The validity of modular diy

From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive!
User avatar
nuketifromorbit
Wiggling with Experience
Posts: 409
Joined: Thu Aug 13, 2009 3:47 pm

The validity of modular diy

Post by nuketifromorbit »

Numerous times in the past couple of years I've considered getting into synth diy in some shape or form, but ultimately kept chickening out. For a while I considered constructing a paia 9700 as my first analog synth, but eventually decided to play it safe and pick up a doepfer dark energy. Flash forward a year later and I take the full plunge into eurorack format and construct my first case and pick up some modules. At this point in time I'm starting to wonder if its a bit pointless to bother with diy, because from what I can tell only a few manufactures such as flight of harmony, 4ms, etc offer diy kits for eurorack.

While I certainly see the appeal in creating a piece of electronic equipment, I feel that this satisfaction alone wouldn't justify the effort. Is DIY ultimately cheaper than just buying used? In short if diy allows me access to certain modules for less money I'm definitely interested. Ideally I'm not planning on putting together anything extremely complicated, I'm staying the hell away from things such as trackable oscillators, etc. I'm very interested in constructing cv sequencers though. Heres a rough plan in ascending difficulty of what I'd like to build

Passive attenuator
Get lo-fi 4017 sequencer (perhaps modified to run off a doepfer psu)
plague bearer kit
some kind of quantizer or clock divider (4ms?)
perhaps a baby 10 sequencer?
cgs wave folder or other modules
Some kind of more complex sequencer?

I realize that many cgs modules would require some kind of modification in order to run off +12/-12 voltage. In addition to that is it possible to have frac modules running off a doepfer psu? Sorry to hit you guys with all these questions, but after repeated google searches, and lurking at electromusic and here, I haven't turned up much.

*edit
Also I have no lofty goals of designing my own circuits, I would just plan on building other people's circuits.
User avatar
daverj
Vintage Video Wiggler
Posts: 8491
Joined: Fri Jun 19, 2009 11:09 am

Post by daverj »

Cheaper? It depends on whether you count the time involved or not.

If you only count the materials, then most kits and DIY are cheaper. But the amount of time that you'll spend doing it might come out with your time being worth maybe a dollar per hour.

If you do it for the fun, self education, or creativity, it can be worth it. If it's just to save a few dollars, you might be better off getting a part time job and just buy modules with that money.
User avatar
andrewF
Super Deluxe Wiggler
Posts: 4260
Joined: Wed Apr 15, 2009 7:36 pm
Location: WA
Contact:

Post by andrewF »

:agree:
I got into diy cos i could not justify spending the $$ to get a big modular plus i get much more pleasure from something i made myself rather than buying some product and plugging it in.

but we are all different.

perhaps 2 points-
its worth learning a bit of diy so you can repair your modules when necessary. I have a friend with a shitload of gear but doesn't know how to replace a broken toggle switch. Its a $1 part and a 20 minute job, but if he takes it to a repairshop it will be months and well over $100 before he gets it back. (luckily he has me to sort it out)

My modulars are nearly all +/-12V and 90% CGS modules. From memory the only ones that need mods are the VCO and binTic filter. The mod involves changing a single resistor, nothing more.
User avatar
falafelbiels
still learning to wiggle
Posts: 4354
Joined: Tue Aug 04, 2009 7:15 am
Location: Rotterdamm son

Post by falafelbiels »

If you plan to do CGS in euro, you have to build deep or wide. Most of the PCBs are 6" long and this is 4u territory. It's easy to stack them though and you can build a sandwich of several circuits in one wide module. Anyhoo, I believe DIY has spared me some money. Not only that, but there is actually a wider choice of interesting modules available, especially once you start designing your own.
User avatar
Adam-V
Count Modula
Posts: 1514
Joined: Mon Jul 27, 2009 1:08 am
Location: Melbourne, Australia

Post by Adam-V »

DIY is definitely not cheaper than buying ready built modules at least in my experience. The cost of the panel and panel parts alone are usually enough to drive the price over or close to the retail value of a similar module. Where DIY comes into it's own is for modules that are not commercially available or not available in the format that you want them in.

Having said that, there are things you can do to cut the DIY cost down:

1. Make a shopping list of components you need and order them in bulk and from the same source if you can. This will reduce the shipping cost per item.
2. Often, buying 9 of one component will cost you more than buying 10 so check out the price breaks.
3. Same principal goes for panels. I get mine done at FPE and it works out cheaper for me to get a few panels made and shipped at once as the shipping cost is not much more so the individual price per panel comes down.
4. Don't even think about the time you spent on a module.
5. Never, and I mean NEVER add up what you spent on DIY over the last year. I'm still recovering from the coronary I had over my DIY spending last year.

The exception to the above is if you buy a complete kit in which case the economies of scale have already been applied and the result is cheaper than the built versions. Blacet and Elby are 2 good examples of that.

If you're not sure if DIY is for you, starting with passive devices is a really good idea. Attenuators as you have already mentioned are really easy to build as are multiples and gate/trigger combiners. Start with those and see if you enjoy the DIY process. If not, you've not really lost much. If you find your interest piqued, then look at some of the more complex builds like sequencers.

Cheers,
Adam-V
User avatar
wenzel
Learning to Wiggle
Posts: 24
Joined: Mon Apr 19, 2010 4:23 am

Post by wenzel »

In a lot of cases most of the cost of a DIYed module will be the panel and panel hardware. If you're happy to cut and drill your own panels, and stick to using cheaper (but reliable) alpha pots then you'll keep costs down enormously.

Take the fine Yusynth VCO for example...

self etched pcb
+ parts from mouser
+ home drilled panel
= :75: or less

Plus your time of course. But what else would you be doing? Making music, are you serious?
User avatar
Luka
Super Deluxe Wiggler
Posts: 5450
Joined: Tue Jul 15, 2008 9:15 am
Location: melbourne

Post by Luka »

it can be cheaper and be great but it can be more expensive and a total pain in the ass. you gotta have your reasons for getting into diy.

the biggest bonus of buying pro modules is that they are easy to trade
User avatar
zthee
Panelhöna
Posts: 1642
Joined: Tue Mar 03, 2009 3:39 am
Location: Stockholm, Sweden

Post by zthee »

When I started to build my goal was to get it all done cheaper.

Thought cheaper seldom equals nice (YMMV). So after a turn down the cheap track I've shaped up and now I'm spending more. But at the places if feels it's necessary.

I.e. I won't spend premium on op-amps in circuits that is not designed for high quality op amps. Or getting expensive caps just for decoupling. Monoblocks have worked great for people for years, can't see it not working for me? And in the long run, spending $.5 a cap or $.05 a is a big difference. I seldom order less then 100 parts at a time, so I've learned that the hard way... :) Though I am willing to spend cash on pots, switches and the front panel. Things which I will touch and see for many years.

The good thing about DIY is that it gives you access to other stuff then what is in the market right now.

And it's fun! :omg:

(And I've got more then 1000-posts!! :yay: )
No PM's please! Send an e-mail - ttsh(a)thehumancomparator.net

Information regarding the Two Thousand Six Hundred DIY project - > http://www.thehumancomparator.net

_

"Oh Batman, why you got to be so heteronormative?".
active
Common Wiggler
Posts: 216
Joined: Wed Jan 13, 2010 11:20 am
Location: Brooklyn, NY

Post by active »

@zthee - congrats! now go build more!

i just got into this whole modular synth "thing" (read love affair). i currently have some flight of harmony bare bones kits needing a panel and some CGS boards that need some populating. needless to say i can't really comment on if it is cheaper or not.

BUT.

i do think it is really fun. there are a lot of really neat things going on that i am super excited about (like J3RK doing some clone/mod to the Buchla - SWEET!) and i hear about some guy improving on the Mankato VCF. i personally think the best is to have a nice combination of the 2.
User avatar
rollmottle
Put it on Underhill
Posts: 164
Joined: Tue Jan 18, 2011 7:48 pm
Location: Los Angeles, CA

Post by rollmottle »

DIY can be money saving in some instances. Say for example you want to build a Fairchild or a Pultec, building will be much cheaper than buying a vintage one (it will still cost you a few grand and a bunch of your time, but who wants to pay upwards of 5K for a single channel of EQ these days?) Building DIY cables is also a way to save a shit ton of money. I saved thousands wiring up my own cables and TT patchbays.

Aside from the money savings in cables, DIY for me is about the satisfaction of building something useful with my own hands, solving problems and learning something new. That's pretty worth it to me, and in my world, fun.
User avatar
CLee
Super Deluxe Wiggler
Posts: 1953
Joined: Mon Apr 05, 2010 6:49 pm
Location: Chicago
Contact:

Post by CLee »

Modular synth DIY is a massive bottomless pit of frustration... and satisfaction.

I first got into it both to save money and to learn/ challenge myself. There is so much stuff out there right now that DIYers are making available that it would be a shame not to try your hand at it. You may no want to rely solely on DIY to build a system though. Maybe pick a format that you want to buy pre-made modules in and add to it with DIY. It is a modular, so the beauty of it is you can mix and match.

Making it cheaper is the old trade off of time and money. I choose to make my own front panels with aluminum and lazertran. Other folks use FPE, which in the end looks more professional but costs way more. My front panels are only a few dollars apiece to make... but loads of time.
User avatar
MrBiggs
I see dead people
Posts: 3060
Joined: Mon Nov 09, 2009 3:16 pm
Location: Philadelphia
Contact:

Post by MrBiggs »

Modulars by their very nature can't be looked at in any cost/time/efficiency standard. If that were the case I'd be using VSTs and plug-ins with Live all the time.
I had zero, ZERO intent on getting into any kind of DIY when I bought my first modules in Nov 2009. But the more I learned about the use of the modules the more I also learned about the electronics within. When I bought a kit from Flight of Harmony last summer I thought it was to save me money from buying the actual module. However, after buying wires and connectors and spending hours on Mouser and designing enclosures, no way did I save any money. But the satisfaction of learning something is most certainly "worthwhile."

I still haven't finished that joystick kit, but I've built little clock circuits, modified a delay pedal, and I've started building a few small guitar amps for me and a couple of friends.

I have a couple of kids who are kind of learning alongside, and for me it's very important for them to see something other than just the consumer culture. I like them to know that you aren't limited to what's offered in stores, but that they can make and design things themselves. In a similar vein, all of the bikes in my house were built by me from frames and parts. When something breaks, we can fix it. Does it save money? I doubt it.
•Music and stuff: BrianBiggs dot com.
•Current contents:Modulargrid
User avatar
nuketifromorbit
Wiggling with Experience
Posts: 409
Joined: Thu Aug 13, 2009 3:47 pm

Post by nuketifromorbit »

falafelbiels wrote:If you plan to do CGS in euro, you have to build deep or wide. Most of the PCBs are 6" long and this is 4u territory. It's easy to stack them though and you can build a sandwich of several circuits in one wide module. Anyhoo, I believe DIY has spared me some money. Not only that, but there is actually a wider choice of interesting modules available, especially once you start designing your own.
I was super paranoid about ground hum in my system, so I actually kind of over did it in the depth department. I've got a little over nine inches and as a result some of the ribbon cables on my smaller doepfer modules just barely reach the back.
daverj wrote:Cheaper? It depends on whether you count the time involved or not.

If you only count the materials, then most kits and DIY are cheaper. But the amount of time that you'll spend doing it might come out with your time being worth maybe a dollar per hour.

If you do it for the fun, self education, or creativity, it can be worth it. If it's just to save a few dollars, you might be better off getting a part time job and just buy modules with that money.
I live outside of a town that was driven by the banking industry, needless to say finding a second job ain't gonna be easy. Currently I have plenty of time on my hands, and I also have access to my father's plethora of wood working and machine tools. Also just so everyone knows I'm not expecting a drastic reduction in cost, but rather a ten or fifteen percent discount. If it means I save a bit a of money, results in me learning how to do basic maintenance on my modules from other manufacturers (ie jacks, pots, switches), and allows me access to designs not readily available (as in the serge like csg modules) I think it might be worth it. At any rate I'm definitely going to build a couple attenuators with the ancient pos iron I currently have. If everything goes well I'll go ahead and pick up a decent weller. Any recommendations on a musically useful project that aids in the learning of schematic reading? Lastly I'm still curious if its possible to run frac modules off a doepfer psu, because I'd really like to tackle some paia projects? Thanks you so much, you've all been extremely helpful.

P.S.
I currently have a dark energy, malekko anti-osc, a-146 lfo, sq8 sequencer, a-138b mixer, envelator, and a doepfer sample and hold. I'm not going to create a modular thats entirely diy.
loydb
Super Deluxe Wiggler
Posts: 1383
Joined: Sat Feb 13, 2010 6:45 pm
Location: Austin, USA

Post by loydb »

Getting everything to DIY one or two modules is for sure more expensive than just buying them. But if you shop your components right (buy resistors in 100+ packs, etc.), and build a bunch of modules, it will ultimately be slightly cheaper. If you make your own faceplates, it can be a significant savings. If you don't charge for your time, at least. :75:

For me, the satisfaction of doing it myself, and the knowledge I gain while doing it, far outweighs the potential savings. And there's a ton of cool stuff that you simply can't buy pre-made...
User avatar
dude
fuck yeah!
Posts: 10001
Joined: Sun Jul 05, 2009 2:08 pm
Location: northeastohio

Post by dude »

building modulars is totally invalid
User avatar
Dave Kendall
Set The Controls . . .
Posts: 1488
Joined: Thu Jul 16, 2009 7:20 am
Location: Sto Lat Plains, England

Post by Dave Kendall »

+1 on SDIY being cheaper if

* you buy components in bulk
* make your own faceplates (local sheet metal works+home printer)
* write off the time spent on it

Things like passive mults and simple mixers are way cheaper than commercial modules. Other advantages of DIY, more likely to be fixable at home (cheaper again), and tweakable/customisable to your taste (priceless)

Disadvantages; serious time sink, more addictive than crack cocaine, and probably more expensive too.... and, except for the very lucky few, sdiy and girlfriend are an either/or situation....

cheers,
Dave
Want to Buy: EFM Tomcat and other EFM PCBs. Also CGS76, CGS77, CGS96, CGS97, and other old style CGS PCBs
"Everything in moderation, including moderation"
User avatar
negativspace
Manhattan Analog
Posts: 6603
Joined: Tue Apr 13, 2010 2:50 am
Location: Manhattan, KS, USA
Contact:

Post by negativspace »

I find that even with a nice FPE panel and parts bought in moderate-bulk DIY saves you money, if sometimes only a little bit. My last module, for example, was pretty "expensive" for a DIY project. It's a Steiner Synthasystem VCF. The PCB was $40. The 10hp panel was $60. There are 2 SSM2210s in the circuit at $10 each, a $5 rotary switch, I used knobs I had to order from Germany, etc... I do not build my own modules with cash as a concern.

But it still only cost me about $150, start to finish. What's a used Frequensteiner run here on the B/S/T forum, ~$200? The Elby Synthacon is similar enough to compare, it's $175 new @ AH.

With an $80 panel, I've priced my Synthasystem VCO build to about $240. That's just under what a Malekko AO/O or a Z3000 retails for, and really most Euro VCOs go up from there. So on this one I break even at worst, and it's definitely my most expensive build to date.

I think the advantage of being able to design your panel interface to suit your own patching habits or modify your circuits to fit your musical style is the best part of the hobby, though. And the designing and building process itself is a lot of fun. The satisfaction you feel while making music with an instrument you built (vs. bought) is huge. Saving a little money, if you do, is just a bonus.
User avatar
nuketifromorbit
Wiggling with Experience
Posts: 409
Joined: Thu Aug 13, 2009 3:47 pm

Post by nuketifromorbit »

dude wrote:building modulars is totally invalid
I agree I think I'll take up quilting instead.

Also guys I have ready access to machine tools and scrap metal, so I don't think I'll be needing to buy face plates.
User avatar
fluxmonkey
Super Deluxe Wiggler
Posts: 1972
Joined: Sat Oct 18, 2008 10:05 pm
Contact:

Post by fluxmonkey »

i agree w/ most of what's been said. random added thots:

if you're just starting out, there's an initial investment and learning curve to consider. basic tools (basic hand tools, decent soldering iron, cheap VOM) will set you back $100 or so, and you'll probably bollox a few projects one way or another, or buy some incorrect components... so, per module, yr first builds will be more expensive on a per-unit basis.

the longer you stick with it, the better you'll get. 200+ builds later, i can probably build most any module a little cheaper than i could buy... but then, any $$ i'd actually save goes into extras like nicer faceplates, or more modules. i think most DIYers continue for reasons other than saving money.

there's a difference for be between a full built-out module (comparable to commercial in terms of quality and durability), and a quick/dirty utility or one-off. i often breadboard up a gizmo to do something specific, use it for that track, and then break it down. and i'd never buy something simple like a mult panel or attenuator.

personally, i like being able to customize my modules. nobody makes a 5-step sequencer to match a music easel, or an oscillator w/ 16 CVs for fm freaks, but i can DIY something that exactly meets my musical needs, which is sweet.

i also like to think i understand my instrument better because i'm pretty intimate w/ the "how it does it" as well as the "what it does". i think it makes me a better patcher (tho the cat might disagree)...

b
www.fluxmonkey.com

BUILDER FOR HIRE - kits or custom, email me with your needs
User avatar
rico loverde
Super Deluxe Wiggler
Posts: 4031
Joined: Fri Aug 06, 2010 10:40 am
Location: Portland, Oregon

Post by rico loverde »

getting into diy has been a very positive experience for me for a number of reasons. I love to learn, so right off the bat DIY is great. I, much like AndrewF mainly got into it because I wanted a modular and couldnt afford a new system (didnt know of muffs b/s then) and also there were a few modules that I really really wanted that were only DIY. Time wise I dont feel like Im wasting my time because im learning and the feeling of completing a project and having it work is unbeatable. I personally never thought I was capable of doing what I have built. My friends still wonder what happened to me...and def look at me in a diff light now. In the begining I wasted a lot of money on wrong parts and mistakes but again I learned something from each.

one other point is it has given me a hugely different knowledge of synthesis in general.
works for Darkplace Manufacturing
User avatar
ersatzplanet
Synthwerks Design
Posts: 8407
Joined: Fri Mar 06, 2009 1:18 pm
Location: Seattle WA

Post by ersatzplanet »

There are now great resources to make very nice front panels with etched legends and nice holes (like Front Panel Express) but the cost will not always be cheaper than purchased modules. I think the main advantage to DIY is that you can make the module have the features you want, not what somebody else does. Finding and combining schematics is a fun task for me so that is not a great obstacle but it may be for others.
The other angle is to use your DIY skills to modify commercial modules to do what you want. I have thought allot about taking modules from different manufacturers modules by combining them with making a custom front panel, into a few "super modules" that are normalized to do some of the task I commonly patch them up to do. Making the sum smaller than what they would be as separate modules.
On a side note - I once made a quad sequencer for my Obie 4-Voice using the core of the Obie Mini-sequencer. I left off the clock (I clocked it from a TR-808) and quantizer. It was incredibly cheap to make. You can find the schematics on my old Obie database site - http://web.me.com/ersatzplanet/ErsatzPl ... Pages.html
If you have a pile of pots laying around - that is the type of project to do.
-James
-James

James Husted - past major partner in Synthwerks, LLC
I perform solo as Body Falling Downstairs (www.bodyfallingdownstairs.com),
and with Marc Barreca as Young Scientist.
"It takes about a week to learn how to play a synthesizer, but several years to learn how *not* to play it." - Brian Eno
frijitz
Super Deluxe Wiggler
Posts: 1725
Joined: Mon Aug 31, 2009 3:37 pm
Location: NM
Contact:

Post by frijitz »

falafelbiels wrote:If you plan to do CGS in euro, you have to build deep or wide. Most of the PCBs are 6" long and this is 4u territory.
Please don't forget that Elby's Panther series has many of Ken's designs in Euro format (boards were redone).

:grin:

Ian
User avatar
fonik
Super Deluxe Wiggler
Posts: 3361
Joined: Fri Sep 19, 2008 5:54 am

Post by fonik »

tonight i built this module from what i had here at home. i used cardboard for the frontpanel, and sknobs i got as samples... it cost me almost nothing, but 3 hours of soldering (okay, doesn't look nice, but i had fun tonight...).

Image

Image

BTW it worked from the start :tu:

however, i think i will do a metall frontpanel for it soon...
User avatar
andrewF
Super Deluxe Wiggler
Posts: 4260
Joined: Wed Apr 15, 2009 7:36 pm
Location: WA
Contact:

Post by andrewF »

Dave Kendall wrote:.... and, except for the very lucky few, sdiy and girlfriend are an either/or situation....
:hihi: a valid point!
guess i'm lucky :banana:

Perhaps its worth mentioning where diy can lead you.

I was early thirties the 1st time I picked up a soldering iron, didn't know a resistor from a capacitor.
now 12 years later, I'm doing a doctorate on memristor based chaotic circuits.
:hmm: htf did that happen?
User avatar
jbartee
special stage
Posts: 1117
Joined: Sun Sep 26, 2010 11:31 pm

Post by jbartee »

andrewF wrote:
Dave Kendall wrote:.... and, except for the very lucky few, sdiy and girlfriend are an either/or situation....
:hihi: a valid point!
guess i'm lucky :banana:

Perhaps its worth mentioning where diy can lead you.

I was early thirties the 1st time I picked up a soldering iron, didn't know a resistor from a capacitor.
now 12 years later, I'm doing a doctorate on memristor based chaotic circuits.
:hmm: htf did that happen?
This post has single handedly restored my faith in the universe.
Post Reply

Return to “Music Tech DIY”