Made some updates to the Lego compatible drag feeder and printed out enough of them so you can see how it works.

Made a couple iterations on some new endstops.  I had a design which worked perfectly well, but after printing them out, I ended up redesigning them to be a lot less 'phallic'.  You'll have to trust me on this one.

Reprinted the upper corner joints with more depth, and a more tuned fit for the rods. 

Reworked the head wiring harness so it's cleaner and half as long.

Cleaned up the wiring routing by designing and printing some purpose built cable clips.  I'm tired of cutting zip ties and holding the ribbon with rubber bands.

Made a printed collar which holds the servo cable ends and routes the ribbon and air line.  Now I can't accidentally plug them in out of order and don't need to resort to color coding them.  I have 3.3v, 5v, 12v, ground, and Beaglebone pins directly connected there.  Getting a plug out of order would definitely destroy something.

Reworked the drive spools, using some of the carbon fiber rod I had left over from the push rod.  Also figured out the perfect way to make up the difference between my bearing ID and my shaft OD, which is about 0.2mm.  Wraps of AL foil.  Took about 8.  This also lets me put the knots for that end of the cables inside the spool rod now, and tie those knots later on.  

Sweet. 

Broke the end effector while working on the spool rods when I turned the base over and crushed the joint.  It only is designed for a straight on load.  Reprinted.

Assembling.