Cadflat Bead Roller Project.

Got rust? Seats, panels, doors, windows, etc. The old messages from the NPCA 'Body & Interior' category are here.

Postby r1lark » Wed Dec 25, 2019 8:27 am

Merry Christmas to you also oddbod, and prayers for a speedy recovery in the New Year from your CFS!
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Postby RiverPatrol » Wed Dec 25, 2019 9:17 am

Best wishes for you and your for Christmas in into the New Year. Take it slow and easy with the CFS, that's a tough one to beat but you'll get there eventually.
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Postby Oddbod » Tue Feb 11, 2020 12:55 am

Well folks, I can now see the light at the end of the tunnel with this CFS.
It has been a challenge to say the least, but have been looking a round the forum on good days.
The good news is that I have also spent my time wisely and discovered a different style hinge which I decided to try after many mock ups of the original hinge I made with no success.

When I say no success, I really mean not enough improvement for it to work without scraping or binding.
The alternative hinge I plan to use was discovered quite by accident and had been under my arm all this time as it is being used in a console to the side of my TV chair. I rarely open it but was looking for the lost remote controller and opened the lid and the penny dropped.

I thought that discovery was going to be too easy, if it worked.
I took the pair off my console much to my wife's disgust and installed them and made new mounting brackets.
I could not be that lucky of course as they did not work either, but I could see their potential and have started modifying them to see if I could get them to move slightly differently and that is where I am right now.
If this fails I will definitely walk away from the idea of a firewall hinge.

Stay posted... :shhh:
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Postby Oddbod » Tue Feb 11, 2020 6:05 pm

Here is a picture of the hinge I plan to use/modify now.
Since it had no brand name etc on it, I thought I'd never find any information about it.
However the power of the internet and the right choice of search words finally provided me with this picture which is identical to what I had in my console.
I still don't know who makes them or where they are made, but I did end finding a supplier/agent who has them in stock.
They are mainly used in caravans and RV's as a hinge for a bench seat that has a lift up lid that has a storage compartment below it.
No need buy a pair for now until I am sure they will or wont work as required. :?:
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Postby Oddbod » Sat Feb 15, 2020 11:40 pm

I have started moving forward once more with this hood project and decided to make new hinge pockets which have been welded in, plus set the front lock down pin mechanism in place to set the position of the hood with respect to the engine bay opening.

So far so good and then I will fabricate my modified hinges out of mild steel (prototype) that look to be capable of clearing my firewall.
One needs the patience of Solomon on this project... :)
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Postby Oddbod » Sun Feb 16, 2020 8:14 pm

I have now made a card board mock up of the basic hinge principle and allowed extra length of arms and the option to re-position pivot points.

As you can see by the number of puncture points in the card board I have just about turned it into Swiss cheese. :lol:

Each time I felt that the pivot points were close to what I sought, I graphed the swing and marked hood angle at specific points.

I have now chosen what I feel is the best possible scenario of pivot points and arm lengths.

Next step is to replicate them in steel and mount them onto the car and see once the hood is attached whether it really does clear and work as anticipated. :?:
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Postby Esteban » Mon Feb 17, 2020 9:37 am

Oddbod wrote:I have now made a card board mock up of the basic hinge principle and allowed extra length of arms and the option to re-position pivot points.

As you can see by the number of puncture points in the card board I have just about turned it into Swiss cheese. :lol:

Each time I felt that the pivot points were close to what I sought, I graphed the swing and marked hood angle at specific points....


I think you're on the right track with this setup, and the way you're marking the trajectory of the pivot points. I was going to suggest something in that nature -before looking carefully at your pictures- that once I faced fabricating some folding wooden chairs. It was a simple metal bracket with two pivot points that had to allow the chair to be folded, and also support it when it was fully open. Marking the trajectory allowed me to find the intersection point of the two circles (open and closed) and locate the pivot point. Obviously 100 times less complicated that what you're doing now, but on the same principle.

Sometimes I wonder how the little details (or so we thought) can complicate or project and derail us. You've showed us that this project is probably equal parts of love and patience! :clap: :clap: :clap:

Waiting for the next installment. This is like brain food.
Owner of the same Patrol since 1967
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Postby Oddbod » Mon Feb 17, 2020 9:20 pm

Thanks for your kind words Esteban.
Yes progress can be slow and frustrating at times.
After completing this graphing, I believe I have theoretically at least arrived at my EUREKA moment, but will not be satisfied until the modified hinge is replicated in cold hard steel...

Just for the sake of the record, attached is a pic of my final cardboard pivot points.
You will note;
Blue A - is the marked trajectories at various stages of movement. Important to success of this hinge was to keep the left hand end of the hood attachment point lifting and rising to clear the firewall edge. So too much lift at the RHS would cause the LHS tail edge to drag on the firewall.
Green B - are the new chosen pivot point when compared to the original hinge.
Pink C - are the location of the original hinge pivot points.
Orange D - is the perimeter shape of the original hinge base plate.
Yellow E - indicates a larger base plate size is required to the modified hinge for attaching one of the new pivot points.
Purple F - is a hole in the cardboard used to place a pencil lead into and scribe the arc of each selection of pivot points.

So the original hinge arc was scribed first as the base which I knew was not workable and then each additional point was scribe to compare any improvement against the original arc and that of its trajectories. At the point of the full BLUE line the hood attachment bracket needs to be as flat as possible as it lifts.
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Postby Oddbod » Fri Feb 21, 2020 7:08 am

Well my friends, I am pleased to report that the new hinge works and the hood clears, so let the party begin...
I am totally over the moon with this result.
So high 5's all round I guess.

There is still a lot of fiddly work ahead, but it kinder means more now, that I know it will work and anything I do now will be worth the effort.

I guess the hinge pic and its mounting is self explanatory for you.
It is odd but it works and not as pretty as my first choice.
Pretty is a bit like BS, it only gets you so far...
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Postby RiverPatrol » Fri Feb 21, 2020 9:58 am

Congratulations!!! That's fabulous! :clap: :clap: :clap:

I live in a city that is big on classic cars. Once a year - coming up next month actually - they shut down the town and have a huge car show. They've been doing this for decades. I go occasionally to check out the cars, it gets a little boring after the 12th '57 Chevy or '64 Mustang though. But I know I've looked under a hood and seen something similar to this, and wondered "What the...?" Now I know.
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Postby Oddbod » Mon Feb 24, 2020 12:54 am

I am just so pleased to over this hurdle and able to move forward again.

Next step is to get the lock down latch completed and install a safety latch as per normal car hood.

Then scribe the front and rear edges to produce a consistent gap between hood and body.

I looking forward to cutting the opening and pressing the outer skin and fitting the two together.

Do doubt with my luck there will be some additional hurdles but who cares now, I can see the light in the end of the tunnel...

About your city, I have been there once a ways back and have a guy on another Forum who I plan to catch up with he has a 1959 F100 and I own a similar vehicle which I have done a lot of work on.
Maybe when I am in your neck of the woods we could get a hand shake in also.
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Postby RiverPatrol » Mon Feb 24, 2020 10:11 am

Oddbod wrote:About your city, I have been there once a ways back and have a guy on another Forum who I plan to catch up with he has a 1959 F100 and I own a similar vehicle which I have done a lot of work on.
Maybe when I am in your neck of the woods we could get a hand shake in also.


It would be an honor.
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Postby Oddbod » Tue Feb 25, 2020 11:16 pm

Like wise amigo.
As soon as it is safe to travel I will be planning a trip over.
Right now both exchange rate and virus pose concerns for me and any travelling.
It seems like this virus thing is going to get much worse before it gets better.

I feel some countries have a poor culture and attitude towards compliance and some Govt's also are poor managers during these times which if so will let the rest of the global community down badly.

I read where they were saying that animals that had been used for experiment purposes in the bio chemical facility in Wuhan were being taken when finished with by staff down to the local market and sold them as a side line business.

Others say that the drop dead virus got out and the corona virus was released to cover up the accident release of the drop dead virus.
We have not seen any cases of the drop dead virus outside China.
Which makes things all the more curious.

I am not trying to start a debate here, but felt a need to express what I have picked up.
All I can say is stock up on provisions and keep some cash at home just in case...
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Postby Oddbod » Fri Mar 06, 2020 11:28 pm

Dear friends and fellow Forum members interested in my project pursuits, I am sorry for the delays in posting progress, but progress has been slow.
I do have some more material to post soon, I am held up again by my laser cutting guy as you may recall this happened previously.
Any way stay posted as I will have fresh up to date pic's very soon. :oops: :oops: :oops:

In the meantime, as you may be aware I have a number of YouTube videos listed and some of which have been well accepted.
I do not derive any payment or income from these but do like to see them front and center so that they are easily accessed by interested folks.

If you care to see what I am talking about you can just GOOGLE the following. Cadflat Video Series

Once there, you can click on any of the 5 videos I have up loaded and I would ask that you kindly hit the SUBCRIBE button on one or all of them.

By subscribing it helps keep these videos front and center which from my point of view would be very helpful to the cause.

If you do feel inclined to support this request, then I thank you very much indeed.

Your support is what provides me with the motivation to keep finding topics of interest to post... :D :D :D
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Postby Oddbod » Mon Apr 13, 2020 9:10 pm

Well, I now have my new stainless steel laser cut hinge components and I have assembled them.
I still have some finish welding to do but for the sake of showing them here is what we have.

One pic is of the prototype (with spring attached) and the other of the stainless hinge still requiring the spring.

I am now in the process of trying to get the inner and outer skins to match up ready for attaching them to form one unit.
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