Potential orders for 18 inch escoz replica wheels

[cossey man75]

So when are you taking the deposit as I don't come on here every day

[Mark Barber]

i will let you know wayne

[cossey man75]

Cheers mark

[jsa]

Update: we have finalized the strength analysis (FEM) and all looks well. This is what we did: Jsa/John and I came up with the maximum possible loads under bumpy racing conditions. Then we rounded the numbers up to be on the safe side.

Then I hired a FEM specialist with 20 years experience in analyzing wheels to do the FEM analysis. Please find the full report HERE. Conclusion: there is a safety factor of 1.68 before the wheel breaks. And a safety factor of 1.12 with respect to deformation.

In other words: you cannot bend or break the wheel by racing/rallying/going over bumps or applying 1000bhp to it. Rest assured: it will break when hitting a rock

Next step in QC is when we receive the first sample wheels made by the factory end of year. We will then perform both non-destructive and destructive tests on the wheel.

Yes, I have given RSCosworthman my thoughts on loads he has chosen. The outcome, was an increase in the torque load from 1000Nm to 3000Nm.

At about the time of the quoted post I also emailed RSCosworthman with some concerns I have with the FEM report.

I have only a little experience with FEM in solidworks.

My concern is with the application of loads. It is my understanding loads should be applied at one place and anchored at one place.

In the report the anchor is the stud holes and the loads are applied at the bead and hub.

I'm of the opinion the loads should be applied only at the bead & lip. The anchors should be the stud holes, wheel nut faces and hub face.

I think the doubled up opposite forces cancel out within the model. I think the forces applied at the bead/lip should be resolved through the stud holes, wheel nut faces and hub face.

I think the report is invalid because part of the hub area is under tested and the remainder over tested.

I post here because RSCosworthman said he would absorb my email and respond. Since I have not received a response and money is being requested, I am raising my concerns in public for all to consider.

[jsa]

A few of you asked to ship their wheels from China directly to Australia/USA. Will save ~4GBP on sea shipment, but will add 100GBP+ in air shipment to Australia. No way around that I'm afraid.

Done. Update list is here: http://www.tigerworx.nl/listofnames.pdf

12.5kg, 46x46x23cm from UK to AU is £59.40 plus insurance of a couple quid.
So four wheels from UK to AU is around £250.

So a considerable overall saving for CN to AU.

Now you mention, it includes all customs and VAT into the UK. As I understand it you would not be liable for UK customs and VAT for wheels shipped direct from CN to AU.

So by my reckoning, direct recipients would be under USD$265/1.2=USD$220.83 each paid to you ?

Now of course, Australia has Customs, Duty and GST, so we may be billed for that on arrival in Australia.

So, I'm obviously trying to avoid paying taxes in two countries.

Finally I would prefer an airway bill (tracking number) per wheel rather than an airway bill common to a set of wheels. Previous experience has shown individual airway bills helps with customs.

[jsa]

These are in line with how I understand it should be done.

Note, no equal & opposite loads applied near anchors.

https://www.youtube.com/watch?v=B0F51SeasOU

Watch - Stress Analysis of an Anchor Plate
https://www.solidworks.com/sw/resour...ysis-tools.htm

[rscosworthman]

Hi John - sorry for not answering your last email yet, although I read it and took your comments very seriously.

....I think the report is invalid because part of the hub area is under tested and the remainder over tested...

I fully agree with you. This means we have to redo the strength analysis before I plunge my money into the production of the mould.

These are in line with how I understand it should be done. Note, no equal & opposite loads applied near anchors.

Thanks, I will ask my engineer to redo the strength analysis according to these guidelines and I will repost the results here. Thanks for helping me out with this one John. I honestly think the design is more than strong enough, but let's make sure a decent strength analysis proves the same.

...So by my reckoning, direct recipients would be under USD$265/1.2=USD$220.83 each paid to you ?

This is correct - it is even less, because I don't need to pay the import tax (about 4%). My wife will send them separately to your address in Australia with a track-n-trace. I will calculate the absolute price, but let's do 25% off for now.

[cossiedavid]

Scam end of

[maxest]

It is smelling a little off this now...

[rscosworthman]

Scam end of

It is smelling a little off this now...

Guys, really?!?

I'm getting a bit tired of this after having spent over 200 hours of my valuable time and over 1000 GBP of my just as valuable hobby money in this project already.

John/jsa, can you explain these guys that this 'invalid report' is really about tweaking the way we calculate the strength of the wheel, an that we can easily redo it the right way...

Come on...

[Mark Barber]

0000

[cossiedavid]

Some one wants to take your money and cant garintee it wont go missing glad i dont want a set of these

[rscosworthman]

Some one wants to take your money and cant garintee it wont go missing glad i dont want a set of these

Hi David - i fully agree with that logic.

The only thing is: it doesn't apply to this thread at all

Know that I'm 'taking' no ones money - the down payments will be collected by Ben Purnell and be held on the forums paypal account just to identify how many should be ordered. Then I pay about 35K (from my own hard earned money) for the full production. After that, people have time to approve the product before they decide to buy it. So I don't see any way how their money could go missing.

In fact, the only one risking a significant sum of money in this adventure is me. So if this was a scheme would make me the dumbest scammer in the world. That's why I'm keen to get the wheel 120% right and I'm super happy that people like John/jsa actually help me to get the wheel as good as we can.

Obviously you're free to not want a set, wouldn't be special anymore if every escos had these to be honest.

[B13 JUS]

Does this mean the money is held until Ben receives all the wheels?

[rscosworthman]

Does this mean the money is held until Ben receives all the wheels?

Yes

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