Thread: Aluminium Extrusion Router Build
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20-02-2018 #1
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20-02-2018 #2
Hi, thanks for the compliment, I'm quite surprised at how well the build is going myself. 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 others way 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.
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21-02-2018 #3
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22-02-2018 #4
I forgot to add that when I used the forstner bits I had to drill a pilot hole through the aluminium as the centre part of the forstner bit won't cut the aluminium. For example I used a 4mm drill for a 36mm forstner bit which also acted as a good guide to get the bit started. Anyhow I got the hole drilled out for the FK12 bearing and test fitted it.
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The Following User Says Thank You to NFryer For This Useful Post:
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31-05-2018 #5
MILLING WITH A ROUTER!? Impressive. Nice work!
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