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Split-Etched Acrylic Postcard - Optical Trickery

Split-Etched Acrylic Postcard - Optical Trickery
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If the postal workers don't hate me now, this laser-etched piece might turn them to the dark side. If I'm lucky they'll have a fondness for optical tricks and get this postcard to the right place.

On this thick piece of acrylic I sliced up the addresses into two images and etched each one on opposite sides. the only way to look at the thing and make any sense of it is to close one eye and carefully move it around to change the angle.

With no changes to the bottom image in terms of distortion or size it's impossible to line up the front and back to make the whole address "pop" into view. You can't even get a whole zip code to line up just right. And yet it's still readable if you put just a tiny bit of time into it. So it should make it through. I even put Priority Mail postage on this one for an extra boost through the system.
 
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Step 1Make the Postcard Design

Make the Postcard Design
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For all the steps here, I used Illustrator CS2, but this is very simple stuffe and can be asily done in other graphics programs.

This card is a little bigger than normal at 7x5, but the rounded corners will make it a bit friendlier. Don't want anyone to poke themselves with this thing, right?

Now just plop in the addresses. Good old Flibberty and Howard get to resume their communication in this example. Thanks, guys!
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43 comments
1-40 of 43next »
Jul 30, 2008. 6:36 PMwuggums47 says:
lol the mail men r gunna get u
Nov 18, 2006. 9:58 AMpsychomailman says:
(removed by author or community request)
Jul 12, 2008. 3:15 PMfordman15243 says:
does anybody else think that his screen name fits him??? cuz I think it's f--king hilarious!!!
Apr 22, 2008. 6:52 PMburningsuntech says:
Hmmm. What fine representative of the USPS and our government you are!
Apr 22, 2008. 5:35 AMChancreScolex says:
I think maybe you should go back on your medication...
Apr 22, 2008. 1:52 AMTinker83 says:
its called pay by phone - or direct withdrawal if youre lazy like me. the USPS is dying and you're just bitter. crybaby.
Apr 21, 2008. 4:31 PMjaysbob says:
Newman?
Apr 2, 2008. 1:59 PMBig Bwana says:
oh come on, it's not like he mailed an activated dollar store personal attack alarm, go on throw it away it'll beep in the trash for then next week .....
Mar 20, 2008. 10:27 PMFull Frontal Graphic says:
I'm gonna take this as parody, and assume in good faith that this is meant to "be nice" ... for me the 'nicest' part is : ..."mess with the mailman---I got news for you--when you bills and mortagage payments don't make it on time remeber what I said--we throw those out too!! especially from the douchebags that mail shit like this trying to funny--remeber we know where you live!!" just don't go postal on us.
Nov 15, 2007. 7:45 AMbobulator says:
Is this conforming with the 'be nice' policy? Hmm...
Nov 23, 2006. 3:16 PMViolaRen says:
you=pycho... yes... illegal... also yes...
Dec 5, 2006. 1:46 AMGnaw says:
I can’t stop laughing, I feel more enticed than ever to try this! Looks like you struck a nerve fungus.
Apr 27, 2008. 4:49 PMgnat says:
What about multiple layers of acrylic? Or staggering the text so it has to be read at an angle? It would take more finesse with photoshop but I think it could work.
Apr 27, 2008. 2:47 PM=SMART= says:
very cool :D
Apr 22, 2008. 5:08 PMAerospaced says:
Hey fun, great gag. As for the dink who went off earlier, fughetabotit! The optical reader uses a single camera to look at the image, therefore it can see the addy. Maybe you could send clandestine data using an encrypted message etched in this fashion? If you really want to screw with the mail, just use bar codes. The machine can read those too.
Apr 23, 2008. 9:28 AMbushwhacker! says:
Whoa! That's an awesome idea! I should totally try that.
Aug 15, 2007. 8:16 PMrc jedi says:
I can't remember all the stuff that has been stolen in transit to my house. Warning: if your stuff gets sorted in corpus christi tx, then ship by fed ex or ups. A trick they use , birthday card money theft. They tear a small hole in the corner off, straighten a paper clip, now bend a sharp hook back on itself. this is inserted into the hole. now spin the clip, it rolls up the money grandma sent you and forms a tight roll that can be pulled out the hole. Now they get the money, and they can still deliver the envelope "unopened"
Apr 22, 2008. 7:02 PMburningsuntech says:
Well they might think they can get away with it but the Gov takes postal theft very very seriously. I've been in a regional sort center and you are watched constantly. If your caught, you go directly to jail and do not collect your $200. If anyone thinks a Fed Pen is a club, Think again.
Apr 21, 2008. 6:57 PMsolo.card says:
I like it. If only I had a laser cutter! I hate this website. Every time I browse it my "need" for a laser cutter and or sewing machine increases...
Apr 22, 2008. 3:01 PMTrebawa says:
I know... it can get so I have to close the window and weep for a while...
Jan 7, 2007. 1:42 PMcooy says:
Apr 21, 2008. 8:09 PMsrhadaham says:
i know u wrote this almost a year ago but oh well. if that think breaks i dont think i would trust ur mail cause that looks like 1/2 inch plexi and that would take a lot of force to break a piece that small
Apr 21, 2008. 7:00 PMsolo.card says:
Also, a query; Can you print your own postage stamps directly onto your envelopes over your side of the pond? If so, would laser-etching the stamp onto a piece of acrylic do anything to bug the postal people?
Dec 26, 2007. 5:51 PMYerboogieman says:
does the name on that one say McLOVIN?
Apr 15, 2008. 8:26 PMGorillazMiko says:
Where?
Apr 16, 2008. 6:55 PMYerboogieman says:
no, it says ed lewis
Apr 21, 2008. 4:48 PMcvxdes says:
Same number of letters.
Jan 15, 2007. 11:32 PMAestheticxtattoos says:
psychomailman is a real nut job. Luckily for him I'm gona try this neat little DIY.
Dec 9, 2006. 5:55 PMKiteman says:
You posted this Instructable just over a month ago - did the card ever arrive?
Nov 6, 2006. 6:43 PMmrmath says:
Fungus, Can you please do an instructable on the etching part. I have no clue how one would go about etching anything in anything... Thanks!
Nov 8, 2006. 4:01 PM_soapy_ says:
You could try using a printer transfer or something. If you did the same trick on two transparencies, then glued them on either side of a bit of acrylic, you could have the same effect for a lot cheaper than the laser engraver. You could also send a secret message by printing aligned dots in various colours. To read it, you use a colour filter and align the template to just the right place. You then send the message, and the person at the other end decodes it. Anyone else sees random dots that shift when veiwed. Even further, you could use this to do an auto-stereogram!
Nov 18, 2006. 7:53 AM_soapy_ says:
I'll have to leave that to someone else, since I don't have an inkjet printer. Perhaps if I can find some laser transparencies...

(Top tip: don't send secret messages from colour laser printers, each one has a secret yellow dot code that IDs the date, time and printer! See http://www.google.co.uk/search?q=laser+printer+secret+dots )
Nov 6, 2006. 5:15 PMAndrew546 says:
I bet your mailman just absolutely loves you :p
Nov 7, 2006. 8:47 PMMyself says:
You entering this in the Return To Sender contest?
1-40 of 43next »

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Author:fungus amungus(my site)
I like to make things both useful and odd. The odd projects are usually more fun. I'm also the Content Manager here at Instructables. Follow @edabot for more