What took time?

Spent hours uncloging the prusa, and finding out why the print failed. Loosend the screw until it barely is outside on the right, this is what works best for our TPU print. Avoid loading by pushing filament in aswell, and the filament should be placed directly above the extruder. Ideally as close to the extruder as possible. 

Printing

Printed a cylinder using 0% infil, and succeded in airtightening it. However, still struggle with the in/outlet of air, would like to place a bikevalve or similar in the print to make it tight.