Okay, but has drawbacks
I got this to work well with Graphic 45 card stock and mylar. If I didn’t use the mylar over the card stock, the metal button shredded the paper on the “A” step. I like a matte finish on buttons sometimes, so this was a little disappointing.
Carta Bella paper was too thick. With mylar, it just would not press into the button back.
I looked up a YouTube video on button maker maintenance and it suggested an automotive/household lube would help with shredding and such. I used a door-ease stick-type lube on the metal parts and the edges of the button form itself. It helped some I think—the paper didn’t shred as badly without the mylar.
I think most people will be frustrated my the waste of materials from trying to make this work.
Update:
I tested a bunch of paper by die cutting it and then pressing it at the “A” step without the metal form or mylar. There wasn’t much of a difference between thicknesses—all of them tore at the corners, and it seemed like there was excess paper at the corners. So I tried cutting straight across the corners to remove material, and this helped a lot. Again, I didn’t use the mylar. It’s not perfect, but the chances of pressing a button successfully increases by a lot.
I trimmed diagonally over the corners at about 3mm to 3/16 of an inch from the corner. That seems to leave enough paper to tuck in without having excess that causes more friction and tearing. I think that’s the biggest problem with this—paper doesn’t always stand up to the friction of the press in step “A”. The mylar can help, but only if the paper is thin enough.