Custom homing - without back-off, keep in one direction

Dears,
I am retrofitting Brother TC-225 milling machine with LinuxCNC 2.7.8.
I would like to keep as much original behavior as possible, including homing sequence.
This milling machine is equipped with separate limit+, limit - and home switch.
Original homing is specific, without changing direction of the move. Home switch is someway "overpassed".

I will try to describe below original Brother homing process (in Liniux CNC nomenclature :
- search for home switch in "+" direction (@ home_search_vel). There is no back-off! after home switch trip
- final detection of switch home (@ home latch_vel), still in the same direction, home switch "overpassed" until release
- index pulse (@ home latch_vel), still in the same direction
Hope you understand what I mean .

Is it possible at all to interfere LCNC homing sequence so deep?

I am not sure why Brother engineers made such homing algorithm. Only backlash issues comes in to my mind...
Anyway, it is not a big deal to use homing sequence served by Linux, but I am jut curious if such modification is possible at all.

Wow!
This is impressive .
Anyway I will leave this as it is for now. It is to risky for me to perform any LCNC source code changes.

plmicia wrote:

Wow!
This is impressive .

I also said that about the homing sequence documentation. Very clear. I remember when wading through it the first time how well it had been put together. It answered every question I had about the process.