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Forum: Individual Classifieds 10-14-2018, 01:19 PM
Replies: 8
Views: 390
Posted By crystallographic
Yo Rick, Now I see the Weaver in this unit........

Yo Rick,
Now I see the Weaver in this unit..... yeh, 14ga is right on.

Many's the time the developer went to a manufacturer for production runs, only to have the mfr enter into direct selling...
Forum: General Discussion 10-13-2018, 08:09 PM
Replies: 10
Views: 373
Posted By crystallographic
The man at John Deere said he had run that...

The man at John Deere said he had run that machine for over 35 years, so I guess he meant that changing the machine over to a different operation was time-consuming for him.
Forum: General Discussion 10-13-2018, 04:05 PM
Replies: 10
Views: 373
Posted By crystallographic
John Deere Magee machine

Just a "By the Way..."
I spoke at length with one of the John Deere metalmen a few years ago. His specialty was running the Magee to make the fenders and hoods.
The big takeaway for me:
"The Magee...
Forum: Individual Classifieds 10-11-2018, 10:48 PM
Replies: 3
Views: 416
Posted By crystallographic
Marchant does apply some power -- like that...

Marchant does apply some power -- like that shrinker that curves 1inch I beams.
GROINK!
I love hearing the metals speak.
(limited vocab, tho ... :rolleyes:)
Forum: Events 10-11-2018, 10:44 PM
Replies: 0
Views: 138
Posted By crystallographic
It's Metal Camp time again

Starting another 4day "metal camp" in the morning. Have a number of certified welders, aviation folk, and professionals attending.
Should be rewarding, entertaining, and with some serious focused...
Forum: Basic questions and answers 10-11-2018, 10:33 PM
Replies: 12
Views: 614
Posted By crystallographic
Yep. Yas, and .... yabetcha.

Yep.


Yas, and .... yabetcha.
Forum: Welding Sheet Metal 10-11-2018, 12:47 PM
Replies: 10
Views: 477
Posted By crystallographic
Funny thing about sourcing some stuff is how the...

Funny thing about sourcing some stuff is how the prices vary so much.
The Meco N Midget should be about $125.US, with a standard neck and a tip or three.

Pistol torch (Dillon, Henrob, DHC,...
Forum: Basic questions and answers 10-11-2018, 12:26 PM
Replies: 12
Views: 614
Posted By crystallographic
annealing metal alloys - 6061, done in the field

"Annealing" is a procedure done to soften metals with correct heating to correct temperatures, holding for a correct amount of time, and quenching at a given rate.

Different metal alloys require...
Forum: Basic questions and answers 10-10-2018, 09:18 PM
Replies: 12
Views: 614
Posted By crystallographic
Hi Wes, 6061 is not that bad once you get used...

Hi Wes,
6061 is not that bad once you get used to it, actually.
Yes, you can soften it a bit for 12-18 hours by heating to 650F - black marker burns off - then quench with cold water.
Gas welding...
Forum: Introductions 10-10-2018, 08:47 PM
Replies: 4
Views: 208
Posted By crystallographic
Welcome to the metal gang, Sean. Seems a few...

Welcome to the metal gang, Sean.
Seems a few over-qualified guys now up in Montucky ...
Forum: Individual Classifieds 10-10-2018, 08:45 PM
Replies: 3
Views: 416
Posted By crystallographic
John, That is right about what they are going...

John,
That is right about what they are going for.
Forum: Basic questions and answers 10-02-2018, 01:14 PM
Replies: 21
Views: 1,615
Posted By crystallographic
Hi Dave, Shop annealed or "field annealed"...

Hi Dave,
Shop annealed or "field annealed" means heat softening with no precise oven controls, so using a torch with some sort of temp. indicator for the hot side, holding the temperature for...
Forum: Basic questions and answers 09-29-2018, 05:15 PM
Replies: 21
Views: 1,615
Posted By crystallographic
When I choose material temper I look for how fast...

When I choose material temper I look for how fast it work hardens.
And can I readily shop-anneal critical areas, quickly.
By these simple criteria I can avoid trying to harden up selected full-soft...
Forum: General Discussion 09-25-2018, 03:48 PM
Replies: 6
Views: 376
Posted By crystallographic
Way to go Bill. Good friends having fun on...

Way to go Bill. Good friends having fun on projects.
That course has been shortened a LOT, over the decades - much more of a spectator sport now. Glad to see no snow fell this year.

I see the big...
Forum: Comments and Suggestions 09-24-2018, 12:42 PM
Replies: 2
Views: 358
Posted By crystallographic
That is the Czech spirit, Jaro. This is just...

That is the Czech spirit, Jaro.
This is just one man of many like him. Great perseverance and "how-to" energy!
Yes, I know about the "Round the World Thomas Flyer" because I worked at HAC (Harrah's...
Forum: Basic questions and answers 09-24-2018, 12:27 PM
Replies: 4
Views: 298
Posted By crystallographic
3003 .050 half hard (H14) Look for half sheets...

3003 .050 half hard (H14)
Look for half sheets or "drop" remnants.
Learn to anneal with an O/A torch or a Western air/propain weedburner.
Forum: Basic questions and answers 09-23-2018, 05:50 PM
Replies: 21
Views: 1,615
Posted By crystallographic
Hi Jaro, Maybe your "standardization annealing"...

Hi Jaro,
Maybe your "standardization annealing" = U.S. "normalization" ... ??


By the way, I know one one excellent Czech mechanic who does hydraulics, welding, fabrication, electrics. Nothing...
Forum: Basic questions and answers 09-22-2018, 04:35 PM
Replies: 13
Views: 888
Posted By crystallographic
No angles on uppers, Norm. The large design,...

No angles on uppers, Norm.
The large design, 49" - 39" -31" has uppers and lowers that rotate for doing spiral parts, long parts.


This is a prototype "jib sail" for a wind turbine.
48838
Forum: Basic questions and answers 09-21-2018, 07:49 PM
Replies: 13
Views: 888
Posted By crystallographic
Hi Jay, Flame-cut and welded makes for good...

Hi Jay,
Flame-cut and welded makes for good strong frames.


This is a prototype of ours:
48827


And this is our large design, being made at Columbia Helicopters, now.
Forum: Basic questions and answers 09-20-2018, 12:13 PM
Replies: 13
Views: 888
Posted By crystallographic
Shapes to practice

Hi Jay,
Having an assortment of geometries to practice is helpful:
48803
3003, .040 and .050, half hard or fully annealed

These were created by Howard Booster, a student of mine, in an effort...
Forum: Basic questions and answers 09-19-2018, 05:13 PM
Replies: 13
Views: 888
Posted By crystallographic
Hi Jay, Make sure your upper and lower rolls...

Hi Jay,
Make sure your upper and lower rolls are aligned:
48784
Not leaving tracks like this.


48785
But nice even tracks like this.
Forum: Basic questions and answers 09-19-2018, 04:24 PM
Replies: 8
Views: 412
Posted By crystallographic
The C4R is probably the best-looking of the...

The C4R is probably the best-looking of the Cunningham series of race cars. Looks like an accurate buck, to me.

One of the most functionally-designed race cars ever made, in my opinion. All...
Forum: Individual Classifieds 09-19-2018, 12:04 PM
Replies: 1
Views: 522
Posted By crystallographic
If that will cut .032 then it is a good machine...

If that will cut .032 then it is a good machine for the $$.
I suspect it is a 16ga machine, mild steel.

If it has the olde manual back gage then even better.
:)
Forum: Automotive Projects 09-14-2018, 03:43 PM
Replies: 187
Views: 71,034
Posted By crystallographic
Sweet results. Heard of a factory 327Chev...

Sweet results.
Heard of a factory 327Chev having two intake gaskets on one side, but never heard of two on both sides....
Some squishy gaskets work real good ....

Sorely missing the chat, the...
Forum: Introductions 09-13-2018, 01:20 PM
Replies: 7
Views: 363
Posted By crystallographic
Hey Rob, Welcome to the metal gang. Carpentry...

Hey Rob,
Welcome to the metal gang.
Carpentry ... rusty Brit stuff ... 16 ga anvil ... ratty old Bean shirt ...
yep, you fit right in.
Showing results 1 to 25 of 1960

 
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