Pixie nespresso large drip tray with LED indicator

This is a large drip tray for the Krups Pixie Nespresso coffee machine with a 'full' LED indicator.

Since i use cheaper 3rd brand coffee cups, these seem to be more prone to leaking, resulting to
have to empty the drip tray frequently, and having it overflow occasionally.
I decided to make a bigger version with a LED indicator which lights up when the tray is full.

Electronic parts i used:

• Float switch - search ebay for "Water Level Sensor Right Angle Float Switch"
• Two 1.5V buttons cells type AG13 / LR44
• A 3mm red LED
• A resistor to dim the LED a bit, i used 270 ohms (optional)

The tray contains a round recessed space on the back to fit a metal washer
to connect with the magnet which is mounted in the machine
(optional, works fine without it..)

When designing, i made a standard replacement version of the tray first.
You can this version as thing 1577383 on Thingiverse

I printed this in ABS, make sure to have a decent amount of wall layers (minimal 3)