The Mad Lab

Monthly Halloween Prop Building Contest

Forums

Post Reply
Forum Home > Tutorials > March Entry - LEGO FCG

Apetoes
Member
Posts: 15

For the March Mab Lab I decided to build a LEGO FCG, it is using the LEGO Mindstorm robotics kit.  This was my first attempt at an FCG and I was pretty un-sure of the mechanics.  After building it in LEGOs I am more confident in building a full size version.

 

The original FCG was developed by Doug Ferguson of http://www.phantasmechanics.com/

 

Here is a you tube video of the lego FCG in action.

http://www.youtube.com/watch?v=0bXRhDM4S5M

 

The technology used for the project include the lego motor, motor wires, and programable lego control box.

 

It’s hard to give a tutorial for legos without reverting back to the classic diagrams that always come with the sets.  So I will highlight the main components in hopes that it helps clear things up.

 

First have a worm gear come off of the main motor.  This will give you good torque and a slow steady speed.  Connect a 32 tooth (medium) gear to the worm gear.  I had to use a second 32 tooth gear to translate horizontal to vertical rotation. 

Using a lego axel, hook up a long rotating arm.  At the end place a standard fly wheel that you can tie the strings to, if you use the right pieces the fly wheel will rotate at the end of the arm and the strings won’t get all tangled up. 

 

 

After that all that is really left to do is to build a frame/stand and to run the strings through hooks at the top of the stand.  I am also working on a lego AxeWorthy ghost but need to scrounge for more materials.  I can bear to tear apart the LEGO FCG and am running low on parts.

 

 

 

The Apetoes

http://apetoes.wordpress.com/

 

March 21, 2010 at 9:57 PM Flag Quote & Reply

You must login to post.

 

Recent Videos

238 views - 1 comment
281 views - 1 comment
288 views - 0 comments
241 views - 0 comments

Twitter Updates

    follow me on Twitter

    Upcoming Events

    No upcoming events