'best practice' 3pdt order switch grounding?

[!obey]

definitely not an expert here and i'm planning to do wire up a dual pedal with order switch.
anybody's 2cents about whether there is an ideal grounding setup for dual/switched pedals to prevent a ground loop?
thought i'd ask before embarking on a lot of trial-and-error

it's not clear from the switch diagram, but it seems like this (attached) would work with the minimum length of wire..
magenta = bridge between in/out grounds on each board, to I/O jacks
green (chartreuse?) = bridge between I/O jacks

will this work? is the green wire necessary (or worse, does it INTRODUCE a loop...)? thanks, y'all

 

[Ariel Muñoz]

Eso no es necesario amigo si conectas un Jack con la entrada metálica ... ya que al instalar la golilla este hace contacto con la caja de aluminio y la masa la hace la caja ... basta que conectes el otro Jack y haces continuidad a masa .... para evitar tanto cable ... pero no te funciona con los Jack que tienen la entrada de plástico ... Ahí si que tendrías que cablear independiente .... saludos

 

[ryan z]

Bumping this because I am in the same boat. Help! I still didn't understand Ariel's response after translation.

Thanks!

 

[!obey]

i think Ariel's response was that the green wire isn't needed as long as the enclosure&jacks are metal (since the grounds of the jacks are connected via the chassis). i haven't wired one of these up yet to test anything though...swamped at work.

also: https://forum.pedalpcb.com/threads/combining-two-effects-in-one-enclosure.282/ is helpful in that there's (apparently) no need to include a jumper between the two ground pads of each board. the bottom pic on that page worked for someone that just connects the nearest pcb ground to the nearest jack ground.