C Craft Posted April 8, 2021 Share Posted April 8, 2021 I am working on surface grinder attachment for my KMG clone! So here is a mock up I borrowed from the net! To try and explain what I am up against! So you can refer to the concept drawing. So if you notice the magnetic strip up against the wheel the belt will run on. That is what I am about to attempt to cut the slots for the magnets. There is not a machine shop in my town and most of the ones the next town don't want to mess with this small a project and if the do they want an arm and a leg. Since I don't one of either I want to give up, (arm or leg) this is what I am about to do! I am going to set up my 2 1/4 HP variable speed plunge router to cut those slots for the rare earth magnets. So here is where I am looking for some advice. (I know from my woodworking experience that a 1/8" deep cut is probably maximum for depth per pass on the cuts!) So I am going to guess this would be true for aluminum as well! Which is going to be the best end mill router bit for cutting slots in 3/4" aluminum bar stock?? My understanding a two flute bit is probably the best! They also say running the end mill bit at: Instead, any milling process run at around 15,000 rpm or higher is likely to offer some optimum spindle speed, a "sweet spot," where the cut is significantly more stable than it is at both higher and lower speed settings. This sweet spot rpm value may permit double the depth of cut compared to other speeds! Any advice on this set up will be considered and appreciated!! This is virgin territory as far as cutting aluminum. I have used routers for years but always on wood or formica! So I am open to any advice on cutting these slots. Type of bit, speed and depth of cut! C Craft Customs ~~~ With every custom knife I build I try to accomplish three things. I want that knife to look so good you just have to pick it up, feel so good in your hand you can't wait to try it, and once you use it, you never want to put it down ! If I capture those three factors in each knife I build, I am assured the knife will become a piece that is used and treasured by its owner! ~~~ C Craft Link to comment Share on other sites More sharing options...
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