search

bigtreetech / BIGTREETECH-GTR-V1.0

BIGTREETECH GTR V1.0 motherboard is a high-performance 3D printer main control board with the core controller STM32F407IGT6, which was launched by the 3D printing team of ShenZhen BigTree Technology CO.,LTD ., aiming at solving some problems existing in the motherboard market. The BIGTREETECH GTR V1.0 is the motherboard, and the BIGTREETECH M5 V1.0 is the expansion board.
90 stars 55 forks source link

Dual Z drives #53

Open MartinDavids opened 3 years ago

MartinDavids commented 3 years ago

Has anyone use E1 as a second Z drive? if so can you help me with what you changed in Marlin to get it to work.

Thanks in Advance

iruYo commented 3 years ago

I've configured my GTR like this and it is working great.

Changes in config.h

#define X_DRIVER_TYPE  TMC2209
#define Y_DRIVER_TYPE  TMC2209
#define Z_DRIVER_TYPE  TMC2209
//#define X2_DRIVER_TYPE A4988
//#define Y2_DRIVER_TYPE A4988
#define Z2_DRIVER_TYPE TMC2209
//#define Z3_DRIVER_TYPE A4988
//#define Z4_DRIVER_TYPE A4988
#define E0_DRIVER_TYPE TMC2209

Changes in config_adv.h

#define NUM_Z_STEPPER_DRIVERS 2

[...]

#define Z_STEPPER_AUTO_ALIGN

Make sure to put the jumper back into the Z2 motor pins and use E1 instead.

DocYester commented 3 years ago

So it should be possible to use this board for a triple-z setup ?! Just need X,Y,Z1,Z2,Z3,E first Z goes into Z1 Port , second in E0 , third in E1 and the E-Motor in E2

geozoc commented 3 years ago

Yes triple-z would be possible if a single head extruder is used otherwise you would need to upgrade the GTR with the extension board M5.

Regarding the setup above: I suggest to also add a defininition for the second Z-endstop or take care which one is used.

Best G

melslenstra commented 2 years ago

So it should be possible to use this board for a triple-z setup ?! Just need X,Y,Z1,Z2,Z3,E first Z goes into Z1 Port , second in E0 , third in E1 and the E-Motor in E2

I think you got the order wrong; Marlin first assigns extruders and then additional Z channels to the unused E channels. So in your case, you'd end up getting:

X = X
Y = Y
Z1 = Z
E = E0
Z2 = E1
Z3 = E2
DocYester commented 2 years ago

Order isnt really relevant at all ... Made it with 4 Z-Axis X , Y , E , Z , Z1 , Z2 , Z3 The "doubled" Port for 2 Z Axis is now my Extruder ... just to have it clean

melslenstra commented 2 years ago

How did you achieve that? Did you remap the relevant pins in the pins_XXX.h file for the board?

Either way, I was just commenting on the order in which Marlin assigns steppers to the logical En steppers as defined in the pins_, where extruders (however many set by EXTRUDERS) come first and Z-steppers last. Unless there's a way to change that logic that I'm not aware of?

DocYester commented 2 years ago

How did you achieve that? Did you remap the relevant pins in the pins_XXX.h file for the board?

Yes