Removable "Rubber" hammer end

Print with 95A TPU with 10 perimeters.

When printing, you need to enter a pause when the last layer is going to be printed before closing the screw. Insert the screw. Continue printing.

Screw is standard M8 Hex head. If you have longer than 15mm, you will news to extend lower part to fit screw in.

Cut material around the bolt.

Then just tap a thread into a hammer and screw it in. In case of damage, remove the screw and use it in a new print.

This shape is specific for hammer I have but will work in standard hammes asi Well.