Promega Z Slider Nutsert Remix

This is a remix of the bed sliders that the brand new M3D Promega uses. The stock slider used simple hole to screw the bed on, which work ok but fail easily. This addresses the problem by creating a cavity perfect for these brass inserts:

https://www.amazon.com/gp/product/B077CHDSTR/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

Shoutout to @talryyn(John) on the Promega board who turned me on to these. Put one onto the end of a soldering iron, press it into place, and it stays put, elegant an