Jack pistons and cylinders for excavator arm parts
thingiverse
After making Sevak's model, the piston and cylinder eyes wouldn't fit between the ears on the stick and boom, so I did some re-engineering and came up with these. The eyes are narrower and fit and the piston rods have a smaller barb which makes them easier to insert. Also the cylinder holes are smaller so the pistons don't rattle around like the originals. So far quite happy with Sevek's model. I drilled the cylinder holes with a 3mm drill just for that little more clearance and elongated the piston hole just a little so I could insert the piston at 90 degrees and then turn to be inline with the cylinder.
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