Bltouch gets triggered but z Motor doesnt stop

[mpm1396]

Hello Guys, i am Using marlin 1.1.8. BL Touch lights up red when triggered but z Motor doesnt stop when homing. All other endstops are working. Printer: anycubic prusa i3. Trigorilla Board arduino 2560 ramps.

EDIT: Fixed polarity for z endstop on bltouch was wrong

[ghost]

Has it ever worked before on your printer or is this the initial situation?

[ghost]

Consider reading through the neighboring issue, it contains some tips that might help #12947

[mpm1396]

well guys I fixed it kinda. The Problem was the polarity of the sensor wires was reversed. Next Problem is when I start the print it starts somewhere on the left side of the bed not in the middle. Auto bed leveling and homing works. When I start pronterface and press the red x y Center button it runs into the x and y endstop. Here is my config conf.zip

[mpm1396]

Here is my start gcode maybe it is important gcodestart.zip

[boelle]

you are missing this define

//#define BED_CENTER_AT_0_0

remove //

what version of marlin?

[mpm1396]

Marlin 1.1.8 . First post is already shortened :D

[mpm1396]

done

[mpm1396]

I did defined it, but I am getting an error in Arduino ide "static assertion failed: RIGHT_PROBE_BED_POSITION can't be reached by the Z probe."

[boelle]

try #define RIGHT_PROBE_BED_POSITION 110 or a little less

[mpm1396]

I used 100 now I get static assertion failed: BACK_PROBE_BED_POSITION can't be reached by the Z probe.

[boelle]

ohhh... now i remember things :-D with #define BED_CENTER_AT_0_0

the center is 0 and one direction is positive number and other direction is negative

so you will most likely also have to adjust these

// The size of the print bed

define X_BED_SIZE 200

define Y_BED_SIZE 200

// Travel limits (mm) after homing, corresponding to endstop positions.

define X_MIN_POS 0

define Y_MIN_POS 0

define Z_MIN_POS 0

define X_MAX_POS X_BED_SIZE

define Y_MAX_POS Y_BED_SIZE

define Z_MAX_POS 160

[boelle]

if X and Y ednstop is precise at edge of bed i would use:

define X_MIN_POS -100

define Y_MIN_POS -100

define X_MAX_POS 100

define Y_MAX_POS 100

[mpm1396]

So should I comment the bed centre 0 0 out again?

[boelle]

nope, that one stays as is

[boelle]

i use 0,0 down in the lower left corner and its a long time since i have had a setup with 0,0 in center and i'm 40 year old so not that fast at remember things

[mpm1396]

Configuration.zip I did what you said and still gettin error: static assertion failed: RIGHT_PROBE_BED_POSITION can't be reached by the Z probe.

[boelle]

just me old

define RIGHT_PROBE_BED_POSITION 110

needs to be less than 100, but i cant remember how much lees

define BACK_PROBE_BED_POSITION 190

also needs to be less than 100

define FRONT_PROBE_BED_POSITION 20

can be closer to 100

remember than some of the 100's need to be negative 100

[boelle]

but when you home the printer now it will be very clear which of the 100's that need to be negative

[mpm1396]

When I home the Printer it goes to x 25 y 93 z 16.7

[boelle]

the reason i dont know which of the 100's that need to be negative is that i dont know if right side is the side it homes to

and if front or back is where Y homes

[boelle]

x 25 y 93 z 16.7

that makes sense

define X_PROBE_OFFSET_FROM_EXTRUDER 75 // X offset: -left +right [of the nozzle]

define Y_PROBE_OFFSET_FROM_EXTRUDER 7 // Y offset: -front +behind [the nozzle]

define Z_PROBE_OFFSET_FROM_EXTRUDER -1.7 // Z offset: -below +above [the nozzle]

25+75 = 100

93 + 7 = 100

i cant remember the logic on Z

[boelle]

how do you home? G29?

[mpm1396]

with the screen. prepare -- > autohome

[boelle]

its like it homes the probe

try send G28 and see if that makes any difference

[mpm1396]

no difference with G28

[boelle]

and after G28

try send G0 X0 Y0

[boelle]

what we want to figure out is where printer thinks it is so we can change config and get it to be where we want it

how close to center was it after G28? and did it go to endstop first

[mpm1396]

so with g28 it homes somewher on the left side. If I send G0 X0 Y0 it runs into the Y endstop.

[boelle]

with G28 it should touch the endstops

do it touch the endstops?

[boelle]

G28 X if you only want to try and home X

[mpm1396]

Yes with g28

[boelle]

oki.... and it stays at the endstop after G28 ?

[boelle]

and after home how far is the nozzle from the bed edge?

[boelle]

is this your printer? http://www.anycubic3d.com/products/show/1048.html

[mpm1396]

It stays at the x and y endstop but it moves up in z . After Home the nozzle is a few mm away

[boelle]

oki, at least we are close to something that might work

is your printer the Mega on the link above?

[boelle]

or is it this one? https://www.amazon.co.uk/Anycubic-Desktop-Printer-Assemble-Filament/dp/B01K6P5R74

[boelle]

what is strange is that with G28 it should home and be at -100 for X and Y

Try send G28 and then M114 and tell me what comes on serial

i'm looking at your latest config to see if we made a mistake

[mpm1396]

Its this one http://m.anycubic3d.com/support/show/594036.html Its the prusa i3 Kit with Ultrabase.

[mpm1396]

The config ist from Here. https://www.thingiverse.com/groups/anycubic-prusa-i3/forums/general/topic:26690

[boelle]

config looks ok

Try send G28 and then M114 and tell me what comes on serial

[mpm1396]

so now i am back. I did g28 and M114. this is the Output X:25.00 Y:93.00 Z:16.70 E:0.00 Count X:2000 Y:7440 Z:6680

[boelle]

that is strange... can you attach configuration.h again as zip

and make sure its not an old copy :-D i have made that mistake many times

[mpm1396]

I just reflashed this: Configurationf.zip this is still the Output of M114 X:25.00 Y:93.00 Z:16.70 E:0.00 Count X:2000 Y:7440 Z:6680

[boelle]

you did not change these:

// Travel limits (mm) after homing, corresponding to endstop positions.

define X_MIN_POS 0

define Y_MIN_POS 0

define Z_MIN_POS 0

define X_MAX_POS X_BED_SIZE

define Y_MAX_POS Y_BED_SIZE

define Z_MAX_POS 160

[boelle]

you did not change this one either

//#define BED_CENTER_AT_0_0

[boelle]

but that still does not explain why X is at 25 after home

@thinkyhead can just shine the light of god wisdom on this one?

[mpm1396]

I uncommented and changed x_min_pos to -100 y min -100 x max 100 y max 100 but I get the error: static assertion failed: RIGHT_PROBE_BED_POSITION can't be reached by the Z probe.

[boelle]

it's hard to help if you make changes back without telling, so make it look like this

define X_MIN_POS -100

define Y_MIN_POS -100

define Z_MIN_POS 0

define X_MAX_POS 100

define Y_MAX_POS 100

define Z_MAX_POS 160

define LEFT_PROBE_BED_POSITION 100

define RIGHT_PROBE_BED_POSITION -100

define FRONT_PROBE_BED_POSITION 100

define BACK_PROBE_BED_POSITION -100

define BED_CENTER_AT_0_0

but one Q, when you home does x move to left or right?

[mpm1396]

I changed it to your values but I cant upload it because I get the error static assertion failed: LEFT_PROBE_BED_POSITION must be less than RIGHT_PROBE_BED_POSITION.