3lb grapnel style anchor for float tube fishing

I needed a small anchor while float tube fishing in the harbor to hold me from drifting due to small currents (tides) and light breezes. After a little research, a 3 lb anchor seemed to be about right for this.

Having several 1 1/2" pvc (~40 mm ID) pipes laying around I thought about 18" section filled with concrete would work fine. Since the harbor is mostly sand bottom, I added some legs to grab the bottom a little better.

I glued the bottom cap into the pvc pipe using gurilla glue. I mixed up concrete and poured it into the tube, filling it almost to the top, allowing room for the printed top cap. I let the concrete set for 1 day before gluing on the top cap.

The legs are hinged onto the bottom cap ears using 1/8" nylon bolts and nuts.

I use a 50' line to tie the tether the anchor to the float tube. The harbors are usually 25-35 feet in depth.

I store the anchor in the arm of the float tube. The legs are folded onto the main body.

The 4 hinged legs on the bottom cap manually expanded before dropping it in the water.

I was asked "why do this when you can buy an anchor off amazon for ~$12.00"?

1. I had the materials already.
2. I get something exactly what I want.
3. Metal and saltwater don't like each other. This will never rust.
4. Because I just like doing DIY stuff.

Print Settings

Printer Brand:

Ultimaker

Printer:

Ultimaker 3

Rafts:

No

Supports:

No

Resolution:

200

Infill:

100

Filament: inland PETG clear