How to make a terrarium | page n°3

Computer fans pluging for terrarium 23. Computer fans pluging:
Now I deal with computer fans plugging. Those fans can be used for cooling terrarium air or to breath in warm air from a heat source. I cut the end of plug of a universal 12v adapter then I strip. Then I cut the end of red and black wire (the white one is used for the temperature probe in a computer) of the fans, I strip and I link (red wire with red wire and black wire with wire). On back on the adapter we can generally find en switch with permits to vary the power. More you decrease power more the fans speed decrease. Computer fans pluging for terrarium

Aluminium profiles cutting for terarium 24. Trial assembly:
I cut with the requested length aluminium profiles which will permit to form the bottom ventilation.

construction of a terrarium ventilation 25. Ventilation:
At this step, I form the bottom ventilation. The plan below represent the ventilation assembly which is composed of two aluminum profiles in L shape which cover two other profiles used for maintaining the whole ventilation. Between the front profiles I fix a little piece of glass for increasing solidity and add a better look. The first step is to cut in the profile you see in the image below and remove the equivalent of the thickness of the terrarium panels (in my case 15mm) with a hacksaw and make finishing with a file.

Aluminium profiles cutting for terarium

Aluminium profiles cutting for terarium 26. Ventilation:
I present all parts together for determining their exact length and width to cut. Notice that all ventilation part are in stainless steel for avoiding rust.

Making of terrarium ventilatio Aluminium profiles cutting for terarium 27. Ventilation:
Then when all pieces fit onto the vivarium I fix them together, with the polyurethane sealant I spoke on page n°2.

pvc profiles for terarium glass doors Making of terrarium ventilatio 28. Glass doors profiles:
Now it's time to fix the "E shape" PVC profiles in which take place terrarium glass doors. The first one, the deepest, is used to be on the bottom, under le glass. Others, the deepest, are fixed on side and top. This gap with size, permits to remove the glass if needed, very useful for cleaning.

Terrarium glass doors mounting29. Glass doors profiles:
I cut them with a miter box and I glue them toward the front

Terrarium glass doors mounting30.Terrarium glass doors:
When all is dry i can set the glass size. doors overlap each other on 5 cm and have a 4mm thickness

Terrarium ventilation steps31. Ventilation end:
I finish ventilation details. I put a 4mm thickness glass between profiles (remember the above plan). Notice that terrarium has even receive one paint layer for avoiding finishing problem later

Terrarium glass doors mounting Terrarium glass doors mounting 32. Nozzles holes:
At this step I buy de glass pieces for the top. Be careful to the size, in my case I have two profiles on the top so I had to divide the glass and light panel top in two pieces for inserting them. I drill hole for testing misting nozzles. Drilling is done with glass drill of 10 mm diameter. For drilling glass you must use a spray with water for avoiding warmness which can break your glass panel. Go very slowly, don't press to hard and put under something sweet like a rag. I need about 3 minutes per hole in a 4mm glass.
Take gloves and don't try to stop falling glass because you could cut you fingers.

Terrarium glass doors mounting Terrarium glass doors mounting 33. Reflector panel:
I cut reflector wire. The main function of this is to avoid light blindness when we look at the terrarium. The most fitted tool for cutting this element is a pliers.

34. More to come...: