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 Forum index » DIY Hardware and Software
Building The Appendage. Share your Experiences
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thebot



Joined: Mar 07, 2012
Posts: 13
Location: Edinburgh, Scotland

PostPosted: Wed May 02, 2012 11:10 pm    Post subject: Reply with quote  Mark this post and the followings unread

Does anyone have an fpd file for a MOTM style panel for this they could share?

Cheers!
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wmonk



Joined: Sep 15, 2008
Posts: 485
Location: Enschede, the Netherlands
Audio files: 13

PostPosted: Thu May 03, 2012 12:59 am    Post subject: Reply with quote  Mark this post and the followings unread

No FPD file, but you could use my design. All MOTM spacing on this one, except that I moved the switches and the ribbon socket in line with the knobs.
Posted Image, might have been reduced in size. Click Image to view fullscreen.
Click for bigger picture.
It's not totally finished, need the switches.

Cheers,
Woody

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Satindas



Joined: Mar 26, 2011
Posts: 39
Location: uk

PostPosted: Sun May 06, 2012 11:06 am    Post subject: Reply with quote  Mark this post and the followings unread

I'm at the calibration stage and it looks like I've got problems. Current mode adjustment and pressure comparator adjustment went fine; Gate led lights and goes out as it should but I've hit a wall with the Voltage mode range adjustment.... VR2 adjusts R117 to -4.75V no prob, VR3 adjusts R28 to 0.6V no prob.. TP1 however reads nothing where ever I press on the ribbon. I've tested the ribbon and it seems to be fine. Something ain't right and I'd appreciate any help. Cheers
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unterbit



Joined: Dec 08, 2008
Posts: 30
Location: Russia.St Petersburg

PostPosted: Sun May 06, 2012 6:42 pm    Post subject: Reply with quote  Mark this post and the followings unread

Lets drop a few more incense to burner for care our honorable seigniors,overland and overseas!!!
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Satindas



Joined: Mar 26, 2011
Posts: 39
Location: uk

PostPosted: Mon May 07, 2012 6:30 am    Post subject: Reply with quote  Mark this post and the followings unread

Satindas wrote:
I'm at the calibration stage and it looks like I've got problems. Current mode adjustment and pressure comparator adjustment went fine; Gate led lights and goes out as it should but I've hit a wall with the Voltage mode range adjustment.... VR2 adjusts R117 to -4.75V no prob, VR3 adjusts R28 to 0.6V no prob.. TP1 however reads nothing where ever I press on the ribbon. I've tested the ribbon and it seems to be fine. Something ain't right and I'd appreciate any help. Cheers


Nevermind, I have the Input (Sample/Ribbon) Switch labelled arse about face!
All done now:) calibrated and sliding about like John Curry on aceed
Pics when I finish the ribbon board!
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marvkaye



Joined: Mar 14, 2011
Posts: 225
Location: Fla

PostPosted: Mon May 07, 2012 9:41 am    Post subject: Reply with quote  Mark this post and the followings unread

I just about finished populating my board yesterday, what a project!!! Consumed most of the day. I'm missing one trimmer and one diode to get the PCB part completed. Can't wait to move on to the next phase. Cool stuff....

<marv>
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Satindas



Joined: Mar 26, 2011
Posts: 39
Location: uk

PostPosted: Tue May 08, 2012 7:17 am    Post subject: Slide not holding Reply with quote  Mark this post and the followings unread

First off.. a huge thanks to Bill and Scott for an awesome piece of kit ! This thing rocks and as my final DIY project for the foreseeable future it really is the icing on the cake and everything seems to be good except for two (hopefully) minor problems. No,1, the slide voltage is not holding ie. with only the slide amount turned up, when I release pressure after a slide the voltage drops to 0V. I was suspicious the fault may be one of the LF398s but after swapping the relevant ones out the fault persists. Secondly, and this one shouldn't be too difficult to trace; the Course Offset pot currently has no effect.

I'm gonna crack on and get the course offset sussed if I can but any ideas about the Slide not holding would be most appreciated cos I honestly don't know where to look for faults Wink

Cheers
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Satindas



Joined: Mar 26, 2011
Posts: 39
Location: uk

PostPosted: Wed May 09, 2012 1:44 pm    Post subject: Pics of my Appendage (XXX rated !) Reply with quote  Mark this post and the followings unread

Ok so here's the "finished" article.
I got the course offset sorted no problem but I'm having trouble trcing the fault with the slide voltage not holding; again, any help or advice on this would be deserving of a pint or two of your favourite ale ! Many thanks would also be offered Wink
Posted Image, might have been reduced in size. Click Image to view fullscreen.Posted Image, might have been reduced in size. Click Image to view fullscreen.Posted Image, might have been reduced in size. Click Image to view fullscreen.

Cheers
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Benjamin AM



Joined: Nov 04, 2010
Posts: 57
Location: Boise

PostPosted: Tue Dec 11, 2012 11:13 am    Post subject: Reply with quote  Mark this post and the followings unread

Hey I finally got around to building this thing. What an amazing controller! Great design and wonderful documentation. I've only been playing with it for a few days and am completely in love with the performance. It's a perfect tool someone who is looking for linear control, or at least it is for me. I want to thank Scott and Bill for making this thing come to life and making it so damn easy to construct.
There's this interview with Bob Moog(soon before he died) somewhere on the net in which he was asked what recent technological achievements with musical instruments interested him. He responded that he enjoyed some of the new and innovative controllers that were being created. Although I cannot speak for the man(the legend), I would say that the Appendage lives up to this level. Albeit an old idea ,the ribbon controller has been recreated. The Appendage offers complete flexibility, expression, and ease of use. I have been wanting controller like this for years, thank you.
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emdot_ambient



Joined: Nov 22, 2009
Posts: 669
Location: Frederick, MD

PostPosted: Thu Dec 13, 2012 3:39 pm    Post subject: Re: Pics of my Appendage (XXX rated !) Reply with quote  Mark this post and the followings unread

Satindas wrote:
Ok so here's the "finished" article.

Looks awesome! Do you have an .fpd you can share of that build?

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wmonk



Joined: Sep 15, 2008
Posts: 485
Location: Enschede, the Netherlands
Audio files: 13

PostPosted: Mon Jan 21, 2013 5:55 pm    Post subject: Reply with quote  Mark this post and the followings unread

Can I replace the 1N457 with another diode?
I've a hard time finding this diode, unless I buy at Mouser or Farnell, but I'm not near ordering a huge pile of components. Smile

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Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4748
Location: Nambucca Heads, Australia
Audio files: 51
G2 patch files: 1

PostPosted: Wed Jan 30, 2013 12:49 am    Post subject: Re: Pics of my Appendage (XXX rated !) Reply with quote  Mark this post and the followings unread

Satindas wrote:
Ok so here's the "finished" article.
I got the course offset sorted no problem but I'm having trouble trcing the fault with the slide voltage not holding;


I don't mean to be pedantic, but everyone should remember that it's actually a coarse offset control, not a course offset control.

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The Peasant



Joined: Nov 13, 2009
Posts: 90
Location: Sunny Alberta
Audio files: 1

PostPosted: Mon Feb 18, 2013 5:56 pm    Post subject: Reply with quote  Mark this post and the followings unread

I am currently building a large synthesizer controller system which will include an appendage module. There will be a number of features integrated into the appendage design, such as a quantizer and several CV processing systems. Details can be found here:

http://www.electronicpeasant.com/projects/synthbend/synthbend.html

Take care,
Doug

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The Peasant



Joined: Nov 13, 2009
Posts: 90
Location: Sunny Alberta
Audio files: 1

PostPosted: Thu Feb 28, 2013 9:43 am    Post subject: Reply with quote  Mark this post and the followings unread

So what has everybody been doing with their softpots as far as protection goes? Are you using them bare with no covering at all? Or are you using some sort of plastic sheeting or other protective layer over top? Maybe something like the plastic protectors used on touch displays like on phones and computer tablets?

I'm wondering if I should bother with this or not.

Take care,
Doug

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KnobHell



Joined: Jan 28, 2012
Posts: 58
Location: SLC

PostPosted: Sun Mar 03, 2013 8:16 pm    Post subject: Reply with quote  Mark this post and the followings unread

Has any one used the kurzweil ribon with the appendage?
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tojpeters



Joined: Feb 04, 2013
Posts: 22
Location: cali (far north)

PostPosted: Fri Apr 12, 2013 5:31 pm    Post subject: ribbon protection Reply with quote  Mark this post and the followings unread

I saw special tape in the Mc Master-Carr catalog for this purpose. I copied this from the catalog. "Super Wear-Resistant Slippery Tape
Often referred to as Rulon or bearing tape, this self-lubricating PTFE tape brings you more abrasion and wear resistance than regular PTFE tape. Use on bearing liners, chutes, and guide rails, and for applications requiring high temperatures and chemical resistance.

Tape is 0.010" thick (0.008" film with 0.002" silicone adhesive). Temperature range is -100° to 500° F. Color is red.
5-yd. Rolls
18-yd. Rolls
Wd. Roll Roll
1/2" 7800A11 $22.20 7800A21 $58.43
1" 7800A12 44.41 7800A22 116.86
2" 7800A14 88.84 7800A24 233.78
Ultra Wear-Resistant Slippery Tape
When you need excellent wear and friction properties, plus insulation and good chemical resistance, this PEEK-backed tape does the job. Use it for sliding bearing surfaces, abrasion-resistant wire wraps, and high-heat applications, as well as on hard surfaces such as steel, ceramic, and glass. Comes with a liner. Color is tan.

General purpose tape resists high humidity and chemicals. It has 0.002" thick acrylic adhesive and a temperature range of -40° to 300° F.

Clean release tape leaves behind less adhesive residue than General-Purpose tape. It has 0.002" thick silicone adhesive and a temperature range of -40° to 400° F.
General
Purpose
Clean Release

Wd. Lg.,
ft. Thick. Roll Roll
1" 9 0.004" 7263A21 $15.02 7263A81 $16.04
Catalog Page|Bookmark
Ultra Wear-Resistant Slippery Tape General Purpose, .004" Thk, 1" W X 9' Length
1 roll was added to your order 02/23/13.
Rolls
In stock
1" 9 0.007" 7263A22 25.03 7263A82 26.74
1" 9 0.012" 7263A23 38.80 7263A83 41.45
2" 1 0.004" 7263A61 4.49 7263A91 4.72
2" 1 0.007" 7263A62 7.49 7263A92 7.86
2"
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