Shin, this is my daughter’s project. She built the signs in my shop, then took them home to paint & letter them.
I think the printer is called a cricket & is around $200.
I have not seen it in action, but it seems to work well.
She said the adhesive doesn’t stick well to all surfaces, she had to re glue some.
Overall it works great.
I will get more info from her.

Jaybird