Hydraulic Robot Arm 6-Axis

This is a 6-axis hydraulic "robot" arm. The axes are actuated with 10ml syringes which act as cylinders, and 1/8" inside diameter flexible tubing. I saw a few versions of these on social media, mostly made out of cardboard or kits with laser cut wood. I thought it would be cool to make my own with printed parts.

As you can see below, getting this thing to work was a process. I've added a counterweight (fill with sand) to help it hold position a little better, but it's not perfect. All 6 axes