Problem homing z axis

newbynobi wrote: Set home offset to zero and home to - 5 and report what happens

Hm, according to forum.linuxcnc.org/49-basic-configuratio...rencing-fenja#207733 (I have the same machine) that can't be the solution because I have a combined home and limit switch? However I'll try it

This is my actual home entrys in INI File for my Z axis.

HOME = -10.0
HOME_OFFSET = 0.5
HOME_SEARCH_VEL = 15.0
HOME_LATCH_VEL = -0.5
HOME_USE_INDEX = NO
HOME_IGNORE_LIMITS = YES
HOME_SEQUENCE = 0

Should fit your needs

Hi Norbert,

with the config

I get the following errors:

anli wrote: Hi Norbert,

with the config

Code:

MIN_LIMIT = -190 MAX_LIMIT = 0.001 HOME = -10.000 HOME_OFFSET = 0.5 HOME_SEARCH_VEL = 8.000000 HOME_LATCH_VEL = 0.50000 HOME_FINAL_VEL = 0.50000 HOME_USE_INDEX = NO HOME_SEQUENCE = 0 HOME_IGNORE_LIMITS = YES

I get the following errors:

you have not put the - sign in

HOME_LATCH_VEL = -0.5

HOME = -10.000
HOME_OFFSET = 0.5
HOME_SEARCH_VEL = 8.000000 put a - sign in front will reverse the direction
HOME_LATCH_VEL = 0.50000 changing the sign will reverse direction
HOME_FINAL_VEL = 0.50000 Same here

I would make the homing slow so you can see what is happening

It should go to the switch and then reverse (back off the switch)

Please read careful and enter exactly what we told you!

HOME = -10.000
HOME_OFFSET = 0.5
HOME_SEARCH_VEL = - 8.0
HOME_LATCH_VEL = 0.5

This are the setting in your case, SEARCH and Latch need different directions
You do not need a HOME_FINAL_VEL entry, if not used, max vel will be used.

Norbert

Clive S wrote: you have not put the - sign in

You're right - I missed the - in front of HOME_LATCH_VEL . With the config

I get the following error (10 changed to 14):



What happens is that it moves towards the switch (right direction) and then stops once it hits the switch. It does not move further. I also tried with HOME_FINAL_VEL being negative - although it states in the documentation linuxcnc.org/docs/devel/html/config/ini-...html#_home_final_vel that it has to be a positive number. But the error is the same.

With the axis moves towards the wrong direction.