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Forum: Welding Sheet Metal 04-25-2019, 05:17 PM
Replies: 18
Views: 9,049
Posted By crystallographic
Yeah, my bottle sits too. 1982 vintage. I use a...

Yeah, my bottle sits too. 1982 vintage.
I use a belt sander. (No grooves are left behind by the previous Cro Magnon that way.)
Forum: Introductions 04-25-2019, 05:09 PM
Replies: 6
Views: 67
Posted By crystallographic
Hi John, Welcome to the metal gang. ...

Hi John,
Welcome to the metal gang.
Sheetmetal parts are graded on finish as "paint grade," "plating grade" and "polished."
I've seen some awesome beautiful delicately-filed paint-grade work (V12...
Forum: Basic questions and answers 04-24-2019, 02:00 PM
Replies: 3
Views: 177
Posted By crystallographic
In the old days we had to specify CRS by...

In the old days we had to specify CRS by hardness, and the soft one was called "rim steel."
Then later it was AK.
And now most of the suppliers have softer grades of CRS that are more akin to the...
Forum: Automotive Projects 04-22-2019, 12:52 PM
Replies: 88
Views: 23,312
Posted By crystallographic
Hi Bernhard, It was a big joy for me to see...

Hi Bernhard,
It was a big joy for me to see your work honored so.
Welcome home, Happy Easter, love your work, keep going, and hope you get to visit Onorius in RO. Much joy and success,
Forum: General Discussion 04-19-2019, 11:05 AM
Replies: 4
Views: 273
Posted By crystallographic
5000 in general, because of the Mg.

5000 in general, because of the Mg.
Forum: General Discussion 04-19-2019, 11:01 AM
Replies: 59
Views: 21,125
Posted By crystallographic
Beech Staggerwing, Jim Younkin, thumbnail dies

Yes, I got it to lay down nicely all over. One piece, like orig. Got lucky early on when I started in the right areas.


I got Jim to try our thumbnail shrink dies in 1995 - he was hand-rolling...
Forum: Individual Classifieds 04-17-2019, 05:13 PM
Replies: 12
Views: 2,738
Posted By crystallographic
I remember back when Marcel got that first one...

I remember back when Marcel got that first one and was saying how different it was, and how he was working to get a better understanding of it.
Forum: General Discussion 04-17-2019, 11:33 AM
Replies: 4
Views: 273
Posted By crystallographic
Hi Chris, I know your problem and will set up a...

Hi Chris,
I know your problem and will set up a demo for you so you can see - 5052 is the hardest aluminum alloy to flame anneal because of the temp sensitivity - and you don't want to mess it up!!!!
Forum: Introductions 04-16-2019, 11:29 AM
Replies: 4
Views: 109
Posted By crystallographic
Welcome to the metal gang, Jim. Is Starvin...

Welcome to the metal gang, Jim.
Is Starvin Marvin still going over in Wadsworth?
Forum: General Discussion 04-15-2019, 01:03 PM
Replies: 59
Views: 21,125
Posted By crystallographic
"Thank you!" to all you guys, Charlie, David,...

"Thank you!" to all you guys, Charlie, David, Marc, Peter, and Steve.


My first reverse was, I think I was a 3rd year apprentice, when I had to make a tail section of a Bugatti Atalante front...
Forum: General Discussion 04-13-2019, 01:20 PM
Replies: 59
Views: 21,125
Posted By crystallographic
Thanks Marcus - That one was done just to push...

Thanks Marcus - That one was done just to push the envelope with some new Hammer dies.
(You would appreciate that I started with a 16X16 square of .063" 3003, and smooshed it out to 24" per side at...
Forum: General Discussion 04-12-2019, 05:34 PM
Replies: 59
Views: 21,125
Posted By crystallographic
52346 52347 52348 52349

52346
52347
52348
52349
Forum: General Discussion 04-12-2019, 02:07 PM
Replies: 5
Views: 392
Posted By crystallographic
Lessee: finger button - check. soft rubber...

Lessee:
finger button - check.
soft rubber palm cap - check
wide variety of tooling, including polymers, leather, etc. - check
complete air control - check
1.0lb weight - check

the color was...
Forum: General Discussion 04-11-2019, 02:14 PM
Replies: 5
Views: 392
Posted By crystallographic
I used a similar tool called a "palm nailer" some...

I used a similar tool called a "palm nailer" some dozen years ago. With a leather hand cushion, an air control, and some good tooling it went along pretty well. I imagined then that someone could...
Forum: Automotive Projects 04-08-2019, 12:11 PM
Replies: 3
Views: 548
Posted By crystallographic
Agreed: "A lot of spackle and some paint, ...

Agreed:
"A lot of spackle and some paint,
makes 'em look like what they ain't."

- old metal man expression - 1950's.
Forum: General Discussion 04-05-2019, 11:34 AM
Replies: 59
Views: 21,125
Posted By crystallographic
Hi Fred, That whole development started from a...

Hi Fred,
That whole development started from a clear concept, and then evolved through three iterations into production. Yes, vertical hard pin slides in slot. Clearance is enough to allow sliding...
Forum: General Discussion 04-04-2019, 12:01 PM
Replies: 59
Views: 21,125
Posted By crystallographic
I'd give it a try - use a 5x gun and a heavy...

I'd give it a try - use a 5x gun and a heavy dolly...
Forum: Automotive Projects 04-01-2019, 11:32 AM
Replies: 23
Views: 1,207
Posted By crystallographic
Thanks Mike. Yes, Paul is doing a great job on...

Thanks Mike.
Yes, Paul is doing a great job on this shell.
At one time I had 3 metal spinners on call, making parts for my lamp resto work. Now I am lucky to find one in 200 miles that can do...
Forum: Automotive Projects 03-30-2019, 03:31 PM
Replies: 925
Views: 394,016
Posted By crystallographic
Marcus, You have a very good handle on...

Marcus,
You have a very good handle on shrinking the steel flat surface !
I have an old LencoSpot that makes a bunch of real consistent little hot spots for hot shrinks. And the panel sure stays...
Forum: Basic questions and answers 03-29-2019, 01:02 PM
Replies: 40
Views: 1,979
Posted By crystallographic
Hi Rob, What you see is normal, as the metal...

Hi Rob,
What you see is normal, as the metal flows into a new shape dragging the lines along with it.
After you get your part to good shape and fit - then smooth it out.
Trim the edge so it lays...
Forum: Basic questions and answers 03-27-2019, 04:23 PM
Replies: 16
Views: 1,195
Posted By crystallographic
shaping

Yo Cliff,
So you are saying that there are design differences between sheet metal "shaping" hammers ....

and sheet metal "smoothing, planishing, finishing, and fitting" hammers....
If so, very...
Forum: Automotive Projects 03-26-2019, 08:19 PM
Replies: 23
Views: 1,207
Posted By crystallographic
Thank you, Paul. ;) In mm these were .7 - .8...

Thank you, Paul. ;)
In mm these were .7 - .8 when new. They were .4 in places when I got them straight for 1st copper.
I like silver soft solder and silver hard for repairs. 55% is a fave, at high...
Forum: Automotive Projects 03-25-2019, 03:58 PM
Replies: 23
Views: 1,207
Posted By crystallographic
brass repair for plating

Hi Paul,
Yes, after copper I can sand with 320, 400, 600 or 800.
With 600 or finer, I can work the nickel coat, before chrome.
I like to have zero buffer marks.
51990
1937 (Mussolini-era)...
Forum: Automotive Projects 03-23-2019, 03:03 PM
Replies: 23
Views: 1,207
Posted By crystallographic
Hi Paul, I love seeing your nice brass working....

Hi Paul,
I love seeing your nice brass working. Patient attention to the details.
I am seeing your run-on/off tab - sure is nice for avoiding melt-backs on the edges. :)
Yes, making files is part...
Forum: Basic questions and answers 03-22-2019, 12:07 PM
Replies: 46
Views: 8,846
Posted By crystallographic
I think you summed it up perfectly, Bob. Thank...

I think you summed it up perfectly, Bob.
Thank you!
Showing results 1 to 25 of 2150

 
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