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Hello, to all readers!

The 1/32 slotcar world is getting a brand new model really soon!!!
And it will be a young LMP car, being the Oreca07 as mentioned in the topics title.

The introduction

We are building this pre-production model, to become the WEC LMP2 car from Team Signature (better known as Alpine A470) as raced at SPA 2019.
"We" being Steven Verelst (3D designer), Tamar Nelwan (Decal Designer and more) and myself (Just the guy that hopefully gets it all together at the end, to have a beautiful car to show and fast enough to win).
We hope to have this car ready to participate at Rockingham for the next 6hrs DiSCA WEC event.

Tire Wheel Vehicle Land vehicle Car

I will allready show you a few pictures into this project, as this all started a few weeks ("months") ago.

First things first - 3D model

The first step of this project is to design a 3D model, which would be printable.

Vehicle Toy Automotive design Aircraft Automotive wheel system

Steven doing an excellent job and still learning and perfecting his 3D modelling skills, gave us our first "test car".
This "test body" is actually designed to become something else then the Oreca07 that we are talking about at the moment.
But that will be for another time I'm afraid, can't tell to much about it now.
Just that this body is a bit wider then the Oreca07 we are designing (DiSCA WEC regulations).
I had the privilege of building this test car, we decided to make our own little version of the Dragonspeed Oreca07 testing at Daytona,
so it would represent our smaller scaled world a bit better.

Tire Vehicle Car Wheel Automotive tire

Why this test car you may wonder!?
Well you can only tell so much from a picture, and this time the picture was a 3D model.

You actually need to have something in your hands, to feel and see the model and her curves!
(This sounds like it came straight out of a romantic novell, sorry).
And our own designed chassis needs to be tested, just to see if our ideas will actually work.

Phase 2 - Tweaking the 3D model and more ...

After we've build and tested the test car on the beautifull Ninco Suzuka track at SRC Eindhoven (Best, NL),
we noticed a few details that could use a bit more attention.
The things that will make it a lot easier for future costumers, to build this model into a stunning race car.
So for Steven it was back to the drawingboard and start tweaking his model.

At this point it was time for Tamar to start creating the decalset we would need to replicate the Team Signature Oreca07.
Just a "rough sketch" to start with was more then enough, but we received something a lot more then just a rough sketch!

Car Wheel Vehicle Tire Automotive lighting

Phase 3 - "white kit"

At this point Steven tweaked the body a whole lot, it was nearly a complete redesign!
Tamar and myself encouraged Steven day after day, to tweak this thing and redesign another.
But I'm proud to say, it all payed off.

The next picture shows how the Oreca07 body, probably will be as a model kit.

Land vehicle Vehicle Car White Hood

I could write a lot more on were we actually stand at the moment with this build.
But what better way then to just let pictures do the talking!
* Prefitting the livery design on the car (Tamar)
* Vacformed and painted interior, driver P. Thiriet
* Primers and colors (Tamiya spray can)
* Basic color scheme done

Vehicle Motorsport Automotive design Racing Race car

Toy Automotive design Automotive tire Hat Aircraft

Vehicle Car Automotive lighting Hood Motor vehicle

Hand Finger Flooring Creative arts Nail

Tire Wheel Vehicle Automotive tire Hood

Tire Wheel Vehicle Hood Motor vehicle

The "Final Chapter"

How the pre-production SV Workz Oreca07 is becoming the Alpine A470 of team signature.

We Finishid the body shell and put it to the test at the Rockingham DiSCA WEC event, that we attended a few weeks ago.

The decals were custom made by Tamar, it took him a few dozen "design, print, fit, repeat" stages, to get them fitted perfectly.
But the result we've received on just a piece of paper, the detail was all there and I was just stunned by this!!!!


We've got this set printed @slotfabrik and to my own personal opinion, one of the best in the business.
A few days later I received this nice thick white envelope and it had Slotfabrik written on it.
This was on last Wednesday morning, so unfortunately I had no time to get the car done in time to be used at the Rockingham event.
Steven took on the task, to give the body his final livery. He wasn't sure if he was the wright man for the job.
But after a few inspiring word, he had a go at it. As this had to be done all before Friday morning.
As you can see in the pictures, he did a cracking job but we still had a lot to do to get the car completely finished (smaller details stuff).


And off we were to Rockingham for her first shakedown, the "Rock Bull Ring" at the Rockingham Slot Car Club.
We didnt have a lot of practice on the Friday evening free practice session, as we had to finish the car first before it would hit the track.
So we had to put our bets on the official practice of Saturday evening.
We were struggling to find a setup that worked like we achieved at the Suzuka track from Eindhoven, different track - different setup.
By the end of this session we were about 0.4sec off the quickest P2 lap time, which was as well the quickest time overall!!!

But working and travelling with a slot guru like Tamar Nelwan, does has his advantages.
As he did the most R&D on the car during the tests at Suzuka, he already knew the chassis a bit better.


Wheel Tire Vehicle Car Hood Wheel Tire Vehicle Car Hood

We had a good look at the car and tweaked a few things overnight, started from a scratch setup, and had a 1-hour qualifying session to get the car setup for the race.
The car felt better and more reliable then the evening before, and we were finally in the battle for the pole with the other P2 car from SportsCarRacing and the P1 Toyota TS-40 from Rockingham.
And with about 15sec on the clock, there it was "Pole Position" just a few hundreds of a seconds quicker then 2nd position.
Starting in front of the grid does have his advantages, but that doesn't mean you will finish the race in that position.
We just proved that the Oreca07 has the strength to put up a good fight in his first outing.


Automotive tire Motor vehicle Automotive design Wheel Tire
The race started with no more problems then usual, the pace was good; we maintained our spot and could stretch our legs in the opening laps to create a small gap.
But unfortunately, we did suffer some problems, as my teammate told me we weren't counting every lap.
This started playing in my head and we had a few de-slots, as I was more focussed on the problem. What did we miss or oversee that this was happening...

About 30 minutes in the race we were told that this problem didn't only struck us, but apparently all type B2 and C chipped cars...and that Race control was working on it.
They had been checking all missed laps by noting down every lap time that resembled a double lap time lap and checking them against the database log file. A most tedious piece of labour performed by Matt and Maurizio
But still, even though the lost laps would be corrected by half time and at the end of the race, for a long time we had no accurate info on what our exact position was compared to our competitors, some of whom where having similar issues themselves.


This being said, we had to focus on just putting in lap after lap after lap.
We both took on 1-hour stints, the car ran and felt great and reliable.
But disaster took over, after our first pit stop and changing tires from N18 to F22, the tires came off the rims after we went a bit sideways.
Tamar was there to quickly repair the car, but this incident did occur a few times until we noticed that this tire was torn a bit.
We had to pit again for another fresh set of tires and we could run these without any further problems, but we lost a lot of laps.
From this point on I even dare to say that our car was one of the quickest out on the track.
But the damage was already done for claiming any P1 position, weather it was a class win or an overall win.
So we could only hope that the though competition ran into any trouble at all, but this never happened.


The raced ended for us in a 2nd place finish in class and a 3rd place finish overall.
But we did win the concourse elegance, for us that is as important as any result!
We are all happy with the total result of this race and what we achieved over the last couple of months.
As we must not forget that this was the Oreca's first outing, in probably one of the most toughest and competitive digital endurance event you can race in.


Tire Wheel Vehicle Car Automotive tire

We will finally share a few pictures of the P1 and P2 DiSCA spec chassis.
These both will go into R&D, for any further developments.

Tire Wheel Vehicle Toy Automotive tire Tire Vehicle Car Automotive tire Toy

Tire Vehicle Wheel Car Toy Car Toy Vehicle Hood Automotive design

Thank you all for reading this looooong post

Kind regards Tom
 

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ParrotGod
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WOW Guys, this is truly amazing.

That chassis/pod combo looks like a great design...the long central arm and 5 anchor points: that is really great.

Do you have a sidewinder pod?

Tom, it would be nice if you could post a pic of the chassis/pod from underneath.

Are those washers-like disks near the body mounting attached to grub screws to set up the height of the body?
 

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Brilliant work and a great write-up too! The car looks stunning and obviously goes as good as it looks, well done and good luck for the next race.
 

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Great work but these LMP cars do nothing for me, they all look exactly the same

Tony
As with all prototypes function (and regulations) dictates form. And with the Oreca 07 dominating the current LMP(2) grid...you've got a point Tony.
But that's exactely why this is an interesting car for a (small) manufacturer to model it into a slot car
wink.png


I think one could easily state that the Oreca 07 is for contemporary LMP's what the Porsche 962 was for the Group C era.

With kind regards
Tamar

Land vehicle Tire Car Vehicle Automotive tire
image courtesy of Oreca.com
 

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WOW Guys, this is truly amazing.

That chassis/pod combo looks like a great design...the long central arm and 5 anchor points: that is really great.

Do you have a sidewinder pod?

Tom, it would be nice if you could post a pic of the chassis/pod from underneath.

Are those washers-like disks near the body mounting attached to grub screws to set up the height of the body?
Hello Grunz,

It's not exactly a 5 anchor points motorpod, it's designed more like an NSR model with only 3 anchor points.

But you will notice that in the pictures andhopefully perfect explenations below.

At the moment we didn't yet designed a SW motorpod, as this type of chassis only fits 1 model at the moment , being the Oreca07.

But in the near future their will become a SW pod available, as we are in the progress of another build!

That certain team owner/captain prefers a SW setup in his GT LM cars !!!SPOILER ALERT!!!

In the next pictures you will see how we designed our chassis and hope to write a decent explenation on how certain things work.

In the first image, taken from the bottom of the chassis, you can see that this is actually a 3 anchor point system in stead of 5.

The 2 anchor points at the rear at just there to hold the diffuser, both in the this setup (DiSCA P2 inline as DiSCA P1 AW).

If you look closely, you will noitce 2 grub screws just above the diffuser screws and 2 sponges at the rear of the body.

And because we've also located the body screws at the sides and nearly in the middle of the body.

This gives us an extra feature on how this chassis works.

When exiting a corner and applying full throttle, the body will lift its nose in the air were the rear will come down, a sort of rockin motion.

As this happens, the rear of the body will lean on those 2 grubscrews, and because of the diffuser being attached directly to the motorpod,

this will give us more weight (pressure) on the rear wheels, being translated into more grip and less wheel spin exiting a corner.

This is still a feature that is under development, but tested at Suzuka (SRC Eindhoven, NL) it worked likek a charm.

Toy Wheel Automotive tire Car Automotive design

Tire Wheel Toy Motor vehicle Automotive tire

Thank you all for reading

Kind Regards Tom
 

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ParrotGod
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hi Tom

thanks for the explanation. It makes perfectly sense.

This makes this chassis/body one of the most advanced (that I have ever seen) in 1/32.

Well done guys to push the envelope further.

I am looking forward to seeing some 3d chassis that incorporates these pods for gt3 cars.
 

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ParrotGod
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yes, I noticed the clip for the chip. Nicely done.

As for the grub screws to control suspension excursion, again nice touch - although I have seen this already done in the BA cars.

Nevertheless, I truly believe your pod design is one of the best out there.

Well done everyone involved in the project.
 

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Hello Martin, if I may join in
The way the cockpit windows are mounted on the SV Workz kits is very similar to what I described in my Ford GT LM post (link).
They are designed to be mounted from the outside, a much neater solution that when clear parts are mounted from the inside.

As in most cases this will create ugly gaps and will have the parts stick out above or be mounted to low in the window frames.
With most regular double sided tapes, the mounted SV Works clear parts will be perfectly flush with the rest of the Oreca bodywork surface.

Pictured below a cropping of Tom's earlier post, it clearly shows the recessed areas where you should apply the double sided tape to mount the clear parts. This can be any type of double sided tape, but the thinner, the stickier...the better.

The tape will be hidden by the paint and/or decals you'll need to apply on the windows.

Aircraft Airplane Vehicle Aviation Goggles

The pictures Tom posted of the finished Signatech Alpine were taken both pre...and post race. With the windows mounted in exact this way.
In fact we only taped the top of the windshield as in the un avoidable crash this will allow the nose of the body to flex..without the window coming off.
For added piece of mind you can also add some extra masking tape on the inside, or use a drop of Hypo/ neoprene /Uhu 2k glue in the top corners to secure the clear parts even more.

With kind regards
Tamar
 

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Oh ok, sorry, must have been to pre-occupied with my online chores. Yep that's the (4 & 8mm) Tamiya masking tape.
As long as your body is clean on the inside...never had a problem with it. Sticks good enough, LMP cockpits being very small and light anyway.
But doesn't stick so hard that when you need to remove the cockpit, (even with the SV Workz build in mud flaps) tire debris gets everywhere...

...you'll rip apart the whole cockpit or tear loose a wire light cable.

With kind regards

Tamar
 

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Like Tamar said, the tape will do the job!
biggrin.png


Because Toms Alpine body is one of the pre-production models, it wasn't provided yet with small tabs to keep the interior.
As you see on the picture below, the interior is already provided with those tabs. And small melting points are created into the body. I don't have a photo of this...
innocent.gif


interiortabs.jpg
 

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Hello Slot friends
Its been a while since news was posted in this topic, one of the reasons being that sadly Tom (van Leekwyck, the guy that gets it all together at the end) has left the "hobby".
He has hang up his guns to focus his time and effort on other matters in life. His knowledge, build quality and role and skills as a bloody fast & consistent race/test/development driver will be duly missed.
As will his posts on the interweb...so I 'm going to highjack this topic for now because there is news.

"Old" 07 Liveries
With the withdrawal of Tom the team was a bit shorthanded for the build of the second 07 based on the 2017 LM #24 Manor racing LMP2.
Due to race at the DiSCA Finals in Igualada. even though we had a plan B (racing the Signatech Alpine) this was not really an option as the car featured so prominently on the event poster.
wink.png

For a prototype MK2 version, Steven (Verelst ) did a good job and managed to finish the car well in time.
Unfortunately Tom's set-up & driving skills were duly missed @ Igualada, Dave Maddock and Stefan Wegner did a great job in a very competitive grid with lots of LMP1's.
They ended up 2nd in the LMP2 class, but 9th overall. Did win the concourse though.

All those white kits will need some paint and fitting decals, so both the #36 Signatech Alpine and the #24 Manor decal sheets are now readied for production and will become available in the 2nd half of January 2020.

SV-07_manor00.png


"New" 07 Liveries
With the start of the "new" LMP2 formula in 2016, Racing Team Nederland chose to go for a Dallara P217 and soon discovered it was the wrong choice.
So for the 2019-2020 season they did a "if you can't beat them...join 'm" so Frits van Eerd (CEO of Jumbo Supermarkets) bought himself a brand new Oreca 07.
Clad in in his favorite Minardi/ Jumbo yellow they were immediately blindingly fast during the prologue in Barcelona, took their first podium in the opening round @ Silverstone,
and scored an incredible win during a rain soaked race @ Fuji.

But even had they finished dead last as with the Dalara's, its a stunning livery that was immediately on the wish list for the 1/32nd racers so...
SV-07_rtn03.png


Wrapping a 2D Banana on a 3D model again.
With S-Slot fielding a SV Works 07 for the 2020 DiSCA WEC season, staring with the January 6hr Suzuka race....time for me to start preparing the decals.
Wrapping a 2D banana on a 3D model once again:)

With kind regards
Tamar

SV-07_rtn00.png


SV-07_rtn01.png


SV-07_rtn02.png
 

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I definitely need a set of these Jumbo decals, the car I already got :).
/Leon
Same here! Let us know when they are available.

Sorry to hear about Tom having to put his energies elsewhere - I hope he has the time and inclination to join us again in the future. A very clever guy and it was always great to be in his company .
 

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Like I said, The #36 Signatech and the #24 Manor racing decals will be available from 2nd half Januari.
The #29 RTN Jumbo and possibly the #28 TDS racing (2018 version) 2nd half Februari.

Motor vehicle Automotive lighting Automotive design Automotive tail & brake light Cartoon

When drawing decals for my personal use I know exactly where the decals need to go, how to wrap them around the corners etc etc.
I can afford to cut some corners here and there or will include several options on a much larger decal sheet.
This is all good for prototype sets, but not good enough for production and customer release.

Each decal set will be tailor made to fit the SV Works 07 body & transparencies. Will be test printed and test build and evaluated before they are released.

This process takes time...but it will be well worth the wait...trust me
wink.png


With kind regards

Tamar
 

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Hello Slotfriends
After rereading this topic I realised we never posted some Basis tips and tricks on how to prepare, sand, primer and paint the SLS 3D printed bodies.
There are a lot of you guys with white kits about to start painting while waiting for the decal sheets, but before we go into fine detailing, we need to go back to square one.
And when I mean square one, I really mean square one. Before I start writing about the preparation of the bodies here's a bit of info on the 3D printing process and the Material used.
This will explain why some steps are essential to do in the first stages of preparation for paint, and the reasoning behind some of the choices you'll be making later on in the process.

Square One, printing the base body.
Currently SV Workz uses Shapeways to 3DP their products. For the bodies & chassis that is done via a process called Selective Laser Sintering (SLS)
SLS 3D printers use a high power laser to fuse small particles of polymer powder. Here's a basic description of the printing process

  • Powder is dispersed in a thin layer on top of a platform inside of the build chamber.
  • The printer preheats the powder to a temperature just below the melting point of the raw material. This makes it easier for the laser to raise the temperature of specific regions of the powder bed as it traces the model to solidify a part.
  • The laser scans a cross-section of the 3D model, heating the powder to just below or right at the melting point of the material. This fuses the particles together mechanically to create one solid part. The unfused powder supports the part during printing and eliminates the need for dedicated support structures.
  • The platform lowers by one layer into the build chamber, typically between 50 to 200 microns, and a recoater applies a new layer of powder on top. The laser then scans the next cross-section of the build.
  • This process repeats for each layer until parts are complete, and the finished parts are left to cool down gradually inside the printer.
  • Once parts have cooled, the operator removes the build chamber from the printer and transfers it to a cleaning station, separating the printed parts and cleaning of the excess powder.

For more detailed info on the SLS material as used by Shapeways, click here
For a more detailed description of SLS 3D printing click here

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High tech, perfection and...tolerances
If the list above reads a bit too much like high tech and perfection..that's because it was intentionally written this way (and not by me)
Because as in any process, there are conditions that cause side effects and just plain errors do occur.
Due to high temperatures and ambient conditions an overall tolerance by shrinkage in a product with dimensions of 50x50x100 mm can be 0.15 mm + 0.0015*100 mm = 0.3 mm bigger or smaller in any direction. (source Shapeways)
And even when the 3D model has been printed without any errors, the operator has to dig it manually out of a pile of Nylon powder and remove all non sintered powder with an (air)brush.
The last step in the post printing process is an optional one that we always select for our bodies & Chassis: the polished finish.
The cleaned up models can be polished further mechanically in what you could describe as a small tumble dryer with abrasive pellets. In this process the "high" edges of the fused material are rubbed down to a more flush satin like surface.
So now you know a bit more of "high" tech that has been used to produce the nice white body durable and flexible body of that unique slot car that's been wrapped in your SV Work box...

...and then you think: How am I ever going to turn this into something as smooth and shiny as a simple injection moulded white kit.
lmfao.gif


For now the most important things to keep in your mind from the story above are: Polymer (70% nylon) powder/pellets of approx. 0,05 mmø, fused together by high temp. Laser optics in layers of approx 0,1mm thickness.

and here's a bit of good news..you can get a 3DP body as smooth and shiny as a simple injection moulded white kit... All you need are the right tools.,,,and some elbow grease.

To be continued

with kind regards
Tamar
 
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