DIY acrylic hood (lots of pics)(and words)

bzc

Conjurer of Algae
Dec 14, 2008
17
0
1
North Carolina
Blame the plants, not me. If not for the plants, I would not have already upgraded my lighting once. If I had not built a new (temporary) light fixture, I would not have realized how little light my stock hood let in.
01oldhood (Small).JPG
02nolight (Small).JPG
I plan on building a full canopy to match my current stand, but need to upgrade my lights now, not when I get around to the canopy. I had planned on making a glass hood, but glass is sharp and I am clumsy. While browsing around Lowes Friday, I found 1/4" 18x24" acrylic sheets for ~$12.
03sheet (Small).JPG
These sheets cut easily on the tablesaw but the little plastic fibers are hot. And sticky. After a few hours and some 5th degree plastic burns on my arms, I had a nice pile o' parts:
04piecescut (Small).JPG
Super Glue seemed to work best for joining the pieces, and set very fast so I was able to move along pretty quick. The areas that are "boxed out" are to make room for the equipment entering and exiting the tank. The lighting setup that I am switching to has exposed bulbs that I want to keep as dry as possible.
06gluedup (Small).JPG
The slits in the hood (the darker laminate is just there to show the slits) are for the trimable plastic inserts that are on the current hood, allowing me to reduce evaporation quite a bit.
05spacers (Small).JPG
The removable front panels needed handles. I wanted to keep things clear, so I made my own out of scrap. Little pieces like handles are easier to work with while still attached to a larger piece. The curves were cut with a jigsaw with a fine toothed blade.
07hndluncut (Small).JPG
The handles were trimmed for length and the edges were sanded up to 2000 grit. I found out the hard way that this acrylic melts easily on a buffer, hence the sandpaper.
08hndlpolished (Small).JPG
With the handles glued in place and the saw marks sand out of the edges, the rest of the protective plastic film could be removed. Ooooh, sparkly.
09finished (Small).JPG
And finally, the new hood(s) in place.
12inplace (Small).JPG
10inplace2 (Small).JPG
11lftclose (Small).JPG
Tomorrow, I will build a new (temporary again) light fixture. Long term, I plan on building a full canopy that incorporates this hood.
Thanks for looking,
Ben

01oldhood (Small).JPG 02nolight (Small).JPG 03sheet (Small).JPG 04piecescut (Small).JPG 05spacers (Small).JPG 06gluedup (Small).JPG 07hndluncut (Small).JPG 08hndlpolished (Small).JPG 09finished (Small).JPG 12inplace (Small).JPG 10inplace2 (Small).JPG 11lftclose (Small).JPG
 
Nice work!
 
Wow excellent craftsmanship and design! Any warpage experienced after a period of use. I bought the same but largest sheet at Lowes to do my 125 which is 4" long. I just hacked mine out in two long pieces though and after about a week they started warping away from the water. So every couple week I have to flip them over. If it wasn't for my center brace they would fall in the tank when they warp away.
 
Last edited:
great work, love the detail.
 
great job, looks great.
 
I wanted to add that I noticed you did not place you lighting on top of the acrylic yet. Before you do you may want to consider gluing on some longitudinal stiffeners like the box you made for your flow-tubes. Perhaps two vertical supports the length of the lid that houses the light hood and perhaps a new lift handle that runs the length of the lid, all to prevent moisture warpage. Your idea of a full canopy to support the light fixture is probubly your best bet.

You did a professional job which has inspired some idea to get my acrylic hood repaired, thanks.
 
you only used super glue to hold all of together? i thought you had to use special acrylic stuff to weld the pieces together?
 
AquariaCentral.com