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Old 04-03-2021, 07:59 AM
jcarpenter jcarpenter is offline
Join Date: Mar 2010
Location: Westminster MD
Posts: 61
Default Newbie built buck

Newbie trying to learn metalshaping. Tried to fabricate metal fish but don't have the skill set for that .....yet. No project car and no room for it so thought to try a scaled model of a car. Something simple and organic. This is my effort to build a scaled model buck of a sprint car to use to learn metalshaping skills As much computer and CNC as possible used as I have that skill set and tools.

b) Edelbrock_Speedcar_1949.jpg
This is the sprint car model I wanted to make into a buck

c) Blender blueprints.jpg
I use the 3D modeling program Blender 2.8. It is powerful and free. The sprint pictures were cut up into front, back, side and top views and placed, scaled, and aligned in the Blender program.

d) Blender Sprint car model.jpg
The model was formed around the pictures. This is a simple block modeling approach as I am still learning the software. Once the model was good enough to use it was exported as an STL file to Fusion 360 Slicer.

e) Fusion 360 Slicer Buck.jpg
F360 Slicer is a free stand alone Buck design program that can be integrated with Fusion 360. There are endless choices in F360 Slicer but if you keep it simple a decent output can be obtained. Fusion 360 is not required

f) Slicer DXF Buck Patterns.jpg
Once the buck model looks ok in Fusion 360 Slicer, DXF images of the buck patterns are produced and saved for use in VCarve Pro, a CAM program for CNC routers.

g) VCarve Pro Long toolpaths.jpg
h) VCarve Pro Short toolpaths.jpg
The dxf buck files are used by VCarve PRO (definitely not free) to nest the patterns and generate tool paths for the CNC router.

i) CNC Routing frames.jpg
The frames are cut out on a 4x8 cnc router

l) Assembling.jpg
After a bit of trial and error the cut frames are a really good fit and slide together.

a) Half scale sprint car buck.jpg
Scale model buck and some nose and tail end pieces for off buck shaping. Some tweaking and fairing needs to be done. So far it is cheaper than a project car.

Now to try and fit some metal to the shape!
John C
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Old 04-03-2021, 09:04 AM
dwmh dwmh is offline
MetalShaper of the Month May 2018, July 2022
Join Date: Aug 2015
Location: Nr Oxford UK
Posts: 531

You have made a great start. It should keep you out of mischief for a while.
David Hamer
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Old 04-03-2021, 10:18 AM
James Bowler James Bowler is offline
Join Date: Apr 2010
Location: Richmond Va
Posts: 203

That is a pretty good approach to building a car ,I am sure it can be done with any basic car drawing , Good job .

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Old 04-03-2021, 11:59 AM
jcarpenter jcarpenter is offline
Join Date: Mar 2010
Location: Westminster MD
Posts: 61

Thanks dwmh and James. I already know from doing the fairing and playing with some paper patterns that there are too many large flat spots and the body needs to be more of a round tube than a rounded corner rectangle. I'll make another one after I have played with this one for a while.
John C
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Old 04-03-2021, 05:36 PM
Kerry Pinkerton's Avatar
Kerry Pinkerton Kerry Pinkerton is offline
Join Date: May 2009
Location: Near Huntsville, Alabama. Just south of the Tennessee line off I65
Posts: 8,144

John, that is a really nice start. Your result will be better having a buck to align to as you shape the subpanels.

CHeck your Private Messages.
Kerry Pinkerton
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Old 04-05-2021, 05:14 AM
Gojeep's Avatar
Gojeep Gojeep is offline
MetalShaper of the Month March 2015, March 2020,, June 2022
Join Date: Nov 2013
Location: Eastern Melbourne, Australia
Posts: 2,684

So great how it can be done now a days.
aka. Gojeep
Victoria, Australia

Invention is a combination of brains and materials.
The more brains you use, the less materials you need.
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