I'm still in the process of designing and building the new machine. Ive decided to lower my expectations on its scope of work to not include steel of any kind, so I'm using 8020 extrusions for the whole frame and gantry. X and Y will both be 1300mm working area, with 1700mm 25mm rails, leaving room for a tool change fixture on one side, and fixtures/vice on one end.

Anyway, while reading and watching videos about my DMM servos, I came across the Acorn CNC controller. I'm used to Mach 3/4, but I'm not that attached to it yet to not be willing to switch. Cost wise, the Acorn seems like it might be a bit cheaper, though that isnt a factor, than a Mach 4 license and an ESS.

What I really want to know is if anyone has used both products, if you would recommend one over the other? I'm a little on the disappointed side on how long its taking for plugins and updates for mach 4, and more than a little worried that it might get dropped like Mach3 was since its not being widely adopted.