CNC Design and advice

[irving2008]

rather than use M10 or M12 threaded rod, use TR12x3 trapezoidal. its not much more expensive and will give you 2.5x performance as M12 threaded is only a 1.25mm pitch. Still think the Z travel too much..

What are you proposing for the table to run on? and how bigs the table?

[Jonathan]

rather than use M10 or M12 threaded rod, use TR12x3 trapezoidal. its not much more expensive and will give you 2.5x performance as M12 threaded is only a 1.25mm pitch. Still think the Z travel too much..

M12 is 1.75mm pitch...still I agree that's too small if you're not using pulleys to compensate.

Agreed on the Z travel being too much. Maybe you could make just the Z axis using aluminium plate? It wouldn't cost too much more....What do you need to make with 150mm of travel.

This reminds me of everyone trying to persuade me that 400mm is too much travel on my Z-axis! But I'm using 20mm aluminium plate and supported rails now so it should be ok....