Skeleton 3d Print Bed Platform

This is a print bed bracket for the [Skeleton-3d](http://www.thingiverse.com/thing:560353). This allows you to clip a sheet of glass to a spring-mounted platform... this is needed especially if you don't have a PCB bed heater to clip onto.

Also, if you're looking into attaching a [100x100mm silicone pad](https://www.amazon.com/100x100mm-Silicone-Rubber-Heater-Printer/dp/B00I50G4O8/ref=sr_1_1?ie=UTF8&qid=1468701046&sr=8-1&keywords=100mm+heater) to your glass... then I recommend editing the bracket's SCAD to remove the grid. It should be out of the way and the heating pad should clear the platform!

Currently I'm using this with PLA on a [PEI sheet](https://www.amazon.com/Polyetherimide-Natural-Standard-Tolerance-Thickness/dp/B00CPRDDLY/ref=sr_1_1?ie=UTF8&qid=1468701166&sr=8-1&keywords=PEI+Sheet) that I cut with a box cutter. Works okay so far. Mounted on a 4.5"x4.5" glass sheet I got from Lowes.

The corner brackets allow you to have a nut trap to hold it still while you adjust t