MIT FabAcademy Week5 Assignment - 3D Scanning and Printing

• test the design rules for your printer(s) (group project)
• design and 3D print an object (small, few cm) that could not be made subtractively
• 3D scan an object (and optionally print it) (extra credit: make your own scanner)

Test the design rules for printer

The 3D Printer I used at SZOIL is the one developed and made by Maker Collider team (a maker platform invested by Intel). Here is the brief introduction to the machine blow:

Zego 3D Printer is an improved one based on Delta parallel connection arms type printer. Its basic info are as follows:

• Type: parallel connection arms Delta Bot
• Nozzle diameter: 0.4
• Material diameter: 1.75
• Print size: diameter 160mm height: 180mm
• Maximum print speed: 100mm/s
• Minimum height of Z axis: 0.1mm
• Extrusion type: Remote extrusion
• Nozzle type: E3D metal nozzle, maximum tolerant temperature 270 centigrade
• Hot bed: silica gel hot bed, maximum temperature 90 centigrade
• Print material: PLA ABS
• Firmware version: marlin-makerlab for delta
• Processor type: Intel Edison ＋ Arduino Mega
• Print method: USB storage print, Web print
• Leveling type: single-point offset test+ One-time manual leveling

We used CURA to do the slicing of 3D model. We can use it to input .stl file and transform it into .gcode file format.

Here are the setting below:

Design and 3D print an object

I used Antimony to design one of my favorit cartoon: Elizabeth

Just a simple version:

Here's my design file (I use Antimony this week)

Here's stl file (I use Antimony this week)

You can also download them from box.net.

In our lab, we use gcode format for 3D printers. So I converted from .stl to .gcode in cura.

First, I tried this one which DIYed by the lab:

A half hour test:

Then I tried this one:

It took one hour to finish:

3D scan an object

In our lab we use this 3D scan machine:

First, you should download and install the software.

Tips for scanning:

It's easy to lost tracking:

Finally, I got my body scan through my classmate's help:

And the 3D scan file is here for download.

All FabAcademy Notes (to be continue):

• FabAcademy Week1 Note - Introduction
• FabAcademy Week1 Assignment - Build a website and use Git
• FabAcademy Week2 Note - CAD
• FabAcademy Week2 Assignment - 3D Modeling
• FabAcademy Week3 Note - Computer-Controlled Cutting
• FabAcademy Week3 Assignment - Computer-Controlled Cutting
• FabAcademy Week4 Note - Electronics Production

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