Help please. Dip switches and mach 3 settings

[Neale]

P.S.
Neale , I have no clue how you can reach 4500 mm per min, as mine stalls at 3400-3500. How much does the gantry weigh? Could you please post a photo.

Andrei, take a look at this thread. I have described my machine there, so start with that and ask questions if there is anything else that you would like to know. Quick answer to your question is about 40Kg, I think, but the mass of the gantry is not that important to speed but it does affect maximum acceleration (and deceleration).

I spent a lot of time aligning the ballscrews and the linear rails.