Welcome to the forum! You can try Automation Technology, Inc. I bought from them when I built my CNC years ago and have since bought a new spindle, good company.
Were those legs and uprights for the 4030? Any chance you still have the files? I bought a 600x600 extension kit but I don't have the 4030 to upgrade so I am trying to find the parts to finish the complete frame.Hi I have Proverxl 4030 I've upgraded twice size wise. I ended up with box full parts. I milled some gantry uprights and legs now I have another machine. I ordered another control box from sainsmart but they currently don't have nema 23 in stock. My question is doesn't anyone know a direct replacement that I could use?