1) Be aware that you can continue a failed print even after many hours. Just don't let the heated bed cool or the part will pop off
Will try that some day. So far I don't have a huge volume of parts to print so I can start over from scratch. I also updated a few things in the model (the lower half of the print let me test a few things).
2) With normal curling, when you do "move material" the first bit of material curls and touches the nozzle. This is normal. With severe curling, you pull that material (maybe 50mm worth) and force it to hang down, but when you extrude a little more it curls again! In other words 50mm of .4mm diameter hanging filament should be enough weight to prevent curling. If not you should clean your nozzle tip.
What you describe is what I had when the printer was new. Now, after unclogging it tends to curl much more.
The easiest way to clean the nozzle tip is with a steel needle. I recommend purchasing either hypodermic needles (check the diameter before ordering) or acupuncture needles. You scrape the inside of the nozzle tip around in a few circles while the filament is at 180C or hotter.
I'll try again with my bronze brush. And maybe some more heat/cool/pull.
The hard way is it to take it apart and put it in a glass flame and burn away all the PLA and ABS (powder from the black feeder that ends up in your print head) and dust. Then soak in acetone for an hour. Don't heat it so much that the nozzle melts.
There are two wires coming from the nozzle assembly. I assume one is power the other is the temp sensor ?
How do I disconnect them ? Are connectors higher in the mesh ? I didn't see anything after I had unscrewed the nozzle assembly from the frame.
Please add your country to your profile location in case someone is in your country and has a supplier suggestion (france?)
France indeed.
I'm googling needles. I've found some acupuncture 0.3mm needles.
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gr5 2,295
1) Be aware that you can continue a failed print even after many hours. Just don't let the heated bed cool or the part will pop off:
http://umforum.ultimaker.com/index.php?/topic/4213-ideas-for-recovering-failed-prints/?p=34788
2) With normal curling, when you do "move material" the first bit of material curls and touches the nozzle. This is normal. With severe curling, you pull that material (maybe 50mm worth) and force it to hang down, but when you extrude a little more it curls again! In other words 50mm of .4mm diameter hanging filament should be enough weight to prevent curling. If not you should clean your nozzle tip.
The easiest way to clean the nozzle tip is with a steel needle. I recommend purchasing either hypodermic needles (check the diameter before ordering) or acupuncture needles. You scrape the inside of the nozzle tip around in a few circles while the filament is at 180C or hotter.
The hard way is it to take it apart and put it in a glass flame and burn away all the PLA and ABS (powder from the black feeder that ends up in your print head) and dust. Then soak in acetone for an hour. Don't heat it so much that the nozzle melts.
Please add your country to your profile location in case someone is in your country and has a supplier suggestion (france?)
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