Spool for 3D Pen

thingiverse

This is an assembly for a "Hongdak" 3D Pen filament spool purchased from Amazon. The spool holds about 4 feet of filament, approximately 1.3 meters long. When assembled, the outer edge gap will be roughly 1.75mm wide. Smooth out any sharp edges in this gap to ensure easy and snag-free filament feeding. Test fit the two halves together. File down any imperfections where they meet. Secure them with glue or use your 3D pen to weld them together. Welding is fast, strong, and easy. Cut a length of filament and insert one end into the gap between the two halves, then wrap it around and around. The 3D pen has air vents, which are crucial for cooling its electronics. My pen appears designed with left-handed users in mind, so I hold it differently. The arm design places the vent cut-out at the rear, allowing the vent holes to face backward. This setup enables me to view the LCD screen while working and use my thumb to operate the filament feed buttons. If necessary, modify the arm file accordingly. Remember, keeping the air vents clear is essential for maintaining cool electronics. Printing settings include 0.3mm layers with a raft on an Afinia printer. The two spool halves required 60 minutes and 22g of ABS plastic to create. An arm needed only 30 minutes and 11 grams of material. Metric files are provided; importing microscopic files may result in import issues, so try using the Metric versions instead.