MX Ergo 40° Stand with Ejector Button

This is a remix of Kevin's excellent 40° stand for the MX Ergo. I made this a long time ago and shared it on Thingiverse, and I'm now moving my work to Printables. 

I had been thinking about how to add a button to eject the MX Ergo's trackball for cleaning, and this model provided the perfect base to do just that.

I swapped in 8x3mm magnets (because I already had some) and removed the underside slots for the ball pusher. I also made a version that doesn't have sockets on the bottom, in case you just want to use rubber feet.

My 8x3 magnets actually measure 7.9x2.7mm, and the sockets are very tight. You might need to scrape them out a bit with a hobby knife, but I figure that's better than having to glue them in. You'll need four magnets to hold the trackball, and another six to attach the metal plate to the bottom.

Before you install the magnets, check that they're oriented to match the polarity of your MX Ergo's base! Once you get them in, they're very difficult to get out. I learned this the hard way when I bought a second MX Ergo and discovered that its magnets are installed differently from my original one.