01-07-2015, 08:43 PM
I just saw my post was written a little unclear. I'm having no problems with the VG112 grooving tool and inserts - they are working fine and I love that tool. If I had any complaints, it would be that the surface finish of the parted piece isn't pretty but I can simply face it. I know this is down to the lack of sufficient SFM but I can live with that. I just have to allow for that when using it.
I understand what you are saying about manufacturer's not testing their products on circa 1890 lathes with babbit bearings and (in the case of my busted feed system) no auto feed. However, some have worked extremely well using the specified DOC and broken the chips. I simply experiment with the DOC, try to crank at a different speed or switch inserts and keep notes. Sometimes I have the same issue on my friends late which has a much higher top speed than mine. However, I can generally work around it.
The post I am thinking about was one in which you detailed the toolholder nomenclature and the steps in using that information to make smart decisions about inserts. There was a fair bit of Q&A stuff in there too but you covered the major areas: turning, boring, parting, threading and milling. Information on common pitfalls, such as proprietary tooling, avoiding the cheap toolholder sets etc. Lots of pearls of wisdom for those of us who often feel like we are looking at ancient Egyptian hieroglyphics! I basically went from knowing absolutely nothing to the point where I can work my way through issues that arise as a result of that. Of course, your personal tutelage over the years has also helped a lot. I'm sure that Ed may recall the thread I am talking about.
You have probably covered a lot of the info here but it is dispersed over multiple threads on a site with an iffy search feature. I'll have a look through my files, as I think I cut and paste a lot (if not all) of your info in that post into a word document. All this said, it may well be something that you simply don't have the time to put together.
I understand what you are saying about manufacturer's not testing their products on circa 1890 lathes with babbit bearings and (in the case of my busted feed system) no auto feed. However, some have worked extremely well using the specified DOC and broken the chips. I simply experiment with the DOC, try to crank at a different speed or switch inserts and keep notes. Sometimes I have the same issue on my friends late which has a much higher top speed than mine. However, I can generally work around it.
The post I am thinking about was one in which you detailed the toolholder nomenclature and the steps in using that information to make smart decisions about inserts. There was a fair bit of Q&A stuff in there too but you covered the major areas: turning, boring, parting, threading and milling. Information on common pitfalls, such as proprietary tooling, avoiding the cheap toolholder sets etc. Lots of pearls of wisdom for those of us who often feel like we are looking at ancient Egyptian hieroglyphics! I basically went from knowing absolutely nothing to the point where I can work my way through issues that arise as a result of that. Of course, your personal tutelage over the years has also helped a lot. I'm sure that Ed may recall the thread I am talking about.
You have probably covered a lot of the info here but it is dispersed over multiple threads on a site with an iffy search feature. I'll have a look through my files, as I think I cut and paste a lot (if not all) of your info in that post into a word document. All this said, it may well be something that you simply don't have the time to put together.
Hunting American dentists since 2015.