Quote Originally Posted by Ioannis View Post

Now about the sensor, why that bothers you?

If it works, leave it. I suppose it contributes to the initial position of the paper/pcb, right?

Ioannis
At this early stage, I'm not even sure why it bothers me!

I know it's certainly appears to be a hassle for a lot of diy 'direct to pcb' printer conversions.....it's my understanding that it's only role is to find the leading edge of the paper - but the end goal here is near perfect repeatability & 'registration' - not sure how achievable that will be with a system that use friction rollers & an optical edge finder.

....but like I say, it'll become clearer in head the best strategy for me to pursue over the coming days.