# My first full-DIY eurorack and keyboard suitcase **URL:** \ **Category:** DIY STUFF\ **Created:** [April 23, 2020, 7:09pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711 "2020-04-23T19:09:04Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Piecho](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/piecho/32/1782_2.png) [@Piecho](https://lookmumnocomputer.discourse.group/u/Piecho)\ **Post date:** [April 23, 2020, 7:09pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/1 "2020-04-23T19:09:04Z")
![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/f/f7f104487b2b82e41adb93b0034a73c17f3aca13.jpeg) Hey guys, I want to share my project I am working on for some time. I designed and created first time so large wood project not having best tools. So, finish is not perfect, but it feels solid and have this rusty, long time used and forgotten, style. Goal to create portable eurorack case for 2x120hp and keys is achieved. I used 3-layers plywood and mixture of vinegar and old steel screws to age the wood. On the back is small plate on hinge and burr that make all stable when is opened. As you can see I have some poorly-formed rails with nuts. Yo know the cost of traditional eurorack rails, I paid for 3m of this, used in advert business, including nuts, less than 5$. Now I will probably just go with the wood and screws, but here it is - works, i tested it in first module that is modified delay from Ali. Plate for module is made from old beige PC case that first time came pretty harcore-industrial looking : ) I am going to use as a keys Casio SA-20 that I will curcuit-bend and cut the speakers off. That will make me place to add drum machine I think about - DrumKid on Arduino. Top part for DIY modules, there i plenty of space for experiments. If you have any questions feel free to ask, I will do my best that you can use my experience before you start design and making your own. 2 more pics: ![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/a/abb2d2f802e7cb65bd345c54b7b6c45696d7fb72.jpeg) ![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/5/515b0c37760ef0624475990557375075e678e850.jpeg) ---
**Author:** ![Jos](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/jos/32/151_2.png) [@Jos](https://lookmumnocomputer.discourse.group/u/Jos)\ **Post date:** [April 23, 2020, 7:18pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/4 "2020-04-23T19:18:11Z")
> [@Piecho](#): > > pretty harcore-industrial looking Ha, the black bits make it look like the screws were electrically welded in. ---
**Author:** ![Piecho](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/piecho/32/1782_2.png) [@Piecho](https://lookmumnocomputer.discourse.group/u/Piecho)\ **Post date:** [April 23, 2020, 7:32pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/5 "2020-04-23T19:32:13Z")
Yeah, probably heating due cut plate or screws made that : ) ---
**Author:** ![Jos](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/jos/32/151_2.png) [@Jos](https://lookmumnocomputer.discourse.group/u/Jos)\ **Post date:** [April 23, 2020, 7:46pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/6 "2020-04-23T19:46:34Z")
Have you build any modules yet? ---
**Author:** ![Piecho](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/piecho/32/1782_2.png) [@Piecho](https://lookmumnocomputer.discourse.group/u/Piecho)\ **Post date:** [April 23, 2020, 7:49pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/7 "2020-04-23T19:49:06Z")
As I posted now the picture - only mod of module from Aliexpress made for echo/delay. I am experimenting with capacitors values for LMNC SSO and burned some NE555 trying to make APC : ) I hope Sam will upload scheme of improved SSO, I will take look on that and make module basing on improved module. I hope I will get parts soon for the power the rack - I have power supply form the laptop and ordered parts for this project - [http://nozoid.com/diy-eurorack-power-supply/](http://nozoid.com/diy-eurorack-power-supply/) ---
**Author:** ![Jos](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/jos/32/151_2.png) [@Jos](https://lookmumnocomputer.discourse.group/u/Jos)\ **Post date:** [April 23, 2020, 8:05pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/8 "2020-04-23T20:05:55Z")
Do you have experience with the converters used in this project? Won’t they introduce unwanted high frequency noise (they are switched mode devices)? ---
**Author:** ![Piecho](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/piecho/32/1782_2.png) [@Piecho](https://lookmumnocomputer.discourse.group/u/Piecho)\ **Post date:** [April 23, 2020, 8:12pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/9 "2020-04-23T20:12:17Z")
They were recommended me by other forum user as easy, simple and reliable way to deliver power. I can make measurements you want to know when I mount them. ---
**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\ **Post date:** [April 23, 2020, 8:14pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/10 "2020-04-23T20:14:18Z")
> [@Piecho](#): > > As I posted now the picture - only mod of module from Aliexpress made for echo/delay. Now that you mention it, that board does look a bit familiar: ![IMG_6050](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/b/be1d1b2d127c2f2c1247f38c38ca5b49caacf1ff.jpeg) ---
**Author:** ![Jos](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/jos/32/151_2.png) [@Jos](https://lookmumnocomputer.discourse.group/u/Jos)\ **Post date:** [April 23, 2020, 8:15pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/11 "2020-04-23T20:15:30Z")
Oh yes, please share your (future) experiences! ---
**Author:** ![Piecho](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/piecho/32/1782_2.png) [@Piecho](https://lookmumnocomputer.discourse.group/u/Piecho)\ **Post date:** [April 23, 2020, 8:22pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/12 "2020-04-23T20:22:51Z")
Yeah, the same one. You made it more professional and solid than me : D ---
**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\ **Post date:** [April 23, 2020, 8:24pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/13 "2020-04-23T20:24:40Z")
I’ll consider mine obsolete in a week or so though… ---
**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\ **Post date:** [April 23, 2020, 8:38pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/14 "2020-04-23T20:38:35Z")
The LM2596 operates at 150 kHz ±15%, which may or may not be a problem, depending on module (it’ll usually get filtered out). But I’d be more concerned that the design appears to rely on the exact schematics used by some subset of all the chinese manufacturers of the converters you’ll find on ebay/aliexpress; while the IC can produce a negative output if wired up correctly, the regulator boards you get off the internet aren’t explicitly designed for that, and you have no idea what you’re buying (and neither has the seller). But I guess it falls in the category “if it works, it works” 😃 ---
**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\ **Post date:** [April 23, 2020, 8:52pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/15 "2020-04-23T20:52:06Z")
And if it doesn’t work, there’s lots more to think about here > [@Power supplies choices?](https://lookmumnocomputer.discourse.group/t/power-supplies-choices/357): > > so im starting this topic as I get a lot of questions regarding power supplies, and there are a heck of a lot of options! the great thing is with this format is the power supply is the same as eurorack. so with that in mind. you can use the options open to eurorack. I guess it limits out things like the 4ms power as that has a eurorack power input module. but there are lots of options! the go to for me is the mfos style wall wart power supply and I always suggest either the wall wart one by mf… ---
**Author:** ![MarkKelsall](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/markkelsall/32/1261_2.png) [@MarkKelsall](https://lookmumnocomputer.discourse.group/u/MarkKelsall)\ **Post date:** [April 24, 2020, 7:59pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/16 "2020-04-24T19:59:58Z")
I like the look, making things look used is an art. Plus, you got a really good deal! Building things for a low price takes creative thinking. 🙂 ---
**Author:** ![Piecho](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/piecho/32/1782_2.png) [@Piecho](https://lookmumnocomputer.discourse.group/u/Piecho)\ **Post date:** [April 26, 2020, 7:19am UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/17 "2020-04-26T07:19:08Z")
I just red the update notice > UPDATE2 : I was told (thanks fg) that only LM2596-ADJ jm88rp, jm74rp or jm84rphs works. hw411 board with LM2596-ADJ jm97rphs don’t works. So I did not recommend using this schematics anymore. I keep this page online only for archive. So I guess I need another design, I see only hw411 on Ali. Do you reccomend any cheap and easy using old laptop power supply? ---
**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\ **Post date:** [April 26, 2020, 7:44am UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/18 "2020-04-26T07:44:29Z")
Check the topic @analogoutput linked to earlier for a bunch of options: > [@Power supplies choices?](https://lookmumnocomputer.discourse.group/t/power-supplies-choices/357): > > so im starting this topic as I get a lot of questions regarding power supplies, and there are a heck of a lot of options! the great thing is with this format is the power supply is the same as eurorack. so with that in mind. you can use the options open to eurorack. I guess it limits out things like the 4ms power as that has a eurorack power input module. but there are lots of options! the go to for me is the mfos style wall wart power supply and I always suggest either the wall wart one by mf… The frequency central supplies mentioned there are cheap and popular, if you can find a good wall wart. ---
**Author:** ![Piecho](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/piecho/32/1782_2.png) [@Piecho](https://lookmumnocomputer.discourse.group/u/Piecho)\ **Post date:** [April 26, 2020, 8:00am UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/19 "2020-04-26T08:00:16Z")
Looks good. As I assume I may use this design in pair with me 19v 85W laptop power supply if I connect one module hw411 before and set it in 12v? ---
**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\ **Post date:** [April 26, 2020, 8:22am UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/20 "2020-04-26T08:22:57Z")
The frequency central supplies mentioned there expect 12 V AC, not DC. Creating ±12 V from laptop supplies is non-trivial; you need robust DC/DC converters, and the result still isn’t necessarily great (see the discussion of switched supplies in that thread for why). There are some designs out there that use industry standard converters to go from DC to ±DC, e.g [the D112](http://dintree.com/#D112) that was discussed [here](https://lookmumnocomputer.discourse.group/t/need-assistance-locating-a-substitution-part/409), but at that point it might be easier (and cheaper) to use e.g. an RT-65B supply. But I’d suggest taking the power supply discussion to that topic, to get more eyeballs on it. ---
**Author:** ![Piecho](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/piecho/32/1782_2.png) [@Piecho](https://lookmumnocomputer.discourse.group/u/Piecho)\ **Post date:** [April 26, 2020, 11:29am UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/21 "2020-04-26T11:29:15Z")
What about module like that? As I see that will cover +12 and -12v, +5v i should be able to make using 12v and correct transitor? > **[US $6.6 20% OFF|20W + 5V 24V Positive & Negative Dual Output Power...](https://www.aliexpress.com/item/4000319027233.html)** > > Smarter Shopping, Better Living! Aliexpress.com ---
**Author:** ![Piecho](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/piecho/32/1782_2.png) [@Piecho](https://lookmumnocomputer.discourse.group/u/Piecho)\ **Post date:** [April 26, 2020, 3:30pm UTC](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711/22 "2020-04-26T15:30:44Z")
Ok, maybe another way - connecting these 2x LM7812 12V and LM7805 5V as on Nozoid scheme will be good idea? > **[US $1.1 |1PCS LM7805 LM7806 LM7809 LM7812 DC/AC Three Terminal Voltage...](https://www.aliexpress.com/item/4000315483530.html)** > > Smarter Shopping, Better Living! Aliexpress.com [Next page](https://lookmumnocomputer.discourse.group/t/my-first-full-diy-eurorack-and-keyboard-suitcase/711.md?page=2)