The thing I wanted to do on the something big project is furniture design, which could be
used at home or outside. After spending time on different designs of chairs and tables I
have designed a chair and table that go together. I have spent too much time on this. But I
am happy because the more I work on different designs the more i analyse the shapes and
problems on the functionality of different designs.
The second was a chair design which was so aesthetical and within few lines I make compositions
but I left this one because in this project I want to make a very a very good design not only interms
of shape but also function and safety. I want to make a design which have the quality of multi
purpose, press fitting method and simplicity. After making the model both in 3D,2D and model
finally I shifted to the design I thought that is nice.
When I started to make this tremendous design which is deprived from the Ethiopian traditional
design and made it to be the first one. The first design is good visually and also portable but for
using the machines and materials here in FabLab I needed to come up with new idea besides
Ineeded to develop it inorder to make it have minimum parts without lacking the good strucure. The
first idea is to make it have two xy direction but next i was inspired by Benitos idea of finger
construction, thats how the idea developed and made this final design.
Making this chair design is interesting for me because I needed
to deal with the press fitting method, mechanism, functionality
and its appearance as well. On the design process Tomas was
saying I should make it dual purpose and portable. So after
defining the shape I have made a rough drawing on illustrator
and then exported it with jpeg and desplayed it in view port
background on the left window, then traced it, give the precise
measurments on modeling After modeling I animate it by pivot
point to see how it could work/fits for construction method. I
needed and adjustment inorder to make it fit will. After making
the 3D model with 3D studio I saved it as jpeg/F9 and make a
drawing and scaled it for the small model and the big one.
CAD -Material Utilisation
Tomas suggests me to make the pieces fit on one 1220x 2440mm Mdf. It took me hours
to see which one is the best position and finally did it. Now it is time to produce it. I have
designed a chair before but never produced it/especially by myself and using CAM, After
saving this file with dxf. I opened it on the enroute.
Model Test then Big one:
Before I make the big one I make a model in small scaled size with a small laser because I
was worried its not going to work.The opened file in enroute has been reviewed, select the
material size/the longer size for the width and the shorter for length. On the right tool. With the
help of fellow students I printed it. Astrid has made a very good tutorial of how to use it. It was
so helpful. After setting the drawing on 0,0 position of the bed I put my mdf on the multiCAM
Laser machine. Next I opened the layer manager tool and select the cut and engrave layers.
From go to machining upper toolbar I select output. Then pressed to file and send the print/cut
job to the machine. I am glad to know this because I compared it with Ethiopia. How much time
,labour it will take to make one chair,and wondered the technology. If it wouldn't have any side
effects how good will it be. Anyway I would like to thank the person who invented this laser
cutting techno. Within few buttons I Saved it/Sent it to the multiCAM laser machine.
On the CAM controller I opened my file I sent from the computer. Since the material I select
is mdf, 19mm thickness and select it and used the speed and power from itself. Then
pressed cut/action. First the power was 75 percent so I thought it didn't cut through to some
parts, for this reason I resent it again inorder to make me able take it out easily.
Step 1 Step 2
Step 3 Step 4
After taking out the pieces the 1st step is to put the metal rod on the top,On 2nd step join the back leg on the middle.
The third step will be putting the seat parts on the tip of the back front part. *put small pieces between each part.
Chair or -?
Step by Step changing the lounge bed to chair, which could be used for beach or recreation.
I am glad I made something big which is big enough for me to sit and sleep on. The
material I used is wood, but would be better made with lighter materials like foam or
others. The mechanism works well and aesthetically it is good because all the forms on
it are curves to give comfort and support of a human body. The chair part angle needed
some adjustment because I shifted the backlegs turning point to the lower part which
makes it a bit straight. If it is going to be a little bit higher it would be perfect. I made
everyone try to sleep on this as a lounge bed and it is really comfortable!