Magnetic Building Board 90 Degree Triangle Brace

This is a 90 degree triangle used to brace uprights on a magnetic building board for model builders. It uses common cabinet magnets. One source is here: https://www.allelectronics.com/item/mag-123/cabinet-latch-magnet/1.html

EDIT: 02/04/2018 The above magnets appear to be sold out. Regular ceramic rectangles will work too. A source is here: https://supermagnetman.com/collections/fer-rectangle/products/rect0750c-20?variant=29741050307

They are listed as "0.770" (19.56mm) long x 0.593" (15.06mm) wide x 0.118" (3mm) thick". Use two sandwiched together in place of the above latch magnets if you can't find the originals.

Glue the magnets in with 5 minute epoxy.

See my magnetic building board lever clamp here: https://www.thingiverse.com/thing:2540725