Water Ski Line Camera Mount
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This assembly mounts a polaroid cube on a ski line. Allowing full rotational freedom.
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Model information
- Source
- Printables
- Category
- Photo & Video
- License
- Creative Commons — Attribution — Noncommercial
Taking a video from the board of a water-skier is limiting if all you've got is a phone. Shaun Murray tested on on his YouTube channel some years ago and the video looked amazing. No details of the design though…
How hard could this project be. Well, it's not a walk in the park. I decided on the Elon Musk approach to design; only add what you need. The mk1 just had a counterbalance under the rope so the camera always stayed on top and it was also inertia balanced so when you swing from side to side it doesn't spin. Surprisingly that didn't work. Lots and lots of spinning… Then I saw some pictures of people tightrope walking. Lightbulb moment. They use a balance pole. So I added one using a couple of ball bearings, one on each side, mounted on some CF rod. Well, you have to have some carbon fiber in your design somewhere otherwise it's not 21C. This worked first time out. The Camera is rotationally steady but does bounce a little vertically with the rope. Would love to post video but it doesn't look possible.
Note 1. Always secure the camera to the rope with a safety tie. When you drop the rope and it's doing 18mph in the water the camera clips aren't strong enough to keep it located. Upgrade coming for this problem with a revised deflector shield. Or just tell the boat driver to go slower when you drop the rope….
Note 2. This design uses a Polaroid cube in a waterproof housing. Simple and cheap. No auto stabilizing with this basic camera so it has to keep it's own level. The balance pole weight positions are adjustable.
Note 3. I used thin neoprene to ensure a snug fit of the spindle on the rope. My rope diameter isn't consistent over it's length.
Note 4. The rope clamp may need the rope hole adjusting to suit your rope diameter.
Note 5. The balance beam balls are steel ½" ball bearings.
Note 6. I printed the whole thing in PETG with a 0.4 nozzle.
Note 7. I counterbalanced the camera with 4 off M12 stainless nuts. Adjust their position to suit.
Note 8. The CF rod is 5mm OD and 200mm long x2
Note 9. Assembly is using self tapping screws, superglue and epoxy for the CF to PETG joints.