Re-bulbing K-9’s back buttons

A while ago I picked up these buttons for my Dr Who’s K-9 robot from AliExpress, Hobby Components have similar available online,

The ones I purchased are SPDT with a 24 V DC incandescent bulb in them, regardless of the button colour they are all illuminated with a white incandescent bulb, because I want to use them with an Arduino microcontroller, I am swapping the bulb for LEDs in the same colour as the switch front:

I am now ready to print the Back of K9 and I have found out that Bob is going to get his CNC machine working over Christmas 😀

I have asked a number of times if FizzPOP’s CNC router is working, however despite it having a web page the status has not been updated in over a year!

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