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Printing fine, then next day feeder starts skipping/going backwards rapidly for half a second now and then
What you are referring to as the culprit is the white PTFE coupler, which indeed can start showing signs of wear. Looks like you found it!
It is hard to pinpoint an exact number of print hours on it, since it continuously receives pressure from the spring above it and what filaments you print (how hot your hot end gets) is also influential.
The fact that it is a consumable and can show signs of wear is a fact though.
With the Ultimaker 2+ we have replaced the spring by a spacer, and replaced the PTFE by a glassfilled PTFE, which is stronger than the 'old' one. If you still had the old one, a new one may last longer.
About error 2, why would you want to move the printhead so fast?
What probably happens, although with filament is seems unlikely unless you move it really really fast, is that you make the steppermotors turn, which generate some power which make it to your electronics. That may probably cause it to freeze.
Best remedy is.. don't move it too fast manually
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In this stable release, Cura 5.3 achieves yet another huge leap forward in 3D printing thanks to material interlocking! As well as introducing an expanded recommended print settings menu and lots of print quality improvements. Not to mention, a whole bunch of new printer profiles for non-UltiMaker printers!
The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
So what’s new?
The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.
The UltiMaker S7 also includes quality of life improvements:
Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more
Curious to see the S7 in action?
We’re hosting a free tech demo on February 7.
It will be live and you can ask any questions to our CTO, Miguel Calvo.
Register here for the Webinar
Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.
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Hi @shockbolt, welcome to the forums!
What you are referring to as the culprit is the white PTFE coupler, which indeed can start showing signs of wear. Looks like you found it!
It is hard to pinpoint an exact number of print hours on it, since it continuously receives pressure from the spring above it and what filaments you print (how hot your hot end gets) is also influential.
The fact that it is a consumable and can show signs of wear is a fact though.
With the Ultimaker 2+ we have replaced the spring by a spacer, and replaced the PTFE by a glassfilled PTFE, which is stronger than the 'old' one. If you still had the old one, a new one may last longer.
About error 2, why would you want to move the printhead so fast?
What probably happens, although with filament is seems unlikely unless you move it really really fast, is that you make the steppermotors turn, which generate some power which make it to your electronics. That may probably cause it to freeze.
Best remedy is.. don't move it too fast manually
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