Fixed Gantry Conversion 4 - Kinematic Z

I've made significant progress with the teardown and rebuild:

• Complete dismantling of the V2-style printer
• Went over all of the alu panels with an orbital sander to give them an even and matte finish
• Drilled the new blind joint holes and tapped the new extrusions
• Rebuilt the frame
• Installed Y-rails, corner brackets, and two panels

In a way, leaving the flying gantry behind is the end of an era for me. Hopefully, I won't regret it.