I already own a dwarf and he works great. But I still want to have another mod device on my effects board. I noticed that mod audio has recently started to open source various materials for mods, so I would like to DIY one.
I’m wondering if it’s possible to DIY a duoX with the available open source material? 
Is it possible that some of the material is currently open source, but key parts of the material are not?
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One possible solution is to use the MODEP - Raspberry Pi Patchbox OS module.
Of course it misses the foot-switches and displays which are quite important for me, but when you think about going full DIY that should be a piece of cake in comparison to the full thing. 
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This project is very cool. However, if the production can be fully functional, it is also necessary to paint the PCB and write the control software.
I now find that duoX has opened the pcb file, I just need to make a sample. The core board is also available in online stores. And it seems that duoX is better than the pi version in both software and performance.
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If you manage to fully reproduce a DuoX we’d of course love to see the process and result!
Indeed recently some more parts of the devices have been released like the source-code for the HMI (Human Machine Interface, aka the displays and device controls) which should make it easier to repair or reproduce the hardware.
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Building your own device would be a very cool endeavour, so I’m intrigued by this thread.
In a more extreme situation, you could plug your guitar into your pc with a USB cable because you’ve built in a MOD device into your guitar
imagine, a guitar straight into a DI 
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I have submitted the PCB file to the proofing company to make PCB, and I am also preparing to purchase the materials. I hope everything goes well. I’ll show guys my process here.
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Well, there is the GTRS/Mooer guitar that can go straight into a DI: GTRS Guitars, Mooer GTRS Guitars int. Prof. 800 DN – Thomann
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I own a faulty Duo X, I suspect it’s a simple fault for someone who knows what he is doing, like one faulty chip or something like that, but I wouldn’t take the time to test everything, order parts, solder etc.
So I’d be ok to send it to someone for a modest price.
Cool idea! If you don’t mind, please ask potential suppliers for price for more than one PCB. I might be interested in buying a PCB, too, and perhaps we could save some money.
I purchased a damaged duo x from denisp and it has been fixed to work properly. But I still want to try and see if it’s possible to build a duoX myself, next I’ll probably buy a rocket chip core board to replace it and burn the system to see if it works.
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I have purchased the core board for the duo x, and by the way I have purchased the core board for the dwarf as well, it’s exactly the same as the one inside the mod device, I don’t quite understand how to burn the image on the mod now, maybe I need to buy a backplane to have access to the burn port?
Do you know an engineer who knows how to burn a mod image device, maybe I can at him and ask him?
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It is just a tool to flash the emmc, needs the device to be in maskrom mode
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