The following is my understanding of the company policy on this. Checking in w/ @edwardrford and @robgrz and @Jorge to confirm
As the text of that page implies, the board is intended only for Carbide 3D machines: Shapeoko 3s
While it’s technologically feasible to use it on a machine w/ motors of a suitable current rating, that’s not the intent (Carbide Motion is seen as a strategic advantage which we wish to limit to just our machines).
I’m afraid the upgrade path from an SO1/2 to a 3 is to sell the older machine and buy the newer one — there just aren’t enough parts in common for anything else to be feasible.
Would you say it’s better than the Carbide controller? What software does tinyG use? I only had experience with gShield and Arduino based controllers so I use, UGS and bCNC only. I heard of ChiliPeppr, but I haven’t used it.