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My other ride is a C-130J
 
RNajarian's Avatar
 
Join Date: Jul 2004
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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.



Thanks for your help

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1975 911 Targa S 3.0 2000 911 Carrera Cab 2005 Cayenne Titanium Metallic
2022 Mercedes-Benz E450 Coupé 2020 Mercedes-Benz E350 2006 ACG Hummer
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Old 10-24-2016, 07:46 PM
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It looks like 247? Calculated it as 15 rows of 9, separated by 14 rows of 8.
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Old 10-25-2016, 12:06 AM
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Sorry, math was wrong - it is 16 rows of 9, separated by 15 rows of 8, adding up to 291 in total.
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Old 10-25-2016, 12:17 AM
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My other ride is a C-130J
 
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Thanks

The math looks good to me
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1975 911 Targa S 3.0 2000 911 Carrera Cab 2005 Cayenne Titanium Metallic
2022 Mercedes-Benz E450 Coupé 2020 Mercedes-Benz E350 2006 ACG Hummer
Previously Owned Art from Stuttgart
2000 Boxster -1983 911 SC Cab -1984 944 N/A
Old 10-25-2016, 05:30 AM
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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.
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Last edited by MBAtarga; 10-25-2016 at 05:56 AM..
Old 10-25-2016, 05:54 AM
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Quote:
Originally Posted by MBAtarga View Post
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!
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Old 10-25-2016, 06:30 AM
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It used to be that you could get replacement VIN stickers. Can you still get them?
Old 10-25-2016, 07:13 AM
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My other ride is a C-130J
 
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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.
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1975 911 Targa S 3.0 2000 911 Carrera Cab 2005 Cayenne Titanium Metallic
2022 Mercedes-Benz E450 Coupé 2020 Mercedes-Benz E350 2006 ACG Hummer
Previously Owned Art from Stuttgart
2000 Boxster -1983 911 SC Cab -1984 944 N/A
Old 10-25-2016, 11:05 AM
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Originally Posted by A930Rocket View Post
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...
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Old 10-25-2016, 01:37 PM
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We used to buy ours at the dealer. I'm guessing that's not possible if they are making reproduction stickers.



Old 10-25-2016, 06:00 PM
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