Your thoughts about knobs

Started by Hemmel, July 31, 2013, 01:50:58 PM

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rousejeremy

Quote from: deadastronaut on July 31, 2013, 02:32:28 PM
robs tip of the day: :icon_mrgreen:

use the retaining lug you snip off, and put it between the shaft gap...voil'a no squeeze... ;)

Yes! I started doing this when one of the split shaft lugs broke off a pedal I built for a friend. Haven't had a problem yet. My only gripe is the set screw likes to "slip" into a groove of knurled shafts, sometimes making the pointers on the knobs look uneven when they are all set to 0 or max.
Consistency is a worthy adversary

www.jeremyrouse.weebly.com

tubegeek

Quote from: rousejeremy on July 31, 2013, 07:26:16 PMMy only gripe is the set screw likes to "slip" into a groove of knurled shafts, sometimes making the pointers on the knobs look uneven when they are all set to 0 or max.

First off, if that's your ONLY gripe, I want to be you!

Second, I've been known to get THIS anal: I'll find the spot on the shaft where the set screw needs to set, and Dremel a little dent so the knob stays where I want it to stay.
"The first four times, we figured it was an isolated incident." - Angry Pete

"(Chassis is not a magic garbage dump.)" - PRR

rousejeremy

Quote from: tubegeek on August 01, 2013, 10:48:45 AM
Quote from: rousejeremy on July 31, 2013, 07:26:16 PMMy only gripe is the set screw likes to "slip" into a groove of knurled shafts, sometimes making the pointers on the knobs look uneven when they are all set to 0 or max.

First off, if that's your ONLY gripe, I want to be you!

Second, I've been known to get THIS anal: I'll find the spot on the shaft where the set screw needs to set, and Dremel a little dent so the knob stays where I want it to stay.

I will now be doing this.
Consistency is a worthy adversary

www.jeremyrouse.weebly.com

tubegeek

Quote from: rousejeremy on August 01, 2013, 12:09:43 PM
I will now be doing this.

I would say, "I've created a MONSTER!" but, clearly, you were monstrous before I ever came along.

In other news, my name's Jeremy too - pleased ta meetcha!

-j

"The first four times, we figured it was an isolated incident." - Angry Pete

"(Chassis is not a magic garbage dump.)" - PRR

Ice-9

What I find if I try and use set screw knobs on split splined shaft pots is that is helps where you align the screw, ie if the screw is at 90 degrees to the split then as you tighten it up it compresses the gap and the know rotates like its been at the whisky, if you align the pot and knob so that the screw is in line with the slot then it has a better chance  turning smoothly.
www.stanleyfx.co.uk

Sanity: doing the same thing over and over again and expecting the same result. Mick Taylor

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davent

I simply can't abide the set screw knob on a splined-shaft pot. As GGBB pointed out, the issue is the difference in diameter between the splined/knurled shaft and the 1/4" knob, have even tried purpose-sold brass bushings to correct the fit but for me the results are the same, wobbly pot that's never perpendicular to the enclosure, totally unacceptable. I'll only use the Tayda pots for breadboarding or if i make something that 'works' best with a knob that requires a splined shaft, cost be damned!

Tayda does have a few values of 9mm pots and they do come with round shafts (metal).

http://www.taydaelectronics.com/catalogsearch/result/?q=Round+Shaft+PCB+9mm
"If you always do what you always did- you always get what you always got." - Unknown
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mistahead

I did discover that when looming above my pedals in mah big black boots my knobs looked scared - suddenly the few degrees they'd been leaning towards (and away) from the face of the pedal itself wasn't observable.

Try it - may get different milage based on boot size and height.