Zero-Clearance Grid Drill Guide

Here's a drill guide I designed for drilling pilot holes for an MFT (Multi-Function Table).

This will let you align grid lines on each corner as well as providing visual windows as a secondary alignment.

Note: For anyone using this to create their own MFT, I have also created a drill guide for 20mm Forstner bits. You can find it here: https://www.thingiverse.com/thing:3380006