Shell for D-Sub type connectors, fully adjustable to your desired needs (because I've thrown in the FreeCAD files).You will need:- 2 x M3 by 15 screws. 2 x M3 Nuts. 2 x No 2 x 9 self tapping screws. Print the shell twice and also print the gripper block twice. Take care that your slicer settings don't over-extrude. Trim off any roughness with a sharp scalpel. Trial fit and trim further as needed (Hopefully not too much). NOTE:- I printed this with an E-3D V6 hotend using the stock 0.4mm nozzle with decent results but I can't help thinking I should have used a 0.3mm nozzle. I wouldn't go smaller though.