Quote Originally Posted by Boyan Silyavski View Post
Great but 5v and not shielded = Problems
That's actually a bit of a generalisation, as it depends on exactly how you're powering things. I keep meaning to do a post on the why and how the problem can be mitigated to a certain extent.

Regardless, IMO limit switches should always be fail safe I.e. NC, as you want to minimise the risk of a wiring fault causing the switch detection to fail.
Plus, magnetic switches on something that could potentially be machining steel?