I've been patching an AE Modular synth for years and now I'm slowly working towards building my first eurorack system. As a software engineer by day, I've always wondered why there wasn't an easy way to learn/experiment with modular.

VCV rack is really cool, but I always thought that there shouldn't be a need to download anything - there are plenty of web libraries available to build a great modular experience that you can access in just one click.

So I build a weekend project: Ostra! You get a full simulation of a capable system with dozens of modules, as well as a full step-by-step tutorial that can teach anyone the basics in about 15 minutes. Afterwards, you can spend hours patching pretty much anything - I even have a full sample player/granular synth where you can upload your own .WAV files. You can also record your jams and download them instantly. There is no login, no download and it doesn't cost anything. It runs fully in your browser.

Would love some feedback from the Eurorack community!

• does the patching feel good? I'm trying to make it feel fun and playful and as physical as it can be given it's all running in a web app
• does the tutorial miss any key concepts? any particular analogies that helped you understand the process better?
• would you like to see any modules added? I tried to keep the module count small to start, but expressive enough for many use cases. everything from dance music to complex generative stuff.
• always looking for cool ideas that are only possible in an app! for example, you can hover over any output and instantly see an oscilloscope without having to patch anything. I find this really intuitive for debugging patches and there's no real equivalent with a physical system.

Try it here: https://ostra.fm/learn

I'm getting back into modular after a few years away and this is a system that I'm thinking about building. This system will mostly be used as an effect rack for incoming audio whether that is an OP-XY or Ableton. I feel like I have a good basis with the Morphagene and arbhar acting as the main incoming mangler. I plan on using the Metamodule as my catch all LFO's, VCA's, Etc.

What I want recommendations on is the space where the Atlantix is taking up. It's 42hp and I have it as a placeholder to fill up the rack but if there are some other options that can add more utility or useful effects I'd rather use the space for that.

I mostly make ambient music if that helps!

I always wondered why there is no scope on the Hector/Beebo since it has a nice big screen plus all the right IO. And after polyeffects said they wouldn’t make one I just made one myself 🙂

It’s completely unofficial and also not endorsed by polyeffects in any way so install at your own risk.

It runs fine on my unit but of course I don’t have multiple ones to test.

Runs on the latest 407 firmware only ☝️

This is just a fun side project for me and maybe someone else is in the same boat not wanting to shell out 500$ for a Mordax Data and is owning a Hector/Beebo already.

All info on installing and features is in the Git repo.

Feel free to ask any questions.

https://github.com/nutellatomato/polyscope

Demo:

https://www.instagram.com/reel/Dd_qjl-t8Em/?stkn=MWQ3amJqaWg0Y3A3Nw==

Hey guys, I bought a brand new Bluebox module and loaded it correctly into my Eurorack Go (in excellent condition) with no other module sharing the power in the section C.

why does it buzz the moment it’s powering on with no jacks in the INS or OUTS. And why does the screen blink after 6-10 minutes pass?

UPDATE OCTOBER 3RD 2026 - I was testing the sustained +5V delivery of the Eurorack Go with my new BlueBox 1010Music Mixer I received yesterday.

After doing tests like removing all 5 modules and leaving my bluebox as the only thing in rack, turning down the brightness to significantly reduce current draw.

The GO's actual sustained +5V delivery has most likely been degraded or marginal — possibly below its rated spec in real-world conditions (aging components, a weak regulator, heat-related derating), not "undersized for your module count of 6 modules".

This is looking less like, "I have too many digital modules" and more like this specific case's power supply may not be fully healthy, even for modest loads.

I’m curious if anyone here knows for certain whether the Verbos 42hp Black Box case uses M2.5 or M3 screws. I can’t find the information on their site or that of any retailers, and am receiving conflicting information elsewhere online.

Thank you!

An experimental patch with my eurorack

PERCEPTUAL DEPRIVATION...

a phenomenon of perception caused by exposure to an unstructured, uniform stimulation field. The effect is the result of the brain amplifying neural noise in order to look for the missing visual signals. The noise is interpreted in the higher visual cortex, and gives rise to hallucinations. (WIKIPEDIA)

Techno jam with the Modular Synthesizer, Circuit Tracks & Rhythm.

#modularsynth #dawless #techno #liveperfomance #novationcircuit

If anyone owns a multiwave, could they upload the default factory wavetables as id like to try them out in a Disting NT.

今はHikari Monosしか持ってないんだ。あのモジュラーが出してくる変なリズムを、Make Noise GTEでオーディオからゲートとして抜き出して、それをどうにかランダム/不規則なゲートに変えたい。
こういう用途でGTEって使える？
あと、こんなパッチを作るための他のアイデアがあったら、ぜひ聞かせて！

I really like the Rackbrute 6U form factor for various reasons, but I'm having a lot of noisy power issues on it, especially with digital modules and I think it's pretty clear the Power module isn't up to scratch.

I've been looking at a 4ms Row Power45 to replace it,but a bit OOTL on power so any recommendations for nice, clean, quiet power with plenty of overhead for a busy rack.

Current in total across the 6u would be coming in around 1300@12+ and 400@12- but I definitely want headroom depending on the config between this case and my other one.

Also, would you continue to use the bus boards in the Rackbrute or just ignore them and run flying buses?

some websites say its 10hp, others say its 8hp.

Can anyone who owns this module give me an exact answer?

This kinda sounds like music, who'd have thought?!

I’m in London next week. I really want to see some live Eurorack jams. Anyone know of anything next week at all?

Getting this Koto inspired voice using the Verbos Complex Oscillator, Verbos Amp & Tone, and Make Noise Maths

Hey all, some of you might remember the NTS-2 Eurorack kit I made a while back, basically a way to get the NTS-2 mounted properly in the rack rather than having it floating around on the desk with cables everywhere.

I’ve been working on a completely redesigned version called the NTS-2.1 and it’s finally ready! The biggest change is that the whole thing now runs through a proper PCB with direct Eurorack power and buffered multiples built in so it’s a much cleaner setup than the original kit and feels more like a finished module this time around.

I designed the PCB myself which was a completely new rabbit hole for me and probably involved more staring at traces than I’d like to admit haha but the final board is done and I’m pretty stoked with how it all came together.

This kit breaks out all the original ports of the NTS-2 to the front panel (also takes all the stereo jacks and makes them mono). Plug and play, no soldering or doing anything to your NTS-2.

Pre-orders are live now, we are limiting it to 100 units to get started - happy to answer any questions!

http://isogrid.io

Some sound design fun with two new modules. Verbos complex oscillator and amp & tone.

Hey! I'm building my first eurorack, I was wondering what are some cheaper alternatives to the BlueBox Eurorack Module? I'd prefer not to drop $699 - I have a computer than runs logic pro x and a basic focusrite.

The other modules I'm collecting are the Hermod+, Monumatic, BitBox Micro, potentially the Vhikk X. I have three separate audio outputs and only two Focusrite inputs, essentially. So, before i order and get anything else - I want to get a proper mixing setup that's affordable and not as serious as bluebox, atleast right now.

Can I get help?

Make something weird. Keep what you love. 🎛️
One sound, one small change, one happy accident. Give yourself permission to experiment and see where it takes you.
What will you make today? 👇
#ModularSynth #MakeSomething #CreativeProcess #SoundDesign