This is a remake of the bridge parts of 3dpBurner laser cutter/engraver (by a user demand) . http://www.thingiverse.com/thing:610934
They are 15mm shorter so they can be printed on a UpMini.
For the standard bridges the max object height is up to 50-60mm (depending of your working table thickness ). For these parts the max object height is up to 35-45mm.
They has not been tested, please report back if they work as expected.