Historian's Resource Page

[Historian]

A Historian link.
One is never too old or jaded not to learn from, let alone appreciate,
top notch machining techniques. For your visual enjoyment and edification.

<< http://www.homegunsmith.com/archive/T25658.html >>[/

You found my baby belt fed from the home gunsmith site! Man, that was a lot of fun to do.

I'm going to eat s--t for this, but it's still not done. All it needs is anodizing and park. Just have to get off my ass and finish her.

I think I'm a little afraid that it won't function as I'd like in the sense that the Lakeside belt feed upper is known to be finicky. I do have the Razorback bolt... that is supposed to fix 95% of the full auto issues associated with the LM-7. I'm glad I bought one - the LM-7. No longer in production and now slowly becoming collectible. A little swiss watch of a firearm mechanism.

My sincerest respect for your metal mastery, design, precision, and excellent tutorial!

A standard that motivates and inspires one to hone their skills.

Bet if electro-microscopy is focused in on the DNA of guys like us
the double helix is shaped like the spring in a Bergman SMG snail drum
and part of the XY chromosome has a strand in an outline shaped like that
of an FG-42 ... including the filter kit on scope.

Most appreciative.

Best!

[Historian]

Single-Point-Threading on Lathe/ Never Stop Learning & Improving

Found this clear step by step exposition of
single point threading on lathe ... including the
number of cuts per depth.

Hopefully it will help in reducing the number of SCREW ups
that one must go through to become proficient.

<< http://rick.sparber.org/ftt.pdf >>

Like revisiting the old curmudgeons with encyclopedic practically
acquired knowledge that impressed a freshman long ago.

<< https://www.youtube.com/watch?v=qpRX-ffL274 >>

And a good example by a gunsmith:
Gunsmithing: Cutting Threads on a Barrel Blank Part 1

<< https://www.youtube.com/watch?v=2w0AnGNO4yo >>

[T-Rex]

Thought you'd like this.

[Capt. Link.]

Superb

[Lilpooh]

Not sure how useful with is to suppressor, but this was really neat and may have to try it.
http://youtu.be/AuS6HDHc7XE

[Capt. Link.]

The cube machined in a cube was a standard test for a machinist before being hired in my day.+- .0005

[T-Rex]

Not bad for 1912 tech

[fastfire]

Not bad for 1912 tech

Been thinking about using an end cap similar to this in my next .308 build (a one piece end cap and baffle).
But then I do not see this in any modern builds.
Reasoning?

[Historian]

"Making Female Spheres"

<< http://madmodder.net/index.php/topic,11126.0.html >>

Ran across this interesting technique for making inner sphere/cup
on lathe.

Notional baffle design suggests itself of an 'I-beam' cross section baffle
with a spherical cups on both sides. When stacked together
they create spherical chambers, an easy to disassemble mono core.

Reminiscent of a bartender's Double Jigger Shot Liquor Measuring Glass.

<< http://rapidswholesale.com/1-2-and-1-1- ... HwodlikBAw >>

[Historian]

Thanks to the Good Capt. for suggesting my adding information
included in another post:

Lathe Milling Attachment:

e.g., << https://www.youtube.com/watch?v=vVUK-h-0iWQ >>

<< http://www.gadgetbuilder.com/PostMiller.jpg >>

<< http://www.gizmology.net/millattach.htm >>

Uses: making a larger winter-glove trigger guard, monocores, etc.
Making a tool to hold another tool.

[Historian]

Unimat lathe slotted table for lathe milling machine:

<< http://i.ebayimg.com/00/s/MTIwMFgxNjAw/ ... o0/$_1.JPG >>

This sturdy table fits firmly into the jaws of the milling attachment and gives one
serious holding of odd shaped parts to work with that the small jaws do not.

I use two Atlas 618 milling attachments in tandem on my modified cross slide.
Into which I have positioned a Unimat milling table. This 'long' double
extended milling configuration creates a wide and very stable
table for working on parts that would otherwise
twist with one milling attachment.

Note: end mills held securely and safely with the ER collet system.

[Historian]

Following up on making a small lathe cranking handle
that allows for accurate single point threading this YouTube
tutorial may prove useful:

<< https://www.youtube.com/watch?v=8Isot6KaWs0 >>

Especially helpful for careful internal threading of tubes.

[Historian]

Bust Pressure for Tubes in an article of the
stellar D.A. Quakenbush. Not so widely known
but safety necessary information.


For example:

" Fifth [ tube ] is .065 wall. Burst would be 8450psi."

<< http://www.quackenbushairguns.com/steel_for_airguns.htm >>

[T-Rex]

Bust Pressure for Tubes in an article of the
stellar D.A. Quakenbush. Not so widely known
but safety necessary information.


For example:

" Fifth [ tube ] is .065 wall. Burst would be 8450psi."

<< http://www.quackenbushairguns.com/steel_for_airguns.htm >>

Online Pipe Burst Calculator
http://www.engineersedge.com/calculator ... t_calc.htm

[Historian]

OGIVE*:

Working on restoration of a 1940's auto we needed
some cones cuts for parts. Buddy made a tool that
was found on YouTube. Has many interesting applications.

<< https://www.youtube.com/watch?v=z5nQ9gqcOKA >>

*Pronounced "Oh-Jive"

[gunny50]

OGIVE*:

Working on restoration of a 1940's auto we needed
some cones cuts for parts. Buddy made a tool that
was found on YouTube. Has many interesting applications.

<< https://www.youtube.com/watch?v=z5nQ9gqcOKA >>

*Pronounced "Oh-Jive"

Finally a way to produce those rare and hard to get 35mm projectiles on conventional lathe.
Gunny

[Historian]

OGIVE*:

Working on restoration of a 1940's auto we needed
some cones cuts for parts. Buddy made a tool that
was found on YouTube. Has many interesting applications.

<< https://www.youtube.com/watch?v=z5nQ9gqcOKA >>

*Pronounced "Oh-Jive"

Finally a way to produce those rare and hard to get 35mm projectiles on conventional lathe.
Gunny

Or reproduce if, heaven forbid, the front 'rockets' (Jane Russells ) on my 1956 Cadillac El Dorado.

e.x., << http://farm9.staticflickr.com/8478/8187 ... 62c1_o.jpg >>

[Capt. Link.]

New edition's to the shop from:
Metal Lathe http://www.statecollegecentral.com/meta ... index.html

Milling attachment


Cross slide


Milling base


Filing Machine

[Historian]

Informative tutorial for possible future barrel
threading on lathe.

<< https://www.youtube.com/watch?v=Ba3_3qseCB4 >>

And a Gem barrel machining posted on the RimfireCentral.com/S&W41 site that
makes one want to have a modern lathe after winning
MegaBucks.

<< https://www.youtube.com/watch?v=fSzXNlQ97VI >>

[Capt. Link.]

Bump

[T-Rex]

Supreme Skills! Turning vs. Spinning: The Quest for Ultimate Precision!:

[Capt. Link.]

Supreme Skills! Turning vs. Spinning: The Quest for Ultimate Precision!:

Interesting but can't hack the drama queen narration.I'm glad neither craftsmen farted as I could not stand to hear how it was a skill.

Thank you for retrieving this lost thread.

[T-Rex]

I think you'll like this one.

[fishman]

I think you'll like this one.

I feel like a used mini lathe would be far more usefull for a similar price

[T-Rex]

Here's another.

I feel like a used mini lathe would be far more usefull for a similar price

It's about ingenuity and necessity, not practicality.