Hump Jumper
thingiverse
When you need to sew through multiple layers of material, this tool comes in handy. Two sizes allow for different thicknesses of denim fabric. It's compatible with my girlfriend's Bernina sewing machine.
Download Model from thingiverse
With this file you will be able to print Hump Jumper 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 Hump Jumper.