Introduction

For this week we need to make something big. I tried shopbot and some other "Cutting Machine"(I dont know how to define them..)to make something big. Because i am very poor at 2D design, the first big thing i was collaborate with shiyao. And then i made my own oldsmobile

First Big Thing

The first big thing designed by shiyao. I was running the machine for him and learned how to use the shopbot.
To cut sth, you need to design it. You can use the v-carve to deisgn something directly or use AutoCAD or some other 2D design tools.


The geometry of the piece had a slot to fit in another piece, in order to obtain a proper fit, the slot was modified in the corners allowing the other piece to go in all the way. The result was much more satisfying but unimpressive for being such a simple geometry.
We design the chair in the vcarve. It is very easy to use. After finish drawing the image, all you need is to calculate the toolpath in the software. Then you can send it to the shopbot.


And here is the 3D view of the design.


The cut was simulated before sending the router to cut; this allowed for verification of the settings, cutting path, compensation options, etc.
Here is our design file.
chair.

Here is the final image of our chair.




To run the shopbot there are several safety rules. Always remember to put the hand on the "stop" button.

My car

Then i design a oldsmobile using AutoCAD. Here is my design images.


Then save as dwg file and directly export it to vcarve.


Here is 3D view.


Here is my design file.
CAR.

Here is the final image of my car.






Problems

We have encountered a really strange problem when we test the shopbot. At first we cannot run the shopbot at all. After go through the documentation, we found that the shopbot software can only be runned at windows 32bit English edition. That is the only way to run the software.
When the two-dimensional design, three-dimensional map of how to convert a two-dimensional map is the core of the design. We need to establish three views, view to the promotion of three-dimensional design drawings.
The final effect of wood still looks very rough, mainly because of the adjustment head position when there is no will on the z axis zero set up, leading to the final did not cut through some planks. I used some simple woodworking tools made of polished, so the entire final effect looks a little rough. This requires further adjustment of the head shopbot zero.