14th COMPOSITES
step1: Design by SketchUp

At first I wanted to use Roland SRM-20 to Milling the 300mm×300mm×100mm foam, then I'll get my arm armor shape, and I could make my arm armor by composites. So I spent a lot of time to do the design.

 After the design I exported the STL file From the Sketchup and input the file to Fabmodules.

But when I press the caculate, the page of Fab Modules was collapsed. I tried many times, and failed each time. Occasionally it's start to calculations, but it takes a couple of days to complete just ten percent, So I need to make a model that doesn't need a lot of calculations with Fab Modules.

plan B step1: Design the shape by SketchUp

I want to make something like the Wolverine's steel knife. It's doesn't need to use Fab Modules to calculate

step2: Design the layout with AI
step3: Cut the 2mm plastic foam board with Laser cutting machine

I use 2mm plastic foam board as material.

 

 In my first cut, I set the speed as15, power as 18, I got the No. 2 Results, the plastic foam board's back has melted.

 

So I Improve the speed as 75, then I got the No. 1 Results.

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step4: Measure the weight of epoxies and Start working

We have 2 kinds of epoxy: main resin and hardner. The ratio of the main and hardner is 5:1.

       Material and layer

 

  1. Towel
  2.  Polyethylene film
  3. Green chemical fiber
  4. Foam plastic board (2mm)
  5. Green chemical fiber
  6.  Polyethylene film
  7. Towel

Then I put them in a big plastic bag, Use a vacuum to exhaust the air out of the bag.

One day later

step5: After cutting with ultrasonic knife, assembled it with the MDF parts cut with laser cutting machine

At first I want to make something like Wolverine's claws, but each part after the completion a heavier than expected. The joint parts can not afford it, So the Wolverine's claws is reduced from 3 to 1.

download data

 

 

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