Mixing
Filament isnt going into the bowden tube. Instead it goes “into the roomâ€
Clash Royale CLAN TAG#URR8PPP
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The pictures explain my problem. I already tried to reduce the retraction but that sowed no effect. Thank you for your help. The effect is a total stop of the print (no material is extruded).
filament extruder
asked 4 hours ago
DonaldEnte
686
add a comment |Â
up vote
2
down vote
favorite
The pictures explain my problem. I already tried to reduce the retraction but that sowed no effect. Thank you for your help. The effect is a total stop of the print (no material is extruded).
filament extruder
asked 4 hours ago
DonaldEnte
686
Can you also add what does work, what changed since your last good print, etc.
– Sean Houlihane
3 hours ago
add a comment |Â
up vote
2
down vote
favorite
up vote
2
down vote
favorite
The pictures explain my problem. I already tried to reduce the retraction but that sowed no effect. Thank you for your help. The effect is a total stop of the print (no material is extruded).
filament extruder
asked 4 hours ago
DonaldEnte
686
The pictures explain my problem. I already tried to reduce the retraction but that sowed no effect. Thank you for your help. The effect is a total stop of the print (no material is extruded).
filament extruder
filament extruder
asked 4 hours ago
DonaldEnte
686
asked 4 hours ago
DonaldEnte
686
asked 4 hours ago
DonaldEnte
686
asked 4 hours ago
DonaldEnte
686
asked 4 hours ago
DonaldEnte
686
686
Can you also add what does work, what changed since your last good print, etc.
– Sean Houlihane
3 hours ago
add a comment |Â
Can you also add what does work, what changed since your last good print, etc.
– Sean Houlihane
3 hours ago
Can you also add what does work, what changed since your last good print, etc.
– Sean Houlihane
3 hours ago
Can you also add what does work, what changed since your last good print, etc.
– Sean Houlihane
3 hours ago
add a comment |Â
2 Answers
2
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oldest
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up vote
3
down vote
This is typically caused by resistance in the tube or hotend but in your case it appears to be mostly caused by a very poorly designed extruder. The filament needs to be constrained closer to the drive gear. You may be able to drill out the PTC connector to allow the PTFE tube to reach closer to the gears or print a spacer to fit in between but you need to support the filament in that gap.
You can try raising the hotend temperature as a band-aid until you can fix the problem, do not exceed 240 C if you have a PTFE lined hotend. Long retractions can also pull molten filament into the cold zone where it solidifies and make extrusion harder.
As an example, here is a picture of a Bondtech BMG extruder. Note how the extruder constrains the filament path all the way from the drive gear to the hotend entrance. While this example is extreme for normal PLA/PETG/ABS, it is required for flexible filament. A 4mm gap (or closer) should be fine for PLA/PETG/ABS or other hard filaments.
answered 4 hours ago
tjb1
1,836723
add a comment |Â
up vote
2
down vote
There are two parts to this problem.
First, the extruder is meeting too much resistance in the print. There can be several causes, from the first layer being too low, a blocked nozzle, too low a print temperature, or printing too fast, so the viscosity of the filament just makes it too hard to pass through the nozzle. Usually, several of these will be in play together.
Second, the extruder design allows the filament to bend as it leaves the drive gears. Typically, this problem is seen most with flexible filament because that will obviously collapse more easily under compression for a given unsupported length.
The trigger is the first group, the second part determines the resiliance of your setup to this problem. Once the break point is reached, there is no recovery. You can retract the filament, but trying to resume the print will just set the extruder back to the same absolute position.
First, check that you can extrude OK in free space, without any drop in temperature. Also check your extrusion steps calibration - if you're extruding 110% of what the print is expecting, the extrusion back pressure can build up to a point of failure. Check the first layer, check the calibration.
answered 3 hours ago
Sean Houlihane
2,2651432
add a comment |Â
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
This is typically caused by resistance in the tube or hotend but in your case it appears to be mostly caused by a very poorly designed extruder. The filament needs to be constrained closer to the drive gear. You may be able to drill out the PTC connector to allow the PTFE tube to reach closer to the gears or print a spacer to fit in between but you need to support the filament in that gap.
You can try raising the hotend temperature as a band-aid until you can fix the problem, do not exceed 240 C if you have a PTFE lined hotend. Long retractions can also pull molten filament into the cold zone where it solidifies and make extrusion harder.
As an example, here is a picture of a Bondtech BMG extruder. Note how the extruder constrains the filament path all the way from the drive gear to the hotend entrance. While this example is extreme for normal PLA/PETG/ABS, it is required for flexible filament. A 4mm gap (or closer) should be fine for PLA/PETG/ABS or other hard filaments.
answered 4 hours ago
tjb1
1,836723
add a comment |Â
up vote
3
down vote
This is typically caused by resistance in the tube or hotend but in your case it appears to be mostly caused by a very poorly designed extruder. The filament needs to be constrained closer to the drive gear. You may be able to drill out the PTC connector to allow the PTFE tube to reach closer to the gears or print a spacer to fit in between but you need to support the filament in that gap.
You can try raising the hotend temperature as a band-aid until you can fix the problem, do not exceed 240 C if you have a PTFE lined hotend. Long retractions can also pull molten filament into the cold zone where it solidifies and make extrusion harder.
As an example, here is a picture of a Bondtech BMG extruder. Note how the extruder constrains the filament path all the way from the drive gear to the hotend entrance. While this example is extreme for normal PLA/PETG/ABS, it is required for flexible filament. A 4mm gap (or closer) should be fine for PLA/PETG/ABS or other hard filaments.
answered 4 hours ago
tjb1
1,836723
add a comment |Â
up vote
3
down vote
up vote
3
down vote
This is typically caused by resistance in the tube or hotend but in your case it appears to be mostly caused by a very poorly designed extruder. The filament needs to be constrained closer to the drive gear. You may be able to drill out the PTC connector to allow the PTFE tube to reach closer to the gears or print a spacer to fit in between but you need to support the filament in that gap.
You can try raising the hotend temperature as a band-aid until you can fix the problem, do not exceed 240 C if you have a PTFE lined hotend. Long retractions can also pull molten filament into the cold zone where it solidifies and make extrusion harder.
As an example, here is a picture of a Bondtech BMG extruder. Note how the extruder constrains the filament path all the way from the drive gear to the hotend entrance. While this example is extreme for normal PLA/PETG/ABS, it is required for flexible filament. A 4mm gap (or closer) should be fine for PLA/PETG/ABS or other hard filaments.
answered 4 hours ago
tjb1
1,836723
This is typically caused by resistance in the tube or hotend but in your case it appears to be mostly caused by a very poorly designed extruder. The filament needs to be constrained closer to the drive gear. You may be able to drill out the PTC connector to allow the PTFE tube to reach closer to the gears or print a spacer to fit in between but you need to support the filament in that gap.
You can try raising the hotend temperature as a band-aid until you can fix the problem, do not exceed 240 C if you have a PTFE lined hotend. Long retractions can also pull molten filament into the cold zone where it solidifies and make extrusion harder.
As an example, here is a picture of a Bondtech BMG extruder. Note how the extruder constrains the filament path all the way from the drive gear to the hotend entrance. While this example is extreme for normal PLA/PETG/ABS, it is required for flexible filament. A 4mm gap (or closer) should be fine for PLA/PETG/ABS or other hard filaments.
answered 4 hours ago
tjb1
1,836723
edited 3 hours ago
answered 4 hours ago
tjb1
1,836723
answered 4 hours ago
tjb1
1,836723
answered 4 hours ago
tjb1
1,836723
1,836723
add a comment |Â
add a comment |Â
up vote
2
down vote
There are two parts to this problem.
First, the extruder is meeting too much resistance in the print. There can be several causes, from the first layer being too low, a blocked nozzle, too low a print temperature, or printing too fast, so the viscosity of the filament just makes it too hard to pass through the nozzle. Usually, several of these will be in play together.
Second, the extruder design allows the filament to bend as it leaves the drive gears. Typically, this problem is seen most with flexible filament because that will obviously collapse more easily under compression for a given unsupported length.
The trigger is the first group, the second part determines the resiliance of your setup to this problem. Once the break point is reached, there is no recovery. You can retract the filament, but trying to resume the print will just set the extruder back to the same absolute position.
First, check that you can extrude OK in free space, without any drop in temperature. Also check your extrusion steps calibration - if you're extruding 110% of what the print is expecting, the extrusion back pressure can build up to a point of failure. Check the first layer, check the calibration.
answered 3 hours ago
Sean Houlihane
2,2651432
add a comment |Â
up vote
2
down vote
There are two parts to this problem.
First, the extruder is meeting too much resistance in the print. There can be several causes, from the first layer being too low, a blocked nozzle, too low a print temperature, or printing too fast, so the viscosity of the filament just makes it too hard to pass through the nozzle. Usually, several of these will be in play together.
Second, the extruder design allows the filament to bend as it leaves the drive gears. Typically, this problem is seen most with flexible filament because that will obviously collapse more easily under compression for a given unsupported length.
The trigger is the first group, the second part determines the resiliance of your setup to this problem. Once the break point is reached, there is no recovery. You can retract the filament, but trying to resume the print will just set the extruder back to the same absolute position.
First, check that you can extrude OK in free space, without any drop in temperature. Also check your extrusion steps calibration - if you're extruding 110% of what the print is expecting, the extrusion back pressure can build up to a point of failure. Check the first layer, check the calibration.
answered 3 hours ago
Sean Houlihane
2,2651432
add a comment |Â
up vote
2
down vote
up vote
2
down vote
There are two parts to this problem.
First, the extruder is meeting too much resistance in the print. There can be several causes, from the first layer being too low, a blocked nozzle, too low a print temperature, or printing too fast, so the viscosity of the filament just makes it too hard to pass through the nozzle. Usually, several of these will be in play together.
Second, the extruder design allows the filament to bend as it leaves the drive gears. Typically, this problem is seen most with flexible filament because that will obviously collapse more easily under compression for a given unsupported length.
The trigger is the first group, the second part determines the resiliance of your setup to this problem. Once the break point is reached, there is no recovery. You can retract the filament, but trying to resume the print will just set the extruder back to the same absolute position.
First, check that you can extrude OK in free space, without any drop in temperature. Also check your extrusion steps calibration - if you're extruding 110% of what the print is expecting, the extrusion back pressure can build up to a point of failure. Check the first layer, check the calibration.
answered 3 hours ago
Sean Houlihane
2,2651432
There are two parts to this problem.
First, the extruder is meeting too much resistance in the print. There can be several causes, from the first layer being too low, a blocked nozzle, too low a print temperature, or printing too fast, so the viscosity of the filament just makes it too hard to pass through the nozzle. Usually, several of these will be in play together.
Second, the extruder design allows the filament to bend as it leaves the drive gears. Typically, this problem is seen most with flexible filament because that will obviously collapse more easily under compression for a given unsupported length.
The trigger is the first group, the second part determines the resiliance of your setup to this problem. Once the break point is reached, there is no recovery. You can retract the filament, but trying to resume the print will just set the extruder back to the same absolute position.
First, check that you can extrude OK in free space, without any drop in temperature. Also check your extrusion steps calibration - if you're extruding 110% of what the print is expecting, the extrusion back pressure can build up to a point of failure. Check the first layer, check the calibration.
answered 3 hours ago
Sean Houlihane
2,2651432
answered 3 hours ago
Sean Houlihane
2,2651432
answered 3 hours ago
Sean Houlihane
2,2651432
answered 3 hours ago
Sean Houlihane
2,2651432
2,2651432
add a comment |Â
add a comment |Â
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Can you also add what does work, what changed since your last good print, etc.
– Sean Houlihane
3 hours ago