Aluminium Extrusion Router Build

[AndyGuid]

I have discovered however that the aluminium cuts a lot like high density hardwoods such as english oak, african blackwood or leadwood, although things need to be well clamped as the aluminium is a bit grabby.

In other ways it is easier as with a bit of cutting oil you can get really good cuts and keep the cutter cooler than when cutting the hardwoods.

I cut a 35mm diameter by 12mm deep hole in one of the gantry end plates for the FF12 ballscrew support just with a standard forstner bit.

With the addition of the cutting oil the bit never got very hot and when I had finished it was cool enough that I could hold it, definitely not the case when cutting the denser hardwoods with the same forstner bit.

Thanks for that very useful info!
Andy