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Forum: Welding Sheet Metal 06-12-2019, 06:41 PM
Replies: 17
Views: 824
Posted By crystallographic
They were rusting in bare metal while stored in...

They were rusting in bare metal while stored in warehouses awaiting completion. Sad that they were already quietly rusting away when brandy-new. Maybe the earlier Mangustas fared better?
Forum: Automotive Projects 06-12-2019, 11:26 AM
Replies: 18
Views: 1,002
Posted By crystallographic
Very sweet job, Steve. Nice flows and lots of...

Very sweet job, Steve. Nice flows and lots of interest going in the details.
It should get a lot of attention when out on the road.
Great to see!
Forum: Welding Sheet Metal 06-11-2019, 02:59 PM
Replies: 17
Views: 824
Posted By crystallographic
Got a real hideous one. Custom. 53114

Got a real hideous one. Custom.


53114
Forum: Welding Sheet Metal 06-10-2019, 07:56 AM
Replies: 17
Views: 824
Posted By crystallographic
hmmf... Yer examples are very nice - and Not...

hmmf... Yer examples are very nice - and Not Easy.
I'm glad you joined the gang, "hack."
Out here in the West, "hack" is sorta like "schlock" and is considered less than "stellar." I'd be glad to...
Forum: Automotive Projects 06-08-2019, 06:09 PM
Replies: 7
Views: 375
Posted By crystallographic
James, that is nice tidy work - especially the...

James, that is nice tidy work - especially the corners. Good to see ----

and thanks !
Forum: General Discussion 06-06-2019, 12:19 PM
Replies: 11
Views: 542
Posted By crystallographic
At some point in a biped's life, sooner or later,...

At some point in a biped's life, sooner or later, perceived invincibility fades and is replaced by a sense of self-protection.
Bipeds are issued one each sets of hands, ears, and eyes.
Take good...
Forum: Welding Sheet Metal 06-06-2019, 12:05 PM
Replies: 30
Views: 1,419
Posted By crystallographic
BTW, "tig" rod = "gas" rod, unless it is a...

BTW, "tig" rod = "gas" rod, unless it is a particular alloy not given to gas welding.


I butt weld my aluminum rods together.... if the dia is over .063.
I just leave the short stump to go solid...
Forum: General Discussion 06-06-2019, 11:52 AM
Replies: 35
Views: 1,739
Posted By crystallographic
Only if you are using heat treatable aluminum -...

Only if you are using heat treatable aluminum - 6061, 2023, etc.
Otherwise the aluminum may only be hardened back up by working it.
This is a common problem with the old aluminum auto bodies (3003,...
Forum: Announcements 06-02-2019, 09:19 PM
Replies: 29
Views: 1,065
Posted By crystallographic
10 Years celebrating the joys of craftsmanship. ...

10 Years celebrating the joys of craftsmanship.
It's been very informative and it's been great to meet so many good folks.
Thank you!
Forum: General Discussion 06-02-2019, 09:04 PM
Replies: 35
Views: 1,739
Posted By crystallographic
Hi Robert, You have presented a good technique...

Hi Robert,
You have presented a good technique using the wood disc instead of the metal ones - which make much noise and mark the panels so badly - and which also separate and then go rolling around...
Forum: General Discussion 05-28-2019, 05:24 PM
Replies: 6
Views: 419
Posted By crystallographic
Safety should be important - over a few bucks...

Safety should be important - over a few bucks spent.
"A urethane" is not always "THE urethane" you are looking for.
"Just urethane" can be had from a hundred sources, and is a DIY deal, for sure....
Forum: Automotive Projects 05-28-2019, 03:14 PM
Replies: 5
Views: 712
Posted By crystallographic
Looks very nice and successful, John. ...

Looks very nice and successful, John.


(... conventional wisdom has frame extensions / replacements cut and welded on the 45 angle, btw, moving the active load on the weld from in-shear to...
Forum: Welding Sheet Metal 05-28-2019, 03:02 PM
Replies: 30
Views: 1,419
Posted By crystallographic
If you can't see, then you can't weld. ...

If you can't see, then you can't weld.


Bifocals, trifocals, multi-focal glasses are a complete waste of time, and effort - but a great source of frustration. So say a LOT of finally-successful...
Forum: Welding Sheet Metal 05-27-2019, 12:58 PM
Replies: 30
Views: 1,419
Posted By crystallographic
Richard, Your technique is looking better. Try...

Richard, Your technique is looking better.
Try working in 2-3inch stretches, then extend filler rod and go again.
Inner cone is a nickel thickness from the metal.
45deg angle is "average" but can...
Forum: Welding Sheet Metal 05-26-2019, 02:43 PM
Replies: 30
Views: 1,419
Posted By crystallographic
Set the flame "fat" and just below a growl. Metal...

Set the flame "fat" and just below a growl. Metal thickness = tip orifice.
Cone length = heat, so set cone length to 2 or 3 metal thicknesses.

Half a cone of feather, for the excess acet. This...
Forum: Welding Sheet Metal 05-25-2019, 10:13 PM
Replies: 30
Views: 1,419
Posted By crystallographic
Carbonation makes no difference - from many tests...

Carbonation makes no difference - from many tests I've done across the US.
(Pellegrino/Gerolsteiner also make good espresso.)
Forum: Welding Sheet Metal 05-25-2019, 08:17 PM
Replies: 30
Views: 1,419
Posted By crystallographic
Okay, good start. Now, keeping all elements the...

Okay, good start.
Now, keeping all elements the same, mix a fresh batch of flux with clean spring water - like a bottle from the store. (Not distilled.) (Not tap water.)
Forum: Basic questions and answers 05-25-2019, 04:05 PM
Replies: 19
Views: 1,069
Posted By crystallographic
Hi O.J. For "fail-safe" leadwork, the top guys...

Hi O.J.
For "fail-safe" leadwork, the top guys neutralize the flux acids after tinning and before applying the solder.
(BTW - I am Not a fan of paddling or spraying alloys at the 50-50 levels....
Forum: Basic questions and answers 05-21-2019, 02:35 PM
Replies: 5
Views: 856
Posted By crystallographic
Hi Bruce, Since the jobs vary with make, model...

Hi Bruce,
Since the jobs vary with make, model and year my "standard go-to" big roll of 5/32" workable tinned wire from 40 years ago is not always the correct diameter - so I have to source wire...
Forum: Basic questions and answers 05-20-2019, 12:11 PM
Replies: 19
Views: 1,069
Posted By crystallographic
Dan - Bill Funk knows the pinch weld seam...

Dan - Bill Funk knows the pinch weld seam problems, and what to do if "perfection" is your goal. (it is a lot of work, BTW.)



Bill - Yes, agreed - making a production item into something...
Forum: Basic questions and answers 05-19-2019, 10:55 PM
Replies: 19
Views: 1,069
Posted By crystallographic
Autobody soldering (lead work)

I've done a fair amount of autobody "lead work" but only with the old 30-70 or 40-60. Even now I have a Brents gun and 50lbs of 30-70 3/8" tri-bar.
I've never used the "lead-free."
I always do a...
Forum: Introductions 05-13-2019, 11:36 AM
Replies: 9
Views: 292
Posted By crystallographic
Nice consistent parts, Jason. Welcome. Back-up...

Nice consistent parts, Jason. Welcome.
Back-up flux and fusion are the best for stainless parts, if the fits are nice.
Paradise sure got flamed. A buddy of mine lost his resto shop and home there....
Forum: Individual Classifieds 05-10-2019, 01:11 PM
Replies: 2
Views: 538
Posted By crystallographic
Hi John, I know these old hammers keep going...

Hi John,
I know these old hammers keep going and going, and that if they rust up tight they can be freed up with penetrant and then run some more.
However, at some point in the long (abused) life...
Forum: General Discussion 05-06-2019, 01:39 PM
Replies: 4
Views: 419
Posted By crystallographic
Scott, Yes, Cessnas after about 1957 used...

Scott,
Yes, Cessnas after about 1957 used 2024T3 on most if not all external skins.
Yes, it is hard to work.
Heat, used sparingly, helps, and finesse is the big technique. No wham bam slam. It is...
Forum: Automotive Projects 05-06-2019, 01:28 PM
Replies: 30
Views: 2,408
Posted By crystallographic
That job is quite lovely.

That job is quite lovely.
Showing results 1 to 25 of 2177

 
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