_max:H

To invert the max endstop do I have to change it in configuration.h? Which lines should i bee looking at?

Which Firmware are you using I'll assume for now it is MARLIN in which case you need to look for something like in the attached snippet.]]> dougal1957 Reprappers Wed, 05 Nov 2014 05:39:36 -0500 https://reprap.org/forum/read.php?4,428283,428304#msg-428304 Re: Z axis homes but doesn't move otherwise https://reprap.org/forum/read.php?4,428283,428304#msg-428304
>>M119
SENDING:M119
x_min:L y_min:L z_min:H z_max:H

To invert the max endstop do I have to change it in configuration.h? Which lines should i bee looking at?]]> ShadowE Reprappers Wed, 05 Nov 2014 05:11:10 -0500 https://reprap.org/forum/read.php?4,428283,428298#msg-428298 Re: Z axis homes but doesn't move otherwise https://reprap.org/forum/read.php?4,428283,428298#msg-428298
Quote
ShadowE
I've been going mad trying to figure out why it is exhibiting this behaviour.

The z axis homes but when I try to get it to move using the arrows around the target in Pronterface it doesn't move at all. Sometimes it gives a bit of a jerk but doesn't actually move.

I have a Prusa Mendel i2 and I'm using RAMPS 1.4 with stepstick drivers. I'm using Slic3r and Pronterface to operate the printer. The Load Voltage to the driver is 12.34 V and the logic supply voltage is 4.97 V. The current is within the recommended range.

I tried to see if it is the driver issue by using other drivers but the same problem occurs. When I connect the z axis motors to the y axis driver they work as they should.
All the other drivers and motors are working perfectly.

I'm at the end of my tether. Anyone have any ideas?

Check your endstops (M119 command) if your max endstop is defined and active then you can't move towards it likewise with the Min endstops you may have to invert one or more of them.

HTH
Doug]]> dougal1957 Reprappers Wed, 05 Nov 2014 05:01:36 -0500 https://reprap.org/forum/read.php?4,428283,428283#msg-428283 Z axis homes but doesn't move otherwise https://reprap.org/forum/read.php?4,428283,428283#msg-428283
The z axis homes but when I try to get it to move using the arrows around the target in Pronterface it doesn't move at all. Sometimes it gives a bit of a jerk but doesn't actually move.

I have a Prusa Mendel i2 and I'm using RAMPS 1.4 with stepstick drivers. I'm using Slic3r and Pronterface to operate the printer. The Load Voltage to the driver is 12.34 V and the logic supply voltage is 4.97 V. The current is within the recommended range.

I tried to see if it is the driver issue by using other drivers but the same problem occurs. When I connect the z axis motors to the y axis driver they work as they should.
All the other drivers and motors are working perfectly.

I'm at the end of my tether. Anyone have any ideas?]]> ShadowE Reprappers Wed, 05 Nov 2014 04:27:40 -0500