X-Axis Endstop not working?? Hey guys. So I just built my first Prusa i3. Everything is working except for the X-Axis endstop. The physical switch itself works when I plug it into the Y or Z endstop pins on the RAMPS board for testing. The other switches do not work on the X-Axis pins on the RAMPS board though. So my first thought (an obvious wrong one) was that the RAMPS board or MEGA had a bad I/O pin. I swapped both out and the same issue persists. So it's obviously a software issue. I did try a fresh Marlin firmware, but no change. I'm asking for one of your ultra-reprap-wizards to give me any clue as to maybe what section of the firmware code to check to confirm that endstop is being recognized. This issue has been going on for over 1 month while I waited for replacement parts to come in to try and fix it. I'd just like to be able to use the printer.... Any help would be greatly appreciated!! Thanks in advance, Mike UPDATE: 6/12/15: So I was messing around with a variety of the X-Axis Inverter/Endstop settings. It works when I have the endstop home set to '1', but not '-1'. Shouldn't home be the left front corner of the bed? https://reprap.org/forum/read.php?262,520977,520977#msg-520977 Mon, 08 Jun 2026 08:02:41 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?262,520977,521206#msg-521206 Re: X-Axis Endstop not working?? https://reprap.org/forum/read.php?262,520977,521206#msg-521206 mrmills129 Printing Sat, 13 Jun 2015 13:53:49 -0400 https://reprap.org/forum/read.php?262,520977,520986#msg-520986 Re: X-Axis Endstop not working?? https://reprap.org/forum/read.php?262,520977,520986#msg-520986
And welcome to the forum! :)]]> JamesK Printing Fri, 12 Jun 2015 21:53:27 -0400 https://reprap.org/forum/read.php?262,520977,520977#msg-520977 X-Axis Endstop not working?? https://reprap.org/forum/read.php?262,520977,520977#msg-520977
Any help would be greatly appreciated!!

Thanks in advance,
Mike


UPDATE: 6/12/15: So I was messing around with a variety of the X-Axis Inverter/Endstop settings. It works when I have the endstop home set to '1', but not '-1'. Shouldn't home be the left front corner of the bed?]]> mrmills129 Printing Fri, 12 Jun 2015 20:46:54 -0400