75x60 VESA for VIVO Pole Mount

This is a SUPER niche model (but hey, isn't that what 3D printing is all about?) for a small touchscreen monitor I bought. Here's the story:

I bought a wisecoco 12.3inch touchscreen monitor to mount under my main ultrawide. The solution I went with was a VIVO Pole Mount because according to the Amazon listing for the monitor, it was 75x75. Turns out, it's not. It's 75x60 (75mm horizontally, 60mm vertically). The pole mount's plate technically still works because I can get 2 screws in the top holes, and just not secure the bottom holes. The monitor is light, so no worries there. But that leaves a bit of the metal plate sticking out from the bottom. Ultimately not a big idea, but I thought maybe someone had something already made to solve this. 

After searching I couldn't find much, but I did find CWColdwell's great VESA 100 adapter model and figured it would be a good starting point. The big help in their model was that attachment point the mount. I cut that out, and then I just drafted up my plate to sit it on with the right spacing between the holes. Come to find out, that for some reason VIVO's mounts where you attach the plate to the mount don't seem to be standard size. The first test print would not fit on the pole mount, but it did fit on another VIVO mount I have for a dual monitor set up. So I needed to resize the connection point to ensure it fit the pole mount, both in the width between the sides and the cavity in which the top tab fits for the screw. 

So your mileage may vary here, especially if the mounts are different sizes because of quality control and not an actual design decision. This however, works great for my monitor and mount and eliminates the extra piece sticking out. Again, this specific monitor is so light (less than 2 pounds) that I am in no way worried that this print will fail to hold it.