After Micro swiss DD upgrade,Extruder skips steps
-
I have this :
M308 S1 P"e0temp" Y"thermistor" T100000 B3950 ; configure sensor 1 as thermistor on pin e0temp M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1 M143 H1 S300 ; set temperature limit for heater 1 to 300C M307 H1 B0 S1.00NTC-Thermistor 100 K 3950
Thermistor Cartridge: Size: 1.25mmx2.0mm glass bead High accuracy: 1% Resistance value at 25°C=100K Wiring length: 1m / 39.3" Operating temperature range: -40 ° C + 300 ° C Rated power: 45MW -
yeah that is why i dont like B3950 thermistors. the reported temperature can be way off.
-
@Veti so the Problem is the thermistor?
So i will wait the New one
-
most likely yes.
-
i have installed the new thermistor but i can print pla with 235°C i dont now why
-
@lui2004
its not uncommon for the 3950 to be off by 20Cdid you change the beta and C value?
-
i have installed the Semitec 104GT-2 today
my config for this :
M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin e0temp M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1 M143 H1 S280 ; set temperature limit for heater 1 to 300C M307 H1 B0 S1.00 -
thats the thermistor: 104NT-4-R025H42G Semitec Thermistor 100K - NTC
i checked the datasheet and the B Value seems to be: 4267 ?
datasheet:
https://reprapworld.de/datasheets/NTCThermistor_NT-461415.pdf -
@lui2004 said in After Micro swiss DD upgrade,Extruder skips steps:
i checked the datasheet and the B Value seems to be: 4267 ?
B and C change the algorithm to steinhart hart. its more accurate.
see the table
-
the config is also ok like that ?
-
yes, but its still strange that you need 235 to print pla.
do you have a steel nozzle?
-
yes, hardened steel with Micro Swiss all metal hotend
-
@lui2004 ]
ok steel nozzle a very bad for printing pla. the thermal transfer is very low.
unless you are printing abrasive materials, a brass nozzle is a lot better.
or if you want a much better nozzle, there are copper plated nozzles
https://de.aliexpress.com/item/4000007458595.html -
i print only PLA and Petg
-
then there is no need for a steel nozzle
-
Ok i have a cooper plated, i will change now and test it
-
I have changed the nozzle and Calibrated all, all works fine now.
I can print PLA with 200°C! Thanksi have another question i have Bed compensation in use: none is this normal ? i thin it should be mesh or not ?
if you need config.g or slicer start.gcode or anything else tell me i will post it
-
for that your G29 needs to be executed after the G28 in the slicer start code
-
my start.gcode looks like that:
T0 G90 ;absolute positioning M107 ;start with the fan off M83 ; extruder relative mode M104 S[first_layer_temperature] ; set extruder temp M140 S[first_layer_bed_temperature] ; set bed temp ; Homing & leveling G28 M561 ; Clear any bed transform that might be in place G1 X73 Y106 F4000 ; Go to bed center before probing ;Wait for Temperature M109 S[first_layer_temperature] ; wait for extruder temp M190 S[first_layer_bed_temperature] ; wait for bed temp G30 ; Find the Z=0 G29 S1 ; Load the height map from the last time I used G29 to probe the bed. G1 X5 Y10 Z0.2 F3000 ; get ready to prime G92 E0 ; reset extrusion distance G1 X160 E15 F600 ; prime nozzle G1 X180 F5000 ; quick wipe -
this should activate the mesh compensation
do you have a heightmap it can load?
