After Micro swiss DD upgrade,Extruder skips steps

[lui2004]

@Phaedrux said in After Micro swiss DD upgrade,Extruder skips steps:

benchy hull line

i will test it now with PLA and 100% part fan

[lui2004]

Hi

i have breake the cable of my thermistor

but i have a new pne here:

specs:

NTC-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
 
 

how i set it in my config.g ?

i have it like 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 S1.00           
 

is it ok ?

[Veti]

@lui2004

yes

B3950 thermistors are bit hit and miss.
Do not assume that when you are setting your temperature to 200C now that its the same temperature as before.

[lui2004]

@Veti said in After Micro swiss DD upgrade,Extruder skips steps:

B3950 thermistors are bit hit and miss.
Do not assume that when you are setting your temperature to 200C now that its the same temperature as before.

ok !

which thermistor you prefer ?

[Veti]

Semitec 104GT-2 are better defined,

e.g.
https://de.aliexpress.com/item/32816085854.html

i personally use a pt1000 but i dont think they exist in the glass bulb that you want.

[lui2004]

@Veti said in After Micro swiss DD upgrade,Extruder skips steps:

Semitec 104GT-2

ok is this the correct one :

https://reprapworld.de/products/extruder/extruder_parts/thermistors/104nt_4_r025h42g_semitec_thermistor_100k_ntc/?f=gs&f=gs&mkwid=sPXPyq0nv_dc|pcrid|191801720052|pkw||pmt||slid||prid|62&pgrid=50293152428&ptaid=pla-298340505777&gclid=CjwKCAiAiML-BRAAEiwAuWVgggb4ckwj-aGLGhTIkNoxYfI1v3Fr-CB8v40s1W2gqoAAvGfc1Hr1jRoC4CsQAvD_BwE

[Veti]

yes but you need the fibreglass sleeving.

https://reprapworld.de/products/extruder/extruder_parts/thermistors/fibreglass_sleeving_incl_thermistor/

[lui2004]

@Veti

ok i will order this one now.

config for this thermistor are not the same as above right ?

[Veti]

no

its B4725 C7.06e-8

[lui2004]

@Veti

last question

i change the thermistor,which is a good heater cartridge for my Ender 5 ?

[Veti]

@lui2004

is it heating up fast enough? then you dont need to change it.

i use these.
https://de.aliexpress.com/item/32857783159.html

[lui2004]

@Veti

i have strange temperature printing pla with 250°C or is it the thermistor that make problems ?

[Veti]

what do you mean strange temperature.

pla does not normally need 250c to print

[lui2004]

i know, usually i print with 200-205°C

you think is a thermistor problem or i need a new heater cartridge ?

i have remake pid tuning ,still the same i can print pla only with min. 250°C

[Veti]

@lui2004 said in After Micro swiss DD upgrade,Extruder skips steps:

i have remake pid tuning ,still the same i can print pla only with min. 250°C

pid tuning does not change the reported temperature.

this is an indication of a wrong configuration.

which thermistor are you using at the moment and what is your config line for it?

[lui2004]

@Veti

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 S1.00           

NTC-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
 

[Veti]

yeah that is why i dont like B3950 thermistors. the reported temperature can be way off.

[lui2004]

@Veti so the Problem is the thermistor?

So i will wait the New one

[Veti]

most likely yes.

[lui2004]

@Veti

i have installed the new thermistor but i can print pla with 235°C i dont now why