[boydage]

This is a good subject. Because often I manufacture parts with a height of 50 - 60mm. My home built machine, well, I haven't used an endmill larger than 14mm 2 flute except for my facing bit. It's not rigid enough for anything larger.

So I either flip the part, not ideal it's an ok machine but not perfect. I would get a very small lip in the middle. Only a thou of an inch but still there.

My question then is, say 55mm DOC to finish a wall, that's quite an endmill yes? What would you use?

I actually wonder if I would get away with something like an 18mm 3 flute, new, sharp, taking off 0.2mm 55mm deep in a finish run. You have made me think about this. Thanks. Further thoughts?

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[mactec54]

This is a good subject. Because often I manufacture parts with a height of 50 - 60mm. My home built machine, well, I haven't used an endmill larger than 14mm 2 flute except for my facing bit. It's not rigid enough for anything larger.

So I either flip the part, not ideal it's an ok machine but not perfect. I would get a very small lip in the middle. Only a thou of an inch but still there.

My question then is, say 55mm DOC to finish a wall, that's quite an endmill yes? What would you use?

I actually wonder if I would get away with something like an 18mm 3 flute, new, sharp, taking off 0.2mm 55mm deep in a finish run. You have made me think about this. Thanks. Further thoughts?

Sent from my SM-N970F using Tapatalk

It would depend how rigid your machine is, and how good the spindle is, I have long End Mills that can do more than 100mm deep in a pass, so 55mm is not much for a rigid Machine / Spindle