pic: 3D Printed Parts Contest

[ColmP]

Hi Everyone,

Here is the submission from Team 1965, the Firebirds from St. Joseph Prep. HS in Brighton MA.

Over the last few years we have been doing a lot of experimenting with 3D printing. We use PTC Creo and a combination of MakerBot Replicators and older Replicator 2s to build our parts. During this period we have developed enough confidence with this process that we developed a full suspension and tank drive system for the game this year. I have included a few pictures below and after the dust settles I will post the CAD files for all of the parts and assemblies.

The track design was an improved version of what I had posted before. The suspension system was design by a few of our students based on some recommendations from mentors to look at how the 1920's Christie suspension and WW2 sherman tank suspensions worked. It was modified between Northeastern District events to include the extra wheel set on the front bogie to prevent the track from collapsing when going over the rock-wall.

I will get more information posted when I have a moment but feel free to post comments and questions.

Special thanks to the Ligebots in Newton MA that saw our robot at BU and encouraged us to submit this. Pictures are below.

Colm.