Hello Scubaru and Everyone,
I have just read your post looking for a compact and portable yet reliable mini 3D printer, and I thought I should tell you about the Createbot Super Mini 3D Printer. It is brand new for late 2015/2016 and has a metal body available in 4 colors, is enclosed for safety and temperature stability, has an SD card slot and display and runs on Marlin firmware and uses regular 1.75mm filament with no special spools or other proprietary requirements. I have just become a reseller for Createbot in North America and the price is very competitive with both the M3D and Printrbot. I have made an unboxing review on Youtube at https://www.youtube.com/watch?v=34ne4oC83yI. If you have any questions please visit www.3dcreator.ca for contact info. Thank you.