Min layer time/ Fan speed threshold/min speed issue
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?
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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.
Maybe I didn't do the best job of explaining. All the settings I'm talking about are in the cooling section. When min layer time is set to 10 seconds and min layer speed is set to 10mm/s, if the layer time drops below 10 seconds the print speed will be reduced in order to raise the layer time to at least 10 seconds (but not below a speed of 10mm/s). Say you are printing at 30mm/s and the min layer time is 10 seconds and the min layer speed is 10mm/s. if the layer time is 3 seconds, the printer would have to slow down to 9mm/s in order to do a 10 second layer. However, it can't because the min layer speed is 10mm/s. If lift head is on, at the end of the layer, the printer will lift the print head 3mm and pause for 1 second to meet the min layer time requirement. The drawback to this is oozing filament that sticks to the print. If lift head is off, the printer will ignore the min layer time and print the layer in 9 seconds (as slow as it is allowed). However, the fan speed won't be increased to compensate. I don't know if a setting for this is already there, but if not, it would be great to have.
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