Bed Map seems to not be working..

EGropp

I have an HE3D EI3 printer, this is a cartesian printer with 3 print nozzles, (i have removed the 2 outer nozzles and have it set to use only 1 extruder to try to simplify things)..

Here is what I have done so far
I have set the z-probe to home the nozzle (then slide a strip of thermal paper under the nozzle for distance).
I then disable the stepper motors and manually move the print head to each corner and adjust the bed leveling screws to get the same distance for the head in each corner.
After doing this, I re-home all axis and re check the distance with my thermal paper, moving the print head to each corner using the printer controls (not moving the z axis at all).
From here, i run a G32 S2 to set a bed map.
When I print, the first layer seems to not take into account the bed map as the layer height seems different between the front left corner and the right rear corner (the layer is much closer in the right rear than it is in the front left).
I thought the bed map was to account for minor discrepancies in the bed level?

Am i missing something or am i doing something incorrect?

Repetier

G32 does software rotation but assumes the bed is completely plane. If you have some bumps from heat or what ever you need distorion correction (G33) which you run AFTER G32 S2.

EGropp

When I issue a G33 after the G32 S2 runs, I get an unknown command.
This is using FIRMWARE_NAME:Repetier_0.92.9

EGropp

Nevermind, i think i found the answer in a different post, i need to recompile with distortion correction enabled.
Ive never compile the firmware for this machine, should prove an interesting experiment.

EGropp

Ok.. I now have the config files for the printer. When I load it into the config tool, there is no option for the distortion map, can I just add lines to the file and re-load it in the config tool to recimpile? Would the option show up?

MartinH

It is on the 'general'tab near the bottom, just under the circular bed diagram,
Dont use the 92.9 version, its too old now.
Use 1.0.2 https://www.repetier.com/firmware/v100/index.php<br/>this has many improvements especially in the levelling part.

EGropp

ok.. i thought i was getting this correct, when i try to upload the firmware, i get the error
"Temp_3_pin was not declared in this scope"
not sure where to look for this. i went over the config again and everything looks like its configured..

thoughts please??

Repetier

Not all boards have 4 thermistor inputs predefined (or have at all). Seems to be the case here. Just enter the analog number instead or analog channel for due. TEMP_3_PIN gets defined in pins.h in your boards section if it gets defined. Be aware that a analog input and a thermistor input are different! thermistor inputs are also analog but also have a 4.7K resistor in the schematic to make the voltage divider work.

EGropp

ok.. after several attempts, i was able to use Arduino version 1.0.2 to check the files that were sent by the manufacturer and seen that they "should" upload as they are. So i opened the config tool, left the firmware at .92 (just to try to get this to work), imported the config.h file and changed ONLY the distortion map, downloaded all of the files and tried to check them again in Arduino 1.0.2, now i get the same error about pin_3 not being defined.
What is different in the distortion map setting that would cause this?

Repetier

Distortion map does not use additional analog inputs. And the error this time is about the enable pin of the third extruder not being defined. What board are you using? Does it have 3 extruder sockets?

EGropp

I believe it is the ATmega2560 control board and RAMPS 1.4
There are 3 extruders and 3 sockets on the board
Here is a pics of the main board

Repetier

Ok, so selecting a RAMPS the error is correc. As you see there are only 2 extruder motor drivers. The third is therefore undefined and you also see it has only 3 thermistor inputs. The board is not prepared for 3 extruder natively, so no variables for this are preset in pins.h.

EGropp

Wouldn't the E2 motor and temp actually be the third extruder? The board shown in this pic just above the LCD interface.
Since the extruders start at #0, wouldn't Ext0 actually be #1, ext1 being #2 and ext2 be #3??

EGropp

where in pins.h would i find these variables? I am not familiar with programming these boards so i dont know what to change here to be correct.

EGropp

ok.. i changed the distortion map settings in the config.h file
there were 2 lines...
#define DISTORTION_CORRECTION 0 .. i changed to #define DISTORTION_CORRECTION 1
and
"distortionCorrection": "0", that i changed to "distortionCorrection": "1",

all other lines that mentioned distortion i left as they were

#define DISTORTION_CORRECTION_POINTS 5

#define DISTORTION_CORRECTION_R 100

#define DISTORTION_PERMANENT 1

#define DISTORTION_UPDATE_FREQUENCY 15

#define DISTORTION_START_DEGRADE 0.5

#define DISTORTION_END_HEIGHT 1

#define DISTORTION_EXTRAPOLATE_CORNERS 0

#define DISTORTION_XMIN 10

#define DISTORTION_YMIN 10

#define DISTORTION_XMAX 190

#define DISTORTION_YMAX 250

and

"distortionCorrectionPoints": 5,

"distortionCorrectionR": 100,

"distortionPermanent": "1",

"distortionUpdateFrequency": 15,

"distortionStartDegrade": 0.5,

"distortionEndDegrade": 1,

"distortionExtrapolateCorners": "0",

"distortionXMin": 10,

"distortionXMax": 190,

"distortionYMin": 10,

"distortionYMax": 250,

these were the only lines that mentioned distortion in the config.h file.
i recompiled and uploaded. there were no errors in the upload.

ran a g32 s2 (seemed to work fine)
then i ran
g33
and i still get
Unknown command:N415 G33

am i still missing a bit?

Repetier

You also need FEATURE_Z_PROBE but that is also needed for G32 which works.

#if DISTORTION_CORRECTION case 33: { if(com->hasL()) { // G33 L0 - List distortion matrix Printer::distortion.showMatrix(); } else if(com->hasR()) { // G33 R0 - Reset distortion matrix Printer::distortion.resetCorrection(); } else if(com->hasX() com->hasY() com->hasZ()) { // G33 X<xpos> Y<ypos> Z<zCorrection> - Set correction for nearest point if(com->hasX() && com->hasY() && com->hasZ()) { Printer::distortion.set(com->X, com->Y, com->Z); } else { Com::printErrorFLN(PSTR("You need to define X, Y and Z to set a point!")); } } else { // G33 Printer::measureDistortion(); } } break; #endifAs you see the implementation of G33 only requires DISTORTION_CORRECTION to be non zero. With that no unknown command should appear.

EGropp

It’s almost as if the upload is not making any changes.
How do I know if the upload made any actual changes to the printer?

Repetier

Send M115 and it tells you when it was compiled in log. It is in the first line of response I think.

EGropp

is it possible that this was originally compiled to not include all messages?
When I run M115 this is what I get

Send: N12128 M115*46Recv: ok 12128Recv: FIRMWARE_NAME:Repetier_0.92.9 
FIRMWARE_URL:https://github.com/repetier/Repetier-Firmware/ 
PROTOCOL_VERSION:1.0 MACHINE_TYPE:Mendel EXTRUDER_COUNT:3 
REPETIER_PROTOCOL:3Recv: Printed filament:873.28m 
Printing time:10 days 17 hours 29 
minRecv: PrinterMode:FFF

Can the issue of the distortion map be caused by the version being at .92.9 and not the latest?
I tried to use the firmware tool to get the new version and compile it with the settings, but i get the Temp_3 error
I have no idea how to modify the pins.h file to make this compile correctly so i can get the new 
firmware uploaded and get back on track here.

Any direction would be most appreciated.

MartinH

Don't know if this helps.
The board pictured above is a 3DYMY RAMPSPLUS2
Original Repetier firmware can be found here https://github.com/3dymy/RampsPlus2