7/29/2013: As I stated; been working on the cabinet for the Mirror universe project. I bought a couple of "project" Bally Star Treks from a fellow pinball collector out of Shertz a few years ago. These have been setting in storage for a while... and...
In order to stick to my design goal of an AUD$1000 budget I decided to start a bill of materials spreadsheet. This would be a handy tool to keep track of budget and also allow me to show people if they wanted to try making something similar. Below is...
Okay the second version of the Escape Wheel was better than the first, but still was not a complete success. This time it was not possible to adjust the pallets to prevent the escape wheel from free running, or jamming. And of course that means that...
This is based on the design of a strain wave gear, but it not an exact copy of a strain wave gear. Strain wave gears characteristically have an oval wave generator, a flex spline cup, and a circular spline. The wave generator engages 1/3 or more of the...
The current solution... may fail, due to: - turning radius requirements of the 3.2mm ball chain approaches the motorised sprocket diameter. So I've implemented some tweaks and learned a few things. Firstly, unlike what I assumed months...
I just want to get this in so we know it's been tried and seems to be an improvement over the version in the first video: The proof of concept constrained the timing belt along one edge to a circle. When the wave generator moves past a section of the...
I thought this would be worth publishing a log about. While preforming a load test I found that the flexspline will start to rachet if too much reverse torque is applied. I find this interesting, I was under the impression that the first mode of failure...
I just wanted to say that I've tried cutting the HTD 5MM mount ring in my new CNC in 9mm plywood and it seems that when I place it over my first design revision there's a 1-2mm gap/play between the belt and gear. This isn't supposed to reflect at all...
I am in the experimentation stage. I have all the hardware together and just want to see this go.My current plan of record is the implementation of everything on my Dinghy instead of an RC boat. All I need is a very large servo motor (old windscreen...
I'm planning to do some automated endurance testing of Tardygrade later in August. I want to find out if it can whitstand a few hundred hours of movement without breaking down. I'm actually more worried about the drive servo than the 3D printed mechanism,...
Let's have a look at the first test rig for measuring magnetic fields over a 3D volume.I confess that I've been thinking about this for a few weeks, and it's been a fun (and sometimes frustrating) design process. We'd like to accurately map the magnetic...
I've found plenty of well documented cabinet builds online, but from my own experience at arcade machines, most of them are not quite tall enough for me. I often end up bowing down and having the marquee too close to my forehead. So I decided to start...
I've been a bit light on putting together documentation for this project so far, but the work continues and you can follow along with it on YouTube and Twitch. The archive from our latest stream is embedded below, where we hack on the motor control loop...
A few months ago, I tried creating copies of my home keys in SketchUp. With a few iterations and eyeballing it, I eventually got something that slide in and out of the lock with ease: It slid in and out of the lock pretty smooth, so I upgraded,...
Today i split my time between Ruperts body and my animatronic head. First i added the eyes:Next i cut a strip of foal the make the matching top and bottom teeth:the attached the top:And nearly decided to stop there and make him have an overbite. Instead...