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Print a nori seaweed clip for your herbivores with a 3D printer

By Shane Graber - Posted Jul 09, 2012 11:00 AM
Seaweed clips are a convenient way to feed herbivorous fish like tangs and rabbitfish. While they are relatively inexpensive to pick up from your local fish store, it is convenient to just print them instead.
Print a nori seaweed clip for your herbivores with a 3D printer

The final 3D printed nori clip printed in Natural colored ABS.

Nori clip rendering
Nori clip rendering

This particular project was pretty easy all things considered. I wanted a simple nori clip that I could just suction cup onto the side of a tank. Marine Depot and Premium Aquatics list simple plastic nori clips for $2-$3 and they are 100% plastic. Fortunately I found something fairly similar on Thingiverse designed by J_Hodgie for this project.

This particular clip printed in three parts: two grippers and a spring clip to provide the tension. The two things I did not like about it, though, was it had narrow clip ends and that I needed one of the ends longer with a hole in it to accept a suction cup.

I downloaded the file and imported it into Sketchup (which I have talked about before here and here). Using Sketchup’s Push/Pull tool, I widened the clip ends by 10 mm on each side and lengthened one of the clip ends and added a suction cup hole. I then exported all three parts for printing. 30 minutes later my clip was printed and ready for assembly. After a bit of clean up with sandpaper, I inserted the clip and suction cup and it was ready for use.

I've uploaded the design files to Thingiverse so that others can print their own.

Give me a challenge: what would you like to see me print?  I want your ideas!

Author: Shane Graber
Location: Indiana

Shane has kept saltwater tanks for the last 12 years, is a research scientist, lives in northern Indiana, and is a proud Advanced Aquarist staffer.


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