Sarrus Linkage Mark III

thingiverse

I'm constructing a Sarrus linkage-based 3D printer, aiming for a cartesian mechanism without lengthy rods and bearings. I've built three Mark III models arranged in x-y formation, able to move over a 105mm square area potentially carrying an extruder. The motors are DC units from inkjet printers, controlled by servo mechanisms using quadrature optical encoders and optical strips also sourced from the same printers. The instructions include creating parts such as 2 end pieces, 2 armatures, 3 spine pieces, 6 hinge plate types A, 6 hinge plate type B, 1 motor plate (custom-fit), 1 belt plate, 1 pulley plate, 1 opto plate, 1 DB9 bracket. Further steps involve trimming, drilling holes, etc. Mount a stepper motor with a belt (not shown). Finally, assemble and connect three units as demonstrated. Details for additional tasks are available upon request.