Both Z axis steppers are moving the oposite direction

unf0rg0tt3n

Hi guys,

I having a hard time problem solving, but I am getting there.
Just fixed my end stopping but;

When homing Z to Z min
Stepper Z1 and stepper Z2 are spinning towards each other, result is that the right side is going up and left is going down.
from the start it wanted to set Z home to the top so I inverted it:

#define X_ENABLE_ON 1
#define Y_ENABLE_ON 1
#define Z_ENABLE_ON 1
#define DISABLE_X 0
#define DISABLE_Y 0
#define DISABLE_Z 0
#define DISABLE_E 0
#define INVERT_X_DIR 1
#define INVERT_Y_DIR 1
#define INVERT_Z_DIR 1
#define X_HOME_DIR -1
#define Y_HOME_DIR -1
#define Z_HOME_DIR -1
#define X_MAX_LENGTH 200
#define Y_MAX_LENGTH 200
#define Z_MAX_LENGTH 180

What is going on and how is this fixable?

Thanks!

RAyWB

just rotate the plug of one z- motor 180°

unf0rg0tt3n

RAyWB said:

just rotate the plug of one z- motor 180°

does it matter which one?

RAyWB

turn the one which is spinning the wrong direction

unf0rg0tt3n

RAyWB said:

turn the one which is spinning the wrong direction

Thanks!
That works now :)

still got lots of issues, such as:
- Nothing is heating; Decoupled error.
- My max Y and max X endstops arent functioning for some reason.
- when homing the X carriage is crashing on the left side.

How to fix this stuff? there aren't any manuals or tutorials for this kind of stuff.

RAyWB

first of all some basics:

front left is xmin, ymin

z-homing shortest distance from bed to nozzle is z-min

so - when homing the X carriage is crashing on the left side.

homing direction is set to xmin.... max x endstop is useless for that

if you tell us what kind of printer you build it is easier to help.

unf0rg0tt3n

RAyWB said:

first of all some basics:

front left is xmin, ymin

z-homing shortest distance from bed to nozzle is z-min

so - when homing the X carriage is crashing on the left side.

homing direction is set to xmin.... max x endstop is useless for that

if you tell us what kind of printer you build it is easier to help.

I am modifying the Wanhao duplicator I3 prusa.

I have put everything back as it was, except of the X carriage, which is replaced; but the endstop isn't.
Will it also be usefull to post my configuration.h
For reference in printer dimensions I used:

The endstop for Z minus is working though, Only the Y-MAX and X-MAX aren't working.

My config can be viewed here, to keep the post a little clean.

RAyWB

change these to 1 instead of -1

#define X_HOME_DIR -1
#define Y_HOME_DIR -1

unf0rg0tt3n

now X is going to the right and stops. Then Y is moving back and crashes to the back. Z minus is working properly. My endstops are connected to:
X - max
Y - max
Z - min

RAyWB

so rotate connector of y motor, that should work

edit:
stop

direction of movement is correct? just endstop doesn´t trigger

unf0rg0tt3n

As the one I had to rotate for the Z motor ?

RAyWB

not shure at the moment, i edited previous answer
direction of movement is correct? just endstop doesn´t trigger

unf0rg0tt3n

Yes. Directions are correct.
Except of X which is moving to the right instead of original, but X is actually triggering now.
So I have to rotate the endstop to let it trigger on X-min.

The endstops aren't triggering.
It's late where I life, so I can start modding after approx 4 hours of sleep and another 9 of work :neutral:

RAyWB

ok , same here ;-)
i`m back at around 6PM CEST

unf0rg0tt3n

Awesome! Go Europe! Thanks for all your help this far, really appriciate it :)

RAyWB

As there seem to be some more Problems we should see what we have actually...first of all place x-carriage and bed each on halfway.what happens when you move x+ ? is it moving right or left ?what happens when you move y+ ? is it moving Forwards or backwards?you wrote z-homing to min is ok so i guess moving z+ makes movement upwards.
with this Information we can start searching :-)btw, do you have a Display installed?

unf0rg0tt3n

X is moving to the right
Y is moving backwards
Z is moving upwards

Z homing is moving upwards, so I need to reverse that

I also have my display installed.

MartinH

With the Y endstop at the back of the bed, that is a Ymin endstop.
So X0 Y0 puts the nozzle at the Front left corner of the bed

RAyWB

Right, i overlooked that last night.so connect the y endstop to y-min Input and reconfigure endstopalso rotate x-motor and both z-Motor connectors by 180 degrees andChange the Settings to:#define INVERT_X_DIR 0
#define INVERT_Y_DIR 0
#define INVERT_Z_DIR 0
#define X_HOME_DIR 1
#define Y_HOME_DIR -1
#define Z_HOME_DIR -1and do the following again so we can continue this eveningwhat happens when you move x+ ? is it moving right or left ? (should move right)what happens when you move y+ ? is it moving Forwards or backwards? (should move forwards)moving z+ makes movement upwards and homing should move downwards now.

unf0rg0tt3n

MartinH said:

With the Y endstop at the back of the bed, that is a Ymin endstop.
So X0 Y0 puts the nozzle at the Front left corner of the bed

Aha, that's why the bed is crashing at the back.