Aluminium profile cnc build

[njhussey]

Hi and welcome to the forum!!

for the size of machine you're looking to build then twin ballscrews are a must, at 1000mm wide cutting (at least 1300mm wide gantry) you'll get racking when cutting off centre with just one central ballscrew. For a 1500mm cutting area you'll need to look at the size of ballscrew you need to use as at this length you're right on the edge of ballscrew whip when cutting fast with 1610 ballscrews (what most people use as they give you the speed you need for plastics and wood) so will probably need to go up to 2010 (20mm diameter) ballscrews which will most probably need Nema34 steppers to overcome the inertia of the ballscrew.

Have a look through the build logs in this section of the forum and inwardly digest all the information that's there, knock up a design and we'll all comment on it and help you