156:1 differential cycl 8 years Other 1896 934 Kossack 1.75mm bowden e 8 years Other 1999 731 Screwless heart gears 8 years Other 1829 763 Case for bus pirate v3. 8 years Electronic 1688 758 Extruder gears set for 8 years Other 1918 770 Difference engine v2.0 8 years Other 2096 839 Screwless cube gears 8 years Art 2286 841 Poor man's openscad scr 8 years Tools 2205 856 Improved 3dr spool v2 8 years Other 1823 669 3dr gt2 belt sprocket 8 years Other 1753 688 Desktop candy machine 8 years Office 2004 788 Customizable bag clip 8 years Home 2192 770