600x400 VESA Mount Extension

I needed to stick a Raspberry Pi behind a TV with a 600x400mm mount. https://www.thingiverse.com/thing:922740 provides 75x75 and 100x100 mount holes, and https://www.thingiverse.com/thing:2351851 extends it to 200x200, but I needed something bigger.

I split the arm in two so it'd fit on my A8. The split also allows for some minor adjustment for fit. One end includes a spacer to pass an M8 bolt through, as the mount holes on my TV were recessed a bit. If you need a larger or smaller hole o