[NOTE: This is a draft design in work and has not been fully tested with the new bushing design. The original design can be found here and has been confirmed to work. This new design will get additional info added once a couple early adopters confirm it works.]
This is a mount for the standard Alps RK27 volume potentiometer to be able to mount it remotely away from the front panel, minimizing wire length to the Iron Pre SE board. The height of the design is currently configured for the Iron Pre SE chassis from Modushop to align with the 8mm bore hole on the front plate (40mm center-line off bottom chassis plate). This version should be an improvement from my original design, which required more parts, including a roller blade style bearing and two different tubes. The new version requires just one tube and uses a 3D printed part as a bearing.
It mounts with two M3 bolts from the bottom and they screw directly into the plastic. There are slots if you want to add M3 nuts for added security (however, not needed with a long enough M3 bolt). The Alps Pot fits very snugly into the mount, so don't press it all the way in until you know you won't be taking it out. It can still be removed with some force, however, just avoid pushing it all the way in until you're ready to connect the extension rod. This works just fine with the Pete Millet Alps Pot PCB.
A small 3D printed bushing is also part of the "kit" to allow a 6mm OD tube (or solid rod) to be centered in place and allow rotation of the external knob with no play. A little drop of machine oil will help create a smooth rotation.
Two additional pieces of hardware are needed. A 6mm OD tube, or solid rod (aluminum or steel) [200mm or longer] and a 6mm to 6mm coupler, both which can be found at Bezos's bookstore.
I'm willing to provide a kit at my cost + shipping if you don't have a 3D printer. However, for those folks with a 3D printer, this is a fun way to do a little more DIY vs buying something on Aliexpress. [Search for "Alps RK27 extension" to find those options]
Files attached in Zip file below are 3MF files. If you need STL files (or others), please ask.
This is a mount for the standard Alps RK27 volume potentiometer to be able to mount it remotely away from the front panel, minimizing wire length to the Iron Pre SE board. The height of the design is currently configured for the Iron Pre SE chassis from Modushop to align with the 8mm bore hole on the front plate (40mm center-line off bottom chassis plate). This version should be an improvement from my original design, which required more parts, including a roller blade style bearing and two different tubes. The new version requires just one tube and uses a 3D printed part as a bearing.
It mounts with two M3 bolts from the bottom and they screw directly into the plastic. There are slots if you want to add M3 nuts for added security (however, not needed with a long enough M3 bolt). The Alps Pot fits very snugly into the mount, so don't press it all the way in until you know you won't be taking it out. It can still be removed with some force, however, just avoid pushing it all the way in until you're ready to connect the extension rod. This works just fine with the Pete Millet Alps Pot PCB.
A small 3D printed bushing is also part of the "kit" to allow a 6mm OD tube (or solid rod) to be centered in place and allow rotation of the external knob with no play. A little drop of machine oil will help create a smooth rotation.
Two additional pieces of hardware are needed. A 6mm OD tube, or solid rod (aluminum or steel) [200mm or longer] and a 6mm to 6mm coupler, both which can be found at Bezos's bookstore.
I'm willing to provide a kit at my cost + shipping if you don't have a 3D printer. However, for those folks with a 3D printer, this is a fun way to do a little more DIY vs buying something on Aliexpress. [Search for "Alps RK27 extension" to find those options]
Files attached in Zip file below are 3MF files. If you need STL files (or others), please ask.
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