Can leaving the nozzle at 160 °C continuously on in between prints affect the viscosity of the prints?
$begingroup$
We're printing on a WASP 3MT pellet extruder with PLA. To save time, we're leaving the hotend at 160 °C between prints but realized that the print quality varies, from one print to the another, when using the same G-code file.
Could it be that leaving the temperature at 160 °C constantly creates more fluid PLA and therefore affects the following print?
nozzle pellet-extruder delta-wasp-3mt
edited Dec 12 '18 at 15:54
Greenonline♦
3,31831046
asked Dec 12 '18 at 13:07
Frank QuekFrank Quek
212
$endgroup$
add a comment |
$begingroup$
We're printing on a WASP 3MT pellet extruder with PLA. To save time, we're leaving the hotend at 160 °C between prints but realized that the print quality varies, from one print to the another, when using the same G-code file.
Could it be that leaving the temperature at 160 °C constantly creates more fluid PLA and therefore affects the following print?
nozzle pellet-extruder delta-wasp-3mt
edited Dec 12 '18 at 15:54
Greenonline♦
3,31831046
asked Dec 12 '18 at 13:07
Frank QuekFrank Quek
212
$endgroup$
$begingroup$
Leaving the temp high for 5 minutes is one thing; for an hour is another. Can you be more specific?
$endgroup$
– Carl Witthoft
Dec 12 '18 at 18:49
$begingroup$
Hey Frank , Your not very specific on what do you mean by print quality varying ? Could you describe what exactly is different every time ? is it dimensions or surface texture , layer height or something else ? . Other than a small clog in the extruder due to carbonising, there shouldn't really be much of a problem. PLA is quite robust that way.
$endgroup$
– Axel Fernandes
Dec 12 '18 at 19:30
1
$begingroup$
While leaving the temp at 160 °C in between prints (an average of 30 mins between prints and sending prints that take about 15mins continuously for several hours) i am observing these in the following prints : 1. over-extrusion 2. A slight colour change from transparent to yellowish 3. bubbles in the PLA. We're doing tests on spatial printing. To allow the material to cool faster in mid-air we are printing at a lower temp. of 160°C.
$endgroup$
– Frank Quek
Dec 12 '18 at 22:33
add a comment |
$begingroup$
We're printing on a WASP 3MT pellet extruder with PLA. To save time, we're leaving the hotend at 160 °C between prints but realized that the print quality varies, from one print to the another, when using the same G-code file.
Could it be that leaving the temperature at 160 °C constantly creates more fluid PLA and therefore affects the following print?
nozzle pellet-extruder delta-wasp-3mt
edited Dec 12 '18 at 15:54
Greenonline♦
3,31831046
asked Dec 12 '18 at 13:07
Frank QuekFrank Quek
212
$endgroup$
We're printing on a WASP 3MT pellet extruder with PLA. To save time, we're leaving the hotend at 160 °C between prints but realized that the print quality varies, from one print to the another, when using the same G-code file.
Could it be that leaving the temperature at 160 °C constantly creates more fluid PLA and therefore affects the following print?
nozzle pellet-extruder delta-wasp-3mt
nozzle pellet-extruder delta-wasp-3mt
edited Dec 12 '18 at 15:54
Greenonline♦
3,31831046
asked Dec 12 '18 at 13:07
Frank QuekFrank Quek
212
edited Dec 12 '18 at 15:54
Greenonline♦
3,31831046
asked Dec 12 '18 at 13:07
Frank QuekFrank Quek
212
edited Dec 12 '18 at 15:54
Greenonline♦
3,31831046
edited Dec 12 '18 at 15:54
Greenonline♦
3,31831046
edited Dec 12 '18 at 15:54
Greenonline♦
3,31831046
3,31831046
asked Dec 12 '18 at 13:07
Frank QuekFrank Quek
212
asked Dec 12 '18 at 13:07
Frank QuekFrank Quek
212
asked Dec 12 '18 at 13:07
Frank QuekFrank Quek
212
212
$begingroup$
Leaving the temp high for 5 minutes is one thing; for an hour is another. Can you be more specific?
$endgroup$
– Carl Witthoft
Dec 12 '18 at 18:49
$begingroup$
Hey Frank , Your not very specific on what do you mean by print quality varying ? Could you describe what exactly is different every time ? is it dimensions or surface texture , layer height or something else ? . Other than a small clog in the extruder due to carbonising, there shouldn't really be much of a problem. PLA is quite robust that way.
$endgroup$
– Axel Fernandes
Dec 12 '18 at 19:30
1
$begingroup$
While leaving the temp at 160 °C in between prints (an average of 30 mins between prints and sending prints that take about 15mins continuously for several hours) i am observing these in the following prints : 1. over-extrusion 2. A slight colour change from transparent to yellowish 3. bubbles in the PLA. We're doing tests on spatial printing. To allow the material to cool faster in mid-air we are printing at a lower temp. of 160°C.
$endgroup$
– Frank Quek
Dec 12 '18 at 22:33
add a comment |
$begingroup$
Leaving the temp high for 5 minutes is one thing; for an hour is another. Can you be more specific?
$endgroup$
– Carl Witthoft
Dec 12 '18 at 18:49
$begingroup$
Hey Frank , Your not very specific on what do you mean by print quality varying ? Could you describe what exactly is different every time ? is it dimensions or surface texture , layer height or something else ? . Other than a small clog in the extruder due to carbonising, there shouldn't really be much of a problem. PLA is quite robust that way.
$endgroup$
– Axel Fernandes
Dec 12 '18 at 19:30
1
$begingroup$
While leaving the temp at 160 °C in between prints (an average of 30 mins between prints and sending prints that take about 15mins continuously for several hours) i am observing these in the following prints : 1. over-extrusion 2. A slight colour change from transparent to yellowish 3. bubbles in the PLA. We're doing tests on spatial printing. To allow the material to cool faster in mid-air we are printing at a lower temp. of 160°C.
$endgroup$
– Frank Quek
Dec 12 '18 at 22:33
$begingroup$
Leaving the temp high for 5 minutes is one thing; for an hour is another. Can you be more specific?
$endgroup$
– Carl Witthoft
Dec 12 '18 at 18:49
$begingroup$
Leaving the temp high for 5 minutes is one thing; for an hour is another. Can you be more specific?
$endgroup$
– Carl Witthoft
Dec 12 '18 at 18:49
$begingroup$
Hey Frank , Your not very specific on what do you mean by print quality varying ? Could you describe what exactly is different every time ? is it dimensions or surface texture , layer height or something else ? . Other than a small clog in the extruder due to carbonising, there shouldn't really be much of a problem. PLA is quite robust that way.
$endgroup$
– Axel Fernandes
Dec 12 '18 at 19:30
$begingroup$
Hey Frank , Your not very specific on what do you mean by print quality varying ? Could you describe what exactly is different every time ? is it dimensions or surface texture , layer height or something else ? . Other than a small clog in the extruder due to carbonising, there shouldn't really be much of a problem. PLA is quite robust that way.
$endgroup$
– Axel Fernandes
Dec 12 '18 at 19:30
1
1
$begingroup$
While leaving the temp at 160 °C in between prints (an average of 30 mins between prints and sending prints that take about 15mins continuously for several hours) i am observing these in the following prints : 1. over-extrusion 2. A slight colour change from transparent to yellowish 3. bubbles in the PLA. We're doing tests on spatial printing. To allow the material to cool faster in mid-air we are printing at a lower temp. of 160°C.
$endgroup$
– Frank Quek
Dec 12 '18 at 22:33
$begingroup$
While leaving the temp at 160 °C in between prints (an average of 30 mins between prints and sending prints that take about 15mins continuously for several hours) i am observing these in the following prints : 1. over-extrusion 2. A slight colour change from transparent to yellowish 3. bubbles in the PLA. We're doing tests on spatial printing. To allow the material to cool faster in mid-air we are printing at a lower temp. of 160°C.
$endgroup$
– Frank Quek
Dec 12 '18 at 22:33
add a comment |
3 Answers
3
active
oldest
votes
$begingroup$
PLA starts to change its properties at above its glass transition temperature of 60-65 °C, if stored there too long. Keeping it at 160°C, close to the melting temperature (173-178 °C) can degrade the material relatively rapidly. During an extrusion, this is usually mitigated by filling fresh material into the melt while the older material gets extruded, but keeping the machine stagnant at the high temperature has not only creep the heat up from the designated melt zone (thus preheating material that should not be preheated yet) but also can damage the material deep in the melt zone. Together with this possible material degradation, the preheated material melts faster and might overshoot the aimed at print temperature until the normal temperature is reached again. Both effects can lead to reduced print quality in the lower layers.
The time saving from keeping the filament heated up for an extended period of time is, in my opinion, not worth the quality reduction that can come from using non-uniform material. You pay more in lost prints than you save in time for heating up the head.
If it is impossible to not keep the hotend heated between prints, it might be advisable try these:
- Starting every print with a larger purging operation might get rid of degraded material. It would be as simple as extruding some quantity of material before starting the actual print at the edge of the build plate.
- Aside from purging, it might be a good idea to reduce the hold temperature from 160 °C to a lower temperature, allowing the melt to partly solidify and keep the heat creep in check.
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
answered Dec 12 '18 at 14:43
TrishTrish
5,46911139
$endgroup$
add a comment |
$begingroup$
With a bottoming value of being printable at 180 °C you are basically cooking the filament at 160 °C. If done a prolonged time, carbonization will take place as the more volatile parts will slowly be gassed out and part from the melt first.
When you start extruding after a certain time, you will need to get rid of the goo inside, this can lead to (partial) clogs and inconsistent printing. You should either lower it much further or not leaving it on at all.
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
answered Dec 12 '18 at 15:03
0scar0scar
11.8k31546
$endgroup$
add a comment |
$begingroup$
I leave the extruder working at 190°C between printings up to for 20 minutes while I made the change; this only provoques that the nozzle gets empty; nothing gets burned or clogged. Once to start againg just feed a little more of filament manualy or waits to the skirt do the cleaning and refilling the nozzle.
Normally at this temperature (190°C) the nozzle gets empty in the next 2 minutes due normal melting flow. I can assure that your printings will be like water drops.
answered Dec 12 '18 at 18:05
Fernando BaltazarFernando Baltazar
831416
$endgroup$
1
$begingroup$
you use a filament bases printer - they use a pellet based system that melts a considerably larger amount
$endgroup$
– Trish
Dec 12 '18 at 20:45
$begingroup$
@Trish The process is the same to clean a lyman filament extruder. Also in the flow meters is needed allowing that all old material flows fully to proceed with a new one.
$endgroup$
– Fernando Baltazar
Dec 13 '18 at 0:30
$begingroup$
@Trish I think Fernando's saying that if you completely clean out the hotend, then you don't have a problem. That's true but pretty much useless :-(
$endgroup$
– Carl Witthoft
Dec 13 '18 at 14:16
$begingroup$
@CarlWitthoft :D Nice!, not having problems is useless. Normally is not a full cleaning due is emptying by melting flow until you feed more material, if the time is larger then the emptying also is larger and could be totally empty on the next charge.
$endgroup$
– Fernando Baltazar
Dec 14 '18 at 5:06
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "640"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2f3dprinting.stackexchange.com%2fquestions%2f7624%2fcan-leaving-the-nozzle-at-160-c-continuously-on-in-between-prints-affect-the-vi%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
PLA starts to change its properties at above its glass transition temperature of 60-65 °C, if stored there too long. Keeping it at 160°C, close to the melting temperature (173-178 °C) can degrade the material relatively rapidly. During an extrusion, this is usually mitigated by filling fresh material into the melt while the older material gets extruded, but keeping the machine stagnant at the high temperature has not only creep the heat up from the designated melt zone (thus preheating material that should not be preheated yet) but also can damage the material deep in the melt zone. Together with this possible material degradation, the preheated material melts faster and might overshoot the aimed at print temperature until the normal temperature is reached again. Both effects can lead to reduced print quality in the lower layers.
The time saving from keeping the filament heated up for an extended period of time is, in my opinion, not worth the quality reduction that can come from using non-uniform material. You pay more in lost prints than you save in time for heating up the head.
If it is impossible to not keep the hotend heated between prints, it might be advisable try these:
- Starting every print with a larger purging operation might get rid of degraded material. It would be as simple as extruding some quantity of material before starting the actual print at the edge of the build plate.
- Aside from purging, it might be a good idea to reduce the hold temperature from 160 °C to a lower temperature, allowing the melt to partly solidify and keep the heat creep in check.
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
answered Dec 12 '18 at 14:43
TrishTrish
5,46911139
$endgroup$
add a comment |
$begingroup$
PLA starts to change its properties at above its glass transition temperature of 60-65 °C, if stored there too long. Keeping it at 160°C, close to the melting temperature (173-178 °C) can degrade the material relatively rapidly. During an extrusion, this is usually mitigated by filling fresh material into the melt while the older material gets extruded, but keeping the machine stagnant at the high temperature has not only creep the heat up from the designated melt zone (thus preheating material that should not be preheated yet) but also can damage the material deep in the melt zone. Together with this possible material degradation, the preheated material melts faster and might overshoot the aimed at print temperature until the normal temperature is reached again. Both effects can lead to reduced print quality in the lower layers.
The time saving from keeping the filament heated up for an extended period of time is, in my opinion, not worth the quality reduction that can come from using non-uniform material. You pay more in lost prints than you save in time for heating up the head.
If it is impossible to not keep the hotend heated between prints, it might be advisable try these:
- Starting every print with a larger purging operation might get rid of degraded material. It would be as simple as extruding some quantity of material before starting the actual print at the edge of the build plate.
- Aside from purging, it might be a good idea to reduce the hold temperature from 160 °C to a lower temperature, allowing the melt to partly solidify and keep the heat creep in check.
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
answered Dec 12 '18 at 14:43
TrishTrish
5,46911139
$endgroup$
add a comment |
$begingroup$
PLA starts to change its properties at above its glass transition temperature of 60-65 °C, if stored there too long. Keeping it at 160°C, close to the melting temperature (173-178 °C) can degrade the material relatively rapidly. During an extrusion, this is usually mitigated by filling fresh material into the melt while the older material gets extruded, but keeping the machine stagnant at the high temperature has not only creep the heat up from the designated melt zone (thus preheating material that should not be preheated yet) but also can damage the material deep in the melt zone. Together with this possible material degradation, the preheated material melts faster and might overshoot the aimed at print temperature until the normal temperature is reached again. Both effects can lead to reduced print quality in the lower layers.
The time saving from keeping the filament heated up for an extended period of time is, in my opinion, not worth the quality reduction that can come from using non-uniform material. You pay more in lost prints than you save in time for heating up the head.
If it is impossible to not keep the hotend heated between prints, it might be advisable try these:
- Starting every print with a larger purging operation might get rid of degraded material. It would be as simple as extruding some quantity of material before starting the actual print at the edge of the build plate.
- Aside from purging, it might be a good idea to reduce the hold temperature from 160 °C to a lower temperature, allowing the melt to partly solidify and keep the heat creep in check.
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
answered Dec 12 '18 at 14:43
TrishTrish
5,46911139
$endgroup$
PLA starts to change its properties at above its glass transition temperature of 60-65 °C, if stored there too long. Keeping it at 160°C, close to the melting temperature (173-178 °C) can degrade the material relatively rapidly. During an extrusion, this is usually mitigated by filling fresh material into the melt while the older material gets extruded, but keeping the machine stagnant at the high temperature has not only creep the heat up from the designated melt zone (thus preheating material that should not be preheated yet) but also can damage the material deep in the melt zone. Together with this possible material degradation, the preheated material melts faster and might overshoot the aimed at print temperature until the normal temperature is reached again. Both effects can lead to reduced print quality in the lower layers.
The time saving from keeping the filament heated up for an extended period of time is, in my opinion, not worth the quality reduction that can come from using non-uniform material. You pay more in lost prints than you save in time for heating up the head.
If it is impossible to not keep the hotend heated between prints, it might be advisable try these:
- Starting every print with a larger purging operation might get rid of degraded material. It would be as simple as extruding some quantity of material before starting the actual print at the edge of the build plate.
- Aside from purging, it might be a good idea to reduce the hold temperature from 160 °C to a lower temperature, allowing the melt to partly solidify and keep the heat creep in check.
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
answered Dec 12 '18 at 14:43
TrishTrish
5,46911139
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
3,31831046
answered Dec 12 '18 at 14:43
TrishTrish
5,46911139
answered Dec 12 '18 at 14:43
TrishTrish
5,46911139
answered Dec 12 '18 at 14:43
TrishTrish
5,46911139
5,46911139
add a comment |
add a comment |
$begingroup$
With a bottoming value of being printable at 180 °C you are basically cooking the filament at 160 °C. If done a prolonged time, carbonization will take place as the more volatile parts will slowly be gassed out and part from the melt first.
When you start extruding after a certain time, you will need to get rid of the goo inside, this can lead to (partial) clogs and inconsistent printing. You should either lower it much further or not leaving it on at all.
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
answered Dec 12 '18 at 15:03
0scar0scar
11.8k31546
$endgroup$
add a comment |
$begingroup$
With a bottoming value of being printable at 180 °C you are basically cooking the filament at 160 °C. If done a prolonged time, carbonization will take place as the more volatile parts will slowly be gassed out and part from the melt first.
When you start extruding after a certain time, you will need to get rid of the goo inside, this can lead to (partial) clogs and inconsistent printing. You should either lower it much further or not leaving it on at all.
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
answered Dec 12 '18 at 15:03
0scar0scar
11.8k31546
$endgroup$
add a comment |
$begingroup$
With a bottoming value of being printable at 180 °C you are basically cooking the filament at 160 °C. If done a prolonged time, carbonization will take place as the more volatile parts will slowly be gassed out and part from the melt first.
When you start extruding after a certain time, you will need to get rid of the goo inside, this can lead to (partial) clogs and inconsistent printing. You should either lower it much further or not leaving it on at all.
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
answered Dec 12 '18 at 15:03
0scar0scar
11.8k31546
$endgroup$
With a bottoming value of being printable at 180 °C you are basically cooking the filament at 160 °C. If done a prolonged time, carbonization will take place as the more volatile parts will slowly be gassed out and part from the melt first.
When you start extruding after a certain time, you will need to get rid of the goo inside, this can lead to (partial) clogs and inconsistent printing. You should either lower it much further or not leaving it on at all.
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
answered Dec 12 '18 at 15:03
0scar0scar
11.8k31546
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
edited Dec 12 '18 at 15:57
Greenonline♦
3,31831046
3,31831046
answered Dec 12 '18 at 15:03
0scar0scar
11.8k31546
answered Dec 12 '18 at 15:03
0scar0scar
11.8k31546
answered Dec 12 '18 at 15:03
0scar0scar
11.8k31546
11.8k31546
add a comment |
add a comment |
$begingroup$
I leave the extruder working at 190°C between printings up to for 20 minutes while I made the change; this only provoques that the nozzle gets empty; nothing gets burned or clogged. Once to start againg just feed a little more of filament manualy or waits to the skirt do the cleaning and refilling the nozzle.
Normally at this temperature (190°C) the nozzle gets empty in the next 2 minutes due normal melting flow. I can assure that your printings will be like water drops.
answered Dec 12 '18 at 18:05
Fernando BaltazarFernando Baltazar
831416
$endgroup$
1
$begingroup$
you use a filament bases printer - they use a pellet based system that melts a considerably larger amount
$endgroup$
– Trish
Dec 12 '18 at 20:45
$begingroup$
@Trish The process is the same to clean a lyman filament extruder. Also in the flow meters is needed allowing that all old material flows fully to proceed with a new one.
$endgroup$
– Fernando Baltazar
Dec 13 '18 at 0:30
$begingroup$
@Trish I think Fernando's saying that if you completely clean out the hotend, then you don't have a problem. That's true but pretty much useless :-(
$endgroup$
– Carl Witthoft
Dec 13 '18 at 14:16
$begingroup$
@CarlWitthoft :D Nice!, not having problems is useless. Normally is not a full cleaning due is emptying by melting flow until you feed more material, if the time is larger then the emptying also is larger and could be totally empty on the next charge.
$endgroup$
– Fernando Baltazar
Dec 14 '18 at 5:06
add a comment |
$begingroup$
I leave the extruder working at 190°C between printings up to for 20 minutes while I made the change; this only provoques that the nozzle gets empty; nothing gets burned or clogged. Once to start againg just feed a little more of filament manualy or waits to the skirt do the cleaning and refilling the nozzle.
Normally at this temperature (190°C) the nozzle gets empty in the next 2 minutes due normal melting flow. I can assure that your printings will be like water drops.
answered Dec 12 '18 at 18:05
Fernando BaltazarFernando Baltazar
831416
$endgroup$
1
$begingroup$
you use a filament bases printer - they use a pellet based system that melts a considerably larger amount
$endgroup$
– Trish
Dec 12 '18 at 20:45
$begingroup$
@Trish The process is the same to clean a lyman filament extruder. Also in the flow meters is needed allowing that all old material flows fully to proceed with a new one.
$endgroup$
– Fernando Baltazar
Dec 13 '18 at 0:30
$begingroup$
@Trish I think Fernando's saying that if you completely clean out the hotend, then you don't have a problem. That's true but pretty much useless :-(
$endgroup$
– Carl Witthoft
Dec 13 '18 at 14:16
$begingroup$
@CarlWitthoft :D Nice!, not having problems is useless. Normally is not a full cleaning due is emptying by melting flow until you feed more material, if the time is larger then the emptying also is larger and could be totally empty on the next charge.
$endgroup$
– Fernando Baltazar
Dec 14 '18 at 5:06
add a comment |
$begingroup$
I leave the extruder working at 190°C between printings up to for 20 minutes while I made the change; this only provoques that the nozzle gets empty; nothing gets burned or clogged. Once to start againg just feed a little more of filament manualy or waits to the skirt do the cleaning and refilling the nozzle.
Normally at this temperature (190°C) the nozzle gets empty in the next 2 minutes due normal melting flow. I can assure that your printings will be like water drops.
answered Dec 12 '18 at 18:05
Fernando BaltazarFernando Baltazar
831416
$endgroup$
I leave the extruder working at 190°C between printings up to for 20 minutes while I made the change; this only provoques that the nozzle gets empty; nothing gets burned or clogged. Once to start againg just feed a little more of filament manualy or waits to the skirt do the cleaning and refilling the nozzle.
Normally at this temperature (190°C) the nozzle gets empty in the next 2 minutes due normal melting flow. I can assure that your printings will be like water drops.
answered Dec 12 '18 at 18:05
Fernando BaltazarFernando Baltazar
831416
answered Dec 12 '18 at 18:05
Fernando BaltazarFernando Baltazar
831416
answered Dec 12 '18 at 18:05
Fernando BaltazarFernando Baltazar
831416
answered Dec 12 '18 at 18:05
Fernando BaltazarFernando Baltazar
831416
831416
1
$begingroup$
you use a filament bases printer - they use a pellet based system that melts a considerably larger amount
$endgroup$
– Trish
Dec 12 '18 at 20:45
$begingroup$
@Trish The process is the same to clean a lyman filament extruder. Also in the flow meters is needed allowing that all old material flows fully to proceed with a new one.
$endgroup$
– Fernando Baltazar
Dec 13 '18 at 0:30
$begingroup$
@Trish I think Fernando's saying that if you completely clean out the hotend, then you don't have a problem. That's true but pretty much useless :-(
$endgroup$
– Carl Witthoft
Dec 13 '18 at 14:16
$begingroup$
@CarlWitthoft :D Nice!, not having problems is useless. Normally is not a full cleaning due is emptying by melting flow until you feed more material, if the time is larger then the emptying also is larger and could be totally empty on the next charge.
$endgroup$
– Fernando Baltazar
Dec 14 '18 at 5:06
add a comment |
1
$begingroup$
you use a filament bases printer - they use a pellet based system that melts a considerably larger amount
$endgroup$
– Trish
Dec 12 '18 at 20:45
$begingroup$
@Trish The process is the same to clean a lyman filament extruder. Also in the flow meters is needed allowing that all old material flows fully to proceed with a new one.
$endgroup$
– Fernando Baltazar
Dec 13 '18 at 0:30
$begingroup$
@Trish I think Fernando's saying that if you completely clean out the hotend, then you don't have a problem. That's true but pretty much useless :-(
$endgroup$
– Carl Witthoft
Dec 13 '18 at 14:16
$begingroup$
@CarlWitthoft :D Nice!, not having problems is useless. Normally is not a full cleaning due is emptying by melting flow until you feed more material, if the time is larger then the emptying also is larger and could be totally empty on the next charge.
$endgroup$
– Fernando Baltazar
Dec 14 '18 at 5:06
1
1
$begingroup$
you use a filament bases printer - they use a pellet based system that melts a considerably larger amount
$endgroup$
– Trish
Dec 12 '18 at 20:45
$begingroup$
you use a filament bases printer - they use a pellet based system that melts a considerably larger amount
$endgroup$
– Trish
Dec 12 '18 at 20:45
$begingroup$
@Trish The process is the same to clean a lyman filament extruder. Also in the flow meters is needed allowing that all old material flows fully to proceed with a new one.
$endgroup$
– Fernando Baltazar
Dec 13 '18 at 0:30
$begingroup$
@Trish The process is the same to clean a lyman filament extruder. Also in the flow meters is needed allowing that all old material flows fully to proceed with a new one.
$endgroup$
– Fernando Baltazar
Dec 13 '18 at 0:30
$begingroup$
@Trish I think Fernando's saying that if you completely clean out the hotend, then you don't have a problem. That's true but pretty much useless :-(
$endgroup$
– Carl Witthoft
Dec 13 '18 at 14:16
$begingroup$
@Trish I think Fernando's saying that if you completely clean out the hotend, then you don't have a problem. That's true but pretty much useless :-(
$endgroup$
– Carl Witthoft
Dec 13 '18 at 14:16
$begingroup$
@CarlWitthoft :D Nice!, not having problems is useless. Normally is not a full cleaning due is emptying by melting flow until you feed more material, if the time is larger then the emptying also is larger and could be totally empty on the next charge.
$endgroup$
– Fernando Baltazar
Dec 14 '18 at 5:06
$begingroup$
@CarlWitthoft :D Nice!, not having problems is useless. Normally is not a full cleaning due is emptying by melting flow until you feed more material, if the time is larger then the emptying also is larger and could be totally empty on the next charge.
$endgroup$
– Fernando Baltazar
Dec 14 '18 at 5:06
add a comment |
Thanks for contributing an answer to 3D Printing Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2f3dprinting.stackexchange.com%2fquestions%2f7624%2fcan-leaving-the-nozzle-at-160-c-continuously-on-in-between-prints-affect-the-vi%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
$begingroup$
Leaving the temp high for 5 minutes is one thing; for an hour is another. Can you be more specific?
$endgroup$
– Carl Witthoft
Dec 12 '18 at 18:49
$begingroup$
Hey Frank , Your not very specific on what do you mean by print quality varying ? Could you describe what exactly is different every time ? is it dimensions or surface texture , layer height or something else ? . Other than a small clog in the extruder due to carbonising, there shouldn't really be much of a problem. PLA is quite robust that way.
$endgroup$
– Axel Fernandes
Dec 12 '18 at 19:30
1
$begingroup$
While leaving the temp at 160 °C in between prints (an average of 30 mins between prints and sending prints that take about 15mins continuously for several hours) i am observing these in the following prints : 1. over-extrusion 2. A slight colour change from transparent to yellowish 3. bubbles in the PLA. We're doing tests on spatial printing. To allow the material to cool faster in mid-air we are printing at a lower temp. of 160°C.
$endgroup$
– Frank Quek
Dec 12 '18 at 22:33