Dial Indicator Holder for ROBO 3D Printer

I decided I wanted my Harbor Freight/Pittsburgh 1" Digital Dial Indicator to face forward for easy readings, so I designed this to include 4 small magnets to hold it to the X carriage shafts. I also wanted it to bolt securely to the rear mount bracket for accurate readings. It uses magnets you can pick up at home Depot for a total of $3.00 for a pack of six (you only need 4). They are .470" x .110" (12mm x 3.00 mm) super magnets.