How to Make a Track Saw Guide for a Circular Saw : 8 Steps (with Pictures) - Instructables
Circular Saw Slide Guide (Ttrack use) Track Saw homemade (T-Track) | I made a track saw using a T-track for easy attachment and detachment without changing the structure of the circular saw.
Benefits of a Track Saw (DIY)
Workshop Tip: Square up a tracksaw with an add-on fence - FineWoodworking