bkshepherd
commented
8 months ago Updated the design to use cheaper and more readily available Alpha 9mm pots. (RD901F-40-15R1-B10K). These are also smooth shaft pots, so their orientation on the PCB no longer matters.
The second row of pots (4-6) on the GuitarPedal125b hardware are non-ideally rotated 180 degrees. The primary issue with this is exacerbated by the fact that the pots are D-shaft which makes it so that any D-shaft knobs used don't have their indicators line up properly. The work around is to use smooth shaft knobs, but these are hard to secure properly and hard to level properly when used on the d-shaft.
The rotation was unfortunately necessary to be able to fit all the elements onto the PCB. It's not a simple matter of rotating the elements on the PCB 180 degrees. The elements will no longer fit anymore if that is done. I've explored a number of possible alternative layouts to make it work, but it doesn't seem possible with the current set of features.
The use of D-shaft pots was also unfortunately necessary due to the fact that the Bournes PRS11R family of Pots is only available in D-shaft. This family of pots was selected because it was the only pot slim enough to pair well and match the height of the Bounes PEC11R family of encoders.