HP Forum Archive 20

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Large pic of 15c LE and 30th anniversary - you can download these too Message #1 Posted by Gene Wright on 2 Sept 2011, 3:44 p.m. 15c large on flickr and 12c 30th for a closer look. Edited: 2 Sept 2011, 3:46 p.m.

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #2 Posted by Martin Pinckney on 2 Sept 2011, 5:05 p.m., in response to message #1 by Gene Wright TOO big. Didn't even know it had opened up until I scrolled down and right. And I have a 22" screen (HP, BTW).

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #3 Posted by Miguel Toro on 2 Sept 2011, 5:18 p.m., in response to message #2 by Martin Pinckney Just choose a different size from the menu above. Miguel

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #4 Posted by Egan Ford on 2 Sept 2011, 5:34 p.m., in response to message #1 by Gene Wright I would have thought 'e' would have been a better constant to use on the 12C.

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #5 Posted by Gene Wright on 2 Sept 2011, 5:42 p.m., in response to message #4 by Egan Ford Eh, it was tough. Sure, e shows up in continuous compounding, but 99% of business users would not recognize that. So what to show? 360 perhaps. Just not really a good choice. So, someone at HP chose PI. Better than 0.7734, imo. :-)

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #6 Posted by Gerson W. Barbosa on 2 Sept 2011, 6:39 p.m., in response to message #5 by Gene Wright Quote: Sure, e shows up in continuous compounding, I just read about it on the book e: The Story of a Number, by Eli Maor: f CLEARFIN 1 0 0 ENTER EEX 1 0 n / i 1 CHS PV FV --> 2.718281828 Sure e would have been very appropriate.

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #7 Posted by Lode on 2 Sept 2011, 6:01 p.m., in response to message #1 by Gene Wright If you place both images on top of each other (or align them exactly the same in two browser tabs and switch the tabs) you can see that the leathery pattern on the sides is exactly the same on both. Is that leathery pattern made in such a way that it has the same pattern on every calculator? What I mean is, in the top left, top right and bottom left of the calculators especially, the bumps and lower spots, the black and white spots, are the same.

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #8 Posted by Lincoln R. on 2 Sept 2011, 6:26 p.m., in response to message #7 by Lode Are you talking about the texturing of the plastic case? They'd almost certainly all be identical, or there would only be a handful of variations. Plastic injection molds are expensive, and that texture gets there by sand blasting the mold used to make the case.

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #9 Posted by Jean-Michel on 3 Sept 2011, 2:46 a.m., in response to message #8 by Lincoln R. Hello, If texturing are strictly identical from one part to another, then there is only one cavity in the mold of this part. This is consistent with the fact that only few units are planned to be molded. (When I say "few", I means regarding usual volumes of plastic injection molding, which are commonly hundreds of thousands or even millions, and not only a small batch of 10,000 15C-LE plus the 12C.) Kind regards.

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #10 Posted by Lyuka on 3 Sept 2011, 12:06 p.m., in response to message #9 by Jean-Michel Hi, It's interesting. I compared the texture of two hp 15C that I have. "hp 15C texture comparison " One is made in 1986, and the other is in 1988. (serial number 2612Axxxxx and 2813Axxxxx) The textures are identical but the later one (2813Axxxxx) seems dull. Lyuka

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #11 Posted by robert rozee on 3 Sept 2011, 12:30 p.m., in response to message #10 by Lyuka it is quite possible that there was only ever ONE mould/die that was used to make EVERY original 10-series calculator case. making a die can cost $100,000 so not cheap, yet a single one can be good for making a million or more items - with (as you observe) a slight loss of fine detail over time. Edited: 3 Sept 2011, 12:32 p.m.

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #12 Posted by Lincoln R. on 3 Sept 2011, 2:10 p.m., in response to message #11 by robert rozee There were probably multiple molds as I doubt HP really wanted to ship pieces of molded plastic from Corvallis to Singapore and Brazil (Maybe someone who worked in HP manufacturing back then knows this). It's entirely possible that each plant only had 1 mold though. I know there were multiple molds for the Pioneers, I've opened a Singapore-made 32sII and a USA 32s, the insides of the cases were marked "MOLDED IN SGP" and "MOLDED IN USA" respectively.

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #13 Posted by Jean-Michel on 3 Sept 2011, 4:30 p.m., in response to message #12 by Lincoln R. I'm not sure that a single mould could be used over that much years to produce that many parts without having to change it, due to wearness and loss of precision of the dimensions getting out of tolerances. Even if moulds are made of hardened steel they are subject to wearness and have a limited lifetime. That being said, only experts like you all could notice such tiny differences. Kind regards.

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #14 Posted by Dan W on 2 Sept 2011, 9:32 p.m., in response to message #1 by Gene Wright Really nice image. I discovered that if one wants really big images, just put the calculator on a flat-bed scanner. The depth of field is sufficient for a sharp image. The real trick is getting rid of all the microscopic bits of dust and lint. At 1200 DPI a speck of dust looks like a boulder. No matter how well I clean it I end up tweaking out the debris in photoshop. Could you post a shot of the back as well?

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #15 Posted by hpnut on 2 Sept 2011, 11:36 p.m., in response to message #1 by Gene Wright I hope the yellow and blue function keys are properly aligned when i receive my 15c LE ;-) hpnut in Malaysia

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #16 Posted by Reth on 3 Sept 2011, 12:51 a.m., in response to message #15 by hpnut I second that, the yellow "f" key is misaligned on the photo.

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #17 Posted by Thomas Radtke on 3 Sept 2011, 3:54 a.m., in response to message #16 by Reth I don't own any Voyager, so I have to ask: Were/are there usually no clearance within the hinge of the Voyager calculators?

Re: Large pic of 15c LE and 30th anniversary - you can download these too Message #18 Posted by Jeff O. on 3 Sept 2011, 1:09 p.m., in response to message #15 by hpnut The yellow (f) and blue (g) shift keys of the new 12c+/15c LE hardware platform are somewhat "wobbly" compared to all other keys. This allows them to look a little mis-aligned. My guess is that they are individual keys, not a part of some overall grid that connects and stabilizes all the other keys. I do not intend to dis-assemble a unit to find out. They work fine, feel fine, just a little wobbly as compared to the other keys, and subject to slight mis-alignment. Been this way since the 12c+ came out.

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