Hello guys! This thread is only a sumary/first version of my build. As soon I can, I intend to post more detailed information about what I done util now. I share here the Solidworks files that I made, and used to build the machine. But it's not perfect named in english and as I making changes, may I not have deleted some part that is no longer used, as well as the folders are not very well organized. And unfortunately, I have not had time to add the nuts and bolts. The aluminum plates are only 1/8" and to make matters worse is a very soft alloy. Soon as I can, I will look sheets of 1/4" in a better alloy. Is very painful for us here in Brazil to import parts. Sometimes we have to pay taxes in importations (depends on luck), and it's about 60-70% above the price of parts + shipping. So I decided to import only what it's absent here. The openbuild v-slot system and electronics. As I said, this topic is just an introduction, and to share photos and design. It is likely that I have committed many errors in the construction of my prototypes. But I am very excited to get some results that I consider satisfactory, and it is very rewarding to see a project run. For now, here what I'm using: Arduino Uno + GRBL BigEasyDriver Sparkfun Nema 17 400steps I already received some DRV8825, Nema 23 and Balls Leadscrew, that I will use to build a large and strong machine, just to mill all aluminum plates that I use in the little machines. This little machines I will sell here. For that, soon I will launch a crowdfunding campaing at Catarse. As I said, it's very hard to get some things in Brazil with a nice price. A Shapeoko that's a U$700 machine, arrive here at least arround U$1500. Thats is to expensive to our reality. I will negotiate discounts on large scale components buy, and try to locally produce the maximum components as possible, in order to minimize the dreaded importation. Here we go: SolidWorks Files to the last version of my build: https://www.dropbox.com/s/vrqni4xcr61wr3u/Protoptimus CNC.zip Here, the first version: The second version: The first version using V-Slot, with leadscrew, that don't work well. I cound't get both Y leadscrew in perfect parallel, and the nut I got have a lot of backslash. Use only one 8080 in the X axis, made the gantry very flexible. Videos of this version: (I love that video lol) And here, the current version: (sorry this video rotation) (Federal University of Itajubá), also known as UNIFEI, formerly known as EFEI(Federal Engineering School of Itajubá) Any suggestion and criticism is welcome! I look forward to feedback from you, and now take the opportunity to leave some questions. What thickness and aluminum alloy you recommend to make the plates? My priority is to be the easiest alloy to machine, because I'll do them by myself after building a larger machine. Forgot to mention, but soon I will receive a three-phase 0.8kW spindle. I hope it's enough. For now I found local suppliers that have the following alloys in this thickness range: 1100, 1200, 5052, 7075. And lastly, how will I sell these machines, how can I do stress tests, and determine the useful life of components? Which components tend to wear faster?