I bought the fence pre-built. It is from a company called Taytools and I really don't have any complaints with it aside from having to use 1 piece of painters tape to shim it so the 2 mdf faces are parallel. It was off by maybe 1/64th, but it was enough to have the piece snag when you're pushing it through. Its square to the table and easy to adjust. Id recommend it. 👍 they have 2 different sizes, I got the 32" model. I bought it after I put the t-tracks in (I was originally going to build my own fence) and I was lucky the distance to mount it matched up!
https://www.amazon.com/dp/B07BZDHY1S/ref=cm_sw_r_cp_apa_fabc_V.53FbQKTM86A
https://www.amazon.com/Taytools-300015-Anodized-Aluminum-Adjustable/dp/B07BZDHY1S I use the t track by powertec to hold it down. It all works pretty good. Adjusting it is a little tougher than I’d like but with some bolts that slide better in the track it will be all good