Ahh cool. You want to build a box with knobs and faders for controlling wavetable synth. I was thinking you wanted to make a synth that created the wavetable out of incoming audio signal. What you want to do is not so complicated as the real time granular thingy
I am not into hardware modding just yet, so Ill leave this to the other guys who offered to help. I have build some patches for wavetables, that are allready on this forum. Doing a search on wavetable will bring up a lot of posts But I was wondering what are you expectations to the wavetable synth you are looking to make? Are you looking for multiwavetable with many waves or just single waves? Do you need fx, etc. ?
Anyway, I have got a bahcelor degree in social education(pedagogy) and this is right up my alley. Interesting project. I have been working on a project which basicly is called "creativity with one finger". The goal is to be creative and be it with ONE FINGER ONLY. SO everyone can do this. The project is especially aimed for kids with muscular dystrophy. They often loose there feasibility over a period of time. And I want to give them nice and interesting things to to do with their lives, while they still have their feasibility. Like modern activities. My view on this is that kids with muscular dystrohpy arte often only introduced to activities that is kind of "outdated". They also want to participated in modern day activities to feel like they are a part of something bigger modern. And I think it also could help some of these kids make friends. Kids with muscular dystrophy often feels isolated. If I could put a few of these kids in a room together with a few Ipads I am sure it would be ground for a lot of creativity but also creating new meaningful friendships.
Anyway, let us know how it comes a long