Here is a quick update of my progress. I've started the final assembly and hope to have it printing again soon. In this photo, you can see the jig I've used to ensure the rods are all exactly the same length. I found this jig on Thingiverse here: [www.thingiverse.com]. This part works like a champ, and once I've finished adding the last rod, I'll remove the jig and reuse the T nuts to mount the extruder.
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I've continued to make changes to the design. The most recent change is to the effector. I discovered two things. First, my first one warped a little, so I made the ring thicker. I also made the ring larger in diameter so it will be a little more removed from the heat. Finally, I rounded the tops where the joints attach to the effector because I discovered that it was binding here. Once I rounded the tops, I managed to get the full motion possible out of the joints.
I've continued to make changes to the design. The most recent change is to the effector. I discovered two things. First, my first one warped a little, so I made the ring thicker. I also made the ring larger in diameter so it will be a little more removed from the heat. Finally, I rounded the tops where the joints attach to the effector because I discovered that it was binding here. Once I rounded the tops, I managed to get the full motion possible out of the joints.