Week- 7 Computer-controlled machining
Make Something BIG!!!!!!!!
Thought a lot about it and finally decided to make a big wall mounting.
We have shopbot full size in our fablab.
You will need partworks, partworks 3D, shopbot software in you computer to run the machine and for milling on this machine.
You can do drilling, milling and cutting operations on this machine.
you can find specification on:
Let's start with taking a look on the bits used for different operation and materials.
Refer link given below:
Let's Start with milling then
You will need something in .dwg format for 2d cutting and .stl or .obj format files for 3D milling.
In the following picture you can see the design made in rhino
Here we have isolated the objects in different layers because this job is of almost 1 meter * 1 meter and it is going to take few hours to cut the whole piece hence as shown in the figure we will cut all the layers separately.
If you can get sheet bigger than that and if you want to scale or resize it then you can.
you can find the file from file tab on the top of the webpage and edit it according to your requirement
Step- 1 Starting with Partworks software for making G-code of the file.
Step-2 setting up the basic things before making the g-code.
Step-3 Setting Z-zero and doing spindle warm-up routing
Starting spindle warm-up routine and then giving prepared G-code to the machine.
Always start the spindle first and then start the cutting
Step-4 Starting the cutting
Precautions before starting the cutting:
- Use Safety glasses
- Wear Safety glows
- Wear mask
Step-5 Completion of all four corners in first two layers
Completion of next layer
Almost there to finish
UN-clamping the material and cleaning the bed with vacuum- cleaner.
Finally On the wall
Taps and ramp
Clamping of raw material is very important for safety purpose.
- It should not intersect with cutting toolpath.
Types of clamping the material.
- plastic clamps
- C clamps
- Screwing with bed
- Two side cello-tape.