STRUMYK - Hi-Fi streamer on Raspberry Pi 4 + IQaudIO DAC Pro

The chassis does indeed need some fine-tuning, but I still admire you for putting everything together so that it works. With today's level of complexity of everything, and the low level of all documentation and manuals, putting a device together from "building blocks" is not at all as easy as it seems. PS. I am amazed that no one has yet written that the power supply is blacklisted:)

_ACeK_ wrote:

khoam wrote:

...Always some entertainment

👏 😊 💯 ⚠️
🧐 That's the way of the world some do something pro bono others for 💰 or count on the generosity of "I helped? Buy me a coffee"

@_ACeK_

_ACeK_ wrote:

Give a brightening up

🙃 Ever since I can remember it's always been when I've made a board that I've had a problem with the case My first case I made was for an Atari VCR interface 😇 Made from a round hand wash box 😛 looks terrible but does the job

😎 There was once a guy who put some inventions in a box and patented it as a radio ✅

No offence, but could you please limit the insertion of so many emoticons in the content you post? Maybe it's just me, but it's impossible to read, where I come across your post I let most of it go
Sorry, but I'm reminded of a certain "I'm 6 years old" book

>>21752116 many thanks

>>21752128 here you go, here are pictures of the device from every possible side (I think) :p






>>21752572 That black what the user marked is the line made by the marker. on the 2nd photo you can see my hair (i hope nobody will trace me by that), and as for those things around the screws it is indeed a printing error, but i assure you that the whole housing has no cracks. it's good that it came out, because I didn't add that the version I'm showing is my version, on which I tested a lot of solutions that were corrected in the final version, so you can see a lot of "shortcomings". For me personally more important is the external appearance, which in my product, is simple, minimalist, and clear

acctr wrote:

As it stands, the case could just as well have been made of cardboard, painted orange with crayons with a "designer" logo, the texture would have been better and the case would have gained because "hand made".

i see that some people really cultivate the stereotypical electrode
>>21752574 and this is the kind of opinion I like and respect very much. you express your opinion, not attacking but substantively writing what is wrong. Thank you for the plus!>>21752769 I created a manual that also required a lot of work from me, so I decided to put it in the paid version. As for the feedback, so far I have not received any messages from people who have bought the product, but yes clearly, if there is something to improve, people who bought version 1.0 will get the files for free.
>>21752833 Thank you for your feedback. PS. I am also not interested

Added after 4 [minutes]:

>>21752875 I'd love to get your opinion on what needs to be polished, and I'm serious here, if you want to present what you see wrong there ;D

Pltin74 wrote:

I can see that some people are really cultivating the stereotypical electrode

But I laughed. You think what you presented is some sort of modern design style and paradigm?

Nepto wrote:

Have you perhaps considered whether it would be possible to somehow avoid those screw heads on the front panel?

acctr wrote:

However, to be honest, the case you presented is simple but not great - terrible 3d printing texture and lack of any structural reinforcement, some cracks around the mounts, screws without nuts, bent walls.

I did not notice any cracks. Inside, the enclosure is supposed to be functional first and foremost. And it is, so the rest is just art for art's sake. Let's not exaggerate with the reinforcements either, because it is unlikely to fall apart from standing on a desk top. Aesthetics? Colour? Texture? After all, these are highly subjective issues. Some people like it, others not so much. These screws on the front, for example, are characteristic of a certain style. I even have the impression that the majority of small Asian enclosures and the devices packed in them are now made to this standard. It doesn't quite convince me, and neither does the contemporary retro styling. Well, but others probably do, if it sells?

If something is DIY, then you make your own design, aiming mainly at individual tastes and needs. And if someone wants to have something completely different and "nicer", then let them. But why educate the author of the project about what is to stand in his own home and how it should look on his own table? As far as I am concerned, this box does not irritate me at all and could easily stand in my home too. In any case, it does not differ at all from the "company" products, and beats the Chinese products from various aliekspres if only by its originality and individuality. I also think that it is possible to successfully offer such a set to everyone who is interested. And I will not at all write that I am not interested (as someone above). If it would cost me a lot more to assemble it myself, or I simply wouldn't have the time for such a game.... Then why not?

I'm not referring personally to anyone, but the palpable criticism here of the fact that it's not a true DIY but a "building block assembler" is probably completely out of place today. After all, it is the attempt to build a microcomputer from scratch that would be completely absurd. Especially since the whole concept of Raspberry (and other open-source 'single-boarders') was invented precisely as a support for this kind of self-built project. Anyway, going further down this road.... Should the author also get into the business of growing silicon microcrystals just so that he can one day fully realise a project for himself? After all, even building a simple classic audio amplifier also essentially consists of ready-made components produced by others. Unfortunately, as the scale of integration and the digitisation of electronics advances, there will be less and less "swimming in chloride" and playing with Lutola in hand in our DIY, and more and more such ready-made "blocks", programmers and algorithms. Whether one likes it or not, this is happening. But one thing will probably always remain - the need, one's own conception and implementation of the idea. What will probably remain is criticism, usually the greatest from those who don't even want to build with blocks anymore

>>21752954 and I'm very happy about that, because laughter is good health! and as for your question about this modern style, did I at any point express a sense of superiority and superiority? it wasn't me who pigeonholed the reddit community as "someones out there", so seriously, why bother with a fairy tale ;D

@Pltin74
A big plus above all for not ending up (as with me) with a raspberry in the air, but creating a complete, usable unit. The housing can always be improved. But the most important thing is that you are willing and brave enough to present it and that you are not offended by the comments (some comments are simply trolling). I keep my fingers crossed for the next versions and future projects. If you find a moment, send me a Parcel Post number.

@khoam
The form in which you write this, in places, looks more like nitpicking than constructive criticism. Such statements do not add anything technical to the discussion, instead they effectively discourage the author and others from showing anything. By such comments, this is exactly what people describe as "stereotypical electrode"

>>21752959 I have a very similar approach, I believe that someone may not like what I do and everyone has the right to do so. I also believe that hints and "buts" are needed to improve something. thank you for this comment, a plus flew.

Added after 8 [minutes]:

>>21752975 Thank you very much for your kind words, exposing yourself to criticism and even "trolling" helps to acquire resilience and strengthen character

gulson wrote:

The form in which you write this, in places, looks more like teasing than constructive criticism.

Well, tastes are not discussed. Since I have already been called a troll in public, I kindly thank you for the "substantive" discussion. It has strengthened my "resilience" and character.

Mobali wrote:

Esthetics? Colours? Texture...? After all, these are eminently subjective issues

Such a feature of 3D printing that objects have a texture of poor quality. And this does not only affect the aesthetics but also the usability side because the surface easily collects dirt and dust, which is hard to remove.

Mobali wrote:

On the inside, the case is supposed to be functional first and foremost. And it is, so the rest is just art for art's sake.

Explain where you see this functionality apart from the sizable volume that a box of similar size fulfils.

Jawi_P wrote:

No offence,

😊 No offence I have 17 years (for the umpteenth time) , not 6 Emoji is my way of adding content to a post, especially since plotting has never been on my mind

Jawi_P wrote:

Maybe I just have it that way, but it's impossible to read,

Sorry that I take life casually and not seriously as if the survival of the world depended on it, today you are, tomorrow I am gone Carpe diem

👀 The atmosphere got a little tense for the sake of relaxation and laughing at my enclosures I give two pictures 😎





In one like the blue one I hid the interface, for that the soapbox did the power supply, the osem socket protected by tar-soaked rag insulation, such were the technologies in the late years 80 these

Mobali wrote:

Let's not exaggerate with the reinforcements either, as it's unlikely to fall apart from standing on a desk top.

If you are making something solely for yourself - full agreement. If you (for a fee) make it available to others, who I guess trust that the design has passed the prototype stage, and yet then the top cover warps into a slight banana, then imho it's worth digging deeper into the subject.

@Pltin74 Thanks for the additional pics. I'm assuming you redesigned the rear panel in the final version, as yes strice from an aesthetic point of view the reciprocal arrangement of inputs/outputs/switches leaves a bit to be desired.

1. Connecting the power supply directly to the GPIO pins is not a recommended practice; you bypass the whole power input circuitry and voltage/power negotiation that way.
What power supply are you using? As far as I can see 5V and GND goes directly from the socket. Since you're bypassing the usb-c of the raspberry itself, most power supplies, except maybe the official one, won't allow enough current to flow to power the raspberry itself, let alone the expansion card and screen.
2. Are you happy with the screen used? From experience, such screens have b.poor blacks and b.poor viewing angles, among other things, which is why I would personally rule them out at the start, because in intimate lighting, looking from the side they just look bad.
3. Did you make sure that the RJ-45 terminals go in well, even if the cable has extra covers? Because it seems to me that a more heavily sheathed plug might not want to plug in, so either there would have to be a recess on the outside, or a dressed material on the inside and a shallower socket as a result.

acctr wrote:

Such is a feature of 3D printing that objects have a texture of poor quality. And this doesn't only affect the aesthetics but also the usability side because the surface easily collects dirt and dust, which is hard to remove.

I don't know about 3D printing, but I think it changes a lot:
- the plastic used
- the print settings
Although it is clear that the smoothness and even gloss of injection moulding plastic cannot be achieved, and certainly not with amateur printers.

I have this thought about electrode and diy.
The author clipped together some ready-made modules, installed a ready-made distro, put it into a case that printed itself and voile - it's diy. And you can still make money out of it - but absolutely no criticism is allowed because it is hate speech....

there was a fairly similar project on the same forum 15 years ago:
https://www.elektroda.pl/rtvforum/topic1795424.html
Similar but much more labour intensive. Firstly the selection of components, secondly the installation and configuration of the software and finally the housing itself made of sheet metal. But that project, as a result of criticism, was thrown out of the DIY - because not electronic enough....

1. This is a link to a 15 year old topic. Yes, those used to be the days, now there are no days.
2. There is no denying that the level of DIY 15 years ago was greater. For one thing, the tools have changed: we have 3D printing, ready-made modules, ready-made distros. It's natural that modern DIY is more often about integrating building blocks, designing a case.
But in general there was a higher level everywhere, for example in science, now it's enough to 'paint a leprechaun'. The next stage, it will be, "AI paint me a dwarf".
3. There's no denying that by constant criticism along the lines of "I see you're happy with your build, but maybe explain what you're happy with" there's a discouragement of presenting anything. Basically a DIY section to close.
4. There is a difference between substantive criticism and constant "sticking pins". This helps neither the author nor the quality of the discussion.

Since I have been banned and reprimanded I no longer dare to criticise anything here.
And what I wrote was a reflection - how the world has (ro)changed over these 15 years....

_ACeK_ wrote:

No offence I'm 17 (for the umpteenth time) and not 6 Emoji is my way of adding content to a post, especially as plotting has never been my thing

But I have a sense of humour, cool. And I seriously didn't write that maliciously, I'm just noting the fact that such forms are hard to read. If you don't really care to be read, well . Note that here most have an average of 3 x your age and when someone notices a smiley they first have to figure out what it means

Pltin74 wrote:

This is nothing amazing

Common sense self-criticism, I liked it a lot.
Because actually the design is nothing special, one rather of those quick and very simple ones.
It's a pity that you didn't try to enrich the project with your own invention (apart from the housing).

Pltin74 wrote:

... but interestingly on Reddit the project has been very positively received, and this is my first product that can be purchased on my patreon

Well, in that case, congratulations to my colleague.
And somehow I still don't have the courage to put my "products" up for sale

...


Maybe soon I will show off my Volumio-Player, which I approached in my own way. Unlike the colleague in this topic.

oshii wrote:

Although it is well known that the smoothness and even gloss of plastic from an injection moulding machine cannot be achieved, and certainly not by amateurs

If you print a solid on glass, you get a piano sheen. At least on this side.
Looking at the big picture - at least in my opinion, 3D prints require additional processing. A print straight from the printer's table is just ugly.

Even an interesting cube. I'll ask out of curiosity - this whole Volumio thing has youtube music support?

maestro16s wrote:

Even an interesting cube. I'll ask out of curiosity - this whole Volumio thing has youtube music support?

https://volumio.com/oem-custom-solutions/

Pltin74 wrote:

>>21752875 I'd be happy to get your opinion on what needs to be polished, and I'm serious, if you want to present what you see wrong there ;D

All in all, I think it's only the aesthetics of the screws that could be complained about - the front ones are still ok, although they could have a lens head or be blackened. Rear - preferably in the same style as the front, or at least with chamfered holes to hide the 4 screws holding the rear panel. The rest is OK.

gulson wrote:

There's no denying that by constant criticism along the lines of "I see you're happy with your build, but maybe explain what" there is a discouragement of presenting anything.

I propose that for DIY publications, only AI can ask questions. In "Friendly" mode. This will keep the DIY author's comfort zone intact.

oshii wrote:

I don't know about 3D printing, but I think it changes a lot:
- the plastic used
- print settings

Unfortunately it won't change much, the porosity is due to the 3d printing technique. This is compensated for by the ability to realise the most imaginative designs, which unfortunately is not seen here. For the current ability to access knowledge and open designs, printing a cuboid is no awe-inspiring feat.

In the new photos, you can see the underside, where no screws are sticking out - this already deserves praise (although you can't see whether the Raspberry Pi board is screwed to the posts or not). The back panel, on the other hand, could have chamfered holes to hide the tapered screw heads entirely.

>>21753023 ;D Much health wishes

acctr wrote:

Such is the characteristic of 3D printing that objects have a texture of poor quality. And this does not only affect the aesthetics but also the usability side because the surface easily collects dirt and dust, which is hard to remove.

Mobali wrote:

that is to say, if someone thinks the 3d printing texture is nice and even likes it, that means they have to be sent to Kobierzyn? ;d

acctr wrote:

Explain where you see this functionality apart from the sizable volume that a box of similar size fulfils.

Well yes, why buy a lawn mower when you can mow with scissors, after all it fulfils the same function

oshii wrote:

If you do something exclusively for yourself - full agreement. If you (for a fee) make it available to others, who I assume trust that the project has passed the prototype stage, and yet afterwards the top cover warps into a slight banana, then imho it is worth digging deeper into the subject.

with me this problem has been solved, all I had to do was straighten the print slightly and it is straight. The photo I posted in the head post was taken a long time ago, when the top was still PLA (a material with low thermal resistance), which ended up "melting", which is why the instructions say that PETG is a better choice

oshii wrote:

I assume that you redesigned the rear panel in the final version, because so strice from the aesthetic point of view the mutual arrangement of inputs/outputs/switches leaves a little to be desired.

remains as it is

oshii wrote:

1. Connecting the power supply directly to the GPIO pins is not a recommended practice; you bypass the whole power input circuitry and voltage/power negotiation.
What power supply are you using? As far as I can see 5V and GND goes directly from the socket. Since you are bypassing the usb-c of the raspberry itself, most power supplies, except maybe the official one won't allow enough current to flow to power the raspberry itself, let alone the expansion card and screen.

ok thanks for the insight! i had no idea about that. 5V/2A power supply from botland. In your opinion how else to connect the power supply?

oshii wrote:

2. Are you satisfied with the screen used? From experience, such screens have b.poor blacks and b.poor viewing angles, among other things, which is why I personally would rule them out at the start, because with intimate lighting, looking from the side they simply look bad.

Yes I am! I'm usually looking at it straight on, so I don't mind poor angles (if there are any)

oshii wrote:

3. Have you made sure the RJ-45 terminals go in well, even if the cable has extra covers? Because it seems to me that a more heavily shrouded plug might not want to plug in, so either there would have to be a recess on the outside, or a dressed material on the inside and a shallower socket because of that.

2
Yes, everything goes in as it should

bsw wrote:

The author clipped together some ready-made modules, installed a ready-made distro, put it in a case that printed itself and voile - it's diy. And you can still make money from it - but absolutely no criticism is allowed because it is hate speech...

At what point did anyone mention hate speech? fabulism and over-interpretation I see is a common trait, of people who miss the "good" old electrode

tytka wrote:

It's a pity you didn't try to enrich the project with your own invention (apart from the enclosure).

yes that's right, it was a project that was going to be replaced by something "richer", but unexpectedly it got so much positive feedback that I shied away from doing something "more expensive". This is a cheap enclosure that you can print yourself, assemble yourself and be happy that something you assembled yourself performs a certain function

tytka wrote:

And somehow I still don't have the courage to put my "products" on sale

i was also afraid, but I persevered, and I got profits out of it. but no wonder, when you read the "truest and most important" opinions of old-electro-designers, you get discouraged ;D

efi222 wrote:

The print straight from the printer's table is simply ugly.

in your opinion, I personally like it. but everyone has their own style and their own taste

cinepi wrote:

All in all, I think it's only the aesthetics of the screws that could be complained about - the front ones are still ok, although they could have a lens head or be blackened. The rear ones - preferably in the same style as the front ones, or at least with chamfered holes to hide the 4 screws securing the rear panel. The rest as OK as possible.

Thanks very much, I specifically gave the allen screws protruding because I just like them. There will be some on the back as well, but they are not "in stock" at the moment

khoam wrote:

I suggest that for DIY publications only AI can ask questions. In "Friendly" mode. This will keep the DIY author's comfort zone intact.

As you are already suggesting so much here and sprinkling good advice, I also have a suggestion for you: Set up a forum/group on facebook (whatsapp) or a group chat on messenger called "electrode turnbuckles" (kmwtw ;D) where one activity will be to whine about how everything is now and that it used to be better and now it's worse, and the other - the last activity - will be to set new rules and definitions for words and phrases that only suit you :S

Pltin74 wrote:

yes that's right, it was a project that was going to be replaced by something 'richer', but unexpectedly it got so much positive feedback that I shied away from doing something 'more expensive'.

In my opinion, you have summed yourself up poorly with these words. A couple of dubious layups and immediately the ambition dropped All in all, sad. And you could have fought on.

Pltin74 wrote:

I was also afraid (...) but not surprisingly, when you read the "truest and most important" opinions of the old-electro-designers, you get tired ;D

With me it's not about fear of others' opinions, that's the least of my fears. I'm too big for that With me the problem is something else.

tytka wrote:

In my opinion, you have summed yourself up poorly with these words. A couple of dubious layups and immediately the ambitions dropped All in all sad. And you could have fought on.

it's not about that, it's just that I have a lot of other open projects that aren't 'blocks'. It's not about the likes, but, think what you want, I know better there whether I'm ambitious or not :p

Pltin74 wrote:

ok thanks for the insight! i had no idea about that. 5V/2A power supply from botland. In your opinion how else to connect the power supply?

The safest way would be to connect with a usb-c extension cable directly to the raspberry input. By default the usb provides max. 500-900 mA, only after negotiation is the limit increased to e.g. 3A. So, depending on which power supply the end user uses, he may be surprised, because the device will not start up at all. 500 mA is definitely too little for raspberry + card + display to work.
Unless I'm wrong, someone here will probably correct me.

>>21754292 I will measure today the current draw the raspberry takes, from these pins, THANK YOU!

oshii wrote:

It would be safest to connect with a usb-c extension cable directly to the raspberry input.

If you use an external power supply with USB-C then definitely yes.
On the other hand, if you would use a built-in (reliable) inverter with a current capacity of 3A or better more, then you can safely power the Raspberry via the pins in the GPIO strip.
I, in my rpi projects, supply power from the built-in power supplies (5/6A) via the GPIO and have no problems with this.

just add a dsp 6 channel crossover, amplifiers and cool speakers