Homemade CNC Builds (videos)

Have you built your own homemade CNC setup? Did you solve any problems encountered along the way and have those solutions proven out over time? Tell us about it in this thread!

Here are some homemade CNC builds (of various sorts) to inspire you:

Homemade machining cnc 3axis by Tomasz Wilk
https://www.youtube.com/watch?v=1yVsEBg2Stk

CNC Caseira - Homemade CNC - CNC Casera by srscoobydoo
https://www.youtube.com/watch?v=dwx0Or16rmM

Easy to build Desktop CNC Mill by Tom McGuire
https://www.youtube.com/watch?v=6drMZqmyXQc

My Homemade cnc Router by Mark Phelps
https://www.youtube.com/watch?v=pZ0voW7iTeI

Homemade CNC Plasma router with Mach3 and Triple Beast by EDOsVIDEOstudio
https://www.youtube.com/watch?v=Hx5alADaTpI

Homemade CNC by vladimir Fernandes
https://www.youtube.com/watch?v=YA52KyyE8X4

Homemade 5 axis CNC by rambus27
https://www.youtube.com/watch?v=nITLI_WcnuM