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After reading up on some of the modules, I've created another iteration:

Most notably is that I've taken out the Metron sequencer and Mutant Clap, swapped out the Performance Mixer for Cosmix Pro, re-added the Scrooge, and added Scrat and Messor.

The Numeric Repetitor and Traffic (thanks for the suggestion, looks really interesting) will help with rhythm generation. Scrooge can help with sequencing as well (I've added a 4hp blank panel as stand-in for Della next to it), and of course Pam's can help with sequencing as well. The Numeric Repetitor is a module I already own, and I'm glad that it found it's place into this rack. I think it could be a very interesting module to combine with Traffic and DPLPG.

Cosmix Pro "only" has six channels (and only two are stereo), so I had to take out one of the drums. Mutant Clap was the one that I was least interested in, but it "solved" a problem I had: I really want Mutant Hihats, and it's 13hp... those odd numbered modules can be frustrating =P So when I discovered Scrat, which is 9hp, it solved that problem, in addition to sounding really awesome. It might be awkward to have two filters, but I think Steve's and Scrat both bring enough to the table. Also, I agree that the clap can be handled by Rample, so out it went.

And again, thanks for suggesting the Messor, I think it will work very nicely as a glue compressor for the whole rack ^_^

I appreciate all the feedback - there's a lot of modules that I'll read up on, the drum machine will evolve more before it's final state, that's for sure (if there even is such as thing as "complete" with eurorack systems =P )

There's a lot of modulation in the second iteration for sure, and I wouldn't end up with such a beast in the real world, as I would buy it piece by piece over a long time, and would find the soft spot long before something like this. That said, I could probably skip half of the mirrored modules and still have enough. And I do enjoy the use of 1U-modules that was suggested earlier, so I did another iteration, this time with 7u + 104hp:

I swapped the Performance Mixer mk2 with mk1, as it is much smaller, and should be enough for this set of modules. I like this setup, but just so it's explicitly said: I probably won't end up with this. I plan to buy modules one by one over a long time, and interests will change with experience and research, so who knows where I'll end up. That's part of the fun with modular synth for me ^_^

I might throw out Metron altogether, as it is quite big for such a case, and rely on the Oxi One as sequencer for drums. With the freed up space I could add back Pam's, which could handle the work of handling accents (thanks for the advice, hadn't thought of that), hell, I might even add back Scrooge (I'm fond of the idea of the other drum modules handling "traditional" electro drum sounds, and the Scrooge just adding chaos and cool details) and their new extension, Della, and use Scrooge as the off-load sequencer. But I just saw Cinematic Laboratory's video on it, so I need to understand it better first (hopefully it will be added to MG soon).

All to say - who knows where I'll end up wrt the drum machine. The exploration is part of the fun, and thanks again for the feedback, it gives me even more ideas ^_^

Another iteration done, would love to hear what you think ^_^

I've removed the Scrooge and introduced a bunch of modules to handle CV generation and modulation. Most notably I've introduced Pamela's Pro Workout, mainly to a) handle clock manipulation, and b) as a LFO module, but there's probably a lot more I can use it for. There are more LFOs, a couple of S+H modules, and a couple of 3x MIA to mix some interesting CV signals. There are probably more things I could add (like switches - I'm not too familiar with them, but I'll research more on their uses), but I think these changes should bring a lot of possibilities.

EDITED Friday April 11, 15:14

Hi all, thanks for your replies. You've convinced me that I should add more modulation modules. I'll revise the design and come back when I have an update ^_^

Just wanted to give some more context, to paint a better picture so to say, and to reply more concretely to some of the feedback.

Pulsar-23 it's definitely an interesting choice. I already own the Lyra-8, and in "money's no limit"-land (aka fantasy world) I'd have a Pulsar-23 and Ornament-8 as well. In fact, if money were no limit, I would buy Pulsar-23 and build a drum machine with eurorack modules, just because it sounds like a bunch of fun. Completely overkill, I know, and there are probably other, more efficient ways of producing music, but it sounds like a bunch of fun.

Wrt using only the Oxi One sequencer: I'm planning to have multiple racks covering various functions, and the idea is that the Oxi One can step in as a sequencer in all of them, but for the drum machine I want to have an additional sequencer to offload the "main sequencer". I have this setup in my Suitcase rack, using the M185 sequencer to handle some of my sequencer needs, and the Oxi One for the rest. I've watched some videos of people using the Metron module, and it looks very good for drum modules, and more importantly, it looks like fun ^_^

I do have 1U modules in the suitcase, and I agree they are very handy, so I'll consider switching out the drum machine case for something with 1U modules as well. I chose the Eurorack Go rack because it fits neatly into what space I have available in my home studio, but I'm aware of the problems with Behringer, so I'll take that into consideration as well.

Just to give some ideas of the current setup of my racks:

• Drums: At some point this will be moved into a larger case, with more functionality (basically what I'm trying to plan for with the rack in this thread). I'm thinking of transforming the smaller case into a pure utility rack, with various modulation sources and ways of manipulation, as it's central to most of the other racks.
• Bass: For now Elmyra covers most of my bass needs (but can of course use other voices for bass, and Elmyra can be used for other things)
• CV/IO: Most importantly the ES-9, mostly for recording (I have a patchbay that all of my audio from various sources are going into before being routed to the mixer, and all signals are split so a duplicate signal are sent to the ES-9 for recording), but the Turing Machine is also very useful, especially for my Solar 42F, where I use the outputs from the Pulses module to drive the gates for the four upper voices.
• Suitcase: This is where most of my modules are currently, but is driven by Coral and Pluck as voices (although cDVCA can also be used as a voice), and sits next to Lyra-8, and which I sometime use as processor to add delay and drive.

In addition, as mentioned, I also have a Solar 42F, which I use mostly for drones, textures, and "background" noises. (I also use Lyra-8 for drones sometimes, especially the bassy, gritty sounds are awesome, but I find it a bit hard to control, so most of the time I use it for the effects.)

I want to add another case at some point, about same size as the planned drum machine, to facilitate a bit more spacious and "out there" modules, such as Deckard's Voice, Collide 4, and Oneiroi (for those interested, you can see the current state of this idea here - but note that it's very much a work in progress, and it will need to offer more modulation features as well).

At some point I'm thinking of buying a big rack, something like the Erica Synths Megarack, but that's waaaaaaay into the future. Who knows, maybe my interest in eurorack will fade before I get there. (All of these expansions are going to take me years, so this is nothing that's going to happen anytime soon.)

Also, in case it's relevant: I'm not a professional musician, I do this on my spare time. The music I make is mostly leaning into ambience, but I also enjoy more "harder" styles from time to time (e.g. techno).

Yeah, it's an expensive hobby, but it's a ton of fun ^_^

I'm thinking of buying a Behringer Eurorack Go (2x140hp), and it's primary function is being a drum machine. Currently I only have two of the modules (Ultra-Kick, Pipe), so I'm very open for suggestions on other modules people might recommend. Also, this is probably waaaaaay overkill, but I think it could be a very fun and powerful system, which is the end goal ^_^

To give a bit more context: the rack will have two adjacent systems, which can provide some functions such as various effects (not sure which), LFOs, VCAs, and mults, but apart from that this system should be mostly self-sufficient.

Some thoughts on the modules:

• Pipe to connect to Oxi One for global clock and various sequencers
• Metron + 4x Voltera should cover most of my sequencer needs (realistically I probably won't need to use all at once)
  • 1-4: Ultra-Kick (gate), Ultra-Perc (gate), Kraken (gate + accent),
  • 5-8: Rample (4x gate),
  • 9-12: Mutant Clap (gate + accent), Mutant Hihats (2x gate + accent),
  • 13-16: Scrooge (5x gate)
• Scrooge has its own sequencer as well
• Performance Mixer mk2 for mixing needs + extension for returning aux 1 and aux 2.
  • 1: Ultra-Kick
  • 2: Ultra-Perc
  • 3: Kraken
  • 4: Rample
  • 5: Mutant Clap
  • 6: Mutant Hihats (open)
  • 7: Mutant Hihats (closed)
  • 8: Scrooge
  • Stereo out goes to my main mixer, where I also can mix in delay and reverb.
• The rack doesn't really have space for effects, and it's not that important for me, so I've limited it to MFX and 2x Steve's M-22. I like the idea of two filters in stereo, as I've enjoyed that function in the Solar 42F, and I've heard good things about Steve's M-22.
• I reckon the rest are self-explanatory, but I'm liking the ADDAC213B modules to ease some of the cable mess.

I know I probably should have more attenuaters and voltage manipulation modules in general. And the Scrooge will probably go in later iterations, as it takes a lot of space. But I really like the sounds it make (from what I've heard on YouTube), and I've grown quite fond of its sibling, the Elmyra 2, so I'm pretty sure I'll enjoy it.

This is my first post in this forum, so apologies if I've forgotten to cover anything vital. If you have any questions, please let me know and I'll try to answer ^_^

EDITED Friday April 11, 03:04