Questions on using a moving gantry style mini-mill...

[Boyan Silyavski]

I wonder how you take so brave cuts and meanwhile try to tune your mist system....


Why just you dont cut a 50x50 mm pieces and figure there the speeds, feeds and mist system.



Here are some tips, you could say cornerstones:



-mist system tip should be 0.8-1mm, 2-2.5 bar pressure at reservoir, mist spray length should be 80-100mm if all done correctly. when done correctly it will blow away even when 20mm bit cutting



About the cuts in aluminum. you will continue to snap bits until you don't figure what are you doing. Deep slotting is a recipe for disaster. Make slot double wide so you have space where the chips to go, or go slower.


Start from 12000rpm and ~600mm/min, slowly rise speed and look about the quality of the cut/6mm 2 flute/. But not on big pieces. Make small pieces and test all untill happy, including final slot depth test.


And better more mist than not at all

I leave 4mm thick by 10mm long tabs