This parametric OpenSCAD file will help you make a simple and easy-to-build printer case. The build output includes a full cut list and includes an estimate of the enclosed volume so you can choose an appropriate ventilation system, if desired.

The default units are in inches, but you can use whatever you want because this won't actually get printed.

As an example, the cut list output looks something like this:
ECHO: "Cut grooves in frame structure to 0.1875 deep."
ECHO: "Cut windows a hair small so fit is not too snug."
ECHO: "Frame components are organized Left, Right, Bottom, Top."
ECHO: "Enclosure is about 2.20269 cubic feet."
ECHO: "Table", [16, 19, 0.75]
ECHO: "Front Frame", [15.75, 0.75, 0.75], "", "Back"
ECHO: "Front Frame", [15.75, 0.75, 0.75], "", "Back"
ECHO: "Front Frame", [14.5, 0.75, 0.75], "", ""
...(etc.)...

Here is my slingshot gun project. It's about 95% done. I still have to design a trigger mechanism to actually fire the thing. Also, I still have not thought up a good method for holding the projectile.

The triforce from Nintendo's the Legend of Zelda

DIY bookscanner with printable parts

Scalable universal stand for anything on a reel. I use this to dispense PLA to my 3d printer but it could be used for anything on a reel. The reels I am using are recycled electrical cable reels and are 280mm diameter with a 98mm hole, these are very common in these parts and freely available. The whole construction is very much like the mendel prusa frame so is made from 8mm threaded rod, nuts and washers.
All the parts print in around an hour each and it is a good project to tidy up your print area and use up some scraps of filament.
This is the third version of this device.

This is a device used for testing middle school students' structures. It is an improvement on putting a structure across two sawhorses and hanging weights from the structure!

I've used it for "Jinx Wood" bridge structures as well as sheet metal structures.

Check out my TeacherHann YouTube Channel - youtube.com/teacherhann - for videos of my students projects being tested to destruction!

Kudos to my colleague, fellow middle school Design and Technology teacher Gord McGill for allowing me to replicate his idea!

This is a system for adding motion to time lapse films.
Check out the video.
vimeo.com/37495550

slidetracked.com

A marble maze made from wood (1.1" x 0.20" Pine).

This is a fork
You can Eat with it
You can stab things with it
You can launch it with a device made to launch such objects


This thing has changed the world, can you?

This is a fork
You can Eat with it
You can stab things with it
You can launch it with a device made to launch such objects


This thing has changed the world, can you?

A simple 6mm thick Heated Build Platform. This was designed to make my ToM more reliable. As I have been dialing in the Z height more accurately recently I have encountered issues due to slight warping of the HBP's PCB and have had a few occasions where this has resulted in failed prints, removal of Kapton tape from the HBP surface and damage to the HBP itself. As I increasingly leave the printer to do its thing unsupervised and place it in the hands of others I wanted a more reliable surface to ease my mind. Designed in 5 minutes in AutoCAD using the ToM's laser cut acrylic build surface CAD files from here thingiverse.com/thing:4973 and featuring countersunk holes on both sides for 6x M3 machine screws and filleted edges all around. I hope to use this as the base of a new ABP I am working on in future too.

I was asked to attend the Royl Cornwall Show in the UK with my work this week, and I am going to be demonstrating Robotic Football using our teaching robots.

Thing is, all the goals were being used, so I wanted something visually good looking to represent the goal.

What better way to do this than to make a set of goals!

A roller base for a composting barrel. 3/8 plywood some 2x4s and a cheap barrel and you have a composter!

For my wedding in October 2011 I asked my fiance if I could build something, she only asked that it not be tacky. This is what I came up with. It's a modular folding photo booth. I designed the model in Sketchup, programmed it in Autoit, and gave it a nice Glados voice. I needed an input device and I decided to make a serial comm button. I took a 555 timer and made it generate a 4.8kHz square wave. At 9600 baud this translates to UUUUUUUU plus one garbage character when the button is released. for now it only uses a Webcam to take photos but hopefully I will be find a deal on a canon power shot sometime in the next months to upgrade it. Since the printouts are resized, the small webcam resolution isn't noticable, however it won't be suitable if i wanted to incorporate the singles frames into a album. I'm working on some upgrades using the twitter api so I can have the booth update me whenever it is taking photos. This way I can tell it's status and share photos easier.


Here is a video of it's assembly and the software.

youtube.com/watch?v=jNGg821bC7c

My Second design of a small geometric sculpture that explores the battle between cake and pie

My Second design of a small geometric sculpture that explores the battle between cake and pie