[FR] Inversed Markforged / Hybrid Corexy

[jesterhead82]

Is your feature request related to a problem? Please describe.

Currently Marlin supports only Markforged / Belt paths as defined in #23163
Klipper e.g. has the same issue. the implemention of a inversed belt (e.g. Ratrig Idex) is not in mainline yet.

As a workaround I changed the maths (replace + with - and vice versa) to support my printer (its not finished yet, but at least axis are moving now correctly).
I Changed only the maths for the XY type, but I guess the same could be usefull for YX layouts.

In theory, if somebody tells me how would such a feature would be properly named / configured I could try to assemble a PR...

Planner.cpp:
~line 1992

#elif ENABLED(MARKFORGED_XY)
dm.a = (dist.a - dist.b > 0); // Motor A direction
dm.b = (dist.b > 0);

~line 2065
ABS(dist.a - dist.b), ABS(dist.b), ABS(dist.c)

~line 2113
dist_mm.a = (dist.a + dist.b) * mm_per_step[A_AXIS];

Stepper.cpp
~Line 3290

count_position.set(spos.a + spos.b, spos.b, spos.c);

~ 3383
#elif ENABLED(MARKFORGED_XY)
axis == CORE_AXIS_1
? count_position[CORE_AXIS_1] + count_position[CORE_AXIS_2]
: count_position[CORE_AXIS_2]

Are you looking for hardware support?

Custom Markforged kinematics

Describe the feature you want

Possibility to configure inverse markeforged (different beltpath)

Additional context

No response

[EvilGremlin]

MARKFORGED_XY & MARKFORGED_YX looks ok

[thisiskeithb]

Closing since you've opened a PR.

[github-actions]

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