My home-made CNC router milling some aluminium

Here my home-made CNC router is milling a scale RC helicopter tail rotor hub from a piece of 6082-T6 aluminium.

You can see me spraying spirit on the work piece occasionally for cooling. This works great for aluminium.

Category:

Science & Technology

Tags:

• CNC
• router
• mill
• aluminium
• rc
• helicopter

[KeithWasHere1]

A: what is your tool,a Rotozip or dreml or what? B what kind of tooling is best with this setup 2 or 4 flut endmills/face mills.

[tahustvedt]

@KeithWasHere1

It's a Kress 1050 W spindle. I ordered it from cncplus in Germany. Both 2 and 4 flutes work well. I use what I have on hand. 4 needs more lubrication and/or different rates. 4 flutes give a nicer finish on the sides.

[KeithWasHere1]

Hello perhaps someone could tell me why is it the importance of holding torque? when i got tebay and type in Nema34/23 motors i get all kinds with different holding torques..again what is the importance of holding torque? any and all information is greatly appreciated. thanks Keith.

[tahustvedt]

@KeithWasHere1

Check out the forum on cnczone for info on which motors and screws to use to achieve what you want. The torque is only part of the story.

[sietevicio]

1232

[douro20]

Some people think steppers are slow. A Morbidelli U15 will do 750ipm rapids and it runs steppers.

[donnyab]

if you did it very slowly could you mill out say 1mm holes in steel, taking many passes

[baloneyjazz]

How to clamp the part sideways? I was thinking of milling parts in two or more orientations but I cant figure out how to accurately clamp and find set zero again.

[tahustvedt]

@CxC2007

The steppers are more than strong enough, even with 10 mm pitch screws.

This video is very old, and I use a different method to mill aluminium now. I run shallow cuts and high feed rates to avoid heating up the tool and material now. That way I don't have to use as much coolant.