Magnetic roof attachment!
I’m borrowing this one from a few other builds. Really liked the idea of a removable top for adding a electronics to the engine bay (smoker and sound system in my case) and keeping easy access to the crew compartment.
The first step is getting some magnets. I spent a while looking at options and settled on 6 mm OD x 3 mm thick nickel coated ferrites.
https://www.amazon.com/GBYMIUY-Refrigerator-Magnets-Cylinder-Whiteboard/dp/B07873ZCY4
These are plenty strong and hold the roof well. Some of the builds I looked at used stronger rare earth magnets, but I’d actually be worried about prying the lid off if the magnets were any stronger.
The next step is getting some Styrene building materials. I used Plastruct 0.25” square rod to match the footprint for the magnets
You can tell I forgot to take pictures in the beginning - hence the short rod. It was nice out so I decided to work in the backyard.
Also picked up a Kerf saw and Miter box. It works great for small pieces. I’m hoping to use it for the wood truck bed also. We’ll see how long it stays sharp - but then, it didn’t cost much either. The seller I used is sold out now, but it’s easy to find elsewhere. The description is: Olson Saw 35-241 Fine Kerf Saw 35-550 42 tpi with Aluminum Thin Slot Miter Box. The file in the picture was separate.
A few minutes of sawing and sanding later and I had a handful of magnet mounts
For installing the magnets, it’s easy to get tripped up aligning the magnets (since one is attached to the lid and the other is attached to the body) and inadvertently getting the polarity backwards so the magnets repel rather than attract each other. I also wanted the magnets to sit flush against each other when the lid was installed.
To get around all that, I first used CN glue to bond the magnet to the mount, then added the mating magnet so I could see how to make the top of the mount + magnet stack flush with the roof, then (plastic weld) bonded the mount to the body, and finally, used CN to bond the top magnet to the roof. For the last step, I put a thin spacer between the magnets, applied CN to the top magnet, and then attached to roof and pressed it all together. Overall, this approach made it easy to line everything up, keep the polarity straight, and get everything bonded together. Here’s how it looks in the end. I’m happy with how it turned out
I also took the plunge and assembled the spare. It was less work than I remember for the others, but then it’s only 1 vs 6, lol! The beadlock has more of a matte finish than the wheels that came with the kit. I like it - may try to achieve something similar with the others.
Onward! I may even start painting soon ...
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