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-   -   Anyone have the formula for hexagonal packing of circles in a rectangle? (http://forums.pelicanparts.com/off-topic-discussions/933410-anyone-have-formula-hexagonal-packing-circles-rectangle.html)

RNajarian 10-24-2016 08:46 PM

Anyone have the formula for hexagonal packing of circles in a rectangle?
 
Actually this is a Porsche Technical question.

Do any math gurus know How many 7/32" circles can be hexagonally packed into a 2" x 6" rectangle?

Or better yet, does anyone have a link to an online calculator to figure this problem out?

Below you will find a photo which may help explain my query.

http://forums.pelicanparts.com/uploa...1477366972.jpg

Thanks for your help

Willem Fick 10-25-2016 01:06 AM

It looks like 247? Calculated it as 15 rows of 9, separated by 14 rows of 8.

Willem Fick 10-25-2016 01:17 AM

Sorry, math was wrong - it is 16 rows of 9, separated by 15 rows of 8, adding up to 291 in total.

RNajarian 10-25-2016 06:30 AM

Thanks

The math looks good to me

MBAtarga 10-25-2016 06:54 AM

Circles within Rectangles

265 per above site (full circles only) - but your dimensions are English- I imagine that sticker is actual dimensioned in the metric world - do I don't know how accurate your 7/32 circle measurement is.

Willem Fick 10-25-2016 07:30 AM

Quote:

Originally Posted by MBAtarga (Post 9332717)
Circles within Rectangles

265 per above site (full circles only) - but your dimensions are English- I imagine that sticker is actual dimensioned in the metric world - do I don't know how accurate your 7/32 circle measurement is.

Right you are. They agree on the 16 rows of 9 and 15 rows of 8, but I obviously suck less at trigonometry than addition! :(

A930Rocket 10-25-2016 08:13 AM

It used to be that you could get replacement VIN stickers. Can you still get them?

RNajarian 10-25-2016 12:05 PM

Disclaimer: I have no financial relationship/association with this individual.

There is an eBay seller/Pelican member from Poland who will replicate the door jamb sticker. I hesitate to call it a Vin Sticker, though the Vin is on it.

He customizes it for each buyer. Detail is pretty good, he even includes the perforated holes in the sticker. (The ones I am trying to recreate)

Price around one hundred ish. Seller's name is CarBone. He actually has a running thread on the 911 for sale side. Many Pelicans have used his products.

1990C4S 10-25-2016 02:37 PM

Quote:

Originally Posted by A930Rocket (Post 9332812)
It used to be that you could get replacement VIN stickers. Can you still get them?

http://forums.pelicanparts.com/porsche-911-used-parts-sale-wanted/813863-fs-reproduction-engine-decals.html

I think that's the guy...

A930Rocket 10-25-2016 07:00 PM

We used to buy ours at the dealer. I'm guessing that's not possible if they are making reproduction stickers.


Quote:

Originally Posted by 1990C4S (Post 9333397)



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