I know that the motors are the hardest part to source if you are trying to build a machine from scratch so we’ve been trying to make them available independently for a while and we finally have got them! They’re in the store now http://www.maslowcnc.com/store/
They are the exact same one’s we’ve all been using for a while now, and each one comes with a cable to connect it to the Arduino Shield.
I know this is something a lot of people have wanted for quite a while now so I’m really stoked that we’ve got them. Sorry for taking so long!