Modified Open Drag Chain

This is a modified version of the Open Drag Chain.

This closes the unnecessary through hole which doesn't make sense for FFF printing.

The result is the part prints slightly faster and slightly cleaner.

Original author requested I take the STL file down.

"RamonSeda - and i do not give you my consent to remix this so take it down"

I've instead uploaded an OpenSCAD file which will fill in the blind holes; just put it in the same directory as the link file, render and re-export.

Actually the OpenSCAD file is nicer because it lets you customize the through-hole wall thickness; you probably want it around 2x your nozzle width.