Downloadable assembly instructions for all HobbyCNC boards and kits. PDF format.
HobbyCNC PRO 4-Axis Rev 2
HobbyCNC PRO 3-Axis Rev 2
HobbyCNC PRO Rev 1
This board has been replaced by the Rev2. 3 and 4 axis PRO instructions
If you are more visual, see the detailed instructions, with step-by-step photos on Instructables.com