Finucane Derivative Eggbot

by FinucaneDesignLLC, published

Finucane Derivative Eggbot by FinucaneDesignLLC Mar 25, 2013
1 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps


Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag


Thing Statistics

14432Views 4296Downloads Found in Art Tools


These are my updates to a the printable eggbot.

More information can be found here:


Just like a 3D printer you need a three pieces of software to run this bot.

  1. Arduino Fireware - https://github.com/FinucaneDesignLLC/SphereBot/tree/Arduino1.01
    (Updated to match steps to px)

  2. Inkscape Gcode Exporter - https://github.com/FinucaneDesignLLC/inkscape-unicorn
    (Updated to export gcode in px (set your document to 800px high x 1600px wide))

  3. Feeder.py - https://github.com/FinucaneDesignLLC/SphereBot/blob/Arduino1.01/Utils/feeder.py
    (Updated for Com 4 and baudrate to match arduino firware)

You will need python to run the feeder.py file

I used pololu stepper drivers (like from a mendel). More information can be found here: http://www.pololu.com/catalog/product/1201

You can look in the firmware for the pin outs. Each driver gets three pins: step, direction, and enable. More information can be found here: http://pleasantsoftware.com/developer/3d/spherebot/. Note that I found that for 16x mircostepping the MS pins needed to be pulled high, not low.

Unlike other eggbots I found mine works better at 800 px (high) by 1600 px (wide), using two px in the X for every one px Y. X being the egg motor, and Y is the pen motor.

Which is a little confusing because I am also using one 0.9 stepper motor. So for my setup, One step of the 0.9 motor and one step of the 1.8 motor give the correct size px.

Non Printed Parts:
1 x Stepper 1.8 degree https://www.sparkfun.com/products/9238
1 x Stepper 0.9 degree https://www.sparkfun.com/products/10846
2 x Stepper Drivers - http://www.pololu.com/catalog/product/1201
1 x Breadboard https://www.sparkfun.com/products/137 (I think this should match the bolt holes, I got mine at radioshack)
1 x Arduino Uno https://www.sparkfun.com/products/11021
1 x Hobby servo http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=30703
1 x Power (for steppers) https://www.sparkfun.com/products/9442
1 x Powerjack https://www.sparkfun.com/products/119
wire (something like this) https://www.sparkfun.com/products/124

1 x 36" 5/16 (or 8mm) threaded rod
~25 x 5/16 (or 8mm) nuts
8 x 5/16 (or 8mm) lock washers

8 x 3mm x 10mm cap screws
8 x 3mm x 20mm cap screws
8 x 3mm nuts
4 x 4mm x 20mm cap screws
1 x 4mm x 35mm cap screws
4 x 4mm X 15mm cap screws
9 x 4mm nuts

(you don't really need cap screws but they look cooler than Philips)

2 x Bearings (Search Amazon for VXB 608 ZZ Skateboard Bearings)

Sharpie pens (Search Amazon for Sharpie Ultra-Fine-Point Permanent Markers, 24-Pack Colored Markers (32893))

More from Art Tools

view more

All Apps

3D Print your file with 3D Hubs, the world’s largest online marketplace for 3D printing services.

App Info Launch App

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

3D Print a wide range of designs with Treatstock. Easy to use tools to get the perfect result. The global 3D printing network that connects you with high-quality and fast working print services nea...

App Info Launch App

Great derivative. I've started printing mine today. It should be up and running by Easter! Ha

Nice idea with the servo connection. Why there are two versions of the spring?

One is a little longer and stiffer. I think I will remove the one that is included in the STL file with the pen mount, so you don't have to print both.