Boss DR-55 Rimshot cloned

creekree · Last edited by creekree on Tue Jun 30, 2009 1:44 am; edited 4 times in total

EDIT: It was pointed out that the PCB layout in the previous version had an error. All files have been updated accordingly. I tested the layout below and it works just fine!
If you use the previous version you'll get a working rimshot, however, it will not sound as nice as this one does...
Sorry for the inconvenience Embarassed

Hi all,

I am slowly working on my drum machine, a Midibox MB808 sequencer with various analog voices.
Last night I finished a clone of the Boss DR-55 Rimshot and I thought that some of you might be interested.

See the attached pdf for details.

Note that there is no volume control as -in my case- a separate mixer will take care of that. Also there is no accent - I simply feed the signal into the DR110 accent circuitry that already is in my drummachine Wink

DR-55 rimshot clone.pdf

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corrected version

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DR-55 rimshot clone.pdf

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dr 55 clone rimshot.mp3

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new sample - sweeping "Tune"

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dr 55 clone rimshot.mp3

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Sebo · Joined: Apr 27, 2007 Posts: 517 Location: Argentina

Thank you!!!

ericcoleridge · Joined: Jan 16, 2007 Posts: 883 Location: NYC

Thanks for this, I wasn;t able to open the file though. I really like the DR-55; was used all over the first New Order record, Movement, and probably on Procession and Everything's Gone Green singles. Will you be making other 55 clones?

creekree · Posted: Wed Jun 17, 2009 5:24 am Post subject:

adambee7 · Joined: Apr 04, 2009 Posts: 420 Location: united kingdom

Its adobe reader. I've had problems now and in the past. Updating might help but if you have done it in illustrator it could be that which needs updating.

toryjames · Joined: Mar 28, 2009 Posts: 2 Location: California

Thanks for posting this. Should R40 be connected directly to Q6? The schematic looks a bit different from your PCB. On your version it goes through R41.

creekree · Posted: Wed Jun 17, 2009 10:03 am Post subject:

Holy crap, you're right!

I mixed up some drafts when making the pdf.
The corrected vesion has been uploaded now.

Thanks for pointing this out!!

Funky40 · Posted: Thu Jun 18, 2009 9:25 am Post subject:

creekree · Posted: Thu Jun 18, 2009 11:01 am Post subject:

yeah i know... i uploaded a hastily corrected version, but then i realised that the file was missing something, so i took it down again.

i just didnt have the time to work on it yet... soon, though. maybe tonight.
first i have to meet with some friends - we're having a generator powered drum n bass outdoor rave saturday night, so there are more pressing matters i have to attend to right now Wink

(if you are near münster, germany, make sure to drop by - it's under the bridge at umgehungsstrasse / agravis in the industrial area behind the cineplex. BYO booze)

Last edit from me in this thread, at least I hope so: My D&B rave was a huge success, thanks for asking Wink

The rimshot as it is shown now is working and true to the original. Have fun! Boy, next time I'll be more careful and triple-check everything, I promise...

creekree · Posted: Tue Jun 30, 2009 1:58 am Post subject:

(bumping this thread to make people who downloaded the previous version aware of the corrected one)

mono-poly · Posted: Tue Jun 30, 2009 4:29 am Post subject:

Thx for doing this!

LektroiD · Posted: Wed Jul 01, 2009 9:52 am Post subject:

Since I haven't got the necessary etching gear, I might stripboard this one. Thanks! Smile

PS, where would a decay pot go, if possible?

LektroiD · Posted: Mon Jul 13, 2009 6:54 pm Post subject:

Ok, I've built this, but it doesn't seem to work. Maybe because I don't have a trigger source? So far I have tried shorting the trigger to ground, applying voltage to the trigger, sending a gate signal (I hear a feint click with note off signal - but nothing like the example in the MP3).

What exactly is a trigger signal? How many volts, and what is the duration?

Maybe someone could look over my stripboard layout and see if they can spot any obvious mistakes (forgetting D2 which should read D4). I did substitute C33 (0.0027) for a 0.0022, but I don't think that would make any major difference?

DR55_rimStripboard.jpg

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DGTom · Posted: Mon Jul 13, 2009 7:38 pm Post subject:

Whenever I'm in doubt, I check out CGS! Very Happy

http://www.cgs.synth.net/modules/index.html#cgs24

very quick to bb, once you hear the differance between gate & trigger it will make more sense, at least it did for me.

LektroiD · Posted: Tue Jul 14, 2009 3:07 pm Post subject:

Well it does indeed work!

Thanks for the CGS link, looks like a handy website!

DGTom · Posted: Tue Jul 14, 2009 10:05 pm Post subject:

Cool! Thanks for posting your stripboard layout as well, I'm going to put one together & see how it goes in my Lunetta Very Happy

LektroiD · Posted: Wed Jul 15, 2009 7:09 pm Post subject:

Here it is wired to my (broken) DR110

http://www.youtube.com/watch?v=4H0fAgsQgTM&fmt=18

DR55-3.jpg

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Luka · Joined: Jun 29, 2007 Posts: 996 Location: Melb.

sounds great!

creatorlars · Posted: Thu Jul 16, 2009 8:10 am Post subject:

Awesome! I added a link to this thread from the modular drum machine database: http://www.lzxindustries.com/drum