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Stairclimber wheels by Samuel Hunderwidge - Sun, 19 May 2013 11:31:09 EST ID:t6Yu9g/A No.5663 Ignore Report Reply Quick Reply
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So how come these never caught on?
>>
Samuel Hunderwidge - Sun, 19 May 2013 11:53:40 EST ID:t6Yu9g/A No.5664 Ignore Report Quick Reply
Landmaster scenes from Damnation Alley
http://www.youtube.com/watch?v=ZZYT2nYd46o

Interview with Dean Jefferies.
http://www.youtube.com/watch?v=26n3RsXNyKE
>>
Matilda Drirringstock - Wed, 22 May 2013 01:36:05 EST ID:yDZgLh4u No.5683 Ignore Report Quick Reply
Because noneed, the third world barely civilized societies america invades don't have stairs
>>
Isabella Pickshit - Fri, 24 May 2013 08:18:08 EST ID:61FQy/W4 No.5692 Ignore Report Quick Reply
why dont i just get a bigger wheer that will climb over it either way?


Babby's first statics class by Aneurysm inc. - Fri, 24 May 2013 03:34:21 EST ID:3ua1/t/G No.5691 Ignore Report Reply Quick Reply
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Here's a bit of HW I can't turn in anymore, but don't understand because I wasn't in class for this particular material. Too many moments, too many unknowns for me to zap this one off the top of my head.

How do?


Dress Code by George Turveyfoot - Tue, 17 Jul 2012 03:07:13 EST ID:HE1OeKk4 No.4512 Ignore Report Reply Quick Reply
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For those working in Engineering professions, what is your dress code like? What is common across the industry?

I am going for an EE major so I am especially interested in that.
14 posts and 1 images omitted. Click Reply to view.
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Nathaniel Clunnerman - Wed, 15 Aug 2012 16:58:41 EST ID:Pjytneps No.4677 Ignore Report Quick Reply
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>>4627
Like this guy ?
>>
Martha Pockridge - Sun, 19 Aug 2012 06:40:59 EST ID:4vQ3OAOS No.4680 Ignore Report Quick Reply
Where I work the young engineers wear hoodies at work, the rest dress how they dress. T-shirts to dress shirts. The only guy who I see wear a suit is the boss of the department.
>>
Alice Fuckingshaw - Sun, 19 Aug 2012 09:37:03 EST ID:x9k2CuBx No.4681 Ignore Report Quick Reply
My workplace is so damn hot that most of the time we don't wear more than a coverall and boxers against the chafing. And we try to have the coverall cover as little of our body as possible unless it needs, so pretty much just 'jeans' and a boxer most of the time
>>
Sidney Dondernadging - Tue, 21 May 2013 15:36:04 EST ID:jomR4p6U No.5679 Ignore Report Quick Reply
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Clutch the dark purple hairs of the galloping orangutan of normalicy and ride, nigga ride!
>>
Jarvis Crozzlenodging - Thu, 23 May 2013 08:42:40 EST ID:61FQy/W4 No.5689 Ignore Report Quick Reply
>>4512
is that fucking interpol?

my dads a programer with a degree in EE, he wears polos and jeans on the reg.


Advice by Augustus Sillersuck - Thu, 16 May 2013 00:43:25 EST ID:COqBFVmZ No.5652 Ignore Report Reply Quick Reply
1368679405255.jpg -(48257 B, 605x453) Thumbnail displayed, click image for full size. 48257
I hate to be that guy but I could really use any advice pertaining to the construction of bridges. We have a competition in my AP Physics class for the most efficient bridge made out of balsa wood and my gpa basically rests on this bridge, as it is the final. I was thinking of creating a warren truss with an arched top and horizontal planks for support of the roadbed, and was just wondering if anyone could give me a step in the right direction. Thanks in advance :)

Pic is close to what I intend
>>
Wesley Girringkod - Fri, 17 May 2013 12:08:10 EST ID:ji69B8v/ No.5656 Ignore Report Quick Reply
>>5652
look up the gothic arch, they're difficult to construct out of balsa, but if you make an effective jig to form it, they can be insanely strong.

I made a 2' tower out of balsa using 4 gothic arches, and it held 136lbs. it weighed less than an ounce.
>>
Wangdang Poontang - Wed, 22 May 2013 20:33:56 EST ID:NGtyNLow No.5687 Ignore Report Quick Reply
Back in my day, all the fancy suspension style bridges made of balsa for this test failed miserably. It's a great design with heavy materials IRL, but doesn't scale well to a brittle wood. The design that held the most while still remaining light was basically a straight mimicry of cardboard, plain and simple.


engine swap not sure how to do. by Fuck Cipperwater - Sun, 12 May 2013 09:40:01 EST ID:mOTxuWnQ No.5644 Ignore Report Reply Quick Reply
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how can fit a 347 cobra engine into my 04 saab aero.? i have plenty of tools for metal works but i dont work on cars.
>>
Angus Trotdale - Sun, 19 May 2013 16:14:40 EST ID:Z7WKqEWi No.5669 Ignore Report Quick Reply
1368994480857.jpg -(137359 B, 1280x1010) Thumbnail displayed, click image for full size. 137359
>>5644
this is awesome, please do it
also, you will need someone who has done an engine swap before (or atleast replaced an engine)
>>
Matilda Drirringstock - Wed, 22 May 2013 01:33:55 EST ID:yDZgLh4u No.5682 Ignore Report Quick Reply
you're gonna need a crane
>>
Cyril Blackhall - Wed, 22 May 2013 14:57:03 EST ID:+1J9rO3X No.5685 Ignore Report Quick Reply
>>5682
and a crance for the crane


Logging data from sensors and plotting data by Jack Breffingkat - Mon, 20 May 2013 00:08:27 EST ID:N2gcVF14 No.5670 Ignore Report Reply Quick Reply
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So I am designing something for a friend. I am not very far into my basic of basics electric circuits book, and I've hit a wall. The device itself is very simple, just 2 CDS cells acting as a voltage divider. I want to take a snapshot of the voltage output...say every 100ms and be able to plot this over time

I haven't the slightest clue where to start with logging the data and being able to plug it into a computer.

The end user is basically illiterate in these things, and I want them to be able to see what is happening with the device, without them getting frustrated.

I have about 4 months to figure this out.
>>
Jack Breffingkat - Mon, 20 May 2013 00:12:20 EST ID:N2gcVF14 No.5671 Ignore Report Quick Reply
I should also mention that I would preferably log to an SD card, not having the device tethered 24/7. nb
>>
Cyril Murrybanks - Tue, 21 May 2013 16:47:22 EST ID:/PYTFAuP No.5680 Ignore Report Quick Reply
You can import values into the office packet and make graphs and staples out of it

I think it even can do live plots with a ODBC driver


Oh shit lol by Graham Fussletitch - Mon, 29 Apr 2013 13:03:31 EST ID:na3H4o6F No.5604 Ignore Report Reply Quick Reply
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http://chestofbooks.com/crafts/popular-mechanics/The-Boy-Mechanic-700-Things-for-Boys-to-Do/How-To-Make-A-Glider.html

This is like a Boys Own Spectacular Suicide manual.
No, seriously, how bad an idea is this?
>>
Doris Burrymodge - Sun, 05 May 2013 02:38:04 EST ID:1/RGVUTh No.5621 Ignore Report Quick Reply
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i dont know OP why don't you find a nice, high cliff, give it a shot and report back with pictures your death.
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Betsy Cinningfut - Mon, 06 May 2013 10:20:57 EST ID:Adk1msWC No.5625 Ignore Report Quick Reply
>>5621
Fuck you, you shitposting faggot.
>>
Faggy Snodville - Mon, 06 May 2013 14:06:49 EST ID:U05tYzlp No.5626 Ignore Report Quick Reply
I hate this age where you have to be a fucking certified genius to legally build a toy of wood twine and tarp

Stop being a pussy OP
>>
orville wright - Sun, 12 May 2013 21:00:14 EST ID:mCS3dD2d No.5646 Ignore Report Quick Reply
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do it, but with a 2hp motor and a prop.

jolly good fun.
>>
Samuel Hunderwidge - Sun, 19 May 2013 12:16:34 EST ID:t6Yu9g/A No.5668 Ignore Report Quick Reply
Careful, you could land on these assholes.
http://www.youtube.com/watch?v=InVcH_6gWYE

Two long poles and some heavy cloth? (everyone runs away) OH WAIT


Lathe Reaming by Isabella Sunkinfat - Mon, 08 Apr 2013 12:22:00 EST ID:gdeb+MXi No.5553 Ignore Report Reply Quick Reply
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Don't know if there's anyone here who took the apprentice route into engineering but il ask anyway, occasionally when reaming a hole using a lathe the hole ends up a few thou' oversize e.g a 1/2" reamer producing a 0.504" hole and i dont know why because the reamer seems to be in good condition
1 posts omitted. Click Reply to view.
>>
Betsy Nublinghood - Mon, 15 Apr 2013 20:22:33 EST ID:EWvw2Li1 No.5568 Ignore Report Quick Reply
>>5553
your work may not be sitting exactly flat on the collet. make sure there's no burrs on it (or the part itself) when you clamp it down. What are your feed/speeds like? material? Like the above poster said, a slower speed might help.
>>
Betsy Nublinghood - Mon, 15 Apr 2013 20:23:09 EST ID:EWvw2Li1 No.5569 Ignore Report Quick Reply
>>5568
also make sure the part is getting enough coolant
>>
some guy with opinion - Fri, 26 Apr 2013 14:42:36 EST ID:IODwa9Nn No.5600 Ignore Report Quick Reply
is the lathe sitting on complete level ground? also try finding a good speed if its to slow it will heat up fast resulting in overusing coolant, just pay attention to the speed and the color of the metal, make sure its fairly clean of burs and don't speed up slow down whilst in motion.. test an offcut before you find the correct drilling speed
>>
some guy with opinion - Fri, 26 Apr 2013 14:46:57 EST ID:IODwa9Nn No.5601 Ignore Report Quick Reply
i can post a similar picture to you from my engineering book for you if that will help?
>>
Cyril Fimblehood - Thu, 16 May 2013 06:38:28 EST ID:kz85WsFR No.5653 Ignore Report Quick Reply
could the reamer be 2 thou of centre?


Custom PCB services by David Goodworth - Sun, 12 May 2013 21:59:26 EST ID:ZCsBFmhA No.5647 Ignore Report Reply Quick Reply
1368410366720.jpg -(84180 B, 600x411) Thumbnail displayed, click image for full size. 84180
Anyone here know of a good site for ordering small batches (<5) of custom PCBs? Need some 4 layer boards.
>>
Jack Peddlewell - Sun, 12 May 2013 23:55:35 EST ID:4TXNiIqH No.5648 Ignore Report Quick Reply
>>5647
If time isn't an issue, try oshpark.com. It's a batch pcb service, so you're limited to the standard stackup, and the turn time can be a few weeks. but that's probably going to be one of the cheapest routes.

If you have a little more money to spend, silvercircuits.com is also a good deal with a slightly quicker turn time. Plus they are good about working with you on more complex designs (plated slots, cutouts, odd shapes, etc.)

If speed is your priority, there are services like pcbfabexpress and protoexpress that can get it done in less than a week, but prepare to pay much more for a 4 layer board.

I've used all of these services in the past and haven't had any issues.
>>
Cornelius Bivingnick - Wed, 15 May 2013 21:54:45 EST ID:pN01ULQG No.5651 Ignore Report Quick Reply
>>5648

Thanks man, I'm gonna shoot oshpark an email.


Concrete walls with ridges by Ian Nerringbury - Sat, 11 May 2013 02:00:51 EST ID:qDfqjsMS No.5635 Ignore Report Reply Quick Reply
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Is there any structural purpose for this? It's not supposed to be for aesthetics, is it? It's ugly, and shit builds up in the crevices.
1 posts omitted. Click Reply to view.
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Nigger Susslechuck - Sat, 11 May 2013 15:45:42 EST ID:xoknM1yD No.5639 Ignore Report Quick Reply
It's stronger than a flat wall using the same amount of concrete. It's just the concrete equivalent of corrugated cardboard...
>>
Eugene Pondlehetch - Sun, 12 May 2013 08:12:01 EST ID:Jr33UkvF No.5643 Ignore Report Quick Reply
>>5639
sounds legit, could you tell me more?
>>
Matilda Fettinghock - Sun, 12 May 2013 10:53:06 EST ID:nwxojBqh No.5645 Ignore Report Quick Reply
>>5643
http://en.wikipedia.org/wiki/Second_moment_of_area
>>
Ebenezer Figglefield - Mon, 13 May 2013 16:26:06 EST ID:LoGagJJL No.5649 Ignore Report Quick Reply
>>5645
>The specific problem is: The article is fundamentally wrong and packed with errors based on the authors' poor understanding of the subject.

:/
>>
Nigger Hongerfield - Tue, 14 May 2013 09:49:15 EST ID:AInfxL6X No.5650 Ignore Report Quick Reply
>>5649
didn't proofread, but the formulas are right, that's really about the limitation of my intrest, if you want a better/more accurate verbal explanation just torrent a statics book.


Engineering a backyard forge. by Archie Breffingsut - Sat, 11 May 2013 12:37:51 EST ID:++Jn5hyH No.5636 Ignore Report Reply Quick Reply
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So for the past couple weeks I've been interested in blacksmithing, so in my attempt to start I've managed to make a half ass'd furnace out of a camp fire pit in my back yard. It works well enough to heat the iron to a nice workable temperature. I was wondering if anyone has pictures of ideas of a brick built fireplace that has a proper air intake to reach optimal temperatures easier.
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Archie Breffingsut - Sat, 11 May 2013 12:39:42 EST ID:++Jn5hyH No.5637 Ignore Report Quick Reply
I'm planning on using a shop-vac on a blowing setting as my bellows soon for my next iteration of the design. nb
>>
Rebecca Nindleshit - Sat, 11 May 2013 23:16:16 EST ID:f7vl+q0O No.5642 Ignore Report Quick Reply
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>>5636
There are a couple of ways to go about this. you can either make a charcoal/coke forge, or a propane forge.

I highly recommend propane, although it's slightly more difficult to build. it still only takes simple plumbing parts, a bit of welding, and an empty propane tank.

if you go for the solid fuel forge, then a grill can be pretty easily modified into a workable forge, or even a brake drum can be effective, but you'll need to buy/make a blower.

http://www.zoellerforge.com/simplegasforge.html
here's an idea of a gas forge

http://www.arscives.com/bladesign/forge.tutorial.htm
this one is better

http://www.bladeforums.com/forums/showthread.php/845017-Charcoal-Forge-Build
here's an idea of a simple charcoal forge.
Comment too long. Click here to view the full text.


Where to find knowledge by Financially challenged student - Sat, 11 May 2013 19:16:29 EST ID:RqK0DV1Q No.5641 Ignore Report Reply Quick Reply
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Currently looking for "John Bellamy Digital Telephony" eBook

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