I would say you greatly overestimate the rigidity of the tool and toolholder. :) That's only a 5/8" shank, and the insert is only held in with a screw. There's no Sandvik style clamp or other assist. I have plans for a custom-made, beefier toolholder, but my To-Do list is already miles long. :)
Frankly i do beefier cuts on a manual lathe with 2.2kw motor. Do it in two passes but drop feed down to a level that your tool rigidity allows. Lack of chatter is your benchmark in here. You already have too small feed bencause chips are not breaking properely and swirling. Dropping it down some more wont cause any more trouble. @@DocsMachineShop
For some reason I am endlessly amused by the fact that you run vegetable oil in your see-um-sea machines when so many machinists on teh interweebs use 2% milk ...
Hee! It's mainly a time-between-uses thing. For a shop running a machine regularly, proper coolant (soluble oil) is by far the better choice. But I might go weeks or months between uses, and rust, evaporation and rancidity are all definite issues with water-based.
@@DocsMachineShop one day I will visit a YT machine shop with a bottle of bright red chocolate colouring ... Which is oil based (unlike food colouring) and will tint soluble oil ^-^
I find it fun that so much can be done with turning.
Thanks for sharing Doc! Those look like something they would have used in the movie The Rock
Thanks for another great machining video Doc :)
Looks like you're getting the hang of programming the Omni.
Getting there. I need to work more on the "peck drilling" cycle, obviously, but I'm getting more and more comfortable with it.
Those are some chunky looking foregrips/Gas throughs. Tiny hands need not apply... lol
What do I have to say to convince you to do your OD cuts in two passes!
I would say you greatly overestimate the rigidity of the tool and toolholder. :) That's only a 5/8" shank, and the insert is only held in with a screw. There's no Sandvik style clamp or other assist. I have plans for a custom-made, beefier toolholder, but my To-Do list is already miles long. :)
Frankly i do beefier cuts on a manual lathe with 2.2kw motor. Do it in two passes but drop feed down to a level that your tool rigidity allows. Lack of chatter is your benchmark in here. You already have too small feed bencause chips are not breaking properely and swirling. Dropping it down some more wont cause any more trouble. @@DocsMachineShop
did you make the dead length collet or buy?
Commercial Hardinge unit.
For some reason I am endlessly amused by the fact that you run vegetable oil in your see-um-sea machines when so many machinists on teh interweebs use 2% milk ...
Hee! It's mainly a time-between-uses thing. For a shop running a machine regularly, proper coolant (soluble oil) is by far the better choice. But I might go weeks or months between uses, and rust, evaporation and rancidity are all definite issues with water-based.
@@DocsMachineShop one day I will visit a YT machine shop with a bottle of bright red chocolate colouring ... Which is oil based (unlike food colouring) and will tint soluble oil ^-^