Looking for special angle gage block

[Lucky Shooter]

I've looked unsuccessfully for an angle gage block to set the compound
to turn a MT-5 taper plug.

I've made this taper once by doing a lot of indicator work to copy an inside taper.
This worked but took too long----don't want to do this again if possible.

I have a Machinery's Handbook 25 but don't have a sine bar----and wouldn't know how to use it
if I had one.


The gage block seems to be the best way for me------if I can find one.

Will appreciate any information.

A. Weldy

 

[butchlambert]

Sine bars shouldn't be spindy. Email my Uncle, he is getting rid of a lot of tooling.
clarke.bill@sbcglobal.net
You will need a sinebar and a set of gauge blockes to get an accurate setup.

 

[DaveTooley]

I would think someone on here with CNC lathe could do this for you in about 13 minutes. I would but my Haas is setup for chamber work. No chuck

 

[carlsbad]

Doing the trigonometry is the right way to do it--you should do it to confirm after you use the gauge block anyway. MT fit tools need to be very precise.

 

[tobnpr]

Not sure what exactly you mean by "plug"- but any chance you could modify an MT5 dead center to what you need?
Could even be annealed to machine it if necessary.

 

[TAJ45]

We did one as apprenti. However, it was on a cylindrical grinder and we had a female Gage to fit it to. Using Prussian Blue, very, very light dabbing w forefinger installing blued finger prints.....just look for disruption of the swirls.
I do remember that it took very little matl removed to sink it deeper into the Gage. (shallow angle) We put a tang on ours.

I'm curious as to the "grabability" of the taper if a turned finish, even if polished nearly perfectly re actual angle.
But, you said you've done it before, so I guess I'm too far into perfection.
I think Keith has a sine bar. I know he has Gage blocks.
Lemme know how it turns out. I am interested.

 

[Lucky Shooter]

Thanks for all the replies.

I'm going to re-think this effort and try to learn more about sine bars-----don't have
any problems with the math for this.

A. Weldy

 

[GenePoole]

The math is simple enough. Here's a video I found entertaining at least, even if I didn't learn anything new.

 

[butchlambert]

i don't have enough attention span to watch a long movie. Seems my machinist handbook tells me how much in gauge blocks under my 5" sine bar to get an exact angle.

 

[Someoldguy]

I guess I'm the idiot in the room. I needed a MT for a reamer holder I made. So I made it. I guess I didn't realize this was a big deal. (?).

It works. Good enough for me.