My Daytona Coupe (cobra) scratch build

[BarryA]

Coming along nicely Mark.!

In my experience those lows and highs are going to be tough to get worked out on the wheel. Someone who is really in tune and been doing it for long may get there, but for the most part hand finishing is likely to be less frustrating (but it can still be pretty frustrating!!)
Off dolly work as Larry said to bring down highs, and you may even look at a ring type dolly - search "donut dolly" and check out the Youtube videos on it.
Heat shrinking too, although I am a long way from being proficient at this on ally...

[anders nørgaard]

Originally Posted by BarryA

Coming along nicely Mark.!

In my experience those lows and highs are going to be tough to get worked out on the wheel. Someone who is really in tune and been doing it for long may get there, but for the most part hand finishing is likely to be less frustrating (but it can still be pretty frustrating!!)
Off dolly work as Larry said to bring down highs, and you may even look at a ring type dolly - search "donut dolly" and check out the Youtube videos on it.
Heat shrinking too, although I am a long way from being proficient at this on ally...

I'll second that!

Here's the Donut Dolly thread

http://www.metalmeet.com/forum/showthread.php?t=8313

video links are in post #37

[Randy Ferguson]

Mark,

Any new updates??

Please give me a call.

[MAStuart]

I have been working on section of my roof panel. I have a question . I think I have the shape right and it might need a small amount of shrink along the outer edge by the winshield . Other than that it fits pretty good but it doesn't just sit on the buck perfectly. It Requires a small amount of force. I have a chunk of steel sitting on it . Probably weighs about 3 to 5 pounds. I assume this is an arrangement problem.......... So how do you make it relax so i dont have to force it to fit.

Fit by the windshield

DSCN3702.JPG

Fit from the side

DSCN3700.JPG


Fit from the back

DSCN3701.JPG

Mark

[anders nørgaard]

Originally Posted by MAStuart

I have been working on section of my roof panel. I have a question . I think I have the shape right and it might need a small amount of shrink along the outer edge by the winshield . Other than that it fits pretty good but it doesn't just sit on the buck perfectly. It Requires a small amount of force. I have a chunk of steel sitting on it . Probably weighs about 3 to 5 pounds. I assume this is an arrangement problem.......... So how do you make it relax so i dont have to force it to fit.

Mark

Looks good Mark!

It fits alright and there is no problem!

Remember the "Two Finger Rule"

IF you can hold a panel in the right position, just pushing with two fingers, the fit is good enough to weld it in. There's going to be some weld seam stretching anyway!!

[MAStuart]

Thanks Anders But what do you do if say you have a part and the FSP fits nice and tight but the part wont fit the buck. This would be an arrangement problem correct. What do you do when just trying to twist it around is just not enough. Mark

[anders nørgaard]

Originally Posted by MAStuart

Thanks Anders But what do you do if say you have a part and the FSP fits nice and tight but the part wont fit the buck. This would be an arrangement problem correct. What do you do when just trying to twist it around is just not enough. Mark

Ah Mark
I've had a couple of those panels in my "shaping life"
.. and I was unable to put them into arrangement (fit the buck) The panel was fighting back

Solution to the problem:

Give the panel a light wash over in the ewheel. Wheel the entire panel under light pressure to make the metal relax. Then you should be abe to easily put the panel into the proper arrangement.

Hope this makes sense

[MAStuart]

Thanks Anders It kind of makes sense...........But it might give me another chance to screw up more. I guess with more experience this will come easier. Here is an extreme example. FSP fits but not perfect yet. But not even close to fitting the buck without a lot of pressure.

Picture is middle part of the front fender.

DSCN3704.JPG

DSCN3703.JPG

Well I have to go and help Sara mow her mom's lawn and then go help a buddy do some fab work on an exhaust system. I will check back later Mark

[anders nørgaard]

Originally Posted by MAStuart

Thanks Anders It kind of makes sense...........But it might give me another chance to screw up more. I guess with more experience this will come easier. Here is an extreme example. FSP fits but not perfect yet. But not even close to fitting the buck without a lot of pressure.
...Well I have to go and help Sara mow her mom's lawn and then go help a buddy do some fab work on an exhaust system. I will check back later Mark

Good Mark I don't think you're gonna screw up anything. Wheeling the entire panel under light pressure, using the flattest possible lower anvil that will not change the SHAPE of the panel will make the pannel smoother and make it relax! I made a similar part for the '40 Ford rear fender. It fit the FSP, but I couldn't tweak it ino the right arrangement until I washed it over in the wheel and had it relax. THEN putting it into arangement was a piece of cake! The panel got REALLY soft!!

[hlfuzzball]

Here are some photos of the original buck for the Daytona Cobra:


http://www.flickr.com/photos/thehenr...7629078946882/

Hope they may be of help to you.