Instead of doing separate build threads for each project/car I do, I figured I'll just make a single thread for all of it.
To start off the thread, last night I did some work on my NB Miata, which is my daily driver. I've been planning this since I got it, and acquired materials like a month or two ago, but a finally getting to it. Custom door cards.
If you've been in both an NA miata and an NB, you'll likely notice that the NB is a bit tighter due to the stock door cards. On an NA, there is a padded section at the top, then basically a heavy duty piece of cardboard covered in vinyl for the bottom. The NB on the other hand, has a molded plastic door card that stick into the cabin quite a bit more.
I had done some research online, and found that you can use the factory NA tops on NBs and make your own bottom sections, so that's what I decided to do. I already had a set of ok NA door cards in the attic, so I harvested the tops from them. For the bottom section, I decided to use a material called e-panel. It is a composite panel with a thin layer of aluminum on each side, and a section of ABS or plastic of some sort in the middle. I thought about using a sheet of just aluminum or ABS, but this seemed like a better option. It's about 1/8" thick, and pretty solid. I got a 4'x8' sheet from a local sign shop for about $80. For this I am using 4'x4' of it, and am going to make another set for someone else with the rest. I think if you were precise you might be able to get 3 sets of door cards out of a 4'x8' sheet, but I needed space so I cut it down to 2 4'x4' sheets till I could start the project.
Making the panels was pretty easy, but took some patience. I made a cardboard template from tracing the stock door card and then holding it up to the door to compare. They aren't a perfect shape, but as much as I thought they'd be off, it doesn't show badly. When cutting the panels out, I cut my 4'x4' panel into 2 2'x4' panels, then clamped them together and cut both out at the same time. I used dad's DeWalt 20v jig saw to do the cutting, which worked great! (Thanks dad!)
Mounting the panel on the door I did with 6m Rivnuts using stock mounting holes in the door. I did have to use a step bit to make them one size larger. For the bolts, I used some of these "Billet Aluminum Fender Bumper Washer Bolt".
Most of the other custom panels I've seen done online try to mate the top padded section with the bottom section, but I figured it would be easier to keep them as two sections. I mounted the bottom section to the door, then slid the top section on. On the front of the top section I used one of the fender washers through the section into a rivnut I mounted into the bottom section. on the back of the top section, I actually just drilled a hole in both pieces and used a zip tie. I would have liked something a bit nicer, but that part of the padded section was too thick for the fender washer bolts I had, and the zip tie is not actually very noticeable anyway.
(Arrows are on the protective layer of film that the panel shipped with.)
Phase one is complete. I still need to add some door pulls, holes for speakers (new sound system going in at this time too), and then finally wrap the panel in vinyl wrap to finish it off.