Thanks!
The dimensions are around 8 feet high by 8 feet long by 4 feet wide. Once the support structures and wheels are included, it is close to 9 feet tall and is just about floor to ceiling. There are glass panels on the sides as well as on the front, the glass on the front being around 5 feet high and laminated (which cuts out sound and is better insulated than single thickness glass).
The mock rock 'cliffs' were a fairly involved process, too involved to describe here, but in brief:
1. I carved a model rock out of dense polyurethane foam, as I couldn't be bothered trying to find a real rock formation that suited my very specific space and basking platform requirements. The model was carved in such a way as to look like a cliff whether right side up or upside down (see 5)
2. I made a latex mould of my model rock
3. I made a fibreglass support mould (ie mother mould) to support the latex. This was made of several pieces that could be bolted together or taken apart easily
4. using the latex mould, I built my rock out of pigmented polyurethane elastomers, throwing sand and broken rock into the mixture where appropriate. For extra strength, I filled in the back with expandable 2 part polyrethane foam and put some structural 2x4s in the foam (see 6)
5. I made 2 versions of the rock, inverting one so that I could have a cliff on either side of the tank's back wall
6. I bolted the mock rocks to the enclosure's wooden back panels, making sure the bolts were anchored into the 2x4s in the back of the rock. Using smaller moulds of flatter rock surfaces, I added rock above and below the cliffs. In the photo I am attaching one of the cliffs to the wooden back panel. Towards the top of the photo you can see bare wood that would later be covered with the flatter rock surface
Building a mould and mother mould is excessive for a one-off project, but I wanted to learn the process anyway and thought there was no better way to learn than to produce something in the process. There are many ways to achieve similar results without this involved a process.
As far as costs are concerned, I really hate to price my hobbies for fear of developing a heart condition. Let's just say it was a 'love job'. However, if I were forced to guess, it would have amounted to roughly $US1500 (going by the exchange rate of our currencies at the time I built the enclosure). That doesn't include labour costs, of course, being a love job. The laminated glass was given to me, otherwise that would add a huge additional cost to the total
Although I am very pleased with how it turned out, if I were to do it again there are a few things I would probably do differently that would shorten the construction time and reduce the cost.
