Hello guys, I'm relatively new to KiCAD, but I finally created my first PCB Layout. I want to use it as a part of a MIDI controller with 32 potentiometers. My plan is to cascade four of these PCBs in order to get the values of all of the potis. The heart of it is going to be a Multiplexer which I'm going to feed through the 2x15 IDC cable. The PCBs are all going to get connected to a main PCB which has a Teensy on it. Do you maybe have any critic or observations which I maybe overlooked? If not, then it's time to order those PCBs! :smiley: Also I'd be happy about good tips on where to order these! I thought about jlcpcb. (I live in Germany) I'd be grateful about every helpful comment. :slight_smile: [Bildschirmfoto 2022-11-21 um 20.45.14] [Bildschirmfoto 2022-11-21 um 20.58.10]

@LarryD Oh, you are so right. I just changed it. I also made the power rail thicker, as @PerryBebbington suggested. [Bildschirmfoto 2022-12-01 um 19.44.57] @PerryBebbington Haha, of course not! I'm glad you asked. :slight_smile: He is a great friend of mine. We studied Sound and Music Production together and both share the love of music, synths and everything related to audio. He is a greatly talented producer and teacher and also the only person I've ever met (besides my girlfriend) who became pretty much a part of my family. Olean is his producer alias, hence the name Olean 32 (32 knobs). He is going to use it mainly to map his soft synthesizers to the controller but also for mixing/mastering for which he plans to prepare different racks, pre-mapped to this controller. :slight_smile: You can check him out if you want to: https://www.youtube.com/@OleansHouse

Thank you for the story behind the board, that's the kind of thing I love about this forum and which keeps me interested :smiley:

Very close now ! Move power trace away from the mounting hole and watch clearances. [image]

Could it be...? the final one..? :smiley: [Bildschirmfoto 2022-12-01 um 20.01.21]

@LarryD @PerryBebbington Here are also some pictures from earlier stages. :slight_smile: The huge cable mess is also the reason why I decided to make proper PCBs and have a neat cable management :smiley: [WhatsApp Image 2022-12-01 at 20.00.07] [WhatsApp Image 2022-12-01 at 20.00.25] [WhatsApp Image 2022-12-01 at 20.00.48]

[image] If you are going to add labeling see this link: [image] Share tips you have come across General Electronics Making a Reasonable looking Test Jig The following images show how to build a test jig. [A] Design your front panel layout. Print a 1:1 paper copy and add double stick tape. Laminate. [B] [C] [D] [E] [F] [G] Enlarge the holes for your LEDs switches etc. [H] [I] [J] [K] See this post for soldering the proto board components: [image] Clearances: [image]

Have you investigated the cost of PCBs to mount the pots on, without the wiring? I suspect it would not be outrageous.

@LarryD thank you for the advice! I didn't plan any labeling for this one but it's a great resource for future projects! :slight_smile: I also fixed the trace you've mentioned. @PerryBebbington Not yet! I thought it's easier to troubleshoot this way though, instead of having the big PCBs with the pots directly mounted.

[image] matesi: Is it a project from you? :slight_smile: Similar, just tweaked it a bit. Is that Stainless Steel ? :astonished:

PCB for Multiplexer Layout

Projects General Guidance

LarryD December 1, 2022, 7:14pm 69

If you are going to add labeling see this link:

Clearances:

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PCB for Multiplexer Layout

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