PRO Slab Flattening Router Sled & Rails – stuff2makestuff
Router Sled Plans for Flattening Slabs - Etsy Sweden
Amazon.com: Slab Jig – Router Sled for Woodworking – Levels Wood Slabs Up to 64 Inches Wide! Portable, Durable, and Easy to Adjust! Great for River Tables and Home Improvement Projects! :
Router Sled — Build Under an Hour! - YouTube
My $100 router sled! Effectively a 32” jointer, changing my whole wood shop game. : r/Tools