7- Computer-Controlled Machining¶
Assignments¶
Group assignment:¶
- Complete your lab’s safety training
- Test runout, alignment, fixturing, speeds, feeds, materials and toolpaths for your machine
- Document your work to the group work page and reflect on your individual page what you learned
Individual project¶
- Make (design+mill+assemble) something big Learning outcomes
- Demonstrate 2D design development for CNC milling production
- Describe workflows for CNC milling production
Learning outcomes¶
- Demonstrate 2D design development for CNC milling production
- Describe workflows for CNC milling production
This is my roadmap for this week here
Group Assignment¶
For this we learned how to use the cnc machine
Physical Conmonents¶
(this is the cnc we have in out=r lab!)
Firstly, we have the switch for turning the cnc on and off.(make sure to turn on the fan for collecting the dust as well.)
Then, we have the clamps to hold the wood in place while its being cutted.
Theres these 3 buttons for the emergency stop(red) The start button (green) and the restart button(blue)
This is the app we need to start the printing and make the necessary changes.
Settings¶
First of all, open a application called vcarve and then:
- Download the vector file of your design
- Open vcarve and click on file-import-import vectors and chose your design files
- Than look at the tool bar towards the side and click on this icon
- After clicl=king on the above icon, you’ll entter these settings. With this,we have to change a few things, which anr highlighted below.
- with the add tabs to toolpath settings,we have to change the number of tabs we want(usually I use 4)
- After changeing and following it out till here, we have to save it
- Then make sure to save the toolpath
- Name the file and save for using with the shopbot application
And thats how you use a cnc machine!
Individual Assignment¶
For this assignment, I decided to make a shelf to try out the cnc machine . I searched up refrences to see what type of shelf i wanted to make and came across a video of a shelf with an intresting design.
Heres how it looks:
I will be adding less units though, and a solid back to make sure its more stable
Designing¶
Step 1 - Make a sketch of how you want it to look - specify the measurements
Step 2 - Create parameters
Step 3 - make the Base of the design
Step 4 - Add new body
- Extrudeing the design can also be in the negatives depending on your design
- Your design will end up joining if you don’t change these settings, so make sure to change it to new body to add the sloths later on.
Adding sloths¶
Step 1- Rectangular pattern
- Use this tool to help you allign your sloth in the begnining.
- Make a sketch with the dimensions of the thickness of the material and the lenght you want your sloth to be.
- this is what you need to select to be able to amke the pattern for your sloths
- Now, select the edges of the rectanglur pattern you made and select the direction of the pattern.
- Pull the arrow in the direction of where you want the patter to be.
Step 2- Extrdude the teeth
- Select the faces of each of the sloth(keep pressing shift to select all) and then extrude it(you can click on e on your keyboard as an shortcut)
Dog bone¶
The end of the mills of the cnc machine are round and circular, so the
You can download dogbone[here]https://tapnair.github.io/Dogbone/()
Step 1- Download the file
-
You can find the link to download [here] (https://tapnair.github.io/Dogbone/)
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Download the link, unzip the file, and then follow this tutorial to be able to install it as a tool in fusion 360.
Step 2 - Select the edges and use the dog bone tool to make curve like dents in the inward edges.
Final design outcome!!
Printing and assembling¶
Follow the group assignment to learn how to use the cnc macjine. this is how my final outcome turned out!
