Allan Key Knob
thingiverse
This set of custom-made Allan key knobs is designed for a specific size of makerbot's Allen keys. If you need different sizes, I can upload them here upon request. For printing, a standard 0.2mm resolution with two shells and ten percent infill is recommended; the fit should be tight but if needed, a small hot-melt glue drop can secure it further.
Download Model from thingiverse
With this file you will be able to print Allan Key Knob 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 Allan Key Knob.