Thanks! That explains why the faster I print the more bumps (or pimples) I see! At first I thought that was when the z-stage moved down. How about the funny ridges running around the circumference? Any explanation for that? 
I used Marlin at 115 baud to print that, is there anything better? I don't have an sd card slot or LCD display unfortunately...
Some use 250 baud to print, but I think you can do couple of things to get less pimple:
1. Slow down (replicatorG can do that during a print)
2. Close all programs except repG.
3. Use an Ultimaker controller.
The ridges is because of the "layer height". The lower the layer height, the less ribbles you see.
Some experiments of mine, from left to right: 0.05mm, 0.03mm, 0.015mm.
Damn those look good! Your overhangs are so smooth, mine look like beards...I tried lowering temps to 185C and printing a custom cooler, but :/ still no luck...
I was thinking that we should compile a "Ultimaker print diagnostic kit" for everyone.
So we all post our bad prints up, and the experts can critique them and provide solutions and then we compile a online manual of sorts.
Is there such a project underway?
I started a sort of related thread viewtopic.php?f=7&t=699
the idea here was to show prints that went wrong and what we did to fix them.
it's a slightly different question from 'I have a bad print, what have I done wrong?' because there might be 100 possible answers to that
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UltiMaker Cura 5.3 stable released
ArunC posted a topic in Ultimaker Cura,
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!-
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Here it is. The new UltiMaker S7
MariMakes posted a topic in Official news,
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-
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Cura Alpha With New Tree Support 🎄
MariMakes posted a topic in Ultimaker Cura,
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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mr_seeker 0
The bubbles are formed because the machine is desperately trying to get commands over USB, but fails due to the connection speed. The USB is a bit of a bottleneck, best is to slow down the print or use an SD card.
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