Question : is it possible to change a fader for a rotary pot on a midi controller ?

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Question : is it possible to change a fader for a rotary pot on a midi controller ?
Posted on: 19.12.2012 by Vania Tooma
Hi everybody.
It's my first post here.

First, I must say that I have just discovered DJTT some weeks ago and I am totally crazy about it.

As a dj for 20 years, I want to create my own mixer.

First, I wanted it to be "audio" but now, with your website and Traktor, I believe it can be "midi"

So, I thought that I can modify (to create my first mixer) an existing midi controller, and the question is :

can i replace the classic faders with rotary pots (I use to play on rotary mixers) ?

I believe that there is maybe a trouble with ohms ?

Let me know.

ThxXXX

And keep on making this site so interesting !

Julien
Vania Tooma
10.01.2013
Hi oneapemob !
I just bought a NanoKontrol 2.
Yes it's cheap (45
Vania Tooma
10.01.2013
Hi oneapemob !
I just bought a NanoKontrol 2.
Yes it's cheap (45
Vania Tooma
10.01.2013
Hi oneapemob !
I just bought a NanoKontrol 2.
Yes it's cheap (45
Vania Tooma
10.01.2013
Hi oneapemob !
I just bought a NanoKontrol 2.
Yes it's cheap (45
Vania Tooma
11.01.2013
thxxx for this info, I didnt know that.

Traktor is incredible with all these parameters...

Definitely, Serato should do the same !

I let know about my adventures

Julien

Originally Posted by oneapemob
You'll have the possibility to go around (more or less) the fact that the value gets to 100 (or 127 in midi) before the top by using the mapping options in traktor. Usually the important thing is to have some linear pots (not audio), because of the voltage curve.
Vania Tooma
10.01.2013
Hi oneapemob !
I just bought a NanoKontrol 2.
Yes it's cheap (45
Vania Tooma
20.12.2012
Attachment 14338
Vania Tooma
20.12.2012
Thx for the info,
I will give up the nanoKontrol, and maybe focus more on the Behringer BCR2000.

The Behringer has enough controls for my desire

Let's get lucky, I hope the Behringer is easy to modify...

And no need to replace linear faders...

Originally Posted by boarderbas
Serach the community ! The nanokontrol is VERY hard to use in this way!
Vania Tooma
20.12.2012
Thank you Borderbas for your additional advices.
My idea is to buy for example a Korg NanoKontrol 2 and just use the PCB.
I want to unsolder all the pots and buttons to use everything in a new case (and re-solder everything with cables).
So I can have all the space I need

My base would be a Behringer controller : http://www.behringer.com/EN/Products/BCR2000.aspx

What do you believe about it ?

Julien

Originally Posted by boarderbas
Well....

Assuming the controller in mind uses a regular linear fader (variable resistance) you can swap it for the same value rotary. It can either be 3 or 6 connections, depending if the circuit uses a mono or stereo fader. But there are controllers that use different systems. But that's rare.

Measure the resistance of the fader and buy a similar rotary.

Beware of the space. A lot of faders are very low-profile, so the pcb is relativerly near to the faceplate. That could make it hard to fit a rotary.
Vania Tooma
19.12.2012
Originally Posted by Sample Seven
Yes.
ahahahaha,
still clear !!!

THXXX

Julien
Julius Schoenhofer
19.12.2012
Originally Posted by julienferment
Simple, clear.

So I guess I just have to unsolder the original linear fader and then solder the rotary fader (the two use 3 points ?) ?

Thxxx

Julien
Yes.
Vania Tooma
19.12.2012
Originally Posted by Sample Seven
Yes.
Simple, clear.

So I guess I just have to unsolder the original linear fader and then solder the rotary fader (the two use 3 points ?) ?

Thxxx

Julien
Vania Tooma
19.12.2012
Hi everybody.
It's my first post here.

First, I must say that I have just discovered DJTT some weeks ago and I am totally crazy about it.

As a dj for 20 years, I want to create my own mixer.

First, I wanted it to be "audio" but now, with your website and Traktor, I believe it can be "midi"

So, I thought that I can modify (to create my first mixer) an existing midi controller, and the question is :

can i replace the classic faders with rotary pots (I use to play on rotary mixers) ?

I believe that there is maybe a trouble with ohms ?

Let me know.

ThxXXX

And keep on making this site so interesting !

Julien
Vania Tooma
17.01.2013
Update : I unsoldered the rotary pots of the Nanokontrol 2 -> these are 5K pots and not 10k pots. So everything is fine with my new pots. I let you know as soon as all my pots are soldered.
Actually I soldered one to test, and everything is fine.
Vania Tooma
11.01.2013
thxxx for this info, I didnt know that.

Traktor is incredible with all these parameters...

Definitely, Serato should do the same !

I let know about my adventures

Julien

Originally Posted by oneapemob
You'll have the possibility to go around (more or less) the fact that the value gets to 100 (or 127 in midi) before the top by using the mapping options in traktor. Usually the important thing is to have some linear pots (not audio), because of the voltage curve.
Bertie Metro
10.01.2013
You'll have the possibility to go around (more or less) the fact that the value gets to 100 (or 127 in midi) before the top by using the mapping options in traktor. Usually the important thing is to have some linear pots (not audio), because of the voltage curve.
Vania Tooma
10.01.2013
Hi oneapemob !
I just bought a NanoKontrol 2.
Yes it's cheap (45
Kellie Myrum
24.12.2012
Used BCD200 is same cheap, have more controls, audio interface and same easy
Shay Wyche
25.12.2012
Have a look at buying an M-Audio Session pro, I've used one successfully before and so have many others. If you can get your hands on a second hand one you'd be laughing.


http://www.google.co.uk/products/cat...ed=0CFUQ8wIwAA
Vania Tooma
24.12.2012
hello oneapemob,
thank you for your detailed reply.
You are right, the BCR doesnt have the normal pots I need.
So, I give it up.
Now, I believe the best way for my project would be starting from scratch.
The problem is I am a true newbie (but not stupid), so it will be a long quest.
There are many USB card with Midi. Many people talk about Arduino.
Is it a not-so-difficult way for a newbie to make his own midi USB controller ?
what do you believe about it ?

Regards

Julien
Bertie Metro
20.12.2012
I would suggest against the bcr. Here's why :

The bcr is a great controller, but most of it's controls are encoders, not normal potentiometers, they will react differently, and it might possibly be a pain in the ass. As well as having small solder point too, the same as the nano (more or less).

The nano (mk2) is a good idea, but you will need some soldering (actually desoldering) skills, because it's true that all the components are small. However, bang for the buck wise, it has a lot of controls, potentiometers (10k very common), buttons, and leds. Plus it comes with an editor that can save you time, and keeps the set up (once done) in the nano's memory.
Plus it you f'''k it up, it's a 50 eur. piece of equipement.

check this :

http://community .djranking s.com/showthread.php?t=31295

http://posterous.com/getfile/files.p...scaled.500.jpg

http://cmpercussion.blogspot.com.es/...nokontrol.html

http://img840.imageshack.us/img840/9...6121005531.jpg

http://3.bp.blogspot.com/-rFvELThdvz...-27-52-163.jpg

The hardest part in all this is : the case, the case design, and sourcing good quality components.
Vania Tooma
20.12.2012
Attachment 14338
Vania Tooma
20.12.2012
Thx for the info,
I will give up the nanoKontrol, and maybe focus more on the Behringer BCR2000.

The Behringer has enough controls for my desire

Let's get lucky, I hope the Behringer is easy to modify...

And no need to replace linear faders...

Originally Posted by boarderbas
Serach the community ! The nanokontrol is VERY hard to use in this way!
Evia Nitch
20.12.2012
Serach the community ! The nanokontrol is VERY hard to use in this way!
Vania Tooma
20.12.2012
Thank you Borderbas for your additional advices.
My idea is to buy for example a Korg NanoKontrol 2 and just use the PCB.
I want to unsolder all the pots and buttons to use everything in a new case (and re-solder everything with cables).
So I can have all the space I need

My base would be a Behringer controller : http://www.behringer.com/EN/Products/BCR2000.aspx

What do you believe about it ?

Julien

Originally Posted by boarderbas
Well....

Assuming the controller in mind uses a regular linear fader (variable resistance) you can swap it for the same value rotary. It can either be 3 or 6 connections, depending if the circuit uses a mono or stereo fader. But there are controllers that use different systems. But that's rare.

Measure the resistance of the fader and buy a similar rotary.

Beware of the space. A lot of faders are very low-profile, so the pcb is relativerly near to the faceplate. That could make it hard to fit a rotary.
Evia Nitch
20.12.2012
Well....

Assuming the controller in mind uses a regular linear fader (variable resistance) you can swap it for the same value rotary. It can either be 3 or 6 connections, depending if the circuit uses a mono or stereo fader. But there are controllers that use different systems. But that's rare.

Measure the resistance of the fader and buy a similar rotary.

Beware of the space. A lot of faders are very low-profile, so the pcb is relativerly near to the faceplate. That could make it hard to fit a rotary.
Vania Tooma
19.12.2012
Originally Posted by Sample Seven
Yes.
ahahahaha,
still clear !!!

THXXX

Julien
Julius Schoenhofer
19.12.2012
Originally Posted by julienferment
Simple, clear.

So I guess I just have to unsolder the original linear fader and then solder the rotary fader (the two use 3 points ?) ?

Thxxx

Julien
Yes.
Vania Tooma
19.12.2012
Originally Posted by Sample Seven
Yes.
Simple, clear.

So I guess I just have to unsolder the original linear fader and then solder the rotary fader (the two use 3 points ?) ?

Thxxx

Julien
Julius Schoenhofer
19.12.2012
Yes.

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