I'm not a carpenter, so forgive me if this is obvious. Also, I'm Brazilian so forgive my English.
I want to build a table with only 3 MDF plates, but I want the corners to have "45 degree grooves", like this:
Because it's a table, the top plate must be resistant to heavy load, so I came-up with this design:
I want to know if there is another design that has simpler cut, or some kind of steel screws, bolts or whatever steel parts, or some glue that allows me to simply cut the edges in 45 degrees, make some fixing holes and safely attach the top and wall plates together.
It's important to me that externally, both the side and corner cut lines be as thin as possible.
Please provide pictures or hyperlinks. If there is some sort of online manual to do these kind of things, I would appreciate!