Weird homing behavior. Y+Y2 out of sync

Hello!
Long time lurker, first time poster here.
Finishing up my first DIY CNC plasma table. (Many of you guys have been a huge help to me without even knowing! Big thanks for that!)
Got stuck with a weird homing issue - YY2 axis goes searching for the home sensors (both motors at the same time with the same velocity), latches to the sensors (also in sync), and then they both drive to the final home separately, Y and then Y2...
I've tried changing the homing sequence to 1 2 2 3, 1 -2 -2 3, 1 2 -2 3, 1 -2 2 3. Tried creating new configuration using pncconfig - always the same result.
After the homing everything works fine. Tried some dry runs, tried cutting some straight lines - no problem. Just the homing. Unless its supposed to be like that?

Try changing the home_sequence to -1 in you ini file. I don't think -2 is legal unless there is another joint axis.

In the ini file you have:-

HOME = 2950.0

HOME_OFFSET = 2960.000000 ( I generally use this to square the gantry with a low number like 1-5 mm)
HOME_SEARCH_VEL = 83.333333 ( this is the speed to the home switch)
HOME_LATCH_VEL = 16.666667 (this is the speed to the latch position. I generally back off so might need to put a - in front. ie -16.666)

HOME_FINAL_VEL = 0.000000 (this is the speed to the home position)

HOME_SEQUENCE = -2 ( this is fine for both Y joints)

From the manual linuxcnc.org/docs/devel/html/config/ini-...tml#_homing_sequence

Clive wrote:

HOME_SEQUENCE = -2 ( this is fine for both Y joints)
 

That does not agree with the docs which state:
The initial HOME_SEQUENCE number may be 0, 1 (or -1). The absolute value of sequence numbers must increment by one — skipping sequence numbers is not supported. If a sequence number is omitted, HOME ALL homing will stop upon completion of the last valid sequence number.
Ref: linuxcnc.org/docs/devel/html/config/ini-...tml#_homing_sequence

rodw wrote:

Clive wrote:

HOME_SEQUENCE = -2 ( this is fine for both Y joints)
 
That does not agree with the docs which state:
The initial HOME_SEQUENCE number may be 0, 1 (or -1). The absolute value of sequence numbers must increment by one — skipping sequence numbers is not supported. If a sequence number is omitted, HOME ALL homing will stop upon completion of the last valid sequence number.
Ref: linuxcnc.org/docs/devel/html/config/ini-...tml#_homing_sequence

I don't see where he is skipping numbers

He has in the ini file :-
HOME_SEQUENCE Z = 0 . X = 1 . Y1 and Y2 = -2

They do have the same HOME_FINAL_VELOCITY. In my understanding 0 = max velocity setting? And both joints were set to 25000mm/min if I remember correctly.
Here's a video Tommy

Rod, I've tried many different combinations for the homing sequence - always the same result...