== Gewinde == http://de.wikipedia.org/wiki/Metrisches_ISO-Gewinde == Schrauben == http://www.schrauben-lexikon.de/techmas-DIN-1.asp == MF70 == http://www.jarkman.co.uk/catalog/cnc/russmf70.htm == Milling/PCB/3d == http://hackaday.com/2015/02/23/cnc-milling-photos-with-a-halftone-generator/ http://hackaday.com/2015/02/23/twinteeth-the-delta-bot-pcb-factory/ == 3d Printing/ K8400 == K8400 DualHotEnd MOD http://507movements.com/mm_130.html Make the aluminum bed flat http://forum.velleman.eu/viewtopic.php?f=58&t=13316 Parts repo https://github.com/Velleman/Vertex http://www.instructables.com/id/eWaste-60-3DPrinter/?ALLSTEPS == 507 Mechanical Movements == https://507movements.com/ == Backlash and co == http://www.designworldonline.com/5-considerations-for-scanning-printing-and-subtractive-machining-design/