Material Keep-Warm Temp Can Cause Clog?
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Material Keep-Warm Temp Can Cause Clog?
I have a dual extruder on my TAZ 4 and I'm extruding ABS at 230 C in the first extruder and HIPS at 230 C in the second extruder. I wanted to set the Keep-Warm temp of the non-working extruder below 230 to prevent the ABS / HIPS from cooking and possibly causing a clog in the hot end; however when I set the Keep-Warm temp to the recommended 65% of the Main temp (230 C) then KISSlicer starts using the previously idle extruder at the Keep-Warm temp (150 C) without giving it a chance to warm up to its Main temp of 230 C before using it to extrude. I'm concerned this in itself will be what causes a clog.
Why doesn't KISSlicer let the idle extruder heat up to its Main temp before using it to start extruding?
Why doesn't KISSlicer let the idle extruder heat up to its Main temp before using it to start extruding?
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Re: Material Keep-Warm Temp Can Cause Clog?
What printer, what firmware, what g-code data in the "select extruder" area?
- Davide Ardizzoia
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Re: Material Keep-Warm Temp Can Cause Clog?
Hips and Abs are quite free from cooking/clogging (as long as you don't overheat them...if you stay at 240°C you're safe).
The real problem is the extruder oozing...
Cooking is something to be afraid of when you use PVA.
Best Regards
Davide Ardizzoia
The real problem is the extruder oozing...
Cooking is something to be afraid of when you use PVA.
Best Regards
Davide Ardizzoia
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Re: Material Keep-Warm Temp Can Cause Clog?
Davide, that's good info, so maybe I need to use a wipe pillar when dual extruding and keeping both extruders at Main temp.
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Re: Material Keep-Warm Temp Can Cause Clog?
Mikk36, here's my specs:
Printer: Lulzbot TAZ 4
Firmware: Marlin-2014Q3_rB
G-code Prefix tab:
G28 ; home all axes
M203 X192 Y208 Z3 ; Speed limits to minimize skipped steps when moving really fast courtesy of forum.lulzbot.com user 1013
M218 T1 X0.252 Y-55.46 ; Dual extruder offsets
I would like to add some gcode that makes both extruders reach Main temp before either starts to extrude during a print. Perhaps w/ my current materials it is not an issue that could lead to clogging the hot end, but as my material choices expand I would like to make sure I am covered.
Edit:
I think Select Extruder tab gcode is what you are interested in:
; Select extruder, warm, purge
; 5D-style
T<EXT+0>
M104 S<TEMP>
Printer: Lulzbot TAZ 4
Firmware: Marlin-2014Q3_rB
G-code Prefix tab:
G28 ; home all axes
M203 X192 Y208 Z3 ; Speed limits to minimize skipped steps when moving really fast courtesy of forum.lulzbot.com user 1013
M218 T1 X0.252 Y-55.46 ; Dual extruder offsets
I would like to add some gcode that makes both extruders reach Main temp before either starts to extrude during a print. Perhaps w/ my current materials it is not an issue that could lead to clogging the hot end, but as my material choices expand I would like to make sure I am covered.
Edit:
I think Select Extruder tab gcode is what you are interested in:
; Select extruder, warm, purge
; 5D-style
T<EXT+0>
M104 S<TEMP>
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- Posts: 271
- Joined: 09 Nov 2014, 23:03
Re: Material Keep-Warm Temp Can Cause Clog?
Thanks, do you know the variable name for bed temp in Kisslicer? I use <Temp> for the extruders, but that variable doesn't work for the bed.
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Re: Material Keep-Warm Temp Can Cause Clog?
<BED>inventabuild wrote:Thanks, do you know the variable name for bed temp in Kisslicer? I use <Temp> for the extruders, but that variable doesn't work for the bed.
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- Joined: 09 Nov 2014, 23:03
Re: Material Keep-Warm Temp Can Cause Clog?
<BED> does not work as a variable to set the bed temp in the G-code prefix tab. Can you please provide additional info?
Edit - As I'm just learning gcode I did not put S in front of bed <TEMP> variable . Will try that.
Edit - As I'm just learning gcode I did not put S in front of bed <TEMP> variable . Will try that.
Last edited by inventabuild on 04 Dec 2014, 04:24, edited 1 time in total.
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Re: Material Keep-Warm Temp Can Cause Clog?
I was using the following code and not only did my bed not heat, but my extruders got switched around so Ext+0 became Ext+1 and vice versa. Is it a problem w/ my gcode or a bug in slicer?
T<EXT+0>
M104 S<TEMP> ;start heating EXT+0, no wait
T<EXT+1>
M104 S<TEMP> ;start heating EXT+1, no wait
M140<BED> ;start heating bed, no wait
T<EXT+0>
M109 S<TEMP> ;set nozzlet temp, wait
T<EXT+1>
M109 S<TEMP> ;set nozzlet temp, wait
M190<BED> ;set bed temp, wait
T<EXT+0>
M104 S<TEMP> ;start heating EXT+0, no wait
T<EXT+1>
M104 S<TEMP> ;start heating EXT+1, no wait
M140<BED> ;start heating bed, no wait
T<EXT+0>
M109 S<TEMP> ;set nozzlet temp, wait
T<EXT+1>
M109 S<TEMP> ;set nozzlet temp, wait
M190<BED> ;set bed temp, wait