Todays Project - What did you do today?

[dallen]

(11-26-2014, 03:08 PM)EdK Wrote: That's starting to look real nice David, and it appears QC agrees.

Ed

as we used to say out if the field when I was working, its a work in progress. There's still a lot of sanding and filing to do, plus the trigger setup has to be fine tuned and about a 1000 other things that will rear their ugly heads before I end up finishing it.

I'll try to get a decent full shot of it to post

DA

[TomG]

(11-24-2014, 10:13 PM)PixMan Wrote: David,

Would it be willing to post the drawing of the long thin sight leaf in your thread in Gunsmithing section? I'd like to get input from experienced guys like Tom, Arvid and others who may have faced a similar challenge. It's not the long thin part of it which I find myself scratching my head about, rather the junction of the Ø 0.310 round with the 1/4-40 thread where it meets the 0.150" wide blade.

I have several ideas but would like others to see it so we can bounce some ideas around the collective here.

There is no easy way to do it Ken.when I made mine, I drilled and reamed the small internal radii adjacent to the leaf, used a corner rounding end mill for as much of the rest as possible and finished up with a hand ground form tool in a fly cutter. I wanted it all steel so I could case harden it when it's finished.

Tom

[Mayhem]

Today I chucked up this piece of scrap:

   

and found this hiding inside it:

   
   
   

I think this covers all the processes: turning, facing, grooving, parting, drilling, single point threading, tapping and knurling.

[wrustle]

Looking good there Darren!

[stevec]

Looks great Darren but, whatzit for?

[f350ca]

Obviously not the quality of Pixman's drill bits. First hole with this NOS bit I got some time ago from my uncle, no brand on it but expect North American, came from the machine shop at Stelco Steel.
As it started drilling there was a high pitch chatter, then this, you can see it was fractured down the web from forming, its got blueing down the crack.

[DaveH]

Seems if there is blueing down the crack it must have been cracked before it was blued.
 
DaveH

[Mayhem]

(11-29-2014, 11:21 AM)stevec Wrote: Looks great Darren but, whatzit for?

Its a puller Steve.  A 5/8-11 screw threads into the centre.  I'll post more in my surface grinder thread a little later today...

(11-29-2014, 01:58 PM)f350ca Wrote: ...As it started drilling there was a high pitch chatter, then this, you can see it was fractured down the web from forming, its got blueing down the crack.

Is the workpeice damaged in any way as a result of the failure? If so, is it salvageable?

[EdK]

(11-29-2014, 01:58 PM)f350ca Wrote: Obviously not the quality of Pixman's drill bits. First hole with this NOS bit I got some time ago from my uncle, no brand on it but expect North American, came from the machine shop at Stelco Steel.
As it started drilling there was a high pitch chatter, then this, you can see it was fractured down the web from forming, its got blueing down the crack.

Well that sucks, but even the best have some slip through the cracks (no pun intended ).

Ed

[stevec]

Ed, no cracks about slipping through the cracks please.      


SteveC