When you start building out an iPhone setup with extra parts, the small fitment details matter fast. In this case, the problem was simple: the build needed more thickness before everything lined up and mounted the way I wanted.
I was working with a MagBack case, a small 3M metal mounting plate, and a USB-C connection setup. The magnets were strong enough. The challenge was getting the spacing right.
Quick Answer
The MagBack case handled the mounting side well because the whole case acts like a strong magnet. The metal plate stuck to the back without a problem.
The part that needed adjustment was the thickness of the build. I ended up adding multiple layers of double-sided tape, likely Gorilla Tape, behind the metal plate to get the spacing close enough for the setup to work.
What I Was Mounting
This was part of a thicker iPhone accessory build, where I needed a secure way to attach something to the back of the phone setup.
I used a small 3M metal mounting plate on the lower back area. That plate gave the magnetic case something solid to grab onto, and with the MagBack case it held without much drama.
Why the MagBack Case Helped
The MagBack case stood out because the case itself is basically one large magnetic surface. Out of the cases I have tested, it has been one of the stronger options when it comes to magnets.
That mattered here because I did not want the mount to feel loose or unreliable. Once the metal plate was in place, it stuck to the back of the case cleanly.
The Fitment Problem
The magnets were not the issue. The spacing was.
With the parts I was using, the build needed to be thicker. Without adding thickness behind the plate, the pieces did not sit quite the way I needed them to.
To fix that, I added multiple layers of double-sided tape behind the metal plate. I believe it was Gorilla Tape, and I used three layers to get close to the right thickness.
How the Connection Works
The basic idea was to use the small U-shaped piece at the bottom, click it into place, and then use the male USB-C connector between the mounted piece and the phone setup.
That gives the accessory a physical connection point while the magnetic case and metal plate help hold the rest of the build in position.
What Was Not Ideal
This worked, but it was not perfect. Having to stack three layers of tape is not the cleanest solution.
It got the thickness closer to where I needed it, but I would not call that the ideal finished version. It is more of a practical adjustment when the parts almost fit, but not quite.
Key Takeaways
- The MagBack case worked well here because its magnets are strong enough to hold a metal mounting plate securely.
- The main issue was thickness, not magnetic strength.
- A small 3M metal mounting plate on the lower back helped create a usable mounting point.
- Three layers of double-sided tape were used to build up the spacing behind the plate.
- The setup worked, but stacking tape is a workaround rather than an ideal long-term fitment solution.
Watch the Video
The video above above to see the actual mounting setup, how the metal plate sits on the MagBack case, and why the extra tape layers were needed.
