2020-11-14 (Sa) IoTHackDay2020 Cloud Ouija

The list of problems with my old servo attachment was long, so I revised as best I could. One of the biggest problems was that my prints are weak and keep coming out "spongy" or full of gaps, and this may be due to a clogged extruder. On the flip side, this problem forces me to strengthen my design instead of just adding more plastic. My solution was to add a second rod slot behind the fulcrum, so the twisting stress gets divided between the ends, and that should effectively double the durability. Another problem was slipping on the servo, so I decided to mount this on a servo horn, not directly on the servo sprocket.
Screenshot of improvements

As expected, I turned out a couple of weak models, but they fit correctly. I drilled out my rod sleeves this time so the skewer wouldn't split the seams. I ruined my third servo horn when I forced a large drill bit through. The design needs a few more improvements, and my printer needs some service.
Drilling new servo horns

The rest of the posts for this project have been arranged by date.
First time here?

Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7

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