I built a working WA State Ferry decoration for my yard.
I like to work on projects that are a little outside of things I usually work on. I have no idea how to achieve it, and spend most of the year working on it in my spare time.
Some of my past projects:
- My refrigerator looks like a TARDIS
- A LEGO Solar System
- An indoor 2-level rabbit hutch
- A downspout waterfall
- A working toy ski lift yard decoration
For this post I want to expand on how I made some challenges, and how I overcame them.
You can see an overview of the entire process here: https://imgur.com/gallery/6KvSis8
Movement and Control
My original idea for the ferry was to use an aluminum rail with a wheeled sled. I found one while I was working on a different project. I had aspirations of building something similar to a 3d printer to control it. As I was working through how to achieve this, it became clear it would be too complicated and hard to maintain.
I had researched garage door openers in the past for my ski lift. I ruled it out since it wasn’t designed to run all the time – I was afraid it would overheat. I revisited the solution again for the ferry. I researched various models and features, and kept an on craigslist until one showed up.
At first I thought I would have the ferry run on a schedule. Every 15 minutes it would automatically switch sides. It didn’t take long to come to the conclusion that it was better to have the user press a button.
Garage door openers already have an option for a button. One downside is that the button can be used at any time to stop progress of the opener. I did not want the button press to be so responsive. Once the process started I wanted it to finish. This is where I decided to use an Arduino to control the button. I have a separate blog post showing how I achieved this: https://www.jjerome.com/2019/07/03/using-arduino-to-ignore-button-presses/
The button behavior was fairly straight forward, but it would take some experimentation. I learned long ago that a good test environment gives you the highest chance of success. I had to be diligent about making my project easy to pickup after leaving it alone for a month . This meant well organized code, version control, and pictures of my breadboard setup.
I organized actions into functions:
- instead of writing
digitalWrite(LED_BUILTIN, HIGH)to turn off an LED
- I had a functions called
Staying organized made it a lot easier to crawl back into my code when needed.
What things should look like
I knew I had to make:
- a ferry that looked like a ferry
- a cover for the motor to keep it dry, and it should look like part of the scenery
- something else on the other side, that also fit the scenery
There are lots of examples of ferry online. I looked at a few pictures of real WA State Ferries, and a few drawings as well. I’ve found that people like decorations that look more like a cartoon than the real thing. I also wanted the ferry to look homemade. I settled on something with more rounded port holes, and the same color scheme as real thing. I also wanted some room for some cars.
I thought it would be neat to have all our cars represented on the ferry. Finding a model for a classic VW Beetle was not that hard. Finding a Eurovan and a Chrysler minivan were a bit harder. I found some cheap diecast models on ebay. They looked close enough, I painted them to look like our vehicles.
There seems to be a large diecast model community. There was plenty of advice on how to paint the models. I follow most of the advice, but I cut a few corners here and there. I didn’t strip the old paint, and I had to paint with a brush. For some reason every model was advertised as 1:32 scale. But when you compared them next to each other the scale is not accurate. I did my best with the time allotted.
For the side of the Garage Door opener with a motor, I made something that looked like a terminal. The only problem was that the real terminals do not look like much. You would be hard pressed to see one if you were not paying attention. I settled on a bland white building, with a large version of one of the logos on the side. I borrowed this idea from some of the airlines that paint a huge logo on their hangars at airports. I wanted to have windows that could light up, but I decided that could be a feature for another time.
While researching terminals, I saw a lot of pictures of docks. The main thing about the docks is that they had a large structure that went high in the air. I decided to build a similar looking structure as a dock for the other side. I got a little fancy and came up with a pattern that made it look pretty good.
Storage is a big deal. We knew from past experience that you must account for storage. Any time I have made an exception it has a certain cost in the future. From the outset I had a plan for how I was going to store everything:
- The ferry is held together by bolts, and comes completely apart
- The ferry dock is also held together by bolts
- The terminal serves as a box that holds all the other parts
- I’m going to store the garage door opener, in the garage! Since the track is attached to the motor, I can hang it up high as one piece
I built the platforms as I needed them. I originally thought I’d use a ladder for one side, but it didn’t work well when I had everything together. Both these platforms come completely apart. I learned a lot from watching a youtube video for building modular stages: https://youtu.be/ff8LiHGpFKQ
One of the things I like about this project is that I got it to the point where I have a lot of flexibility. At this point the project is using the same techniques used by model train builders for their scenery. I have a few ideas:
- I want to light up the terminal at night. I plan to cut out the windows (the black rectangles), and install some translucent material with lights behind them
- Some friends got me models of their cars for the ferry. One of them had LED headlights. I rewired them so that they work on external power instead of batteries. I’d like to put this car on the dock and power it so that its lights shine at night
- I want to install some lights on the dock
- Someone suggested I add a small horn when the ferry starts, but I’m thinking that will start to annoy the neighbors after a while 🙂
This was a fun project! I felt like I got to apply some lessons learned from past projects and it went fairly smoothly. This ferry incorporates more features than the other projects. The interactive part really makes it a crowd-pleaser.