Lego compatible strandb 8 years Art 2074 769 Greg's wade extruder wi 8 years Printers 1748 740 Nema 17 bowden extruder 8 years Other 1777 738 Internal filament guide 8 years Printers 1167 540 Motor mount extruder 8 years Printers 1910 737 Groovemount box for pla 8 years Printers 1752 771 Geared peristaltic quic 8 years Printers 1843 717 Prusa i3 direct drive b 8 years Printers 1695 626 Belt tensioner for prin 8 years Printers 1512 660 Spool spindle cap for 2 8 years Printers 1661 648 Quick-fit x carriage an 8 years Printers 2066 736 3-way quick-fit extrude 8 years Printers 1402 660