Where Can I Find a 7-Position Rotating Cylinder Switch for My Prototype Device?

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Discussion Overview

The discussion revolves around finding a specific type of component for a prototype device, particularly a rotating cylinder switch with at least 7 positions. Participants explore terminology, potential sources, and related components, including rotary switches and stalk switches, while considering practical solutions for the prototype.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Mal is seeking a rotating cylinder switch with at least 7 positions for a prototype device, expressing uncertainty about the correct terminology to use for searching.
  • One participant suggests that the component is still referred to as a rotary switch, specifically of a patented variety, and provides a patent link for reference.
  • Another participant mentions "rotary switch dual concentric shafts" as relevant terminology and suggests that the component could be small enough to fit in a handle.
  • There is a suggestion to search for "stalk switch," although Mal clarifies that this refers to the entire arm rather than just the ring.
  • Mal considers the possibility of creating a custom solution or repurposing a stalk switch from a junkyard.
  • One participant notes that in some cases, the actual switch may not be in the stalk but rather in the steering column, indicating a distinction in the design of different vehicles.
  • Another participant explains that a stalk switch can control switches located in the steering column and suggests that purchasing a second-hand stalk may be more practical than disassembly.
  • A suggestion is made to explore "slip rings" as an alternative component.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the terminology or the best approach to obtain the desired component. Multiple competing views on the definitions and applications of stalk switches and rotary switches remain present.

Contextual Notes

There are limitations in the discussion regarding the specific applications of the components mentioned and the potential for misunderstanding the mechanical relationships between different parts of the steering column and stalk switches.

Who May Find This Useful

This discussion may be useful for individuals working on prototype devices, particularly those interested in custom switch solutions or automotive components.

Mal Reynolds
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I'm working on a prototype device, and I'm currently figuring out the form factor. On the turn indicator of my car, there is a ring with several positions that will control the lights. I'm thinking that something similar would work well on the handle of my device, and I'm looking to purchase this component to test it out. The problem is I don't know what to call it so I can find one. A rotary switch is a different thing entirely.

Can anybody help? I'm looking for a rotating cylinder switch with at least 7 positions. What would this be called, and where could I get one?

Thanks!
-Mal.
 
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They are still called rotary switches; but of the patented variety.

An automobile steering column switch is provided with a turn signal switch with a selector lever (1) into which a rotary light switch (23) for parking and driving lights is integrated.

http://www.google.com/patents/US6150620
 
The buzzwords are "rotary switch dual concentric shafts". You can get pairs of knobs to match the dimensions of the two shafts. If you only want to use the ring as a switch, you could probably lock the top section, e.g. with potting compound or araldite.

You should be able to get them small enough (e.g. 0.5 in diameter) to fit in the end of a handle.

Try searching Google images.
 
Google images ' stalk switch '
 
Thank you all for your replies. It looks like a stalk switch is the whole arm rather than just the ring, and unless I'm reading it wrong, the patent looks like it is for a specific application rather than the device itself.

I may have to make my own because as AlephZero says, I am really only interested in the outer ring. Or perhaps I'll hunt down a stalk switch in a junk yard, take it apart and paint over the existing markings. ...Now that I type that out, it doesn't sound like such a bad idea.
 
Not sure about some of the others but in the past with GM the actual switch is not in the stalk. It is in the steering column. The stalk just manipulates the switches.
 
Mal Reynolds said:
It looks like a stalk switch is the whole arm rather than just the ring, …
The “whole arm” is the “stalk” that sticks out from the steering column trunk. The stalk either contains the switches or has a mechanical linkage to the switches on the steering column. A “stalk switch” is any switch on, or controlled through the stalk.

If you want only a switch, the second hand parts market sells the entire stalk with the switches because disassembly is unnecessary and not always sensible.
 

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