3 Jaw Lathe Chuck

UPDATE Durwin Pye has sorted out the Scad file so it is now brilliant, Thanks, I have added it to the list of files -not for the faint of heart- After printing some other designs and finding they did not work for me, I decided to have a go myself, So here it is, Please beware, I have made allowances for my own printer so I take no resonsibility if it doesnt work for you. Also, to state the obvious, this is a plastic chuck, it has its limits!. 101mm diameter, 59mm thick plus 25mm jaw height. With thanks to; -Parametric Involute Bevel and Spur Gears by GregFrost http://www.thingiverse.com/thing:3575 -Customizable Spiral Generator by walter http://www.thingiverse.com/thing:58406 for the hard work UPDATE I have printed and tested (sort of) different jaw materials And added photos ABS,......................Best grip Flexi at 85% infill ..2nd -being flexible they grab well PLA ......................3rd, ok but tend to over tighten, which could break the scroll NYLON..................3rd equal Thanks to MrArrow1961 for the reverse jaws thingiverse.com/thing:624814 Check out this awesome assembly video https://vimeo.com/137431844 by yuri9999! http://www.thingiverse.com/make:155862 I have not included the Scad file at the moment, as it is a real mess, if I can tidy it up I will post at a latter date-DONE Thanks to Durwin Pye for cleaning the scad.