DIY powered patch panel

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otterfox
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DIY powered patch panel

Post by otterfox »

I've posted in a couple of other spots, but I wanted to reach out with this group.
I wanted to see if any DIY'ers would be interested in this patch panel I made. I've found this quite useful in designing/testing modules and circuits. Please reach out to me if you want one. [EDIT] Based on interest, I can give a better estimate of when I can get them sent out.
This is a 3U sized module roughly 18 HP.
Otter Mods euro patch panel v3.jpg
Last edited by otterfox on Tue Jan 24, 2023 12:47 pm, edited 1 time in total.
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joem
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Re: DIY powered patch panel

Post by joem »

I see pot breakouts, jack breakouts, and power breakouts. What are the other things? Like the rightmost headers on the top half (presumably B1-B4?) and B5-B8 on the bottom half?
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otterfox
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Re: DIY powered patch panel

Post by otterfox »

Ah, good eye. Yes, those are just blank "bus" patch points. Like (a long time ago) when I used to need to share a ground point between pots or jacks or something. So they are kind of like mults.
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Joe.
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Re: DIY powered patch panel

Post by Joe. »

Hi Otterfox, just reached out with some links for you in a private message, so you're aware of some recent changes to forum rules.

It looks like a great DIY project and tool, for integrating breadboards during prototyping :tu:
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Re: DIY powered patch panel

Post by roboDNA »

otterfox wrote: Fri Jan 20, 2023 1:19 pm I've posted in a couple of other spots, but I wanted to reach out with this group.
I wanted to see if any DIY'ers would be interested in this patch panel I made. I've found this quite useful in designing/testing modules and circuits. Please reach out to me if you want one. I was thinking $10 a (blank) panel is pretty reasonable, but I could also make fully built ones for $35 (to cover parts). Based on interest, I can give a better estimate of when I can get them sent out.
This is a 3U sized module roughly 18 HP.
Otter Mods euro patch panel v3.jpg
Looks very cool, considering I recently build similar boards for myself :) I guess things move at the speed of thought.
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Re: DIY powered patch panel

Post by bkbirge »

Pretty awesome idea, yeah I'd be interested. PM'd

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otterfox
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Re: DIY powered patch panel

Post by otterfox »

Hey folks,
after a lot of feedback and redesign, I've decided to update the dev panel.
Otter Mods patch panel v4 upgrade.jpg
The upgraded panel has the following features:
Size - 3U, 28HP
16 pots
16 jacks
4 latching buttons
2 momentary buttons
5 LEDs
2 adjustable pulse oscillators for timing signals
2 power headers for access to +5V, +12V, -12V and GND
8 5-pin bus headers for signal distribution (basically like mults)

Includes jumper points for all the above.
As mentioned before, please contact me directly if you're interested in one of these. ETA for boards will be based on interest. Thank you!
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Re: DIY powered patch panel

Post by DCDanno »

Interested. Message sent.
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The Peasant
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Re: DIY powered patch panel

Post by The Peasant »

This looks very useful, definitely want one!

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Re: DIY powered patch panel

Post by KSS »

otterfox wrote: Tue Jan 24, 2023 12:55 pm Hey folks,
after a lot of feedback and redesign, I've decided to update the dev panel.
Unless the switch labeling space is required for traces underneath it's very wasteful of HP.

Change the labeling to between the SW and the HDRs. You only need -1 and -2 since the Sw itself is already named on its left.
Mom and Latching Can be compressed like the ARP 2600 FM -AKA letter inside the extents line --MOM--

Then the LEDs will fit above the osc out jacks and you can remove 2-4HP without any loss of utility.

Edit: I also think you've missed your intent by putting the SW HDRS on the opposite side of them! Away from the patch panel itself!
Every patchcord to those HDRs is going to impede access to the switches themselves. And also require longer patchcords.

I'd put the LEDs innermost with the SW HDRs next to them. <--You're likely to use these together anyways and the LEDs being somewhat obscured by a spaghetti-fest is not going to matter as much as other more tactile elements so obscured. Then the SW's are on the outer most part of the board for best access, yet still relate to the LEDs.

And all the patchpoints are mid-PCB where they should be!

Edit2: I would also exhange the osc rate pots and their jacks. Keep all the touchables at the board edges. I don't see any HDRs for the osc outs? :hmm: If not already there, they need to be and should be innermost.

Edit3: No normals for the jacks? Re-label jacks HDRs as A,2,3,4,B,2,3,4,C,2,3,4D,2,3,4 to the left of the present single strip HDR position to make room for a double wide HDR to include the normals connections.

Add a test point loop for an oscope probe clip to GND.

The gold 2x8 above label Mods 2023 appears to be the Euro power connector on the backside?
Need to add patch-able HDRs for the Gate and CV bus or else why use a 2x8? 5V too! <--These likely need to live below the gold footprint. There's definitely room for a single row just under the present footprint. Possibly a dual row if the gold power input footprint is moved upwards 0.100" 2,54mm.
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otterfox
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Re: DIY powered patch panel

Post by otterfox »

Hey KSS,
Thank you for the feedback. I was able to incorporate some of what you suggested and I ended up shaving off 4HP from the panel. I cleaned up some of the header and component placement, and moved the buttons to the outside edge of the board.
Just to comment on a couple of points you called out:
The shield of all the jacks is grounded. That's why there is only the single pin for each of the jacks. I went the "simple" route and did not break out individual pins for the normal of the jack. In my experience, there has rarely been a case I needed to breadboard that up.
I eliminated the jacks for the oscillators, and routed to one header.
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Re: DIY powered patch panel

Post by KSS »

:tu:
The shields being 0V-GND makes sense but doesn't really affect what I meant.

If this is a patch bay for development then part of that development *will* be normalled jacks. You need to allow for it and with the method I outlined you should be able to do so.

Looking forward to seeing next rev in your good idea!
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otterfox
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Re: DIY powered patch panel

Post by otterfox »

Alrighty folks, here is the final revision.
Thank you for everyone that contributed some feedback in the design and functionality of the dev panel.
If you have not already contacted me, please let me know if you're interested in getting one of these. I will be putting in the order within the next week or so.
Check the spec sheet for features.
Otter Mods Powered Dev Panel v5 Documentation.pdf
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patch panel v5A.jpg
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Re: DIY powered patch panel

Post by KSS »

:tu:
But still think access to the jack normals is needed.
Treat utility modules as stars instead of backup singers.
Treat power supplies like Rockstars instead of roadies!
Chase magic sound, not magic parts.
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The Peasant
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Re: DIY powered patch panel

Post by The Peasant »

Interesting to see the evolution of this project!

You can always do the normalization "manually" on your breadboard, but it shouldn't be difficult to double up the jack headers to include the normalized connections as well.

Take care,
Doug
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