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DIY Stompboxes => Building your own stompbox => Topic started by: rbarone on April 21, 2016, 07:02:42 PM

Title: Is there a DIY "Nano Big Muff Pi"?
Post by: rbarone on April 21, 2016, 07:02:42 PM
Title really says it all...  Nano Big Muff Pi -  Noobie wondering if such a project exists.  Thank You All.
Title: Re: Is there a DIY "Nano Big Muff Pi"?
Post by: stonerbox on April 21, 2016, 07:35:37 PM
Just pick a layout/model you fancy, order the components in SMD and build it.  :icon_biggrin: However EH are known for components changes in their Big Muff builds and I am afraid the Nano is not that well documented, at the time being.
Title: Re: Is there a DIY "Nano Big Muff Pi"?
Post by: aion on April 21, 2016, 09:23:51 PM
This will get you there:

https://aionelectronics.com/project/halo-ehx-big-muff-fuzz-pcb/

Same size enclosure, same knob layout, and you can build any BMP variant you want with it. Pretty good newbie project compared to some other circuits.

If you're trying to save money, I doubt you could do it for less than the cost of a real Nano - but if you're doing it for the experience and the thrill of having something customized, you're in the right spot!
Title: Re: Is there a DIY "Nano Big Muff Pi"?
Post by: Ground Control on April 22, 2016, 12:40:02 AM
Even smaller than a Nano...

http://buildyourownclone.com/collections/fuzz/products/lil-beaver-nyc-kit
Title: Re: Is there a DIY "Nano Big Muff Pi"?
Post by: JustinFun on April 22, 2016, 07:17:32 AM
My smd layout is pretty tiny - 5.25cm by 2.25cm. If you use board mounted pots it sits quite happily vertically in an enclosure.

(https://lh6.googleusercontent.com/-7F3DhG4P7rI/VxoH89i53mI/AAAAAAAABXw/oEGIDCds_b0f5J8WX_pE9tfFezHpmDjwQCL0B/w701-h301-no/smdbigmuffv2.png)

You need the .diy file to get the component values really as it's so packed in - and also for the solder mask, hopefully this link will work:

https://drive.google.com/open?id=0B8kEUJAyrC36aC1nbUdxa0d1WXM

I've built a couple of these so it's verified by me.
Title: Re: Is there a DIY "Nano Big Muff Pi"?
Post by: JustinFun on April 22, 2016, 08:57:06 AM
Just realised that I made a later revised version to use smd transistors as well - this is the version I have actually used and verified. The layout pic is a bit more user-friendly as well.

(https://lh5.googleusercontent.com/-dF9Bf6Y4XH8/Vxod22fWflI/AAAAAAAABYc/dQR10CBTB3AA9c62NhN2psGTloykipi_ACL0B/w320-h240-no/photo.JPG)

(https://lh6.googleusercontent.com/-qea4-aS8cFw/Vxod5LcD91I/AAAAAAAABYg/CKcd6YuueTs0Gp54QAqOv4PcxASQwYmcgCL0B/w833-h396-no/gnatschufflayout.png)

etch file here:
https://drive.google.com/open?id=1E8OkF5Wkglrr5Rhyrl0J1Q4vwtIeMuV_Wo3C116T5UVIzA-rpHOE-9KyzsZNfO75EqvVyC2GIeTG0y8a (https://drive.google.com/open?id=1E8OkF5Wkglrr5Rhyrl0J1Q4vwtIeMuV_Wo3C116T5UVIzA-rpHOE-9KyzsZNfO75EqvVyC2GIeTG0y8a)
Title: Re: Is there a DIY "Nano Big Muff Pi"?
Post by: 287m on April 22, 2016, 09:02:28 AM
if just for 1590A-ish Big Muff Pi
the layout below has designed to fit in 1590A with 9mm onboard pots, led onboard, and BC550 pinout
can build with big caps (4 hole) too, for greenies fans  :icon_mrgreen:
(https://4.bp.blogspot.com/-m0StBs-9YKQ/Vxod8EKRwKI/AAAAAAAAAPg/OQ2jnIfyt40zS4HcfSjd2ZZ1-aJiqwgiQCLcB/s640/bmp.png)
easy convert to perf, 13x21 , just one jumper (R6x) or you can eliminate that with looong R6  :icon_twisted:

====
Justinfun : awesome! like your style!
Title: Re: Is there a DIY "Nano Big Muff Pi"?
Post by: LiLFX on April 22, 2016, 10:14:48 AM
I have a one-knob Big Muff using 0805 resistors/caps and SOT-23 semiconductors.
Title: Re: Is there a DIY "Nano Big Muff Pi"?
Post by: midwayfair on April 22, 2016, 11:47:05 AM
The BMP will fit on perfboard with through-hole components in a 1590A. A 1590B is hardly unusual.

Madbean's Mudbunny is a pretty much flawless layout of the circuit designed for a 1590B. http://www.madbeanpedals.com/projects/
Title: Re: Is there a DIY "Nano Big Muff Pi"?
Post by: Les Paul Lover on April 24, 2016, 03:55:44 PM
I've built the fuzz dog pedal part BMP circuit in 1590B. Whilst I have one 1590A pedal, I don't plan on building anymore - they're aren't stable enough when stomped. They easily topple sideways, I don't really understand the nano craze.

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