2.20.2016 Design update

       Update on the MK-X Delta Printer

I've been working on the carriage design for V-Slot rails and the Delta Arm carriage that attaches to the rail carriage. It is still considered an alpha design and I am still in the midst of improving the design, but here are some photos and a bit of background on why I did what I did.

First up: The Rail carriage:

          The V-wheel carriage was subtly modified for M4 button screws and slight width adjustments to get a better fit for the V-slot wheels. This was modified from David Crocker's Thingiverse modification of Steve Graber's original design 

         This is the actual belt and rod carriage designed in OpenSCAD. This was the first printed iteration, but there were quite a few design iterations before reaching this one. However, The second I tested it, I realized there were quite a few improvements that could be made. It is a 4x screw mount when the carriage only requires 3, the belt gripper is slightly out of line with the idler pulley at the top of printer, and the belt tension screw mount needs to be adjusted. 

         The middle portion as a trapezoidal stabilizer that acts as a variable belt tensioner slow for the piece below to allow for screw adjustable tension. This will probably be modified to better suit the design and for overall efficiency.

        This is the adjustable belt gripper section, it is similar to the belt gripper on the actual carriage except it runs on a trapezoid shape peg so that it reduces any twisting forces when the tension is being adjusted in the carriage via an m3 screw.

That is it for now. I hope to have some more updates soon.