Envelope embosser - customizable

Embosser for envelopes. You just push it between hands, or against the table and it embosses the pattern well. 

To adjust the letters, use the Fusion 360 source file or STEP file. 

Some clearance is needed between positive and negative part - it depends on what paper do you have.

Also, be careful about the sharp corners that tent to tear the paper. I sanded the printed part, so there is a radius on every risen corner.