Heating problems with CURA

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DBX
Posts: 3
Joined: Tue Nov 23, 2021 7:35 pm

Heating problems with CURA

Post by DBX » Tue Nov 23, 2021 8:05 pm

Hello everyone!
I have issues while using 3 extruders on A20T. I set printer exactly like was described here in download section with importing printer profile but still I have the same problems as before. Main problem is one heater and 3 sources of filament. I found on web "Extruders share heater" paramater for CURA, I modified json configure files but with no result - Ultimaker deleted that function because of damaging some printers. I set for PLA on all "extruders" temperature to 215 and when I use just first one than all looks OK. While using second or third source of filament then main heater is set to 0 during CURA 3-extruders logic. I am using the newest CURA and I have no idea how to fix it up and start to work normally. The problem gcode generaterd by CURA is (using only extruder no 3):

Code: Select all

 1 ;FLAVOR:Marlin
      2 ;TIME:662
      3 ;Filament used: 0.146773m, 0m, 0.254283m
      4 ;Layer height: 0.1
      5 ;MINX:55.257
      6 ;MINY:119.1
      7 ;MINZ:0.3
      8 ;MAXX:249.214
      9 ;MAXY:247.213
     10 ;MAXZ:7
     11 ;Generated with Cura_SteamEngine 4.11.0
     12 T0
     13 M140 S65
     14 M105
     15 M190 S65
     16 M104 S215
     17 M104 T2 S175
     18 M105
     19 M109 S215
     20 M105
     21 M109 T2 S175
     22 M82 ;absolute extrusion mode
     23 G28
     24 G1 Z15 F300
     25 M107
     26 G90
     27 M82
     28 M104 S215
     29 M140 S55
     30 G92 E0
     31 M109 S215
     32 M107
     33 M163 S0 P0.33
     34 M163 S1 P0.33
     35 M163 S2 P0.34
     36 M164 S4
     ...
     2044 M104 T2 S215
     ...
     2408 M104 S200
     ...
     //And finaly after first layer
     2802 M109 S215
     2803 M104 T0 S0
     
All gcode has almost 30.000 lines.
Attachment includes temperature set for extruder no 3.
Thanks for helping me with that.
Attachments
Zrzut ekranu 2021-11-23 o 13.00.20.png
Zrzut ekranu 2021-11-23 o 13.00.20.png (68.04 KiB) Viewed 2546 times

Lowteck
Posts: 7
Joined: Mon Aug 09, 2021 1:36 am

Re: Heating problems with CURA

Post by Lowteck » Sun Dec 05, 2021 2:52 am

//And finaly after first layer
2802 M109 S215
2803 M104 T0 S0

This tell the print head to set temp to 0
T0 is what tells the hot end (Tool) to go to S temp of 0.
This code needs to be in the in the "End G Code" under machine management. not in your G code to print your model.

33 M163 S0 P0.33
34 M163 S1 P0.33
35 M163 S2 P0.34
This code is telling you that the printer is using "P0.33" 33% of filament from extruder 1 "S0"

DBX
Posts: 3
Joined: Tue Nov 23, 2021 7:35 pm

Re: Heating problems with CURA

Post by DBX » Thu Dec 23, 2021 12:07 am

Lowteck wrote:
Sun Dec 05, 2021 2:52 am
//And finaly after first layer
2802 M109 S215
2803 M104 T0 S0

This tell the print head to set temp to 0
T0 is what tells the hot end (Tool) to go to S temp of 0.
Yeah, thats is why I paste here that gcode. Why it is setting T0 to S0? Because Cura wants to SET next extruder and T0 sets to 0. That is not my code, Cura makes it, but I do not know why?

Lowteck wrote:
Sun Dec 05, 2021 2:52 am
33 M163 S0 P0.33
34 M163 S1 P0.33
35 M163 S2 P0.34
This code is telling you that the printer is using "P0.33" 33% of filament from extruder 1 "S0"
I have no problem with that in the case. At first I try to run Cura with A20T properly with one shared extruder for three filaments.

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