Greetings guys!

So I'm back, going to work on my X axis which is built on a 2 meter long by 300mm Aluminum I beam. I am waiting on some HTD 5M x 15mm wide belt. I have my mounts for Idler and pulleys to work on. I went with a 12mm shaft (bore) to make sure things are strong. and a Nema 23 3 N.m motor

So here is where I am. What are typical speeds used for the X axis on a large machine like this? This is more non-contact like a plasma, than driving a spindle in Aluminum.

I ask because I'd like to know what tooth count of pulley I should get/make?

Less teeth, I would have more accuracy but less speed. More teeth and I get more speed but lose some torque.

I 3D printed a 30 tooth pulley just to see the size.

What's more typical.

Thanks!