Häfner-Spool core
thingiverse
A core to make the 1kg Häfner spool turn easier. I found they grind too much on the spool holder, creating friction. Make one for each side. Print Settings Printer Brand: RepRap Printer: Prusa i3 C Rafts: Doesn't Matter Supports: No Resolution: whatever Infill: 10-20% Notes: This is a tight fit, so make sure your printer is set up for the measurements. When in doubt, print at 98% X and Y size, leave Z alone. Post-Printing Use a small screw to through the tab to keep the core from slipping out.
With this file you will be able to print Häfner-Spool core with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Häfner-Spool core.