DIY ribbon controller

[Mr_-G-]

Hi. yes, there are various lengths, search for "thinpot". RS components has some of those, you need the 10KOhm ones (which corresponds to the potentiometer of the EV5 contol pedals)
http://uk.rs-online.com/web/c/?searchTe ... ra=oss&r=t
The one I bought is about 20 cm in length, maybe a bit shorter is better.

When you have both connected and you assigned the morph to the whole range of a parameter, you can increase the parameter with the pedal, let's say half the way and the ribbon can control it up and down from that position. But when the pedal is all up (parameter at the initial position), you can't reach the opposite end of the parameter with the ribbon alone (as the resistances are in parallel).

What is the issue with the G1?

[Mr. Marko]

If the two are wired in parallel AFTER the capacitor, would the lag apply to Both the CV pedal and the ribbon?

If after the ribbon only then parallel just the ribbon?

Found the parts on www.mouser.com

No issue wi the G1 other than NO built in controller, which makes this a perfect fit for several of my Nords.

Thanks for the information..feeling a project coming on!

[Mr_-G-]

In the end I did not leave the capacitor in, so I can't test right now, but I assume that it would affect both pedal and ribbon.
Not sure what you mean "in parallel after the capacitor".
I made sure to short the capacitor before connecting it to the synth (just touching the 2 connectors with a piece of metal) because they can keep some charge and I did not want to experiment if that could affect the "red one". (I do not think it would, surely this depends on the capacitor used, but you never can be too careful).
The capacitor acts as a LPF,, smooths the transients in the signal.
I guess that for the pedal it would not make a lot of difference because one moves the pedal (relatively) slowly, but with the ribbon you can press in the middle of it and release and that is a pulse.
I'll reiterate my previous comment: do not get a slim pot which is too long (about 10cm is ideal).
Let us know how you get on.

[mon8169]

Quite an old thread, but I had to share that I just did your project (in 10 minutes !!)!!!!

Ribbon Controller.jpg (1.92 MiB) Viewed 3485 times

I used magnetic rubber sheet to fix the ribbon to my NS. So far it works great!!

It's a pitty it can just control the tone and the filter frequency in the Nord stage Synth.



Ramon

[Marlowes]

Really awesome!



/Michael in Scania

[Quai34]

Not sure I understand the use of the ribbon instead of the pedal? The pedal lets you keep your two hands playing?

[Quai34]

Yes, but the control can be a part of your playing, just like the Mod Wheel or Pitch Bend.

And, oposed to a Pedal, with the ribbon you can jump between two values or even do some taping.

[Johannes]

This is cool! How do you connect it? Any chance you could share what parts you used and how to connect it?
Looks really cool and want to do it!!!

Quite an old thread, but I had to share that I just did your project (in 10 minutes !!)!!!!

Ribbon Controller.jpg

I used magnetic rubber sheet to fix the ribbon to my NS. So far it works great!!

It's a pitty it can just control the tone and the filter frequency in the Nord stage Synth.



Ramon

[maxpiano]

Hey Johannes,

it is all explained by Mr_G in the first page of the thread, the ribbon is a 10K resistor that you can just connect to the CtrlPedal input. A nice idea actually, cheap and easy to do.

I am not OK though with using it in parallel with an expression pedal, as discussed earlier in the thread, because of the behaviour of 2 resistors in parallel (if they have the same value, the total resistance halves and so it may overload the NS2 input + the variation is governed by the non linear relationship 1/Rpar = 1/R1 + 1/R2)

[Johannes]

True thanks, it's all there. Nice diy job for the holidays! Thanks!