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Salt Flats Roadster

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Salt Flats Roadster

Post by dpride on Fri 26 Jul 2013, 2:17 pm

I have started on a new project while I'm waiting for the industry I work in to start again. I have already completed 80% of a Fiat fuel coupe but will have to wait a while to justify spending on materials to finish that project. I have the mold for the small block chevy and made all the masters for a Potvin blown version of a 1960's Bonneville car. It is based on a 27 T roadster body with a streamlined nose section. I have yet to make the masters for the Halibrand vintage LSR wheels. I will probably do a 3D model and print one of each for molds. The pics show the engine block, Potvin blower setup, and the Muncie trans.











I'll post more as it progresses.
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Re: Salt Flats Roadster

Post by Tubman on Fri 26 Jul 2013, 3:18 pm

Holy crap, that's awesome, you make it look so easy but I'm sure it's not.
I was just posing the question of 3D printing on my Facebook page last night, would love to get some wheels done but wouldn't know where to start.
Look forward to seeing more of this thing.
Cheers
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Re: Salt Flats Roadster

Post by allan on Fri 26 Jul 2013, 7:39 pm

That's a cool roadster body so it the engine parts too.
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Re: Salt Flats Roadster

Post by zenrat on Fri 26 Jul 2013, 10:12 pm

Why can't i use those tools on a 1/25?  I have been known to put on so much filler I need a surform to take it down...

You sir, are nuts.
Can't wait to see more.

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Re: Salt Flats Roadster

Post by DeeCee on Fri 26 Jul 2013, 10:20 pm

That's some brilliant work mate, a credit to you for sure, will be watching this one till the end.Magnifico
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Re: Salt Flats Roadster

Post by mgy125 on Sat 27 Jul 2013, 8:06 am

Love the look of this project and where you are headed with it.
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Re: Salt Flats Roadster

Post by dpride on Sat 27 Jul 2013, 9:57 am

Thank you all for the comments.
Kirk; what scale wheels are you wanting to have printed and do you have a file for them?
I use various printers depending on what type of part and the finish required. Lately I have been doing a trade for all the detail parts that are difficult to make. I do file repair work or generate 3D models and get printing in return.
Here is a pic of the printed parts. They are all 16 micron resolution. The prints are more accurate than hand made masters. The letters are a killer to do by hand. The rocker cover and moon pedal will be cast in pewter for both the dragster and the roadster. The vintage Avon tire is for the dragster and will be cast in black flexible urethane.

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Re: Salt Flats Roadster

Post by Tubman on Sat 27 Jul 2013, 11:15 am

Those parts are spectacular.
I got nothing but a picture of what I want which I guess makes it a little bit harder Laughing wouldn't even know where to start getting the information. I know who makes them and what they are called but that's about it.
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Re: Salt Flats Roadster

Post by dpride on Sun 28 Jul 2013, 6:12 pm

I have made a 3D model of the rear Halibrand style wheels. I've decided to get a master printed because the finish will be a "sand cast" look rather than polished. I found a Firestone tire ashtray at a swap meet that has the right letters so I can mold the wall and transfer the logo onto a tire I've turned up.

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Re: Salt Flats Roadster

Post by blatdriver on Mon 29 Jul 2013, 10:07 am

wowwee That is awesome work, the car is going to look sweet, I'd love to know more about the 3D printing process, do you know of any websites I could have a look at please?
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Re: Salt Flats Roadster

Post by dpride on Mon 29 Jul 2013, 1:31 pm

Thank you for commenting.
The best way to get an overview on 3D printing is to look on YouTube.
I model all my mechanical parts in Solidworks, export an STL file and send it to the printers.
All the detailed parts are printed at 16 micron resolution and I still have to work on almost all the parts to smooth some areas. I use a German company to do most of the fine work as I trade CAD and file repair work for printing time. If you need top quality prints it's going to cost a lot. If you will settle for that "stack O plywood" look then the cheaper printers will give a result that is only marginally better than a cake icing bag.
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Re: Salt Flats Roadster

Post by blatdriver on Mon 29 Jul 2013, 3:03 pm

Thanks for the info bigthumbsup 
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Re: Salt Flats Roadster

Post by dpride on Fri 09 Aug 2013, 5:47 pm

A little more work on the engine bits, all the ident letters and numbers done in "Slaters" model railways plastic letters.
 Ranging from 1.5 mm to 3 mm. Pics of Muncie trans and Potvin outlet side.
Also made the Hilborn type injector out of PVC electrical conduit, heat formed with a candle and piece of wood.





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Re: Salt Flats Roadster

Post by blatdriver on Fri 09 Aug 2013, 8:22 pm

wowwee 
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Re: Salt Flats Roadster

Post by dpride on Mon 12 Aug 2013, 6:02 pm

A couple more parts lettered. These model train letters are great for large scale stuff.
I would not like to try to detail 25th scale components in the same way.... you
would need a microscope.


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Re: Salt Flats Roadster

Post by allan on Tue 13 Aug 2013, 7:07 pm

This is going to be one cool Hot Rod once built  Cool
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Re: Salt Flats Roadster

Post by dpride on Wed 14 Aug 2013, 7:41 am

I don't know if anyone would ever notice, but in the previous photo of the manifold, I had the Potvin logo upside-down.
I have now fixed that.  Rolling Eyes
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Re: Salt Flats Roadster

Post by mgy125 on Wed 14 Aug 2013, 8:49 am

True confessions...I hadn't noticed.
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Re: Salt Flats Roadster

Post by dpride on Wed 21 Aug 2013, 6:26 pm

Some progress pictures of the engine.









I have also made most of the small pieces, fuel fittings, spark plugs, linkages etc.
More soon.
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Re: Salt Flats Roadster

Post by Bernard Kron on Wed 21 Aug 2013, 9:33 pm

Thanx for sharing this with us. I'm enjoying this tremendously. Despite the fact that it's unlikely I'll attempt things of this sort I find it very stimulating and inspirational. Your work is superb and I love the fact that you are going to the trouble to include all the little casting details like the maker's brand, parts numbers, etc. I'm also a big fan of the 27 T roadster body style so it's always great to see one being done (especially a correctly done lakes style ride like this one).

I have been in contact with a fellow here in Seattle who has been attempting to model using 3-D printing down in the 1/25th scale range. He is in the the surveying business and has a very large scale 3-D scanner (he can actually do scans of whole hillsides and geographic features which he provides to architectural firms). Needless to say he has the capability of scanning "smaller" objects such as automobile frames, engine parts, whole bodies, etc. He is quite good at the scanning part and at translating them into working 3-D models. The challenge has been in finding printing media that is high in resolution to allow for small scale parts and the detail they require. He has done a 1/25th hydraulic floor jack from 3-D files he generated that actually has rolling wheels and a working "pump" and lever! But at these scales graininess and fragility remain a problem.

Looking forward to more, more, more...!
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Re: Salt Flats Roadster

Post by dpride on Thu 22 Aug 2013, 6:09 pm

Bernard, thanks for the kind comments. I've worked a lot with scanned material, mostly in the film industry.
The biggest problem for me, up until recently, was the roughness of the tessellated scan data. Now the latest Zbrush (program) has the ability to quickly retopologise the mesh so edges are defined. We are still, for the most part, limited to 16 micron print layers.
......just go up to 1/8 scale and that resolution will be acceptable in most cases. Smile
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Re: Salt Flats Roadster

Post by Bernard Kron on Thu 22 Aug 2013, 11:32 pm

Given our experience over the decades, materials and output resolutions seem like familiar territory that will be overcome in due course. Small mechanical parts and machines produced in limited quantities should drive this trend while as a modeler I expect to benefit from it eventually. My friend showed me some quite small, hollow pieces printed in a metal matrix that were certainly no rougher than a high quallity bronze casting. With technology, as with most things, results come more slowly than you wish them too, but sooner than you land up expecting...

In the meantime keep this Big Salty comin'!
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Re: Salt Flats Roadster

Post by dpride on Wed 28 Aug 2013, 5:07 pm

A few more parts, fuel shutoff valve and right angle mag drive.
I want to keep the height as low as possible.



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Re: Salt Flats Roadster

Post by DeeCee on Wed 28 Aug 2013, 6:05 pm

If this thing don't run when its finished, your probably using the wrong fuel, coz that would be the only thing stopping it! 
Incredible work mate.
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Re: Salt Flats Roadster

Post by micsmav on Thu 29 Aug 2013, 6:24 am

wowwee Absolutely outstanding ! I dont normally look in here and I'm glad I dont after seeing the level of workmanship . Jesus louise , Outstanding seems inappropriate !
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Re: Salt Flats Roadster

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