Bed mesh at different temps

aceranic · 27 Mar 2025, 10:48

Bed mesh/height changes at different temperatures, ie. 50, 70, 100 for different materials.
For each temp that I use I saved mesh under different name, ie. heightmap50.csv.

Can I call different heightmap from start gcode in Orca based on the filament in use?

So normall call is G29 S1 and will call heightmap.csv and G29 S1 P"heightmap50.csv" would call for 50degC.

Does this make sense to use?

jay_s_uk · 27 Mar 2025, 11:02

@aceranic you can easily do this
I use a custom start macro thats called by the slicer
this is that i have in orcaslicer

M98 P"start_print.g" A[bed_temperature_initial_layer_single] B"[filament_type]" C[nozzle_temperature_initial_layer] D[nozzle_diameter]

You could then have, in start_print.g

if param.B = "ABS" 
	G29 S1 P"heightmap50.csv"

and so on.
My example start_print.g is here https://github.com/TeamGloomy/Troodon-V2/blob/improved/Config/sys/start_print.g

danzaywer · 28 Mar 2025, 14:25

I use a similar approach, I scan at varous temp and with different plate(steel and glass),with a complex bed.g called by G32.
I put this control in homez.g and do it after bed temp settled .
in orca start I have M190 followed by G28.

....
if {fileexists(floor(heat.heaters[0].active)^var.plate^".csv")}
	var map={(floor(heat.heaters[0].active)^var.plate^".csv")}
	if var.verbose 
		echo "load "^var.map;
	G29 S1 P{var.map};
else ;
	if var.verbose 
		echo "no file .csv! load heightmap.csv"
	G29 S1;

aceranic · 28 Mar 2025, 22:23

Isnt it easier, in Orca, to add for each material in Start Gcode a line to call a specific saved map?

CabalSoul · 6 Apr 2025, 16:47

@aceranic

I'm loading the PID values of the Nozzle and Bed, the Bedmeshing depending on Temperature and Bed Type on Print Start automatically.
It my seem like overkill but i prefer to automate as much as possible. My meshing seems consistent and varies just with Temperature. So ican mesh with higher resolution and start my prints faster.

I'm using Orca slicer to send Bed Temperature and Print temperature to my macro called PrintSetup that is poart of my start code

Start Code

M190 S{first_layer_bed_temperature[0]-5};
M104 S[nozzle_temperature_initial_layer] ; Wait initial layer temp	
M109 S[nozzle_temperature_initial_layer] ; Wait for Bed Temp

M98 P"/macros/PrintSetup" B[bed_temperature] H[first_layer_temperature];

This Macro loads the coresponding Mesh for the defined Bedplate, and with the temperatures it also loads the right PId tune information. You can also define Offsets if your Probe has drift wiht different Temperature.

; 0=Bambulab Square BS
; 1=Textured Round  TR
; 2=Smooth Round    SR
var BED_Type = 0    ;define Bed plate Type
var BED_T = {param.B};
var EXT_T = {param.H};
var Probe_height = 0.36   ; determined wiht G30-S1 after manually leveling wiht paper 



;Pinda Bed Levelsensor
M558 P5 C"^exp.e2stop" H2 F460 T9000 A3 K0
G31  P500 X0 Y-31 Z{var.Probe_height}  
	
M106 P2 S30
M703
T0


if var.BED_T < 65
	M307 H0 R0.383 K0.618:0.000 D1.11 E1.35 S1.00 B0		;BED PID 58 !!
	G31 Z{var.Probe_height + 0}	                            ;Pinda  - is higher, + is lower
	G28														;Home
	G1 X0 Y0 Z5 F12000										;move to Probe location
	G30														;Probe
	
	if   var.BED_Type = 0
		G29 S1 P"BS60.csv"						
	elif var.BED_Type = 1
		G29 S1 P"TR60.csv"	
	elif var.BED_Type = 2
		G29 S1 P"SR60.csv"							
	

elif var.BED_T < 75
	M307 H0 R0.367 K0.732:0.000 D0.98 E1.35 S1.00 B0        ;PID 70°C
	G31 Z{var.Probe_height + 0}	                           	;Pinda - is higher, + is lower
	G28														;Home
	G1  X0 Y0 Z5 F6000										;move to Probe location
	G30														;Probe
	
	if   var.BED_Type = 0
		G29 S1 P"BS70.csv"						
	elif var.BED_Type = 1
		G29 S1 P"TR70.csv"	
	elif var.BED_Type = 2
		G29 S1 P"SR70.csv"	


elif var.BED_T < 85
	M307 H0 R0.367 K0.732:0.000 D0.98 E1.35 S1.00 B0        ;PID 70°C make one for 80
	G31 Z{var.Probe_height + 0}	                          	;Pinda - is higher, + is lower
	G28														;Home
	G1  X0 Y0 Z5 F12000										;move to Probe location
	G30														;Probe
	
	if   var.BED_Type = 0
		G29 S1 P"BS80.csv"						
	elif var.BED_Type = 1
		G29 S1 P"TR80.csv"	
	elif var.BED_Type = 2
		G29 S1 P"SR80.csv"	
	
elif var.BED_T < 95
	M307 H0 R0.333 K0.400:0.000 D0.87 E1.35 S1.00 B0		;85°C
	G31 Z{var.Probe_height + 0}	                         	;Pinda - is higher, + is lower
	G28														;Home
	G1  X0 Y0 Z5 F12000										;move to Probe location
	G30														;Probe	
	
	if   var.BED_Type = 0
		G29 S1 P"BS90.csv"						
	elif var.BED_Type = 1
		G29 S1 P"TR90.csv"	
	elif var.BED_Type = 2
		G29 S1 P"SR90.csv"	
	
elif var.BED_T < 105
	M307 H0 R0.282 K0.306:0.000 D1.30 E1.35 S1.00 B0 		;110°C
	G31 Z{var.Probe_height + 0}                         	;Pinda  - is higher, + is lower
	G28														;Home
	G1  X0 Y0 Z5 F12000										;move to Probe location
	G30														;Probe

	if   var.BED_Type = 0
		G29 S1 P"BS100.csv"						
	elif var.BED_Type = 1
		G29 S1 P"TR100.csv"	
	elif var.BED_Type = 2
		G29 S1 P"SR100.csv"	
	
elif var.BED_T < 115
	M307 H0 R0.282 K0.306:0.000 D1.30 E1.35 S1.00 B0 		;110°C
	G31 Z{var.Probe_height + 0.038}	                     	;Pinda  - is higher, + is lower +0.038
	G28														;Home
	G1  X0 Y0 Z5 F12000										;move to Probe location
	G30														;Probe
	
	if   var.BED_Type = 0
		G29 S1 P"BS110.csv"						
	elif var.BED_Type = 1
		G29 S1 P"TR110.csv"	
	elif var.BED_Type = 2
		G29 S1 P"SR110.csv"	
	
elif var.BED_T < 125
	M307 H0 R0.282 K0.306:0.000 D1.30 E1.35 S1.00 B0 		;110°C
	G31 Z{var.Probe_height + 0.038}		                    ;Pinda  - is higher, + is lower +0.038
	G28														;Home
	G1  X0 Y0 Z5 F12000										;move to Probe location
	G30														;Probe
	
	if   var.BED_Type = 0
		G29 S1 P"BS120.csv"						
	elif var.BED_Type = 1
		G29 S1 P"TR120.csv"	
	elif var.BED_Type = 2
		G29 S1 P"SR120.csv"	

else 
	echo "Bed Temp Setting Out of Bounds"
	

if var.EXT_T  < 195
		M307 H1 R4.434 K0.887:0.000 D5.41 E1.35 S1.00 B0 V24.0 ;190°C NEW
		echo "Print Temp Setting:  ", var.EXT_T , "°C      PID @190°C loaded"
if var.EXT_T  < 205
		M307 H1 R3.883 K0.339:0.000 D7.06 E1.35 S1.00 B0 V24.3 
		echo "Print Temp Setting:  ", var.EXT_T , "°C      PID @200°C loaded"
elif var.EXT_T < 225
		M307 H1 R3.899 K1.407:0.000 D6.62 E1.35 S1.00 B0 V24.3 ;200°C 
		echo "Print Temp Setting:  ", var.EXT_T , "°C      PID @200°C loaded"
elif var.EXT_T < 235
		M307 H1 R3.990 K2.754:0.000 D6.24 E1.35 S1.00 B0 V24.1;230°C NEW
		echo "Print Temp Setting:  ", var.EXT_T , "°C      PID @230°C loaded"
elif var.EXT_T < 245
		M307 H1 R4.538 K2.346:0.000 D4.59 E1.35 S1.00 B0 V23.8 
		echo "Print Temp Setting:  ", var.EXT_T , "°C      PID @240°C loaded"
elif var.EXT_T < 265
		M307 H1 R3.978 K0.322:0.000 D5.90 E1.35 S1.00 B0 V23.9
		echo "Print Temp Setting:  ", var.EXT_T , "°C      PID @250°C loaded"
elif var.EXT_T < 285
		M307 H1 R4.047 K1.118:0.000 D5.47 E1.35 S1.00 B0 V24.3
		echo "Print Temp Setting:  ", var.EXT_T , "°C      PID @270°C loaded"
elif var.EXT_T < 295
		M307 H1 R4.308 K8.893:0.000 D5.01 E1.35 S1.00 B0 V24.3 
		echo "Print Temp Setting:  ", var.EXT_T , "°C      PID @280°C loaded"
else 
	echo "Print Temp Setting Out of Bounds"

Maybe you can adapt it your needs