Testing 3018 Pro Max CNC on Aluminum - Quick 2D Carve Test (LUNYEE)

[@roboticswithmatt]

I have a cheaper version of this machine with a much weaker "spindle", and it sounded like this when I was just cutting wood. Everyone says these machines aren't good enough to cut aluminum, it's amazing to see someone actually trying (and succeeding) before just assuming it can't cut aluminum. I ended up replacing the X axis rods with linear rails and X carriage 3d printed with CF-PETG for rigidity to reduce vibrations.

[@NoobsDIY]

Thanks you, I ended up making another video giving 3d carving a try and was able to cut out a fishing spoon, I blew a few bits up but eventually got it to run somewhat smoothly. The biggest issue I had was the vibrations were intense and the machine started to fall apart so I needed to re-tighten some of the bolts down. I had my best luck with a 1/8 in carbide single flute end mill and 0.15 mm step down at 254mm/min feedrate. I did try 0.3mm step down and it worked but was kinda sketchy so I dont think in the future I will go over 0.25mm if i want to be aggressive. The lube I tried was kinda whacky so I didnt mention it in the video since I know it sounds strange but I was mixing mineral oil and isopropyl alcohol with the hopes that the mineral oil would be great for lubricity and the fast eveaporating alchool would be great for cooling. Most info I found online says straight alcohol is good and in all honesty is probably the best since you dont make an oily mess blowing chips off.

[@densanden]

What kink of P.C. would you suggest for this CNC?

[@NoobsDIY]

I just use an old laptop to control the machine since its gonna get covered in dust. Cheers,

[@densanden]

Okay, thank you for your response.