Sonic Potions - Penrose Quantizer DIY Kit

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Comboy
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Sonic Potions - Penrose Quantizer DIY Kit

Post by Comboy » Wed Jan 14, 2015 6:31 am

Hello fellow wigglers!

I hope it is ok to post here.
I recently developed a quantizer with user selectable scales as a DIY kit for the eurorack format.

Image

Notes can be selected with the duocolor LED buttons and it is either free running (no cable plugged into the trigger in jack) or externally triggered (cable attached). Whenever the output changes a trigger is generated.It uses a proper DAC for CV output, so no PWM is used.

More information is available on my website

and full kits are available in my shop

I hope you like it! :razz:

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horstronic
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Post by horstronic » Wed Jan 14, 2015 9:15 am

:yay: :yay: :yay:

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woodster
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Post by woodster » Wed Jan 14, 2015 10:16 am

I think I'll be having me some of that :sb:

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Adminius
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Post by Adminius » Wed Jan 14, 2015 10:30 am

This looks monster, Comboy!

I actually found the Penrose Quantizer on ModularGrid only yesterday and added it to my GearLust Rack.

Any plans to produce this as a completed module 'cause I'm decidedly dodgy at DIY?
While you're at the bar, get the dog another beer!

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Comboy
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Post by Comboy » Wed Jan 14, 2015 10:48 am

No plans for me so far to make a complete module, but I'm sure one of the trusted builders would be happy to build one for you for a good price. Maybe ask andre' from tubeOhm or someone else from this list:

http://forum.sonic-potions.com/discussi ... d-builders

I thought there are quite a few ready made quantizers but very few DIY kits so I went with the kit ;)

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Post by Coconuts » Wed Jan 14, 2015 11:13 am

Will any shops in the U.S. have them?

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Altitude909
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Post by Altitude909 » Wed Jan 14, 2015 12:00 pm

Welcome Julian!

I can build these in the US for anyone that needs one.

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horstronic
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Post by horstronic » Wed Jan 14, 2015 12:23 pm

And I could build these for people in europe :party:

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FetidEye
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Post by FetidEye » Wed Jan 14, 2015 12:54 pm

i just got mine in the mail.. thanks for the nice presents!!

btw: that small bottle with the wooden cap, where did you got it from?
my girlfriend wants to use such bottles for a food / oil project.
Last edited by FetidEye on Wed Jan 14, 2015 2:35 pm, edited 1 time in total.

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bartleby
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Post by bartleby » Wed Jan 14, 2015 1:50 pm

received mine today - including some obscene candy. :D

don't know when i'll find the time to build this - my backlog is long enough. but i think i'll move this one up on the list...

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FetidEye
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Post by FetidEye » Wed Jan 14, 2015 4:49 pm

aaannnd it works!!

Image

fast build, because of the excellent manual.
calibration was fast too, maybe i'll redo it with a scope, but for now a multimeter worked fine.
The buttons are very beautiful!

1 point of attention: it would be very usefull to have an overview of all components at the beginning. (like a BOM)
In that way you can't mistake a 102 cap for a 104 cap because you will know to look out for it. (those text codes are so fucking small it hurts my eyes)

very cool solution for the pcb / panel mounting also!!

:party:

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falafelbiels
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Post by falafelbiels » Wed Jan 14, 2015 5:30 pm

That was quick!

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beeedy
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Post by beeedy » Thu Jan 15, 2015 1:34 am

I would also be willing to build for people in the US if altitude becomes too busy! :help:

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Ucture
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Post by Ucture » Fri Jan 16, 2015 9:38 pm

I just build and tested the Penrose i ordered last week. There's 3 light buttons (G#, A#, B) that does not light but are working. I checked my soldering and it looks like everything is ok. I thought also to update the firmware but couldn't find the audio file to do it, on the site. Does anyone have the same issues? Any solutions or check i can do?

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woodster
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Post by woodster » Sat Jan 17, 2015 6:54 am

Did you make sure to follow instructions which way to put the button pins in ?

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Ucture
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Post by Ucture » Sat Jan 17, 2015 8:20 am

I received an answer from Julian by mail. It's apparently a defect 10 Ohm resistance.

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reodjectz
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Post by reodjectz » Sat Jan 17, 2015 12:06 pm

I like the look of this module. Could one of the people who picked it chime in on the panel quality? Is it hand made (like the befaco ones, I hope not) or nice and cleanly manufactured?

Really love the idea of the trigger out on pitch change, I wish the uscale had that.

If the panels are nice I'll be ordering.

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Post by spoor » Sat Jan 17, 2015 12:43 pm

reodjectz wrote: Is it hand made (like the befaco ones, I hope not)
BTW - latest module I built from them (Even VCO) was very much improved, using aluminium PCB material. But still not as nice as others (grayscale, MI, MTM etc). I understand they're still looking to improve their panels.

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reodjectz
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Post by reodjectz » Sat Jan 17, 2015 12:53 pm

spoor wrote:
reodjectz wrote: Is it hand made (like the befaco ones, I hope not)
BTW - latest module I built from them (Even VCO) was very much improved, using aluminium PCB material. But still not as nice as others (grayscale, MI, MTM etc). I understand they're still looking to improve their panels.
Good to hear- I like their modules, but the panels are a huge turnoff. I did just order the sampling modulator kit... fingers crossed for a nice panel.

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Altitude909
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Post by Altitude909 » Sat Jan 17, 2015 1:18 pm

That looks like a metal photo panel like the MI (it was designed by the same guy)

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Post by euromorcego » Sat Jan 17, 2015 5:06 pm

looks wonderful.

So the selectable scales are not presets but one has to program the scales using the minikeyboard? And I am correct that there is no transpose or similar? Could the mini keys be used as a, well, mini keyboard, when nothing is plugged in? That would be a useful feature (have been looking for something like this).

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Post by tonewheels » Sat Jan 17, 2015 6:33 pm

I got my kit a couple of days ago. Panel is really nice. Seems to be an emerging wiggling practice to give toys with the kit. Nice. A packet of camel balls and a jar to keep your oil (been years since I've come across any oil, mind you).

Since I ordered it, my circumstances/requirements have changed so I'll either trade it or build it and trade it. Cool module though. Mightily impressed.

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Post by Comboy » Sun Jan 18, 2015 5:29 am

FetidEye wrote:btw: that small bottle with the wooden cap, where did you got it from?
my girlfriend wants to use such bottles for a food / oil project.
found them on alibaba ;)
have a look for "Fimo bottle"
Lots of different varieties available.

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Comboy
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Post by Comboy » Sun Jan 18, 2015 5:31 am

reodjectz wrote:I like the look of this module. Could one of the people who picked it chime in on the panel quality? Is it hand made (like the befaco ones, I hope not) or nice and cleanly manufactured?
The panels are quality aluminum panels with sub anodized (is this the right term?)printing.
Similar to the Mutable panels.

Scratch and solvent proof.
I had to get samples from 5 companies until I found one with good quality ;)

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Comboy
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Post by Comboy » Sun Jan 18, 2015 5:38 am

euromorcego wrote:looks wonderful.

So the selectable scales are not presets but one has to program the scales using the minikeyboard?
exactly.
euromorcego wrote: And I am correct that there is no transpose or similar? Could the mini keys be used as a, well, mini keyboard, when nothing is plugged in? That would be a useful feature (have been looking for something like this).

Sorry, no transpose. About the mini keyboard use - I'm afraid there are no free pins on the microcontroller left an the CV in jack has no switch wired up to detect if a jack is plugged in.
The firmware could be changed to act as a small keyboard, but it would not work as a quantizer anymore :(

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