![]() ![]() Then I was convinced that this is the way to go for me too. The mill used was not a new one, standard second hand purchased HSS mill. It sounded like a very happy and satisfied machine. It went trough the job 5 times quicker and the machine did not make any noise nor any vibration. When running with the same operation with 20.000 rpm and a feedrate of 800 to 1000mm/min the machine was absolutely quiet. The finish is good but it does not sound optimal. Normally I use 2000rpm for a 6mm end mill in aluminium with a feedrate of 150 to 200mm/min max, but the machine makes a little noise and vibration. When I got a demonstration I was totally surprised on how well it worked out. I did not believe this would be good for home shop machining, expected to smoke up the tooling etc. Recently a friend of me mounted a Kress high speed milling tool (max rpm is 25000!) on his PCMill. I am sure the invested time will pay off when getting back to the model engine building. At this moment I try to focus on my machines and tools and try to get them completely finished including the desired accessories. Did I ever mention that I am much better in starting projects then on finishing them While I am scratching my head on the Boxford tooling I had some time left for a nice in-between project.
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