I haven't seen a thread on general 3D printing, though there are some on printing razors. I am interested in folks tips on using a 3D printer. I primarily purchased one to print a dozerless mod for my Super Jolly coffee grinder and to print some old style low voltage lightswitch covers. I see Thingiverse as a site for files. Does anyone have tips for using a 3D printer or recommendations on sites for items to print? A bonus if anyone can point me to a file for modifying a Mazzer Super Jolly dozer model to a dozerless model. Thanks.