Machining Tool question

[bridgeport]

Thank you, I will take a look.

This may be a silly question, but if I were to take a HSS square endmill, fixture it vertical and use a carbide endmill of the needed size to mill out a center hole in the HSS, do you see it working? Obviously I would clean up the inner edges of the cutting faces at the hole.



I am not thinking dowels. I am thinking pins protruding from flat surfaces.

Using a rotary cross slide on a knee mill you could accomplish what you are looking to do, and that is the way it would have been done in the pre CNC days in a small shop. In tool and die making, it was common to drill holes and press pins for alignment so that would be another simple way to accomplish having studs protruding from a workpiece. Using a rotary cross slide though will allow for the studs to be integral to the original piece and has the added benefit of allowing for some very complex work to be milled around the studs/pins.

[MosinVirus]

Using a rotary cross slide on a knee mill you could accomplish what you are looking to do, and that is the way it would have been done in the pre CNC days in a small shop. In tool and die making, it was common to drill holes and press pins for alignment so that would be another simple way to accomplish having studs protruding from a workpiece. Using a rotary cross slide though will allow for the studs to be integral to the original piece and has the added benefit of allowing for some very complex work to be milled around the studs/pins.

Yup. I have a harbor freight mini mill.

[bridgeport]

Yup. I have a harbor freight mini mill.

Ok, just watched a vid on the mini mill.... not gonna get a troyke on one of those, and a Palmgren would cost more than the mill. It will be interesting to see if such a small mill has the juice to run a hollow tool. Let us know if you try.

[MosinVirus]

Ok, just watched a vid on the mini mill.... not gonna get a troyke on one of those, and a Palmgren would cost more than the mill. It will be interesting to see if such a small mill has the juice to run a hollow tool. Let us know if you try.

I probably will not. The idea I had kind of fell through.

[alland]

The one hollow cutter that I have used was for removing a broken ejector from a Rem 870. It left enough of a stud to be able to stake in a new ejector without having to use a new rivet.

[Twystd1]

Mosin, If you need the use of a bigger mill to practice making this stuff. And you are willing to drive down to the OC. I have a (bigger than) Bridgeport clone as well as RF45 mill with DRO. Also have a 13" lathe you can use. I am reasonably well tooled as well. Most evening or weekends.

Note, in the comparative analysis of watching Randal machine metal and watching me machine metal. Well.... I don't know squat. Yet I do have the tools. And a modicum of understanding of the basics.

Bottom line. You are welcome to come play in my hobby shop if needed.

-T

[MosinVirus]

Mosin, If you need the use of a bigger mill to practice making this stuff. And you are willing to drive down to the OC. I have a (bigger than) Bridgeport clone as well as RF45 mill with DRO. Also have a 13" lathe you can use. I am reasonably well tooled as well. Most evening or weekends.

Note, in the comparative analysis of watching Randal machine metal and watching me machine metal. Well.... I don't know squat. Yet I do have the tools. And a modicum of understanding of the basics.

Bottom line. You are welcome to come play in my hobby shop if needed.

-T

Thank you very much for the offer. I would gladly take you up on that if you were a little closer.

[67Cuda]

as well as RF45 mill with DRO.

The name Rong Fu always cracks me up. LOL