DM2 Rotary Controllers / Scratch rings

[vandiesel]

Hi Folks

This is more of a call out for assistance from you guys who have modded, or know about the internals working of the DM2.

I wonder if someone could tell me please what sort of control the scratch wheel is? How it works, and sends data to the PC.
I would imagine (and hope) that it would be either a rotary controller or optical arrangement like in a computer mouse.

I have a DM2 arriving with me soon, and I plan on a little project - But it would be useful to know more about how the scratch/positioning wheels work before I take on anything ambitious.

Thanks
Chris

[azelis]

While I can't tell you how it sends data, I can tell you the scratch rings work on optical encoders, like a mouse wheel. Although I see how long ago you posted, seeing as no one answered and I just took mine apart to check for myself, there you go.