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DIY pot ganging
DIY pot ganging
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Old 1st December 2017, 09:41 AM   #1
scottjoplin is offline scottjoplin  Wales
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Default DIY pot ganging

Has anyone ganged pots for multiamp systems? What methods are there? I'm thinking of using toothed pulleys and belts, for example: 5.08mm Pitch 6mm Bore 13 Tooth Flanged Synchronous Timing Belt Pulley XL13 | eBay
Thoughts/recommendations please........
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Old 1st December 2017, 09:59 AM   #2
levistubby is offline levistubby  United Kingdom
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Hi Scott.
How many channels are you thinking of??


If I needed to do it, I would first look at direct gearing together. Two pots (on opposite side of the drive cog) need to be mounted front to front for the same rotation direction.


I have seen pictures of geared/belt driven pots in the past but can't remember if it was on this forum.


The problem with any arrangement is the amount of space that it takes up.
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Old 1st December 2017, 10:12 AM   #3
johnnyx is offline johnnyx  United Kingdom
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Linear slider pots (faders) as used in mixing desks are relatively easy to gang up with a bar to connect the sliding part together so they all move as one. I am in the process of constructing such a beast myself, with a motor, belt, pulleys, and so on for remote control.
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Old 1st December 2017, 10:43 AM   #4
scottjoplin is offline scottjoplin  Wales
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Hi Levi, only 4 channels so could be done the way you suggest, I hadn't thought of that, thanks. Space isn't too much of an issue, though it seems to me it would require a long extension to fit a control knob, though again, not a problem. I'm interested to know why you think it would be better than pully and belt?
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Old 1st December 2017, 10:45 AM   #5
scottjoplin is offline scottjoplin  Wales
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Hi Johnny. That's an alternative, can you post some pictures of work in progress please?
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Old 1st December 2017, 11:04 AM   #6
chalky is offline chalky
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I had Omeg make me a small quantity of 4 gang pots about 10yrs ago. The price was very reasonable but I have no idea whether they still do this.
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Old 1st December 2017, 11:07 AM   #7
johnnyx is offline johnnyx  United Kingdom
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I have just bought a 3D printer, and the idea is to print the fixing brackets. I need to get my head round 3D modelling software first. I could have used nylon cord like the old radio tuning dials which would have been cheaper, but I got a toothed belt and pulleys. I have one linear track for position feedback along with the Alps logarithmic slimline faders.
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Old 1st December 2017, 11:15 AM   #8
johnnyx is offline johnnyx  United Kingdom
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I dismantled some Alps blue pots with the idea of turning a suitably long shaft to connect all the wipers, but my friend with a lathe is too busy to turn it. This, too, could work, with spacers to hold the wiper holders in position.
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Old 1st December 2017, 11:20 AM   #9
scottjoplin is offline scottjoplin  Wales
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Interesting. I've a motorised blue Alps and a black beauty that I'm planning to couple... I'm hoping the motor would drive them both
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Old 1st December 2017, 11:22 AM   #10
scottjoplin is offline scottjoplin  Wales
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Quote:
Originally Posted by chalky View Post
I had Omeg make me a small quantity of 4 gang pots about 10yrs ago. The price was very reasonable but I have no idea whether they still do this.
That's a thought, I've used their green eco pots, and I think they still will make up specials to order
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