Paradime usb 3d printing pen with oled display and anti stringing feature paradime parapen p the paradime usb 3d printing pen is the frontrunner of the next generation of 3d printing pens it offers excellent reliability an oled temperature display screen greater filament compatibility and has a unique anti stringing feature that retracts the filament when you stop drawing p p as well as single button presets for abs and pla filament the temperature of the paradime 3d printing pen can