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Anyone know where I might find a (6mm D profile) potentiometer knob with an extended socket? 1

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salukikev

Mechanical
May 14, 2008
110
I'm making a short run production of an assembly for which I have received 24 wall mount spring timer switches. Each has a knob you twist (you know the type: "turn past 10...") but in my application, we're attaching the switch 3/8" away from the knob. As such, it's really hard to get a good engagement. Has anyone come across a resource that can supply knobs with an extended "socket"? (more like a stove burner knob) I've already tried the usual mouser, mcmaster, digikey, etc. with no luck. Hoping for a less known "knobs-r-us.com" kinda resource. Thanks!
**I thought hard about where to post this one and ended up here. Mods please feel free to move.
 
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For those types of knobs, it's usually the shaft that's made longer for the application... perhaps you can change the actual switch to one with a longer shaft? If not, I'm sure the machine ship could whip up a batch of small extensions with a setscrew at one end.

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Hmm... yeah, funny I hadn't considered that option. I could actually do that here I guess. I guess I just don't the factory knobs very much, haha. Also, still on the lookout for quick & easy. To that end, I might just counterbore a big 1-1/2" diameter with a forstner bit. Finding a good knob I could order would skip all that hassle though.
 
ScottyUK:
Yes, I did see that one, it looks like that guy is maybe casting them from urethane? My concern there is two things, and they're kind of the same: 1. Usually they have a little metal insert to help manage torque- none seen in that example. 2. As this is a spring timer, it will need a bit of torque/grip to get things going, and a radial design like that struggles a bit in that regard- I assume thats why the spring timer knobs usually have a blade kind of design. Thanks for the suggestion though!
 
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