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• #152
i'm glad to see you are using a broadsheet rather than a tabloid for this project
far better quality of papier mache -
• #153
@Polka Dot: if you can provide me with your geometry, I can run some CFD simulations for you. Sadly the only laser scanner I can get free access to is desktop sized. You're not a Borrower, are you?
If you send me the scanned mesh file I can mill it out of sikablock and vacform a hard shell over it... then we can start charging for CFD-approved custom aero helmets.
Lae: if you send me a hard shell I can re build it in CAD and run some stress simulation through it..
Shit just got real.
Feck. Theres some usful bods on here these days. I'm a polymer chemist currently specialised in polystyrene foam. We really should produce some LFGSS aero helmets, for more efficient fixie skidding.
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• #154
can't someone just 3D print it
save having to fanny around with all those broadsheets and flour water paste -
• #155
@polkadot, if you zoom me over the wras docs I can calibrate it's stress forms and refunction the aft, then we can bore through the MOS, scour the tonnage and hey presto you've got yourself a street legal aero helmet. Pm me and we can get this going.
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• #156
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• #157
OK, starting a list of those who would buy a fully produced, designed and tested Polka Dot aero helmet. Let's see if this is viable;
- Sandbag
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- Sandbag
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• #158
Ha, this could be the highest tech home made aero evar. I can use these facilities if that's any help:
http://www.instituteofmaking.org.uk -
• #159
This thread has inspired me to get back to one of my own papier mache aero projects....... I dug it out of the shed this morning
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• #160
Some great interest here. So many questions...
Next picture:
At this point, using the Mk1 eyeball that I have exclusive access to, I discovered that the helmet was not perfectly symmetrical.
This was a little bit annoying.
The left side of the helmet (our right) looks better to me. I think this must be something to do with being right handed. -
• #161
Thanks to Cecco and Ronny.
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• #162
A home made paper-mache helmet not being symmetrical? Strange.
I'm sure you could add some more paper-mache to the right hand side to bring it out a bit to match the left?
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• #163
if he using it on a velodrome that lopsidedness might help him go round corners better
just pray it's lopsided on the correct side or you'll have to be countersteering all the way around -
• #164
Polka Dot aero helmet.
To go with the matching road lid?
http://cdn4.media.cyclingnews.futurecdn.net//2012/07/11/1/bettiniphoto_0116130_1_full_600.jpg
1 Attachment
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• #165
I'm sure you could add some more paper-mache to the right hand side to bring it out a bit to match the left?
Steady on. Think of the weight. Marginal gains and all that.
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• #166
Have you considered moisture Polka Dot? Internal and external to the helmet. What happens when you break the sound barrier and your understandable perspiration causes your head to resemble a finished bag of fish and chips from the high street?
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• #167
You're forgetting about the wooly hat - that should soak up a fair bit of sweat before the paper-mache disolves.
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• #168
you guys are putting too much thought into it, he just needs to wear a swimming cap under the helmet.
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• #169
This is comedy gold.
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• #170
Try the van Gogh solution to uneven weight distribution, cut off an ear.
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• #171
This thread has inspired me to get back to one of my own papier mache aero projects....... I dug it out of the shed this morning
an admirable attempt to re invent the wheel imho
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• #172
Right,
Let me answer a some questions,Will you be including a layer of tin foil in the lay-up?
Funny. Next time.
I think your knees are too close to your elbows but otherwise where do I buy one of these custom lids?!
Not currently taking orders. Price would probably be somewhere in the region of £1000.
Is that Kurt Cobain?
Thanks for that. I never got one of those, but now I feel like I have.
op, can you be persuaded to venture into footwear perchance?
What do you have in mind?
amazing. i can see this idea taking off. Perhaps there'll even be a homemade aero helmet ride to brighton
List...
"fatto quotidiano" helmet?
it looks like :)Can't remember. Must have just got back from trip to Italy. Mostly Guardian I think.
^^^(lots) another music student?
Former.
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• #173
Now for a couple more pictures:
It's come on some way from the 'ear flaps' stage.
Yet, still some way to go.
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• #174
[QUOTE=Polka Dot;3554308]Right,
Let me answer a some questions,What do you have in mind?
Ideally some duck ankle boot type with an spd sole please
would they have to be laminated to be water proof? -
• #175
Missed one. Sorry.
are you related to skrtluv?
No.
Lae: if you send me a hard shell I can re build it in CAD and run some stress simulation through it..
Shit just got real.