I have always made these with my router. Now… why bother with that. Lol. The MPCNC handles 0.25 inch four flute end mill with 6 mm DOC and 25% overlap in the pocketing in walnut like a champ. All the other settings were from the milling basics page.
I have another one to make, but that has a v-carve and resin full of the clients logo. I will only post that with his express permission once it’s complete.
Ha. I was wondering about lift of the part. I have t channels and clamps and after about a month of clamps switched pretty much to painters tape and hot glue too.
Is it? This could be my ignorance… from what little I dug into, at 1/8th inch you want 1-2 flutes. At 1/4 inch you can start adding flutes and it will help chip clearance rather than hurt it.
I’m sure the experts will be by shortly (certainly ain’t me!) but I wouldn’t listen too carefully if it contradicts your results (which are great!). Maybe it is just that most of the advice IS for the smaller mills, but I came away thinking that it had as much to do with the mpcnc not being able to run fast enough to keep the feed per tooth up, leading to rubbing if you couldn’t, and skipping steps if you could.
I think the only real CLEAR takeaway is that it is…complicated.
Either way, for whatever reason, I think it’s neat you ran 4 flutes, and even NEATER that your work looks so dang good!
Here is the mills. I thought they were carbide, but I must have remembered incorrectly. 2 1/4 inch mills for <$6. In-tool-home 1/4 inch HSS 4 Flutes End Mills Milling Cutter End Drill Bit Straight Shank Pack of 2 https://www.amazon.com/dp/B01099VUQY/ref=cm_sw_r_cp_api_i_7o2oEbCHAWTR2
If you used a t-slot bit you wouldn’t even have to glue them in. You could just slide them from one end into the slot and add a dowel plug at the end. Chip clearing might be a trick though. Maybe cut the channel at 3/4 the size of the magnets first?