So what have I learned over the first five days of owning a Robo3d R1+ ....... This printer is so cool! Way Cool! Asking tech support on the first day (after 3 hours of printing) for help with a jam/clog was not very helpful.... Thanks to Marquis Johnson (aka- Novice Expert on YouTube, Please like and follow him!) https://www.youtube.com/channel/UCBGNc_mOP_amZNrNj6lAwHg His video explained how to fix it and I was back up and running in any hour. Lesson learned be very careful changing filament, if it breaks below the hobbolt it's a pain. Trying to print a 6" cell (ball) with no support does not work (it kept falling over).... Not sure why I thought it would... A few quick changes and a base was added and hours later it was done. http://www.thingiverse.com/thing:1005736 Remember to check all your settings. Screwed up a few. Large prints are scary.... I have already tried 9hrs. It's like Christmas morning when you get up to fine it all done and looking great. Making your own mods for your print is so cool. Feet http://www.thingiverse.com/thing:868246 Filament holder http://www.thingiverse.com/thing:216117 Cable holder http://www.thingiverse.com/thing:990383 8. I'm getting better prints from MatterControl that Cura...... Maybe because I don't know what I'm doing. Going to have to work on that.