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Scale 4x2 and Buggy R/C vehicles This is the place to put your Sand Scorchers, Bajas and other various 2wd offroad R/C's


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  #1  
Old 06-01-2016, 11:10 AM
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Junkyard Stance Junkyard Stance is offline
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Default The Junkyard Stance Sand Scorcher Build

Hi All

My first published build !

I've chosen this forum as it's been a source of inspiration and amazement over the past few years, massive respect to so many of the contributors here - Here's my offering !

I've chosen Tamiya's re-released Sand Scorcher as my start point,,,

So - to get from here:

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To here:

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Definitely use this:

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And if you like these:

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You're gonna love it !

Here's a couple of the stock running gear:

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And with it's blank shell:

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For me, this is where the fun now begins !

So, first up, I think this project needs a unique set of rims to sit on while the build progresses,,,

Last edited by Junkyard Stance : 06-02-2016 at 06:55 AM.
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  #2  
Old 06-02-2016, 09:53 AM
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Default First 3D print prototype - the Rims,,,

I work in the 3D industry as a VFX artist - So the possibilities opened up by 3D printing RC parts - combining two of my favorite pastimes - got me thinking,,, custom Sand Scorcher

For my prototype wheels I plan to follow the classic Tamiya three part design, but go for a wider track, both front and rear, without the need for spacers or special wheel nuts

By shifting the off-set to the maximize the front and rear track , I've gained 18mm on the rear and 6mm on the fronts, here's the plan:

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Rendered out, here's my ten spoke designs, for the Rear:

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And the fronts

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This build is presently slightly ahead of the photos, so without delay -

My first Junkyard Stance Sand Scorcher parts from Shapeways

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The rears, unpacked:

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A close up - the white printed nylon is hard to photo -

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And I couldn't wait, had to check the rear tire fit, and photograph

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  #3  
Old 06-02-2016, 12:18 PM
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Default Rear track comparison

Here's a comparison from the back between my wheels and the stock items:

Standard wheels:

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My Junkyard Stance rear rims:

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The nylon print material looks a whole lot better once a couple of coats of primer go on:

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And for now I shall be using M2 cap heads, 10mm for the rear :

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And for the fronts, 6mm or 8mm M2 cap heads

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I'm quite pleased with the initial results, (but I'm already tweaking the design!)

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Here's both the front and rears in primer:

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  #4  
Old 06-02-2016, 12:29 PM
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Default Junkyard Stance 10 spoke rims, test fitting

All the holes that were included in my 3D designs for the wheels are just "pilot" holes - I figure it's better to have a slight too snug a fit, that can be gently enlarged with the correct drill bit.

To fit on the Scorcher, the center holes were carefully enlarged with first a 4mm. then a 5mm bit, to get a good fit to the size of the rear axles

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A coat of metallic acrylic paint, and they are on the build for a test fit:

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A detail of the front:

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And the rear:

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  #5  
Old 06-02-2016, 01:59 PM
marzo marzo is offline
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Default

great work!
(but now is much large..!!)

.
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  #6  
Old 06-03-2016, 03:55 AM
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Quote:
Originally Posted by marzo View Post
great work!
(but now is much large..!!)

.
Hi, Thanks marzo !
Plenty more to come,,,
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  #7  
Old 06-03-2016, 04:07 AM
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Default Old School Sun Visor

One of the best aspects of a custom Sand Scorcher build is the 60+ years of inspiration to be had from all the cool 1:1 Beetles out there.

So next up, a retro sun visor for the windscreen, here's my plans:

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And on the 3D model:

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Here's the first test print:

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The brackets are attached on the inside in a simple "tree" arrangement, which also helped the part stay upright in the print process:

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Which needed trimming off before use:

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Here's a test fit on the unpainted shell:

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And in black primer:

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  #8  
Old 06-03-2016, 04:31 AM
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Default Junkyard Stance, Spot lights and roof mount

On a custom Scorcher you got to have a set of roof mounted spot lights.

While we're on the subject of lights - IMHO it's a shame Tamiya didn't build the 2010 Sand Scorcher re-release with fitting points for 3mm or 5mm LEDs for the front and rear lights, something I'm planning to add into this build in due course.

Here's plans for my roof mounted spots, with roll-cage ( with room for 3mm LEDs ):

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And how it should fit on the Scorcher:

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And the first test print:

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Inside, there's a clear acrylic part for the spot light glass - my first go with a material other than the white nylon:

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However, I've decided that for future designs, unless the part-tree is very simple, like with the "glass", I will be printing parts separately:

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Trimming the tree into the required bits was not to my liking:

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So, I reprint the 5 nylon parts individually, first the roll-cage mount:

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then the four LED holders/spot lamps:

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Here's a close up of the assembled part before painting:

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Last edited by Junkyard Stance : 06-03-2016 at 05:07 AM. Reason: spelling
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  #9  
Old 06-03-2016, 04:46 AM
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Default Junkyard Stance, sun visor, roof mount roll-cage and spot lighths

Here's both the spots and sun visor during a test fit:

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and off for spraying in black priner:

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The back of the spot light holds the clear acrylic part in place, and has pilot holes to open out and fix with a 5 or 6mm M2 screw

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I next took the bold step of drilling 12 holes through the body work ( and inner glass ) to permanently fit both the sun visor, and spot lights

I got them very nearly straight !

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  #10  
Old 06-03-2016, 04:54 AM
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Default Junkyard Stance Sand Scorcher, so far so good

From time to time, you got to sit back and take stock of the work so far,

Still liking my 10 spoke rims, and my roof adornments have worked out better than expected - though there were a few re-prints while I've refined the 3D model of the Sand Scorcher that I was building on to.

As I go forward parts should fit better as my model becomes more accurate to the real Tamiya shell,,

The build so far:

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  #11  
Old 06-03-2016, 10:40 AM
Noobsk8r Noobsk8r is offline
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Parts look good and will they be available?
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  #12  
Old 06-03-2016, 10:53 AM
marzo marzo is offline
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very good!
the sun visor is fantastic.

.
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  #13  
Old 06-03-2016, 12:33 PM
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Junkyard Stance Junkyard Stance is offline
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Quote:
Originally Posted by Noobsk8r View Post
Parts look good and will they be available?
Thanks Noobsk8r,

If I can get my parts fit as hoped, and people seem interested, I do plan to make them available through Shapeways

In the meantime, I think what this build needs next is some paint on that blank white shell,,,,
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  #14  
Old 06-03-2016, 12:38 PM
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Junkyard Stance Junkyard Stance is offline
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Quote:
Originally Posted by marzo View Post
very good!
the sun visor is fantastic.

.
Thanks marzo
BTW, Love the 88 inch wheelbase Series IIa - the details are beautiful !
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  #15  
Old 06-03-2016, 01:03 PM
marzo marzo is offline
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ah ah
thank's

i love also sand scorcher

http://www.scale4x4rc.org/forums/showthread.php?t=76443



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