Superlegastenikers Drag Chain

extreemly light, 10*4mm(inside).
i wanted to install dragchains on my i3.
my first attempt (last picture) (printet only for reserch)
faild on tolerances of .1mm (go figure).
tow beers and 6 minutes of printing later it worked.

it seams others are printing 20 minutes on pieces of 20mm each.
in the same time, those tow were all cleaned up and fit together.
not to forget it took less than a third of the fillament.
1dollar ~ 100links = 1meter

the todrill.slt may requi