the_judges
Posts: 1
Joined: Mon Mar 16, 2015 4:03 am

Homing works, but Zero failed

Hey guys,

i bought me the software yesterday and i can say now: WOW!!!
Out of the Box such a good quality! NICE!

I use a German RepRap Neo Printer and played with the software.
Homing works really fine, BUT when i click on X/Y/Z in the direction where normally is no more space, the printer drives in this direction! it runs against the wall....in case of homing properly i thougt it shouln't be!
In Repetier Host e.g. the printer doesn't anything in the wrong direction after homing!

Is it a bug??

Sorry for my english - it's not very well.
JoeJ
Posts: 1435
Joined: Sun Feb 16, 2014 10:52 am

Re: Homing works, but Zero failed

Are you moving towards your hardware endstops (the little lever switches) or away from them? Usually your hardware endstops are in the min XYZ directions, so another way to ask this is are you moving in the negative direction (towards 0,0,0) or are you moving in the positive direction (away from 0,0,0)?

If the printer triggers the hardware endstops, it should stop immediately. If it doesn't, you have a problem with your firmware or electrical wiring. In the max direction, the firmware can be configured to have max software endstops enabled. This means that the firmware won't allow you to move beyond your max build volume, even though there are no real physical endstops there. The software it just issuing jogging commands, so it won't stop the motion. That is the responsibility of the firmware.

So if this is happening with the hardware endstops, you need to check your wiring. If it's happening in the other direction, just enable max software endstops in the firmware (or don't jog past your axis limits :D )

Return to “Troubleshooting and Bug Reports”