Is it OK to turn off heated bed after a number of layers have been printed?
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.
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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.
It's not really a good idea for a few reasons.
One is that the glass expands and shrinks at different rates to PLA and when they cool down the PLA will pop off the glass and your print is the ruined.
Another reason is you need constant temperatures to give a nice print. Fluctuating temps can show uneven shells so the part might have a taper on the external surface as the glass cools.
You can print on cold glass if you want but it takes some experimenting with and you may have to print on blue tape.Edited by Guest
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As @Labern says, its very likely that your print will pop off the print bed if you turn off the heat during printing. As far as energy goes I don't think you have to worry too much... The bed itself I think is only around 100W and has fairly good thermal properties, thus it isn't actually on all the time... It will run on-off cycles to keep the temp around your setting.
To reduce the sagging effect often seen in the bottom of prints (known as Elephants foot), you can reduce your bed temp a bit, and see if you still can get adhesion and no warping (this will also lower energy cost... but again, it really isn't that much)
If you get problems with adhesion, but still want to reduce elephants foot, try printing the first few layers at your normal temp, and then reduce bed temp a bit from layers 2-3 and up (you can use Curas "Tweak at Z" plugin for these things)
...Again, don't reduce it too much, or you'll ruin the print.Edited by Guest
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