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Author Topic: Traditional Helmet Concept Drawings-NEW VENTS IMAGE  (Read 20705 times)

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Ayrtek Cricket

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #45 on: October 14, 2009, 09:08:27 AM »

We currently have the shell UK manufactuered which costs more in terms of labour than having it made in somewhere like Asia. We can be assured of the quality over here and if need be drive to resolve a problem quickly without the need for days of travel.

Dupont seems to be the name that keeps popping up lately after a confrence we sponsored last week relating to Chinese industry.
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Lekka Global Alliance

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #46 on: October 14, 2009, 09:21:31 AM »

Shell injection costs are the same regardless of resin compound. No extra labour is involved.

Dupont own Kevlar so maybe that is the reason they are promoting Kevlar and not PP , PPCP ,ABS etc etc

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Ayrtek Cricket

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #47 on: October 14, 2009, 09:30:47 AM »

Sounds like a different method to me if the material is injected as this would bring the cost down due to cycle time for the units being less than 90 seconds in plastic.

Injection moulding of ABS/PP is much cheaper to produce than Composite shells and doesnt posess as good properties upon impact
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Lekka Global Alliance

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #48 on: October 14, 2009, 09:39:27 AM »

I think we both know how these shells are produced , my question still stands with regard to the huge price increase.
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Ayrtek Cricket

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #49 on: October 14, 2009, 09:57:27 AM »

I answered your question above "We currently have the shell UK manufactuered which costs more in terms of labour than having it made in somewhere like Asia".

Id be interested to see your kevlar helmet? what does it weigh?
« Last Edit: October 14, 2009, 09:59:06 AM by Ayrtek »
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Lekka Global Alliance

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #50 on: October 14, 2009, 10:11:13 AM »

Not sure why you knock Asia but to answer your question , a selected lid comes in at 650 grams using Ti (but again you know that).
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Ayrtek Cricket

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #51 on: October 14, 2009, 10:20:40 AM »

Lekka, im not knocking Asia as a place to manufacture its simply easier for us as a UK based company to make them here for the time being.

How am i meant to know what the helmet that you make weighs? Can you show us some pictures as i have genuinely never seen the version you produce before only the Lekka RDX helmet which is plastic with a polystyrene liner.
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Lekka Global Alliance

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #52 on: October 14, 2009, 10:28:00 AM »

I have worked on the traditional design of cricket helmet whilst using Ti grills. All in 650 grams.

Which Lekka helmet do you have to your hands ? Maybe you can furnish pics so we both know which lid is in question ?
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Ayrtek Cricket

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #53 on: October 14, 2009, 10:42:53 AM »

http://www.jandgcricket.com/product_info.php?cPath=25&products_id=55

This is the only helmet of yours i have seen
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Lekka Global Alliance

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #54 on: October 14, 2009, 10:50:34 AM »

So you do not have in your hand ? (btw, Slaz now own this mold , luvly jubly)
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Ayrtek Cricket

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #55 on: October 14, 2009, 10:54:59 AM »

No i have a copy of this that came from India which is a simple PP shell with a polystyrene liner in it. Hence why is asked, however this is not a carbon fibre/kevlar helmet that you keep mentioning you have made.

What i want to know is about that as you keep mentioning the process of making it which is completely different to the plastic one in the above link when comparring injection moulding to RTM method!!

Slazenger may own the mould but other companies will have the same version sold to them which doesnt make it unique to a specific company.
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Johnny

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #56 on: October 14, 2009, 11:05:39 AM »

Gents,

Is it worth taking this off-line?
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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #57 on: October 14, 2009, 11:06:50 AM »

Sorry John....back to the topic what do people think of the revised vents?
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Lekka Global Alliance

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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #58 on: October 14, 2009, 11:22:37 AM »

back on off topic , why charge so much extra when adding Carbon only adds $US5.00 per unit ? This is fact.
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Re: Traditional Helmet Concept Drawings-NEW VENTS IMAGE
« Reply #59 on: October 14, 2009, 11:29:07 AM »

Lekka give me an email/PM as John said try to keep on topic your "facts" seems confused
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