Fablab Seoul

JIN`s Fab Academy 2018:
How to make almost everything

week17: Composites(Wild week)

-group assignment-

produce test coupons for your composite fabrication process(es)

We learned to composite the Rodrigo instructor.
I was wearing a mask and gloves safely.
I also bought resin and pink foam.
I cut the burlap in a square shape and grasped the hardness by overlapping 1, 2, 3, 4, and 5 pieces.
The data sheet site of the resin we used.` Website`

1. MY 3D design

I wanted to make a case for the final project. So I worked with a little distinctive shape.
I modeled the flexion on the surface using fusion360
I decided to cut the pink form with CNC by converting box design to stl.
I decided to use the CNC to cut the pink foam.
I converted the BOX dsign to stl and created a toolpath using a program called` Aspire.`
Aspire is a program very similar to Vcarve.

-sequence of the work -
1. Select the job size.
2. Import your own modeling from Appire.
3. Choose your modeling workspace.
4. Set the 3D rough cut.
5. Set the work area to my modeling and select it.
6. The rough cut selected 10mm upcut 2Flate.
7. Set the Pass Depth, Rpm, and Feedrate.
8. Set the Finsh cut.
9. I set the ball cut 12mm.
10. Save and run the file.

For rough cuts, cut with endmill. Because I have to work making it a layer first.
For cutting cut, work with cut ball. During the second task, the rayer's appearance is made more smooth using the ball.

-My mistake-

I made the circle too close to the box when modeling.
It was a good idea to make a pretty curve by moving away from each other or by giving more fillets.
I am sorry that I can not.

2. Using CNC 3D cut and making burlap composites

I decided to overlap four pink foam. I used double-sided tape because the pink form-only glue would take 24 hours.
But I made a mistake here. One layer of pink form is 30mm, but it is 120mm when it is 4 layers, and height can not enter.
So I made it again. And I did 3D cut with CNC. It was a very satisfying job. I trimmed it with sandpaper and a knife.
Resin to make burlap composites. Mask, gloves and scales. Chopsticks, disposable water cups, burlap, and vacuum pouches.
Prepare things in advance! That way, you can work perfectly.
Resin is harmful to our body. Therefore, be sure to read the MSDS.
I was able to easily download `the MSDS data` from `the Rodrigo homepage.`
Mix 2: 1 activator: resin. And burlap used three. I tried the group test, but three burlaps were hard. And wait a day!

Please note: When packaging in vacuum packaging, you must tightly tap the opening!
If you do not, you may get air in the middle, so be careful.

-Download File-

stl file