After finding a corner miter tool for sale on-line the other day, I stumbled upon 2 DIY miter tool instructions. The first one from here
http://cailun.info/categories/5-Tools-Techniques/P5.html
and then this one (it’s in Spanish but mostly in pictures)
A couple of months ago, I wrote about a corner miter tool I saw on-line. A couple of people have asked if I knew of a pattern for it and a reader on Facebook suggested this plastic one. Then the other day I saw Claudia Squio (ColorWayArts) corner miter tool, made from stainless steel. Much more durable than anything I can make from book board.
She calls it a “cartonnage tool” — cartoonage is a new word for me. Wikipedia says “cartoonage,” as a technique, is “similar to papier-mâché, (where) scraps of linen or papyrus were stuck together with plaster or resin and used to make mummy cases and masks.” On her blog, Claudia says “Cartonnage, originated in France in 1800s, is the art of making decorative and functional items out of cardboard, covered with fabric or paper and it is a creative and stimulating hobby.”
I stumbled on this little “tool” made from book board that would make trimming bookcloth corners much easier. It’s from a blog called The Design Loft (the page I found is here). The blog says:
this is what was fondly called the corner-matic in the conservation lab. It is used to cut the corners of book cloth when making up the cover. I think the Banister book has instructions for something similar, but I much prefer this design. This pictures shows the corner-matic face up so you can see how it is put together. To use it, place it face down over the corner you want to trim and you will get a nice 45 degree cut the right distance from the board corner.
(UPDATE: see other posts about a corner mitering tool here)
