PAUL GRAHAM's latest activity

Using plywood on three sides would make a strong support and significantly simplify the design. Most commercially available aquarium...

Structural plywood on edge is lower cost and more rigid than wooden beams. Salvage some shipping pallets that have a sheet of 5/8" =...

This paper just showed up: Intermediate stages in the origin of metabolism at a phosphorylating hydrothermal vent It is open access and...

Herman: The aquarium does carry the load - empty. Put 640 lbs of water in it, if the support is not distributed evenly, the glass panes...

There's a reason why my drawings look like that.

The above drawings should have sufficient info to convey what this thing is and how it's gonna get made. berkeman thought a sketch would...

Well you're right about that berkeman. After today's input I am starting working drawings. I'll have something as you suggest in a...

Certainly not a substitute for glue. Joints are simple lap overlay. Contact surface area where upper platform frame attaches to leg is...

The base of this space-frame surrounds the perfectly vertical legs, 3" x 5" in section, with 2 x 4, having a perimeter congruent with...

Welcome to PF, Paul. :smile:

Actually, a 5/8" MDF panel goes on top of the space-frame and a 0.2" high-impact neoprene mat goes on this. The aquarium bottom is...

That should be more than enough. When laminating be sure to use enough glue and screws so that you get good “squeeze out” pretty evenly...

There are a lot of online calculators you can find. Those will be easiest to use. Here is one...

Baluncore; As stated this is not assigned study, but a hobby project. I am a 78 year old retiree whose education is in historical...