Frag Rocks

3D printed Frag Rock for the reef aquarium.

I was recently searching for 3D printed frag rocks, and sadly I wasn't very fond of the ones I found. I wanted some more exciting curvatures. So I decided to make my own. These are meant to go in the sand or on a rock. If they are on a hard flat surface the frag plugs won't seat fully into the "rocks". They are hollow underneath so they do not displace much water volume.

There are three versions currently:

Standard V2 - I have increased the size of the frag plug so that it should be able to fit any frag plugs at all. The standard should fit most frag plugs, but there are some with a wider base (~12mm that wouldn't fit. I also increased the size of the plate to 25.5 to ensure it'll fit everything.).

Standard - Should fit most standard frag plugs. They fit most of the ones I have been able to test. ( < 9.25mm Stem & < 25mm Plate)

Nano - The Nano uses a smaller frag plug. I based it off a measurement I found on Marine Depot or BRS... can't remember which. ( < 9.25mm Stem & <16mm Plate)

The frag plugs do not follow the curvature of the rock either ( was very tempted to do this but I am going to use ceramic plugs instead to help way it down.)

I plan on releasing many more of these with unique designs. If there's any specific preferences anyone has please do not hesitate and I'll see what I can cook up.

Print Settings

Printer:

Folgertech i3 Prusa 2020

Rafts:

Doesn't Matter

Supports:

Yes

Resolution:

.10

Infill:

15

Filament:

Black

Notes:

The rocks "themselves" do not float with 15% infill and PETG. The plugs will float at 15%. I found the plugs started sinking somewhere around 75%. Of course if you put a little bit of rock or if it's a SPS it'll probably sink before 75% infill.