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I have seen those, but I have until now dismissed them as something weird that I don't understand the purpose of.

According to the C&K switches datasheet: www.ckswitches.com/media/1349/arotary.pdf, the increase in the number of poles corresponds to a decrease in the number of positions by a factor of the number of poles, with no further explanation. The schematic just looks like three or four separate switches with three or four positions each, and I don't know the use case for that. I was hoping to get a better explanation here, and it looks like we might be on to something.

Is it possible that this is the exact same thing as hexadecimal coded, just without using those words? And that I don't even need diodes?

That is what I do mostly Rob but there are many users that are not capable of doing their own compile.
When I setup a machine for a customer or user, I use the buildbots to make it easy for them to stay current. MX Linux provides an easy way to update. This suits most users and therefore the buildbots are really necessary.

I am looking at setting up a private repository where I can place the compiled DEBS on a weekly basis. I will point their Synaptic Manager to the private repository to do automatic updates. I am just having a hard time to get the files signed in the correct manner for apt to recognize them as a proper repository.

Not quite as convenient but if this pull request was committed, making Debs is very trivial as it uses the Debian build environment to get the dependencies so it becomes a 3-4 line process.
github.com/LinuxCNC/linuxcnc/pull/2647
eg as I tested: in the comments.[/code] 

fully_defined wrote:

rodw wrote:

Not quite what I was looking for but something like this. SOme have stops that let you limit the number of positions
au.element14.com/lorlin/bcks1004/rotary-...MA-RECO-PDP-STM72189
 
In the US, this is all Digikey has that's coded for hexadecimal. My own personal lack of vocabulary for searching is also something I hope to improve as part of this conversation.

www.digikey.com/en/products/filter/rotar...AMqcAnAJYA7AOYgAvtKA

Me too! so I am hesitant to make a recommendation for that reason but I think that a 3 pole or 4 pole 12 position rotary switch also does what we want. eg decodes a position to a bit map on the poles.