Thursday, December 31, 2020

Welcome to Charlesworth Dynamics

I am a hard surface 3D modeler and printer with a specialty in designing assemblies. For 12 years, I was the Head Repair Technician for NYU Film & TV - responsible for the repair, maintenance and processing of all production equipment.  Recently I relocated to the San Francisco Bay Area where I am the 3D Printing & Fabrication Specialist on  I use my hands-on knowledge and sensibility, to design working 3D printed assemblies combined with actual hardware where appropriate.

This was originally an archive of my 3D modeling and printing thesis (see Octopod below) for a Masters of Science in Digital Imaging and Design at NYU.  It has since grown into much more, documenting my 3D printing as well as 'analog' projects which cover anything from camera repair to building Star Wars blasters.  I felt it was appropriate to combine the two since I constantly bring the digital world of 3D modeling and printing together with real-world hardware and construction.


Adam Savage's Inventern

I won a competition to assist Adam Savage of MythBusters on a project.  I recount the experience for

3D Printing on Tested

I cover 3D printing as well as build projects for

Tested is run by Norman Chan and features Adam Savage of MythBusters.

Cutaway Lightsaber

In conjunction with Formlabs, I designed a custom cutaway lightsaber using the new flexible, black and clear resins. Watch Tested and my Twitter for upcoming coverage and print files for download.

See it in person at the Formlabs booth at Maker Faire Bay Area!

Ghostbusters Ghost Trap

See my fully 3D printed Trap on Tested.

Download & print your own.

Get the hardware to put it all together.

Get assembly guides.

Octopod Underwater Salvage Vehicle

My thesis project which I designed, printed and built.  Make sure to look at past posts which go into great detail about the modeling and printing process.

The Octopod won an Editor's Choice Award at Maker Faire New York 2012 and is featured on the MAKE site and in their "Ultimate Guide to 3D Printing" issue.

It has also been featured on the Objet site and with great pride on Tested, an awesome site which features my hero, Adam Savage from Mythbusters. (Seriously, check out the videos of Adam's workshop).

The Scuttlefish
(aka Gowanus Monster)

I designed and modeled this for an animated film by Bold Machines. It's definitely in the same fleet as the Octopod.
Read about it here.
Download files here.
Buy one here.

3D printed TARDIS kit.  We are offering a regular TARDIS, Half Wolf TARDIS (shown) and a lighting upgrade package (soldering skills required).

They are up on our Etsy Store, so check it out.

See my full write-up of how the TARDIS was created on

Iris Box v3

Update to my original iris door box, derived from the Octopod moon pool door.

Buckaroo Banzai Jet Car

My other on-going project is the Jet Car from one of my favorite films, The Adventures of Buckaroo Banzai Across the 8th Dimension.  It was my first 3D print and I did a full write-up of how it was done for

The Jet Car was on display in Vienna, Austria for Vienna Design Week 2012.

Iron Man Arc Reactor

Ongoing project to 3D print the MK I Reactor.
3D Prints - Misc

The Octopod and Jet Car are my two major creations.  These are my other creations which range from useful to fun.  Most of these were printed on my Thing-o-matic or Replicator 2X at home.

'Analog' Projects

A selection of hands-on projects I have tackled, including a Stormtrooper Blaster.

Monday, December 28, 2020

Adam Savage and the Millenbaugh Motivator

At the end of 2013 I entered Adam Savage's Inventern competition on and, to my surprise, I won. The grand prize was to work on a week-long project with Adam - it turned out to be a bigger project than I could image, lasting 3 months.

Sunday, December 27, 2020

It's a Wrap! - Octopod Overview

Thesis was defended May 3, 2012 and passed with Distinction. Not bad for the guy who had an undergrad GPA which shall remain nameless.  I have collected the key entries here, but check out the rest of the blog for more on the process.

For those new to my project, the goal was to design, model and then 3D print a mechanical octopus vehicle, complete with working features and LED lighting.  The video is an introduction to the piece, followed by lots of pictures and construction details.  Don't hesitate to contact me with questions.

I built a custom stand with a ball-joint to allow for different of poses.

Continue on for more pictures and info...

Wednesday, September 9, 2015

Tested Articles

I am the 3D Printing and Fabrication corespondent for  I try not to skim over topics and get into the nitty-gritty while still making it clear for beginners and once and awhile I will do a non-3D article as well.  For your perusal...

I recount winning Adam's Inventern competition and the grand prize - helping to finish his Hellboy Mecha-Hand.


Friend of Tested, Jacky Wan aka Valcrow, came down from Canada for a visit to share some of his excellent 3D printed creations.

Form 2

I had a sneak peek of the Formlabs new Form 2 SLA printer. Full review and video can be seen here.

Norm and I build my Scuttlefish, AKA Gowanus Monster kit. Download and print your own or get a kit to build. Read about the design here.

Ultimaker 2 Reviewed

A great printer from novice to expert.  Also see our Ultimaker 2 video.

Tuesday, July 14, 2015

Etsy Building Costume

When we lived in NYC, my wife worked at Etsy and they always had an amazing Halloween party.  They have an awards ceremony in which one of the prizes is the most 'Etsy' costume.  They are moving into a new building soon, so we made a New Etsy Building costume - she ended up winning Best in Show.

Wednesday, January 22, 2014

TARDIS Deluxe Kit

Designed right from the BBC blueprints, my TARDIS kit is meant to print flat to avoid the cracking problems I have experienced with other versions.

Read the my full write-up of building the TARDIS on