Indexing head
thingiverse
I indexed my head using a spring-loaded mechanism on the screw, allowing me to adjust it while on-the-go.
Download Model from thingiverse
With this file you will be able to print Indexing head 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 Indexing head.