In this project, I wanted to make an adaptive wood chair inspired by the Tripp Trapp chair. I used for that some basic tools like: circular saw, circular sander, electric screwdriver and jigsaw. My design is little more "angular" than the original, and my be less confortable, but it's cheaper !
In first, I made a quick 3d modeling in only one part (no assembly, it's faster!). With that modeling, I had an overview of the project, I could choose all the components I have to buy.
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I bought material for two chairs, the cashier made a mistake, in fact I have around € 80 for that (I have 2 childrens)
- 2 cleats 20 x 10 mm x 2m (FR : tasseaux)
- 2 round aluminum tube 8 mm x 2m (FR : tube rond)
- 2 steel threaded rod 8 mm x 1m ( FR : tige filetée )
- 1 steel threaded rod 10 mm x 1m
- 1 plywood sheet 10 mm (FR : contreplaqué)
- 2 crude plank fir 30 x 150 mm x 2 m (FR : planche sapin brut)
- 10 blind nut 10 mm (FR : écrous borgne)
- 200 screw 3 x 25 mm (FR : vis)
- 1 furniture oil (FR : huile meuble)
Missing on my list above :
- 6 blind nut 8 mm
- 6 washers M8
- 4 wood screw 4,5 mm x 80 mm
- 10 washers M10
- wood glue
- adjustable pliers (FR : serre joint)
- circular sander disk 40, 80, 120
I make M10 screw with threaded rod, it's really cheaper! I cut it with an electric disk cutter ("disqueuse" in french). Must tighten the nuts on the threaded rod before cutting it. By unscrewing the nuts , it straightens nets. The nuts will be easier to screw after.
Crude plank are twice cheaper, but you have tu sand them. I Cut in length the 2 crude plank fir, sand them with a sand disc of 40 in first.
Screw cleats are quite longer, cut them in first, then drill them. Use a free cleat to make the gap between two cleats (top left on picture). When all cleats are screwed, cut them with circular saw.