I haven’t had much time to make significant changes to the turtle since the last post, but I do now have pictures of what was covered in the last post. Enjoy!
As I first wrote about in my modification wishlist a week or two ago and then started to plan out last week here, changes to the existing turtle model have begun. I don’t have pictures of the work just yet (unfortunate oversight in preparation for this post), but I do have sketches of some of what has been …
Last week I wrote out my wishlist of modifications to my original turtle model. Today I have some sketches to better show what exactly I hope to do. The sketches below feature the A-frame modifications, the track width changes, and the support structure alterations. There’s also a little bit on the addition of a new …
I have not done a great job of keeping up with writing for this blog. Between wave after wave of projects for my five other classes and trying to keep up with the actual work side of this class, I have consistently pushed blogging into one of the lowest priority slots on my to do …
Now that I have a fair grip on what I can do (controller-wise and construction-wise), I figured it was about time to list out the changes I’d ideally like to make to my little cardboard tumblebug model. Structural I hate how wide the track is. The current width was originally decided on out of simplicity—it is wide …
- I hate how wide the track is. The current width was originally decided on out of simplicity—it is wide enough to accommodate the entire possible range of the radius variations that result from the height change. I’d like to trim it approximately in half all the way around the course.
- I like the idea of significantly cutting down on the solid cardboard wall that currently supports the track. Either I could cut out sections to simulate a more traditional support structure or I could replace the cardboard support entirely with wooden dowels.
- The arms that connect the ride vehicles to the drive shaft currently feel like massive overkill. Cutting down the support structure there would be nice as well.
- If time allows, paint and a lot more decoration would make a massive, massive difference.
Mechanical & Electrical
- The main aim of revisiting the Turtle is, of course, to motorize it. I will need to cut out the center of the bottom platform and build a structure to hold the motor in place.
- A platform will need to be added under the existing “ground-level” to accommodate two hummingbird boards and the wiring.
- Each hummingbird board can control six LEDs (2 three-color and 4 single-color). That gives me 12 LEDs to work with in total. I believe the 8 single color LEDs will be used around the ride itself and the 4 three-color LEDs will be used on a sign of some kind.