My personal favorite feature on that thing is the power switch on the side. 
Very cool machine, @smiths73v3! Congrats!
Great job.
Love the case.
Hi, I just upgraded my V2-Kit to the latest raspberry Pi 4 B. Here is some report / pictures.
The performance of pianoteq is now so much better! After playing a while, cpu temperature rises to max. 65 °C ($ vcgencmd measure_temp).
The new image https://os.zynthian.org/ for Raspberry Pi 4B was taken from here, https://os.zynthian.org/2019-09-24-zynthianos-buster-lite-1.0.0-RC1.zip
Controllers didn’t work right away, because the default setting is Kit V3 instead of Kit V2.
After changing the setting via webconf tool to Kit V2, controllers still didn’t work, but a software update (triggered from zynthian menu) made them work.
Along with upgrading from Pi3B+ to Pi4B, I made some other changes:
- modified the case to accomodate the different hdmi, power and usb / ethernet connections
- added coaxial power connector
- made wooden side elements and aluminum stand to give a more convenient viewing angle
One technical flaw resulting in undervoltage sign and a lot of clicks and glitches while playing pianoteq on raspberry pi 3 B+ was the poor power supply connection via micro USB. The power supply itself was capable of 3 Amperes, so that was fine. I soldered two wires to the respective “Test Pins” on the bottom of the raspberry Pi3B+. Now, power supply is very reliable, no undervoltage and not prone to mechanically loose contacts when touching the connector as it was the case for the micro USB power cable.
As that was very reliable, I made the same for the raspberry Pi4B, see following picture.
In my case, white cable is GND and brown cable is +5V. The other end of the cable goes to the coaxial power connector which you see in the aluminum case next to the original usb power connector. (Note: both connectors can still be used, but don’t power them at the same time as this could result in damaging your raspberry.)
The +5V Pins are labeled TP1, TP2 and TP3 on the board. You can chose any of them.
The GND-Pins are labeled TP7, TP8, TP9, TP12. Again, any of them is fine.
Here I compiled the information:
As for the case, though the original one is already very appealing, I thouhgt i looks a little bit ‘naked’, so I added two side panels and engraved them with the zynthian logo.
The attentive observer will notice that I accidently introduced a Pi phase shift in the right logo 
There are no further mechanical modification needed for the original aluminum case. The case is held in place via the four screws on each side which kind of snap in to the respective dents in the wood.
The two wooden side panels are in turn held together by the aluminum plate.
Just an idea, some holes could be drilled into the bottom plates and a fan could be installed under the plate.
regards,
hal
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Excellent work!!!
I have frequently looked at USB-C connectors and thought, 3 Amps yeah right!. It’s nice to have this confirmed or perhaps my prejudices tuned, either way I suspect you have implemented a hardware mod that will be copied by many of this slavishly devoted crew! I hereby christen it the hal mod! 
You used a coaxial connector, I’ve found them pullout-able in a number of cases but the same is probably true for the Type C, so debate can rage! Would a decent steering diode in the coax line address the two power sources issue, or might the volts drop negate it ?
The Side panels are rather gorgeous! as the idea developed when did you realise you needed a hole for the usb, or did you start your thinking from there?
I don’t know if there’s any spec for space needed around a USB/Ethernet connector but I reckon it probably makes it easier to do simply by touch in the dark so that’s probably another win.
I’ve been looking a lot at display angle, and going back to the start of it all, the Mini moog model D made it a feature! when you see some of the suggested plastic cases they were going to wrap around it all, you have to admire the technical simplicity of the answer. So you’ve now got it adjustable by re-rendering ( is that a thing yet?) the mdf components, What kind of machine cut those out for you? I can’t look at and not think jigsaw, but that’s my age!
So congratulations it’s a thing of great beauty!
But there is, sadly, one outstanding issue. . .
After a cursory glance throu’ the dusty tomes in which we keep such ephemera, and ignoring your multiple false hits in the Van Halen Jump sample debacle, It appears that at no point have you uploaded any musical content 
.
I will of course, as is customary, hand you the scroll 
Lovely piece of work!
Hi,
glad that you like it 
Zynthian is such a cool project so it’s really fun to devote some time to it.
I also thought about a diode in the coax line but the lowest voltage drop is usually around 0.5 V, so that might be too much already.
It could be that the usb-c port provides a more reliable power-connection than the micro-usb on the old raspberry. I haven’t tried it out yet. Since I had already installed the DC socket, I continued to use it with the current rpi4.
By the way, there are also plugs with a safety nut:
The hole in the side panel was considered right from the beginning. True, there needs to be some space around the plugs. I find all my USB-cables fitting, but on the other hand, it’s not that easy to pull out e.g. the wireless receiver for the keypad or to unlock the ethernet cable.
Your guess is right 
, I made the panels using a jigsaw and I further processed it with a wood file and sandpaper. That would be an easy job for a wood cnc machine. For me, it took literally hours.
An audio contribution will follow very soon, promised
regards, hal
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So I finally made my case - with mains PSU, silent 80mm fan to keep Pi4 cool and AudioInject Zero. If somebody likes it I have all .dxf files and shall gladly share (but no support whatsoever!!!).
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And for sound examples - let me get used to it and I will upload the example(s) in due course.
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If anyone else thinks Zynthian looks fantastic in orange and black, raise your hand! 
Great job, @dhrupadia_dad!
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Hi @dhrupadia_dad!
The best way to share while keeping your authorship & merit is making a github pull request to the zynthian-case repo:
- Fork the zynthian-case repo
- Add your folders/files
- Make a Pull Request
If you don’t want to follow this procedure, you can send me the files and i will do it for you, including an AUTHOR file inside the subfolder. But … i really prefer the first method 
Thanks a lot for sharing!!
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Nobody wants to try to make a hybrid case for the Zynthian together with the mini keys keyboard controller? 
The best candidate for the keyboard I see the Midiplus Mini X series (I personally owe three of them - X2, X3 and X6). And it’s my dream to have it together with the Zynthian in one case… Black-orange of course
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I suspect it will be good audio sample … 
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finally recorded some audio output
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Awesome case!
Great work
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Woah! A great job!
This fantastic case reminded me the “case” of the FPGA dev. board I loved most: the Altium Nanoboard 3000. Essential, but beautiful in its own way.
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Hi @zynthianers!
@dhrupadia_dad sent to me the design files and ask me to upload to the github repository, so i did:
Enjoy!
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I have build a zynthian based on v2 all in one, and 7 inch touch screen. The display case allows for changing the display angle.
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Cool! I think you would be better putting the RPi inside the main box. I have similar plans to hinge my 7" display. Memories of MiniMoog 