- Joined
- Sep 29, 2017
- Messages
- 2,244
I am posting this in this room,but it is not a project of the day but rather days.
When it comes to keyway broaching in the lathe I usually had a bit of a sigh on on my face, because I am not a big fan of moving the carriage back and forth all the time and a specially when doing keyways in taper bores. Those I am not a fan of at all. I don't think the compound rest screw was designed to take so much force for broaching. Sooooo lets make a broaching tool. I've been wanting to for a while now and a job came in wich required blind 8mm keyways.
I made a lathe drill holder a short while ago so I thought I am going to modify it so I can use it for this purpose aswell.
I just had to mill out a section for a the hinge mechanism and I made two bushes out of teflon,wich is fine for this in my opinion.
I guess I could have made this much simpler,but I wanted it nice......that's just me.
This is the hinge parts. Forgot to take pics of the manufacturing process.
I must say my new Vertex BS-0 dividing head came in pretty handy on this project,I just got it in time.
I made a nice strong broaching arm with a fine knurled handle section on it.
The broach rod has a removable part in front for different size bores and key sizes.
I realised how important the broach tool form actually is. This shape worked best for me.
The final product and it works pretty well.
Thanks for watching
Michael
When it comes to keyway broaching in the lathe I usually had a bit of a sigh on on my face, because I am not a big fan of moving the carriage back and forth all the time and a specially when doing keyways in taper bores. Those I am not a fan of at all. I don't think the compound rest screw was designed to take so much force for broaching. Sooooo lets make a broaching tool. I've been wanting to for a while now and a job came in wich required blind 8mm keyways.
I made a lathe drill holder a short while ago so I thought I am going to modify it so I can use it for this purpose aswell.
I just had to mill out a section for a the hinge mechanism and I made two bushes out of teflon,wich is fine for this in my opinion.
I guess I could have made this much simpler,but I wanted it nice......that's just me.
This is the hinge parts. Forgot to take pics of the manufacturing process.
I must say my new Vertex BS-0 dividing head came in pretty handy on this project,I just got it in time.
I made a nice strong broaching arm with a fine knurled handle section on it.
The broach rod has a removable part in front for different size bores and key sizes.
I realised how important the broach tool form actually is. This shape worked best for me.
The final product and it works pretty well.
Thanks for watching
Michael