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-   -   The Junkyard Stance Sand Scorcher Build (https://www.scale4x4rc.org/forums/showthread.php?t=82006)

Junkyard Stance 06-04-2016 12:20 PM

Junkyard Stance Sand Scorcher, Negative Camber angle,,,
 
10 Attachment(s)
Here's a slight aside - there's been no "Junkyard" in this thread at all yet ! -

I promise will will get to the junkyard, in due course,

But for now, at least a little "Stance"

A little negative camber angle on the fronts, admit it, it just looks cool:

Attachment 101601

I tested out my plan by fitting some washers in between the front lower arm and the "front axle" ( as Tamiya calls it )

Attachment 101602

And decided with a longer lower arm shaft, I could play around with a negative camber angle

Attachment 101603

The cast part has a similar flat side to tighten the grub screw against

Attachment 101604

and allowed some quite extreme camber angles, when I tried out different spacers, here - two 4mm bearings ( this was very extreme )

Attachment 101605

In the end, I went for a cast 5mm spacer

Attachment 101606

One for each side:

Attachment 101607

Here's the part going into the front assembly ( with a little grease )

Attachment 101608

And with the lower arm attached

Attachment 101609

And back on the chassis - the cast material is not a great match for the stock metal, so I may further tweak this going forward

Attachment 101610

Junkyard Stance 06-05-2016 07:36 AM

Junkyard Stance Sand Scorcher, inner wheel arches, and side panniers
 
6 Attachment(s)
Well come back to the front camber angle, as I experiment with it throughout the build.

But next, I've never been keen on the way you can see all the internals through the empty wheel arches on Tamiya's Sand Scorcher, so I decided to add the challenge of printing some inner wheel arches to my parts list

Firstly a pair of side panniers, both to look cool, and give me two of the three fixing points I need for the intended rear inner arches.

Here's my design

Attachment 101611

And where they should fit on the Scorcher

Attachment 101612

Here's the test pair printed out

Attachment 101613

And fit to the work-in-progress body shell

Attachment 101614

Attachment 101615

Attachment 101616

Junkyard Stance 06-05-2016 07:48 AM

Junkyard Stance Sand Scorcher, nerf bars
 
10 Attachment(s)
Flipping round to the front of the Scorcher, I wanted to design a cast metal part to protect from front impacts - I do intended this be be a driver and not shelf queen - there is the stock item, or third party box-art style cage bumpers.

I was after something a little different -

How about a off-road take on the classic nerf bars style, you used to see fitted to a lot of Bugs ?

Attachment 101617

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Attachment 101619

I decided to use all six holes on the underside for extra strenght

Attachment 101620

Attachment 101621

Here's the test nylon part, in primer, on the build

Attachment 101622

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Attachment 101624

I was happy, bring on the cast alloy version, this time with a nickel plated finish - which is about the shiniest Shapeways do

Attachment 101625

Attachment 101626

Junkyard Stance 06-05-2016 08:01 AM

Junkyard Stance Sand Scorcher, inner wheel arches, and side panniers
 
10 Attachment(s)
Back to those inner wheel arches, and although I liked my side panniers - they are going to act as fixing points for the rear inner arches - I wanted to push the idea a bit further

Add in a Jerry can on one side:

Attachment 101635

Attachment 101636

And a couple of Nitrous canisters on the other

Attachment 101637

Attachment 101638

and that's more like it !

With the plans I have for the engine for this build - these are both essential items !

Here's the test prints:

Attachment 101639

Attachment 101640

They look a whole lot better in primer ( and way easier to photograph )

Attachment 101641

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And on the Scorcher

Attachment 101643

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Trini2DBone 06-05-2016 08:06 AM

Wow....! Is there a Shapeways located in the UK? I know that you are now putting together this thread , but it must have taken a while to order and receive those parts.....

Junkyard Stance 06-05-2016 08:14 AM

Quote:

Originally Posted by Trini2DBone (Post 1046602)
Wow....! Is there a Shapeways located in the UK? I know that you are now putting together this thread , but it must have taken a while to order and receive those parts.....

Hi Trini2DBone, thanks for checking back !

There is a Shapeways in the Netherlands that ships to the UK (no import duty, unlike from the US) - Parts do take a week or so from uploading to receiving

This build has been going on a while now, and although it's certainly not finished - they are still quite a few steps to show before it has caught up to where it is.

I was unsure how the whole process would go, but I decided to to photograph everything from the beginning regardless - unlike other projects - which I am pleased about now as this is looking like the first build that I will actually finish !





Plenty more to come,,,

lilsami87 06-05-2016 08:50 AM

This is turning out really nice! Might be interested in parts!

Junkyard Stance 06-05-2016 09:21 AM

Junkyard Stance Sand Scorcher, inner wheel arches, and side panniers
 
10 Attachment(s)
So, on to the inner arches, firstly the rears,,

These took a lot of tweaking - the more contact points a design has with the curved surface of the sand scorcher, the trickier it is - and really tested the accuracy of the 3D model I was continually developing

My plans were reasonably ambitious - A five part assembly that that included both inner rear arches, the side panniers, and a rear shelf that would be visible through the rear window

Here are the parts

Attachment 101645

and how they should fit together into the assembly

Attachment 101646

The fronts are somewhat simpler - just a part for each side

Attachment 101647

Here's a profile on the 3D Scorcher

Attachment 101648

This was about the third print of the rear assembly

Attachment 101649

Which finally fitted quite well, just some minor gaps, and the slot for the shock needed pushing backwards a touch

Attachment 101650

With the rear wheel in place, it certainly gave the effect I was after

Attachment 101651

The design was tweaked, and here are the revised parts, in the black nylon this time - i guess it saves on primer for a part you're going to paint dark anyway !

Attachment 101652

To join the shelf to the wheel arches, I used four M2.5 12mm cap heads

Attachment 101653

Here's the final assembly, ready to go in,, you can see the two m.16 screws ready to fix into the holes in the cage of the panniers

Attachment 101654

Junkyard Stance 06-05-2016 09:42 AM

Junkyard Stance Sand Scorcher, inner wheel arches, and side panniers
 
10 Attachment(s)
The inner rear aches have pilot holes to drill through, once I had it held tight to the Scorcher - the nylon material is quite flexible, so it was possible to flex it into a really tight fit on the body, while marking holes.

Attachment 101655

Here are the front two fixing holes for the rear arches - these line up with the panniers, and the whole lot screws together

Attachment 101656

From the inside

Attachment 101657

I couldn't work out another way of securing the rear of the inner arch, so as I'm not a fan of gluing anything on car you plan to drive reasonably hard, a discrete screw through the body work was the only solution.

Attachment 101658

From above, the shelf looks cool, and the screw is barely noticeable - particularly once this Scorcher has been to the Junkyard !

Attachment 101659

The front inner arches do clear the top of the stock front suspension, but in case I modify the front set up later ( no plans just yet ) I've left a substantial hole in the top of the printed part, should extra clearance be needed later.

Attachment 101660

The inner front arches fix on at the front using the hole where the nose cap attaches to the main body shell - I've used an M2 8mm cap head

Attachment 101661

The rear fixing point for the front arch, again, is a drill-through-the-bodyshell affair,

Attachment 101662

But the m1.6 cap head does tuck in behind the hinge of the door, so it's not too obvious

Attachment 101663

Here's view of the final fit

Attachment 101664

Junkyard Stance 06-05-2016 09:47 AM

Quote:

Originally Posted by lilsami87 (Post 1046606)
This is turning out really nice! Might be interested in parts!

Thanks lilsami87 !!

Happy to answer any questions you might have

Junkyard Stance 06-05-2016 10:28 AM

Junkyard Stance Sand Scorcher, the electronics box
 
9 Attachment(s)
So i reckon, anyone who's had the patience to read this far, wading through the excitement of inner wheel arches, deserves a little treat.

I never been a fan of seeing all the untidy cables and suchlike in the clear plastic "water proof" (80's style) electronics box

Here's my solution,

Firstly, I painted the recessed Tamiya stars in the lid with black gloss acrylic - firstly with a tiny brush - then pushing the paint into the corners with a needle - Some very light sanding with some p800 was needed to clean up the mess

Attachment 101665

The I masked off the entire outside of all three parts that make up the box

Attachment 101666

Spray the inside with about eight coats of lime green gloss, waited a week to dry ( it was winter ), and the here you are

Attachment 101667

Reassembled

Attachment 101668

My nod to Tamiya

Attachment 101669

And refitted to the chassis

Attachment 101670

Attachment 101671

Attachment 101672

I got to admit - I'm still loving the negative front camber, and the nerf bars !

Attachment 101673

DougJ 06-05-2016 11:13 AM

I gotta admit, I don't like the camber at all. I do like everything else you've done though. I'm most looking forward to the weathering process, that's my favorite part of any build. :nice:

Junkyard Stance 06-05-2016 11:22 AM

Junkyard Stance Sand Scorcher, sit back, take stock
 
9 Attachment(s)
It's that time again to sit back and take stock of progress,

From the front, this build is going in the right direction, the Junkyard Stance Scorcher is looking mean and ready for the junkyard treatment

Attachment 101674

Attachment 101675

Attachment 101676

But from the rear it's a sorry state, there's an ill fitting louvered sun shade, and other than that. it's just a bit, bare

Attachment 101677

Attachment 101678

Attachment 101679

But wait, there is hope ! What's that I see,, a wider, lower rear cage

Attachment 101680

Attachment 101681

Here's my designs for a revised rear cage - one with enough space for an engine appropriate for the build -

Attachment 101682

Junkyard Stance 06-05-2016 11:26 AM

Quote:

Originally Posted by DougJ (Post 1046612)
I gotta admit, I don't like the camber at all. I do like everything else you've done though. I'm most looking forward to the weathering process, that's my favorite part of any build. :nice:

Hi DougJ, thanks for showing interest ! , I guess it's "each to their own" in matter of camber, or perhaps "camber is as camber does",,

Plenty of weathering coming up, watch this space !

Junkyard Stance 06-05-2016 11:56 AM

Junkyard Stance Sand Scorcher, Engine build, The plans
 
4 Attachment(s)
So, we are finally here - after a weekend of cropping and typing !

In many ways the story of this build, is really the story of this engine build

Ever asked yourself the question - what's the ultimate engine you could squeeze into the back of a Sand scorcher, or indeed any VW Beetle ?

The natural evolution of the flat four air-cooled unit designed by Ferdinand and friends has to be the the air-cooled flat six that became the 911 workhorse for decades. When I discovered that they are crazy dudes who have slotted a flat six Porsche unit into beetles in the real 1:1 world, that was it - I became obsessed

Folks, I offer you my plans for my Junkyard Stance engine:

A Porsche flat six, air-cooled, twin turbo boxer beauty:

Attachment 101683

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Attachment 101686


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