Week 3 Laser Cut Mold – SCOPES-DF

Lesson Details

Subjects*
Age Ranges*
Fab Tools*
Standards
Fab-Modeling.1, Fab-Design.1
Author

Author

Chris Ludwig
Chris Ludwig
Fablab manager

Summary

Use a laser cuter to create a mold with acrylic

What You'll Need

Equipment:

Laser Cutter

 

Material:

Acrylic Sheet (3mm clear used here)

 

Software:

Inkscape

Cutting software (Lightburn used here)

 

Basic image of your choice

Lesson Materials

The Instructions

Selecting a file & converting to a vector

Use Inkscape to convert a simple rastor image into a vector

Import an image of your choice

Select Path > Trace Bitmap

Right click image > Fill & Stroke > Stroke Paint > select fill & make sure color is set (in this case I set the stroke color to black

 

 

Select Stroke Style and set width to 1 px

 

Save svg file

Import SVG file and prepare for cut

Prepare vector image for cutting

Import SVG into your cutting program (Lightburn in this case)

 

Select the appropriate speed and strength (100% and 5 mm/s for this machine)

Cut out mold

Load material & perform cut

Load the material into laser cutter

 

Select the appropriate settings for your laser cutting device

 

Select cut

 

Remove finished product

 

 

 

Note: I experimented with cutting an outline as an alternative mold, but that is not a requirement.

Create the biomaterial

Following the recipe, create a (hopefully) jiggly biomaterial

Agar Agar Recipe:

150 ml of water / 16 g of agar agar / 8 ml of glycerin / dash of tumeric for color. 

 

We were aiming for a springy mixture. Adding less agar agar will be fine and will result in a more stiff final product.

 

Instructions: Add the water and agar agar in cold to the pot. Heat the mix to a medium temperature while stiring slowly. 

 

Add the glycerin and tumeric. Allow the mix to simmer and pour into the mould once it has begun to harden.