Button fit in the hole that works as a swtich, to control Led light or other electronics inside.

No need to remove any panel from the printer.

Parts needed:
8mmx8mm self locking switch, three 5mmx2.5mm magnets (optional) OR some double side tape / Blu Tack

1 Print the button house with the pin upward, no support needed

2 Print the button

3 Wire the cricut to you need

4 Fit in the switch untill it snap in

5 (optional) Fit in the magnets on the bottom 3 holes 

6 Install the housing first, fit the pin to the small hole already on the inside metal panel 
   (magnets is helpful here, or just use some tape / Blu Tack to help it stay)

7 Install the button from outside, through the panel hole