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 5.7 stable released
ArunC posted a topic in UltiMaker Cura,
Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more.
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Release Notes: S-Line Firmware 8.3.0 (Latest)
Dustin posted a topic in Firmware,
S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
(Sorry, was out of office when this released)
This update is for...
All UltiMaker S series
New features
Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.-
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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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