Marlin 2.0 Auto Leveling Problem

Hi guys,

I´m trying to update my HEVO printer to marlin 2.0 but every time I use the autolevel function, the printer basically only homes every axis.
I am using Bilinear autoleveling (didnt work with linear either) and I´m using a fix mounted probe (deployable microswitch).
Can someone please tell me whats going on, i´ve been looking everywhere but found no one with this problem

If you post your Bed size and the location of the nozzle from the proximity sensor using Marlins offset parameters.

Then upload your Configuration.h file to a share program like google drive and post a link here.

I will give it a look to see if I can determine why!!!

Bed Size: X=200 Y= 195 (printhead can´t go further back)
Offset: X=45 Y=20
Configuration.h:
https://www.dropbox.com/sh/ndqphg3vhvu3u3j/AAB5fZW9IbqrAvCsJi9P0nGta?dl=0

Thank you !

After looking found these could be tested your end.

#define NOZZLE_TO_PROBE_OFFSET { 43, 20, 0 }

#define X_BED_SIZE 200
#define Y_BED_SIZE 195

#define X_MAX_POS 200
#define Y_MAX_POS 195
#define Z_MAX_POS 200 // ?

I would have more grid points per dimension. Using 6 X 6 myself

and Add this line

#define RESTORE_LEVELING_AFTER_G28 // So you do not have to level before every print.

I have tried your settings and it still doesn´t work. I´ve tried G29 in pronterface and it gives me this answer:
SENDING:G29
? (L,R,F,B) out of bounds.

Maybe it´s because my sensor is too far from the nozzle ?
Regarding the Bed size and max Pos: I am using a CoreXY printer and the Max pos is therefore larger than the bed. The printhead has to move about 5-10mm before it can print on the bed and it has about 5-10mm more travel after the bed.

I tried setting the nozzle offset to x=20 and y=0, with no result, so seems like the nozzle offset must be ok

Your offset is wrong, post the error message exactly.

If i G29 trough pronterface it tells me exactly that:
SENDING:G29
? (L,R,F,B) out of bounds.

When I started Out used these lines of code to adjust my Proximity Sensor to work.
These are a modified Code from Marlin 1.1.9BF to work with Marlin 2.
Adjusted them with your offset for you to try.


// The size of the print bed
#define X_BED_SIZE 200
#define Y_BED_SIZE 195

// 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 210
#define Y_MAX_POS 195
#define Z_MAX_POS 210 // do not know your max Z Height you may want to adjust.

#define GRID_MAX_POINTS_X 6
#define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X

// Set the boundaries for probing (where the probe can reach).
// setup for "Enter Your Sensor Here"
#define LEFT_PROBE_BED_POSITION MIN_PROBE_EDGE + 10
#define RIGHT_PROBE_BED_POSITION (X_BED_SIZE - (MIN_PROBE_EDGE + 10))
#define FRONT_PROBE_BED_POSITION MIN_PROBE_EDGE + 15 // 8 For Your Sensor
#define BACK_PROBE_BED_POSITION (Y_BED_SIZE - (MIN_PROBE_EDGE)) // + 10 For Your Sensor

My Numbers Marlin 2.0 alpha

Code:

---

#define NOZZLE_TO_PROBE_OFFSET { 0, 25, -0.5 }

// The size of the print bed
#define X_BED_SIZE 220
#define Y_BED_SIZE 270

// Travel limits (mm) after homing, corresponding to endstop positions.
#define X_MAX_POS X_BED_SIZE
#define Y_MAX_POS Y_BED_SIZE
#define Z_MAX_POS 185

  // Set the number of grid points per dimension.
  #define GRID_MAX_POINTS_X 6
  #define GRID_MAX_POINTS_Y 6

  // Remarked Out in newer versions Marlin
  // Set the boundaries for probing (where the probe can reach).
  #define MIN_PROBE_EDGE_LEFT MIN_PROBE_EDGE + 10
  #define MIN_PROBE_EDGE_RIGHT (X_BED_SIZE - (MIN_PROBE_EDGE + 10))
  #define MIN_PROBE_EDGE_FRONT MIN_PROBE_EDGE + 15 // 28 For SN04-N and 15 for for TL-W3MC2
  #define MIN_PROBE_EDGE_BACK (Y_BED_SIZE - (MIN_PROBE_EDGE)) // + 15 For SN04-N and nothing for TL-W3MC2

---

I´ve tried your code:

#define LEFT_PROBE_BED_POSITION MIN_PROBE_EDGE + 10
#define RIGHT_PROBE_BED_POSITION (X_BED_SIZE - (MIN_PROBE_EDGE + 10))
#define FRONT_PROBE_BED_POSITION MIN_PROBE_EDGE + 15 // 8 For Your Sensor
#define BACK_PROBE_BED_POSITION (Y_BED_SIZE - (MIN_PROBE_EDGE)) // + 10 For Your Sensor

But it gives me an error message, maybe it´s called differently in 2.0
https://ssl.gstatic.com/ui/v1/icons/...s/cleardot.gif

They did Update this Code!!

// Set the boundaries for probing (where the probe can reach).
#define MIN_PROBE_EDGE_LEFT MIN_PROBE_EDGE + 10
#define MIN_PROBE_EDGE_RIGHT (X_BED_SIZE - (MIN_PROBE_EDGE + 10))
#define MIN_PROBE_EDGE_FRONT MIN_PROBE_EDGE + 8 // +8 For Your Sensor
#define MIN_PROBE_EDGE_BACK (Y_BED_SIZE - (MIN_PROBE_EDGE)) // + 33 For Your Sensor

So Sorry... Mistake
This is for the Newer versions of Marlin above alpha

I solved it now by switching to Marlin 1.1.9 and doing this:

1. Delete everything in ArduinoData folder except preferences.txt (somehow i didn't get the correct error messages previously)
2. Move the probing boundaries inward.

Seems like the problem really was the probing edges being too far out, thanks for your help!

You are welcome.

If you need any other help Post.