I'm running a Prusa Mendel i2 with a Gen7 board and Teacup firmware.
I'm using Slic3r and Pronterface to create gcode and control the printer.
My issue is that Slic3r divides arcs into sections of straight line, and at every "corner" between such lines, the printer pauses for a moment and I have a build-up of material which is not supposed to be there. See the image showing a detail of [
www.thingiverse.com] with the printers z-axis running from top left to bottom right. The ridges you can see on both the outside and inside contours are where the printer pauses. Since apart from this the printing yields pretty good results, I'm assuming the extrusion multiplier is set correctly.
I'm guessing this is a firmware issue and has to do with acceleration. I did not change any values:
Slic3r: "Print Settings" tab: "Acceleration control (advanced)": all three values set to 0 mm/s²
The only activated lines in the "2. Acceleration" section of the Teacup firmware config.h:
#define ACCELERATION_RAMPING
#define ACCELERATION 100.
Did anyone of you come across this issue and how did you fix it?
Thanks in advance,
Oliver
