recently I started to print tiny electrodes with multi pins with flexible filament. I use Extrudr TPU medium (clear). Actually, my prints are kind of good, but my major problem is stringing between the pins. So the nozzle has to move quite often between this pins and stringing occurs. I tried a lot and changed my settings, i printed slow and fast, I changed the temperature and also retraction but nothing will help against the stringing.
Here are one of my settings:
nozzle: 0,25 mm
extrusion multiplier: 0,79
retraction distance: 1mm
retraction speed: 20mm
no coast at end and wipe nozzle
heated bed: 69°C
default speed: 15 mm/s
x/y axis movement speed: 75
fan speed: first layer 80 secend layer 100
I also tried higher and less values with retraction and speed. Also with less temperature, but than the filament clumps.
I think the problem is the pins of the electrodes and the movement of the nozzle inbetween.
Does anyone has experience with TPU printing and handling the stringing? I am happy for all help
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