These are the items used, no doubt they could be sourced elsewhere, given the fluctuations in prices and the difficulty in sourcing from the Far East, opted for UK Sellers.
Not included is the cost of the PLA filament, some small nuts and bolts and bits of wire!
As a price comparison...Hmmm.... guess that's down to each individual.....
It does what it does, switches whatever alternative circuit ON or OFF.
Micro Switch £4.60 for 5 works out at £0.92 each.
Part number is SS-5GL (or XSS-5GL as they are XURUI switches -heavy duty ). New 5A microswitch (SPDT) with lever attached. This is a high quality switch which works very precisely. CCC, CE, TUV approvals.
www.ebay.co.uk
MG90S Servo £2.99 each, discount available for multiples.
MG90 Micro Servo. Perfect for Raspberry Pi and Arduino. Ideal for Raspberry Pi and Arduino projects. 3 Pin Dupont Cable. 3 Pin Cable : Brown - Ground, Red - VCC, Orange - Pulse Input.
www.ebay.co.uk
The price difference between a standard nylon/plastic geared Servo to a Metal Geared Servo is minimal, down to end user choice.