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 Forum index » DIY Hardware and Software
Jim Patchell's Control Voltage Splitter
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diablojoy



Joined: Sep 07, 2008
Posts: 809
Location: melbourne australia
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PostPosted: Thu Jun 18, 2015 2:32 am    Post subject: Reply with quote  Mark this post and the followings unread

Oh ok
just gotta finish playing with FM ogre's
euro or multi format ?

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elmegil



Joined: Mar 20, 2012
Posts: 2167
Location: Chicago
Audio files: 16

PostPosted: Thu Jun 18, 2015 6:31 am    Post subject: Reply with quote  Mark this post and the followings unread

Something capable of multi-format would be nice, I don't have any Euro space left Smile
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PHOBoS



Joined: Jan 14, 2010
Posts: 5391
Location: Moon Base
Audio files: 699

PostPosted: Thu Dec 24, 2015 6:29 pm    Post subject: WaveWiper PCBs Reply with quote  Mark this post and the followings unread

I installed eagle and started on a board layout myself as a first test Razz
I'm making it of the original design with some small changes, so not the
one diablojoy designed with the extra attenuverters (I finally know what
those things do now Embarassed ).

The design has 2 boards: one has the actual circuit, and the other one is
for the 3,5mm sockets and pot(s) in case you want to use it as a euro module.
It's connected to the other PCB with printheaders so no wiring is required Very Happy
If everything works out as planned I hope to have the first boards ready
somewhere in february. The first run will be 10 boards to see if they work
and because this is the first time I'm doing this. So I'm not sure yet if the
text will be readable, it might be a bit too small. I can probably do a print
on paper first though.

Here's a 3D render of what I have at the moment that doesn't seem to show
the gap between the snap points, which is another thing that I don't know
yet if it wil work correct. The render also uses a different font so the text
looks different and does not fit in some places now.

I think I'll move the wipe pot down so it's located between the CV and In A
sockets. And then I'll add another pot, where the wipe pot is placed now,
which will function as an attenuator for the CV signal.

done


WaveWiper PCB 3D.png
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WaveWiper PCB 3D render
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WaveWiper PCB 3D.png



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Last edited by PHOBoS on Thu Dec 24, 2015 11:32 pm; edited 1 time in total
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elmegil



Joined: Mar 20, 2012
Posts: 2167
Location: Chicago
Audio files: 16

PostPosted: Thu Dec 24, 2015 9:38 pm    Post subject: Reply with quote  Mark this post and the followings unread

I'm exhausted with a sick cat, that's my excuse and I'm sticking to it.
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piedwagtail



Joined: Apr 15, 2006
Posts: 297
Location: shoreditch
Audio files: 3

PostPosted: Fri Dec 25, 2015 1:05 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hey, PHOBoS!
It's easy enough right?

Some manufacturer's can be a bit sniffy about board breaks.

Merry etc!

R
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PHOBoS



Joined: Jan 14, 2010
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Location: Moon Base
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PostPosted: Sat Dec 26, 2015 3:04 pm    Post subject: Reply with quote  Mark this post and the followings unread

I thought eagle would be a bit more difficult, but after watching some tutorial videos and designing along
I figured most of it out pretty fast. It's not the most intuitive software to use though. And it takes some
time to find all the right components in the library. But once I know which one I like I'll probably just
create a custom library and I could always draw parts myself.

And yeah those breaks is something I don't know about how well it will work. If it does then I can send it
in as 1 PCB to safe on costs, but there is also a panneling option so I could use that if it doesn't work.
Just means the price will be a bit higher.

I also figured out I have to use vector for text so changed them all and made the text a bit larger too,
hope it will be readable.

santa


WW.png
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current WaveWiper PCB design (silkscreen & pads)
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http://phobos.000space.com/
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piedwagtail



Joined: Apr 15, 2006
Posts: 297
Location: shoreditch
Audio files: 3

PostPosted: Sat Dec 26, 2015 5:52 pm    Post subject: Reply with quote  Mark this post and the followings unread

http://www.pcbway.com/capabilities.html

http://smart-prototyping.com/PCB-Prototyping.html[/url]

http://support.iteadstudio.com/support/solutions/articles/1000160585-pcb-panelization-rules

some rules from some fabricators.

OSHpark and Seeed also of course.

I could no doubt have saved some money for multiple panels, but my workflow is so haphazard I'd rather get some boards and build/test before moving on. Otherwise I'll forget little details and reasons for doing things.

Not done any vector import but will if I start doing 3U or 4U frontpanels in Diptrace Free. Unfortunately Eagle Light has a 100mm size restriction (whereas Diptrace has a <300 pin restriction) that stops people from doing frontpanels.

Last thought: I bump every through hole solder pad up to 2mm diameter from the 1.5mm standard and ICs up to 3x1.5mm. In my opinion many solder pads are far too small from certain diy sellers.

R
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PHOBoS



Joined: Jan 14, 2010
Posts: 5391
Location: Moon Base
Audio files: 699

PostPosted: Sat Dec 26, 2015 7:04 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thanks! I can use all the info I can get. Very Happy
I agree on the pads, I've seen some very small ones so I did try to choose components from the library with larger
pads then most of them have. Don't know how they will turn out though and the current capacitors still have small pads.

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"My perf, it's full of holes!"
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SoundCloud BandCamp MixCloud Stickney Synthyards Captain Collider Twitch YouTube
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PHOBoS



Joined: Jan 14, 2010
Posts: 5391
Location: Moon Base
Audio files: 699

PostPosted: Wed Dec 30, 2015 5:06 pm    Post subject: Reply with quote  Mark this post and the followings unread

I made some improvements to the circuit and started a new dedicated WaveWiper thread here at the Stickney Synthyards. Cool
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