Homing problem

Capteren

im really new at printing and I've been trying to set homes for the axis but it just goes on a random location. Like when i try to home x it just goes up and right and stops, for y it just goes forward and for z it goes above non stop. Can someone help me about this please?

Repetier

Host is only sending the G28 command for homing. The real work is happening in the firmware of the printer so that is where to look and of course end stop status (M119). 

Roko

Info on homing:
https://drmrehorst.blogspot.com/2017/08/setting-up-3d-printers-origin.html
If you have Repetier firmware:
https://www.repetier.com/firmware/v100/
If you have Marlin Firmware:
http://marlinfw.org/docs/configuration/configuration.html

Capteren

ok thanks