Sunday, September 19, 2010
An interesting stringing behaviour
The ability to reverse the extruder on my Rapman printer during transitions between print roads has reduced stringing to an enormous extent. What stringing I do get tends to be very thin and feathery.
I've noticed an interesting stringing behaviour since the release of firmware version 4.0.2, though. You can see it here.
What you will get is a thin string between two objects being printed being propagated and then the string acting as a brush on th extruder orifice at intervals between roads. These brushed accretions build up into quite beautiful forms resembling frost.
When you get just a tiny bit of string hanging off of your print you will see the brushed accretion building up at 45 degree angles into something resembling fractal patterns.
This phenomena isn't a big issue for me. The accretions are thin and fragile and brush off easily without sandpaper.
They are pretty, though, in my opinion at least. :-)