Angle Grinder Phase LFO

video upload by SCHLAPPI ENGINEERING

"This is the Schlappy Minute.

Today I quickly show you how to use the Angle Grinder as a four phase sine wave LFO, also know as a quadrature LFO, to add life into a simple drone patch."

Talk into it

video upload by SCHLAPPI ENGINEERING and Stazma

"Schlappy Patching 2026 EP.19

Hey there!
Today I want to show you how it sounds to use your voice inside some of the Schlappi modules. We'll do 100 Grits, Angle Grinder, BTFLD, Nibbler and Three Body.

Have fun!!!!"

Schlappy Minutes 2026 Compilation Vol.2

video upload by SCHLAPPI ENGINEERING and Stazma

"As advertised...
All the Schlappy Minutes from May to June 2026, for you here in one place.
Have fun!!"

00:00 Three things to do with the Angle Grinder
02:00 Process drums with Boundary Layer
03:53 Eddy 3 Voice percussions
05:44 Angle Grinder crossmod percussions

Subtle Expressions: Squarp Instruments Hapax Performance

video upload by MKustomAudio

"With recently obtaining the Squarp Instruments Hapax to act as my main standalone sequencer, I've been diving deep into all the functions it offers. This is the first track I've made putting together a number of items such as automation, assign controls, creative MIDI effects (register, arpoly, etc.), BPM elasticity, and adjustable start/stop loop lengths. I've added notes in the video explaining some key points for the track and additional equipment used, but below is a more detailed list of the sound sources:

Korg Arp 2600 M
Novation Peak
Novation Bass Station II
Korg Opsix
Sequential OB-6 Desktop
Elektron Digitakt II
Befaco Oneiroi
Soma Lyra-8, Erica Synths Black 3109 VCF/VCA, Qu-Bit Mojave
Make Noise STO + Schlappi Engineering Angle Grinder, Make Noise QPAS, Intellijel Sealegs
Moog Mother 32, Ritual Electronics Miasma (Erica Synths Black Polivoks VCF in feedback loop), Erica Synths Blackhole DSP2"

Interstellar Radio Mayhem

video upload by SCHLAPPI ENGINEERING and Stazma

"Schlappy Patching 2026 EP.9

Hey there!
Today I'll show you how to use make weird sounds with a small system built around the Interstelar Radio (paired with the Angle Grinder and Boundary Layer). Full on chaos and bleep bloops of death to be expected.

Have fun!!!"

Schlappy #202day jam

video upload by SCHLAPPI ENGINEERING

"It's #202day ! The MC-202 is one of my all time favorite synth so I wanted to build a patch around it using the Schlappy Patching system.
Only the bottom row is used (apart of a Mixswitch to mix the voices).
MC-202 to Angle Grinder for additional filtering.
MC-202 gate out to two Nibblers for drum sequencing and stepped modulation.
Kick drum by two channels of the Boundary Layer.
HiHats by a feedbacking BTFLD in a Boundary.

Have fun!!

More infos on all modules at:
https://schlappiengineering.com"

Schlappy Minutes - 2025 Compilation

video upload by SCHLAPPI ENGINEERING and Stazma

"As advertised...
All the Schlappy Minutes of the year, for you here in one place.
Have fun!!

More infos on all modules at:
https://schlappiengineering.com

Time stamps to all the patches:
00:00 Intro
00:35 Nibbler Chiptune Arp
01:38 Angle Grinder Pings
02:37 BTFLD Noise Generator
03:37 BTFLD Burst Generator
04:37 Angle Grinder 808 Style Kick+
05:38 Three Body Chords
06:34 Drume Machine Destruction
07:34 Stereo Sine & Co-Sine
08:35 Stereo Saw & Co-Saw
09:32 BTFLD CV to Gates
10:30 Boundary Layer Triple Envelope Follower
11:35 Boundary Layer Multi Modulation
12:41 Boundary Layer Transient Generator
13:45 Boundary Layer Cascading Envelopes
14:50 Three Body DX7 Style Algo FM
17:49 Nibbler Reset & Sub
18:42 Drone Part.1
19:41 Drone Part.2
20:43 Bound as Velocity
21:43 BTFLD Parallel Fuzz
22:39 Nibbler Chiptune Scratch
23:42 Boundary Layer Gate Delay
24:58 Band Reject Filter
26:27 Three Body Hard Sync
28:08 No Sine Phase Mod (stay till the end)

#eurorack #modularsynth #modularsynthesizer"

"Granular" Filter Trick - Klavis Mixwitch

video upload by Stazma and SCHLAPPI ENGINEERING

"Roll your own 'granular' filter!

All you need is a sequencial or adressable switch to plug various outputs of any multi mode filter into it and then run it at audio rate. I'll show you how to patch this with the Klavis's Mixwitch and Schlappi Engineering's Angle Grinder.

It worked and here is how!"

Boundary Layer Synth Voice - Schlappy Patching 2025 EP.10

video upload by SCHLAPPI ENGINEERING

"New year for Schlappy Patching! We are no going to upload half of these to Stazma's channel to see if we can get more people to see these patches, so please go over here in two weeks for the next episode: / stazma

It's been a while!
In this one we are going to check how to use the new Boundary Layer module as a full synth voice, and process it with the Angle Grinder, as well as the BTFLD and 100 Grit.

Have fun!!"

808 Kick + | The Schlappy Minute

video upload by SCHLAPPI ENGINEERING

"This is the Schlappy Minute.

Today I show you how to patch a clasic 808 style kick drum and then make it weird, all within the Angle Grinder."

Angle Grinder Pings | The Schlappy Minute

video upload by SCHLAPPI ENGINEERING

"This is the Schlappy Minute.

Today we make lovely percussions with the Angle Grinder!"

Machina Bristronica 2024

video uploads by sonicstate

Playlist:

1. Bristronica 24: MyVolts The Silent Alchemist Nears Shipping

We caught up with Caroline who gave us the latest update to the *Silent Alchemist*, a versatile power hub designed for musicians. Featuring five isolated USB-C outputs and a high-wattage sixth output capable of delivering 100 watts, the device can power a Mac with the remaining outputs providing 20 watts each. Its independent circuits ensure noise-free operation, catering to a variety of devices including the Dreadbox module and Sysmo slope generator.

The Silent Alchemist uses innovative step-up power tips to convert USB-C input to the correct voltage for various devices. There's also new feature: an uninterruptible power supply allowing seamless transition between wall and power bank sources. Also introduced were updated cables, such as silver candy cords and floating ring TRS to TS cables, expanding connection flexibility. The Silent Alchemist is expected to be available in December with a competitive pricing strategy.

More Info:
https://myvolts.com/

2. Bristronica 24: Circuit Happy ML2M Clock Sync module updates

At Bristronica 2024, we caught up with the creator of the *ML2M*, who introduced us to the latest version. The ML2M is a compact Eurorack module with Wi-Fi capabilities, allowing seamless synchronization with Ableton Live, Bitwig Studio, and iOS music apps using Ableton Link without the need for cables. It either connects to an existing network or creates its own, ensuring robust sync even in environments with unreliable Wi-Fi. The module, which retains its 2HP size, now features MIDI integration through TRS jacks. Users can access a web interface to configure each output for different clock divisions and reset triggers, making setup straightforward and flexible.

Alongside the ML2M, there's also the Missing Link Junior. This desktop version offers the same functionality but in a box format, complete with MIDI and CV clock outputs. Both products are now accessible, with a starting price of $250.

3. Bristronica 24: Archaea Exchange Patching Module

At Machina Bristronica 2024, we caught up with Arran from ‪@archaea_modular_synthesis‬ who presented the *Exchange Module*. This programmable patcher, a year in the making, evolved from its early prototype stage to a fully functional module. Arran explained how the Exchange can route synth voices via a beam controller and three exchange modules installed within the skiff, allowing for versatile patching. Operating like a matrix patchbay, it enables users to select inputs and outputs with the push of a button, create presets, and chain multiple modules for synchronized patching.

Communication between the modules occurs over the Eurorack power bus as well as over MIDI via the USB-C connection. The Exchange maintains analog integrity, ensuring there’s no conversion latency. The forthcoming release expected in late November 2024, includes a USB-driven editor for enhanced control capabilities.

CLICK FOR MORE »

Talking Filters | Schlappy Patching with Stazma

video upload by SCHLAPPI ENGINEERING

"Episode 6 for Schlappy Patching!
Do you know how to make filters talk? It’s fun and one of my favorite patches to do with modular synthesizer, because of the amount of control you can have on the talking.

In this new episode of Schlappy Patching I’ll give it a go with the 100 Grit and Angle Grinder, the two filters of the Schlappi Engineering echo system.

Do you have a favorite talking filter?
Have fun watching!"

Eric Schlappi and Bastien Lavaud - Orbital Mirrors

video upload by SCHLAPPI ENGINEERING

"Part of an improvisational audiovisual jam session between Eric Schlappi and Bastien Lavaud on August 26th in Grenoble, France, lightly edited afterwards.

Audio is Eric Schlappi using a prototype of the Nibbler as a crude sequencer and another Nibbler at audio rate dividing down the lead synths frequency to create the bassline. The lead is a Three Body and the Kick is formed with the Angle Grinder and Boundary modules. There are also some overdubbed blasts of noise using a Nibbler at audio rate with the shift register functionality.

Video is Bastien Lavaud using a mix of @syntonie1487 (including the upcoming Solaire and Seuils modules) and @lzxindustries video modules as well as some video feedback through a camera.

Please watch in the highest available quality as compression is quite harsh on the video synthesis methods used.
Syntonie
https://syntonie.fr/

Eric Schlappi
https://ericschlappi.bandcamp.com/

Schlappi Engineering
https://schlappiengineering.com/"

Massive Eurorack Setup for Sale

Note: links to listings are affiliate links for which the site may be compensated.

via this auction

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Eric Schlappi and Bastien Lavaud - Eyeteeth

video upload by SCHLAPPI ENGINEERING

"Part of an improvisational audiovisual jam session between Eric Schlappi and Bastien Lavaud on November 5th 2022 in Grenoble, France.

This session followed soon after a performance at Modularsquare in Paris and uses similar material.

Audio is Eric Schlappi using mostly Schlappi Engineering modules with a heavy focus on modulating an Angle grinder for the kick and an Interstellar Radio for the noise blasts.

Video is Bastien Lavaud using a mix of @syntonie1487 and @lzxindustries video modules and follows soon after the release of his VU007B and VU003B decoder and encoder modules, allowing for a complete HD video synthesis workflow."

Eric Schlappi and Bastien Lavaud - Slicers

video upload by SCHLAPPI ENGINEERING

"Part of an improvisational audiovisual jam session between Eric Schlappi and Bastien Lavaud on November 5th 2022 in Grenoble, France.

This session followed soon after a performance at Modularsquare in Paris and uses similar material.

Audio is Eric Schlappi using mostly Schlappi Engineering modules with a heavy focus on modulating a Three Body oscillator for the lead and an Angle grinder for the kick.

Video is Bastien Lavaud using a mix of @syntonie1487 and @lzxindustries video modules and follows soon after the release of his VU007B and VU003B decoder and encoder modules, allowing for a complete HD video synthesis workflow.

Please watch in the highest available quality as compression is quite harsh on the video synthesis methods used.

Syntonie
https://syntonie.fr/

Eric Schlappi
https://ericschlappi.bandcamp.com/

Schlappi Engineering
https://schlappiengineering.com/"

Schlappi Engineering ANGLE GRINDER / ingenious vco, lfo, filter & distortion / extensive playthrough

video upload by BRiES

"In this video about Schlappi Engineering's ANGLE GRINDER I demonstrate the different aspects of the module seperately, before throwing it all together in a gritty mayhem of waveshaping and feedback.

ANGLE GRINDER is a versatile piece of gear that can be used to create, shape and mangle audio as well as CV signals. The filter sounds really nice and clean if you back off all the feedback and modulation, but once you start adding the GRIND section to the mix it can produce rich CV controllable distortion. If you use ANGLE GRINDER as a VCO or LFO the linear and exponential FM inputs provide plenty of modulation options. The quadrature LFO outputs can bring life to patches and by adding feedback you can change the shape of the generated sine waves drastically. You can even use ANGLE GRINDER as a make-shift sequencer."

Schlappi Engineering ANGLE GRINDER posts

ANGLORYTHMIC BREATHING / just when you think you understand Angle Grinder by Schlappi Engineering

video upload by BRiES

"The behaviour of the comparators is starting to make sense... but it all falls to pieces from the moment you introduce feedback (which is very easy due to the normalized connections).

I'm getting closer to being able to do a full video about this module."

Korg opsix- Dream vs Nightmare, external modular processing for a simple organ-like patch

video upload by Friendly Noise

"Modules: Xaoc Tallin, Schlappi Engineering 100 Grit and Angle Grinder, SSF Vortices, Intellijel Quadrax.
No eurorack: Strymon Nightsky

Preset used: 014 Ambi Sines. Internal filter and effects are off. The monophonic output goes into Xaoc Tallin for level raising and then the signal goes to 100 Grit for filtering and distortion. The output from 100 Grit goes into the Angle Grinder, where it gets splitted using the dedicated output for low pass and high pass filtering. The splitted signals go to two mono channels of Vortices. The panning of those two channels is modulated with channels 1 and 2 of Quadrax in LFO mode (but not from the beginning of the video). The idea is similar to what a Leslie does, but not trying to emulate the sound. Channels 3 and 4 of Quadrax are also in LFO mode and modulate the filter frequency of 100 Grit and Angle Grinder. Finally, Nightsky adds some ambient reverb. No sequencing or arpeggio were used, but sometimes the intermodulation of oscillator frequencies and harmonics would let you think there is some sequencing."