Demountable-Expandable Table
Introduction: Demountable-Expandable Table
Hello everyone, I want to show you this table that I designed and built, I wanted to do something a little different, and after many sketches on paper I got something that I liked,
I wanted it to be a large and sturdy table, but despite this is not very complicated to transport it, with this in mind I tried to make it dismountable, and something I also wanted to try is to make an expandable furniture, so this was also the opportunity to try it. Thinking about materials... I really like the combination between wood and steel, so I definitely applied it here
Well, this is how i did it.
PS. Sorry but my english is not the best, I will try to explain as best I can :)
Supplies
Materials
- 15mm Plywood
- Wood planks
- Steel square bars (3/8")
- Steel flat bars (1" 1/2)
- Tee steel bar ( 3/4")
( These are the materials that I used in more quantity, the others I will show as I explain)
Power Tools
- Welder
- Circular saw
- Angle grinder
- Drill
- Router (opcional)
Step 1: Concept
This is the basic idea, four wooden legs (C) that are joined to the metal structure (B), this structure is joined in the center, when it is disassembled it can be folded.
Above this is the tabletop, which is divided in half (A1 & A2) each one is attached to the metal structure with a rail, which facilitates its assembly and disassembly. Each of the two boards has an internal rail allowing its upper half to move and increase its surface. (approximately 35% more in total)
P.S. I used mainly the metric system, but I will mention some things in inches because that is how it is sold locally (bits, some materials, etc).
Step 2: Legs
For the legs I used a wooden plank 20 cm wide and 3.5 cm thick. 787
I drew the pattern on the wood looking to save some cuts.
The legs are attached to the metal structure with two screws each, I will make the holes later taking as a reference the metal plate that presses them.
Step 3: Countertop- First Steps
The first thing is to use the plywood to cut the different panels, the drawing represents the four pieces that form one half, the width I used was 90cm.
Some pieces have an inclined cut, they are 55 degrees (the maximum that my circular saw allowed), basically it serves to easily move the upper panel over the lower one when you want to expand the table. At that time I tried it and that inclination is enough so that the top panel can easily go up and down.
Step 4: Bottom Panels
With wood glue I joined the two parts of the lower panel.
This is the easiest, the upper one has more parts ;)
Step 5: Top Panels - the Idea
The upper panel by itself can move over the lower one, but it needs something that gives it a little more stability when expanding the table, this is where I use the tee, this profile does two tasks:
1. It will serve as a rail to place a spring that holds and maintains both panels together, but without losing the ease of movement between them. 2. It will serve as a "core" that keeps the plywood panel rigid, preventing it from bending under its own weight.
Step 6: Top Panels - the Tee
This step is a bit tedious, first I need to cut a part of the tee so that it has the same measurement as the thickness of the plywood, so that it does not hit the bottom panel. Now it is necessary to make a groove with the grinder where the spring can move. The other end of the spring will hold onto the bottom panel.
I made two for each panel.
Step 7: Top Panels - Plywood
To embed the tee in the plywood it is necessary to make some cuts and grooves.
First I made a groove of the same thickness as the tee with the router, so that it can be flush with the board, then in the middle of this groove I cut the board into three parts to be able to embed the two tees. Along the entire length where the spring is displaced, I widened the cut a little more.
Step 8: Top Panels - Join All
Now to rejoin the board with the tees you have to do a few things.
First, so that all the parts are well joined, I had to improvise some small plates with a hole, which I welded to the bottom of the tee, in this way the boards can be joined and fastened with a screw. 599