For those of you who may not know about Jay he has a website for Jay's Creations and posts videos of his projects and interesting woodworking stuff he finds on the web. Currently he is assembling a 4' x 8' or maybe 10' CNC machine and documenting the process and testing. Thought it might be a good bit of info for those looking to get into this especially when assembling. You can Google Jay Bates or visit this site and this link takes you to his chronicle listings of everything he's posted since 2013 starting with the latest. There is some very good information in there.