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.
4Jaw_Chuck_all-in-one1.SCAD | 18.6KB | |
drive_gear.stl | 2.9MB | |
face_housing.stl | 1.9MB | |
gear_ring.stl | 881.1KB | |
jaw1.stl | 244.6KB | |
jaw2.stl | 231.2KB | |
jaw3.stl | 221.0KB | |
rear_housing_10mm_hex.stl | 945.1KB | |
rear_housing_bolthole_only.stl | 940.2KB | |
scroll.stl | 758.0KB |