I am installing a 15 inch bed on my Printrbot Simple 1405, and this will cause instability. The Printrbot is prone to tipping when not using the original bed. I created these legs to stop this from occurring.
They use the original screw holes on the bot, you will require 6 longer (20mm) M3 screws.
With these installed, I can put a kilogram of filament on my bed without tipping!
They are printable on the stock bed and are printable without supports.
Print both pieces and install using 20mm M3 screws.
Infill: 25% or more
Layer height: .2mm