Delta Kossel K800XL - calibration Z - Crash/Reboot printer

Hello,

I have a Kossel K800XL (no name chinise copy)
I'm facing this issue :

When I use calibrate Z on my Delta. it start to go down and stop around 10 cm after home (g28) and printer reboot/crash.
my card is an mega 2560 + ramp 1.4 + A4988 (not sure for TMC)
Marlin is Marlin-bugfix2650-1.1.x

If I use G29, it's working
If I go up to the 0 with Gcode, it's working
If i use auto bed leveling from printer itself, it's working.


IF needed I can make a video
and if needed I can provide configuration.H and adv.h file
if You need something more I did not provide say me i will provide it.


The second thing I encounter is less problematic but maybe it's connected :
When head is mouving on X and/or Y axe, sometime there is quick jump in the move.

it's not loss of theeth on gear of motor and the band remain hard on all 3 tower.
Same as other I can make a video if neccessary.

Thank for your assistance

DGils

Have you checked that the probe triggers properly with M119 when you press ok it with your finger? [marlinfw.org]

Yes i check this too.
all 4 trigger are working fine.
when I make a bed levelling with G29 and from printer menu it's working fine.
Printer reboot without trigger do not touch anything during the going down process

What happens if you manually trigger the probe with your hand during calibration? I'm thinking like half way between the bed and the probe when homed.

I just checked.
it does not take count of it, it seem to go down always 16cm quickly first and slowly and printer reboot

It should have stopped when your hand triggered the probe. I haven't heard of "Marlin-bugfix2650-1.1.x". In the releases I used, there would be a "PROBE FAIL" or like message, not a reboot. I would try Marlin 1.1.9.1 [github.com] If your current config is not compatible you could try the Kossel XL config from Marlin as a starting place [github.com]

oki, I took marlin 1.1.9.1 + config and config adv from kosell XL.
grrrr, now the homing act strangelly. only 1 motor going down as it should goes up for homing....arg

Try flipping the connector for the motor (the one going backwards) around on the RAMPS board.

i added 2650 in the name
real name is :
Marlin-bugfix-1.1.x
ok I dl marlin 1.1.9.1 with your link.
Problem in menu there is no more calibrate Z option after auto home...

Are you using the Kossel XL example config? If so you probably need to uncomment DELTA_AUTO_CALIBRATION in Configuration.h

it's enabled :

// Enable DELTA kinematics and most of the default configuration for Deltas
#define DELTA

#if ENABLED(DELTA)

// Make delta curves from many straight lines (linear interpolation).
// This is a trade-off between visible corners (not enough segments)
// and processor overload (too many expensive sqrt calls).
#define DELTA_SEGMENTS_PER_SECOND 160

// Convert feedrates to apply to the Effector instead of the Carriages
#define DELTA_FEEDRATE_SCALING

// After homing move down to a height where XY movement is unconstrained
//#define DELTA_HOME_TO_SAFE_ZONE

// Delta calibration menu
// uncomment to add three points calibration menu option.
// See [minow.blogspot.com]
#define DELTA_CALIBRATION_MENU

// uncomment to add G33 Delta Auto-Calibration (Enable EEPROM_SETTINGS to store results)
#define DELTA_AUTO_CALIBRATION

// NOTE NB all values for DELTA_* values MUST be floating point, so always have a decimal point in them

#if ENABLED(DELTA_AUTO_CALIBRATION)
// set the default number of probe points : n*n (1 -> 7)
#define DELTA_CALIBRATION_DEFAULT_POINTS 4
#endif

That's strange. I looked at the code, the only things that I can see those menu items need are DELTA_CALIBRATION_MENU and that the axis is homed. Is it just Z that is missing or is X, Y, Center also missing?

all are missing

The best I can come up with is that the printer doesn't think it's homed. Have you checked the endstops with M119 since installing 1.1.9.1?

for information if I use config .h of the one I create the topic, I have the menu calibrate ... but I also have issue

Hello,

yes they are triggered


SENDING:M119
Reporting endstop status
x_max: open
y_max: TRIGGERED
z_min: open
z_max: open
>>> m119
SENDING:M119
Reporting endstop status
x_max: open
y_max: open
z_min: open
z_max: open
>>> m119
SENDING:M119
Reporting endstop status
x_max: TRIGGERED
y_max: open
z_min: open
z_max: open
>>> m119
SENDING:M119
Reporting endstop status
x_max: open
y_max: open
z_min: open
z_max: TRIGGERED
>>> m119
SENDING:M119
Reporting endstop status
x_max: open
y_max: open
z_min: TRIGGERED
z_max: open

maybe someone with a delta kossel... maybe not a xl can send me config + config adv file

There are a lot to choose from here [github.com]

if I change the height in marling it's not taken in count when I upload marlin in printer

Did you reset the EEPROM or load defaults?

I made an initialise eeprom
now i have menu move on axes XY and move on Z plus some other option but still not calibrate axes Z

oki,
what I have done, is this :
start with your marlin advise marlin1.1.9.1
use config+adv.h file
modify them as they do not integrate the minimum of delta setting....(none of all marlin have config.h setup for a delta....)
FOr info I try to dl config +adv h you provided me as a link, but there is no dl option, I need to copy them in a file and rename file.
initialise eeprom
G33 for delta calibration
M500 to save data.

as this is not acailable in majority of marlin and when available it reboot printer.

calibrate Z is made manually.


I try to simulate print of a cube 10mm without plastic
It seem to work, printer start from 0 and finish without error.

I find another issue
extrude motor is not turning but turning left/right movement, but I will open a new topic

even if not solved thank you for all advise and assistance on this issue

Hi, I also have a Delta and I also use Marlin 1.1.9.1. I'm new in the world of 3d printing but made a lot of progress by myself.

"modify them as they do not integrate the minimum of delta setting...." Did you tried to use the provided file (congif+adv.h) from Marlin that are already "mostly" preconfigured for Delta printer ? You can find them in the "exemple" folder--> Delta-->(the model you want).

I don't know if it may help you, but the fastest and more reliable way I found to calibrate my printer is this:

1) manually zero X,Y,Z axes (limit swtich activated) then mesure with a ruler from the nozzle tip to the bed and enter the Z_Height in donfig.h
2) uplaod in RAMPS, initialize from the LCD
3) Connect Repetiers-Host, hit "home" and after the sequence, I find the real zero with a paper. The remaining Z in Repetiers is substract from the initial Z_Height in Marlin and I update the Z Height in marlin.
4) I redo 2 and 3. If I get zero with the paper test, then I go to the next step.
5) From Repetiers, I "home", then from the LCD, I select auto calibration.
6) When finished, on the LCD in Delta settings, the is the new data about: Z_Height, Ex, Ey, Ez, Radius, Tx, Ty, Tz, Radius-Rod. I hit "save configuration"(I don't remember the real name), followed by "load config." from the LCD menu and change all the appropriate config in Marlin so it become permanent at every loading.
7) upload from Marlin with the new config, validate with what I've written on a paper.
8) I redo 3, but now I probe many place on the bed and adjust it manually so every probed place are "zeroed".
9) lunch a print.

If you still have problem with your config and config_adv, let me know and I'll send you a copy of the one I'm using.

Hello,

thank for information,

i have done as you said, but wanted to know why I encounter this issue.
So now I will say it's solved.

Problem is now I have extruder motor not turning.
I open a new post for this. with all what I already done
If you have good tips, like maybe inverting extruder 1 and 2 even if I do not have a second extruder...I take