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engineering mom things by mugato - Thu, 06 Aug 2015 03:28:41 EST ID:Oj4vJZ2U No.6763 Ignore Report Reply Quick Reply
File: 1438846121380.png -(103652B / 101.22KB, 539x468) Thumbnail displayed, click image for full size. 103652
Civil Engineering student here
trying to chose my discipline, its either gonna be construction management or structural engineering.
What choose n why
>>
swallowthesun - Thu, 13 Aug 2015 11:53:22 EST ID:Hvx81WU2 No.6769 Ignore Report Quick Reply
Current PhD in structural engineering here.
I would go for structural engineering if you want to be more involved in the structural systems, consulting or academia. Otherwise I would go for management if you want to supervise a site and do a more construction site/planning engineer type of role.


What would you automate by Angus Cavingbanks - Fri, 09 Jan 2015 15:16:13 EST ID:FbnGM6LP No.6611 Ignore Report Reply Quick Reply
File: 1420834573365.jpg -(562721B / 549.53KB, 1600x1053) Thumbnail displayed, click image for full size. 562721
Hi /tesla/

Do you have any projects you wish you could automate? If you had a magic box you could plug anything into and have all of those things work in concert, what would you plug in?
2 posts omitted. Click Reply to view.
>>
James Clezzledidge - Fri, 16 Jan 2015 05:05:19 EST ID:8210sUos No.6621 Ignore Report Quick Reply
The legal system.
Medical diagnosis.
Tax system.

These are far easier goals than physical things being automated.
>>
Augustus Blackwell - Tue, 20 Jan 2015 02:45:11 EST ID:vaz+up9C No.6624 Ignore Report Quick Reply
College education
If were going to pretend blanket memorization teaches anything
>>
M - Tue, 20 Jan 2015 03:11:03 EST ID:06ISvFUq No.6625 Ignore Report Quick Reply
1421741463324.png -(11295B / 11.03KB, 410x284) Thumbnail displayed, click image for full size.
Food production
optimising and automating this would probaly be able to get rid of a lot of problems.

And also; not something to automate but this would really help the advance of sustainable power (I mean wind and solar, not biomass): Large scale, cost effective energy styorage. In my opinion this is holding back the sustainable tech the most at this point.
If there are more people around here interested in a sustainable energy discussion please let me know, I`m happy to discuss this topic and hopefully learn something from you guys!
>>
Eliza Trotham - Wed, 29 Jul 2015 00:52:05 EST ID:K5kwUeJd No.6757 Ignore Report Quick Reply
>>6611
everything.

including government, law, even art.

Bow down to your robot overlords.
>>
Sidney Fablingwater - Thu, 13 Aug 2015 01:33:42 EST ID:m9eqGuJq No.6766 Ignore Report Quick Reply
>>6611

The shower. I would automate my shower. Fuck washing myself. Also, if you don't think this could be industry, people have historically gone to bath houses in many cultures for longer than we have existing records of it. People still pay to use such facilities, even as necessity. Shit, the shower is a bigger motivation for a lot of travelers to get a hotel room than for the bed.

So yeah, bathe me.


The Bong called Excalibur by The Monkey - Mon, 07 Jan 2013 22:29:06 EST ID:8w3o6wlU No.5292 Ignore Report Reply Quick Reply
File: 1357615746699.jpg -(50332B / 49.15KB, 500x419) Thumbnail displayed, click image for full size. 50332
Hi 420 chan engineers i'm no engineer myself but i thought i would be a interesting task to see what kind of kool amazing bong this section ( /tesla/) could come up with ?
12 posts and 4 images omitted. Click Reply to view.
>>
Beatrice Pingerbat - Mon, 18 May 2015 08:05:13 EST ID:dRuzcKFh No.6697 Ignore Report Quick Reply
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DICKS EVERYWHERE
>>
Graham Forringlot - Sat, 06 Jun 2015 02:09:26 EST ID:Y7Wa8/iS No.6708 Ignore Report Quick Reply
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I had this homebrew phase a few years ago during which I built a three chamber hookah out of a small Pom bottle inverted inside a large Pom bottle.
It was pretty rad, but I was living in a dorm at the time, so it could not last. I'm much better at working with plastic now, so maybe I'll try to recreate it some time.
>>
Phineas Grimford - Mon, 22 Jun 2015 08:24:48 EST ID:nbIafuF3 No.6727 Ignore Report Quick Reply
Put either weed or salvia in one of your nostrils.
Use the other nostril as a carb.
That is all you need to do.
>>
Alice Dillymene - Sun, 05 Jul 2015 12:15:39 EST ID:DKM7qcdl No.6732 Ignore Report Quick Reply
>>5292

https://www.youtube.com/watch?v=2D-PFdCup2E

5:30

you wanna hit the motor bong?
>>
randomcunt - Wed, 22 Jul 2015 04:52:00 EST ID:xM6kVlrJ No.6751 Ignore Report Quick Reply
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im way too lazy to ms paint a bong design, but ive always wanted to build a laser powered, induction assisted automatic bong with high accuracy pressure and pull speed tuning, but again, lazy

also already high


Literally What is This.... by Samuel Dimmlemane - Tue, 23 Jun 2015 09:17:55 EST ID:1hLD63BV No.6728 Ignore Report Reply Quick Reply
File: 1435065475843.png -(22835B / 22.30KB, 806x353) Thumbnail displayed, click image for full size. 22835
Literally what is this shit, this is what happens when a professor teaches only the most general fucking cases and expects us to know everything.

I literally don't want anybody doing this for me, I just want to know what direction to head in so I can DO IT MYSELF!!! Just a push in the right direction for how to solve for the temperature profile along the surface.

Thanks.
>>
M - Wed, 24 Jun 2015 05:41:37 EST ID:06ISvFUq No.6729 Ignore Report Quick Reply
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Well first of all, try to find a pdf of 'Coulson & Richardson Chemical Engineering Vol. 6' I`m quite sure there is a pdf hanging around on the 'net of the 4th ed.

Also; I drew something up for your, hope it helps.
and units;
Lambda = W/(m*K)
Alpha = W/(m^2*K)
use meters for the thickness d

If you don`t use SI units, fuck you
>>
Molly Wunkinwater - Thu, 25 Jun 2015 00:28:08 EST ID:a5xmRWEe No.6730 Ignore Report Quick Reply
>>6729
Math'd
>>
Rebecca Gugglebury - Tue, 30 Jun 2015 01:18:33 EST ID:hLtC9Ja6 No.6731 Ignore Report Quick Reply
>>6728
Boundary Layers and Heat Transfer?
I haven't touched the topic in years, but I've uploaded some past work that may or may not be helpful:

http://mehx.net/derp/index.php?dir=school/

Particularly, homework 4


Aspiring EE by Just some guy - Fri, 12 Jun 2015 23:16:43 EST ID:6Ocz9Iwy No.6717 Ignore Report Reply Quick Reply
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Going into uni for EE quite soon, looking for resources to teach myself the very basics of electrical and electronics systems as well as computer science and anything else I might need to know. Basically I'm looking to learn, for now, all I can about the guts of the average house-hold electronic, enough where I can maintain general maintenance and maybe even get a little creative.

What else should I be studying like hell before I get into school that will prepare me, the basics of EE if you will?


Pic unrelated.
>>
Archie Peshmick - Thu, 18 Jun 2015 03:37:19 EST ID:wkP1uJT6 No.6720 Ignore Report Quick Reply
>>6717
You can look up those sites that teach you all about circuits to get a very basic background. Look at the books that universities are using (most have public facing class pages) and use those books to teach yourself as well as online videos. You'll be looking to learn in the EE department: physics, electrical circuits (using mostly passives except op amps), electronics (getting into transistors), signal integrity (if you want to mess with high frequency PCBs), and probably some other stuff I'm forgetting (which you should look at a university curriculum to fill in. On the CS side you need to start learning a language and in the case of embedded programming you'll want to focus on C and assembly (but don't worry too much on assembly yet unless you just want to do x86 and ARM). Get a good understanding of computer architecture and how to work boolean algebra and design things with gates (basic digital logic stuff). Move on to Verilog/VHDL and work with CPLDs and FPGAs if you want to get into custom ASIC work. Learn a real high level language like Python to help you make useful applications that don't need high performance.
>>
Ian Fevingstirk - Mon, 22 Jun 2015 03:24:43 EST ID:g0vSwCXV No.6724 Ignore Report Quick Reply
1434957883896.jpg -(115611B / 112.90KB, 800x600) Thumbnail displayed, click image for full size.
MSEE (to be) here. Browse these at your leisure.

https://www.youtube.com/user/Afrotechmods
https://www.youtube.com/user/makemagazine
https://www.youtube.com/user/TheCesartutoriales
https://www.youtube.com/user/Photonvids
https://www.youtube.com/user/myvideoisonutube
https://www.youtube.com/user/EEVblog
https://www.youtube.com/user/thenewboston
>>
Phineas Grimford - Mon, 22 Jun 2015 08:22:53 EST ID:nbIafuF3 No.6726 Ignore Report Quick Reply
Learn how to write drivers for low level devices and how to program AVRS
It sounds fucking awful, and I'm not going to lie to you, it kinda is, but it's something that they're not going to teach you how to do very well, and something that you're fucking going to need to do more than anything else ever.


li-fi to the next level by Esther Gezzlefadge - Fri, 19 Jun 2015 19:56:15 EST ID:JKp7jUDw No.6722 Ignore Report Reply Quick Reply
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fiber optics are already being used to transfer data but not every machine can be directly connected amirite?
so similar to wi-fi and such is it possible to utilize light in the same manner? like specific wavelengths transmitting to a device that would decode it as binary -

in a bigger scale - would it be possible to construct a massive device that could be thrown into space and transmit a binary.. like a star flickering - we're transmitting radio waves into space right?
would this not work? - also, though i don't know much about what i'm talking about
i think lasers would also be able to do the same, though it would take a precise calculation and such.. but say we sent a satellite somewhere like Saturn and fixed it with a device that would transmit the data back to a receiver with a laser transmission i'm sure it could be done...
just trying to think like aliens - i mean.. imagining that aliens are super far from each other and they have to communicate - light is the fastest known thing so.. i would think that transmitting data in this manner would be the best and fastest way...
>>
Phyllis Sippernore - Sun, 21 Jun 2015 00:35:13 EST ID:FJ+CwDYK No.6723 Ignore Report Quick Reply
>>6722
Any electromagnetic wave travels through space at the same speed as light. So in terms of latency, light communication isn't any faster than normal radio communication that we use today. However, optical communication does provide way more bandwidth than radio. Because light has such a short wavelength, a lot more information can be crammed inside a given time frame.

Getting it to work over long distances is a challenge because it takes a lot of power to generate a light signal strong enough to be detected really far away, and the beam must be focussed at the receiver. Technology is starting to catch up to where we can use optical communication at further and further distances:

https://en.wikipedia.org/wiki/OPALS
>>
Phineas Grimford - Mon, 22 Jun 2015 08:21:12 EST ID:nbIafuF3 No.6725 Ignore Report Quick Reply
There's an interesting research paper about this put out by Disney (Yes, that Disney) about specifically this.
You see, an LED is not only an transmitter, but also a receiver, as there is a slight but still there change in resistance when it receives light input of specified bands, usually split by the plastic coating on it.
Hence you can image that if you were to adapt a device to receive and transmit using only one LED, then you could have two of these devices, and do an I2C style master slave transmission routine, that scales up to an arbitrary amount of devices.
I think they get like, 8kb per second over a tiny ass range, but it just werks though.

http://www.disneyresearch.com/project/visible-light-communication/
(Warning, this will start talking at you without any input, so be aware)


Electric Bike Battery by Fuck Chushmin - Mon, 23 Mar 2015 14:26:44 EST ID:bEWGmaWL No.6671 Ignore Report Reply Quick Reply
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I hope this is the right board for this thread. Basically I forgot to put my electric bike battery into my car before driving off after a ride the other day and managed to reverse over it in a fit of idiocy, cracking the lower part where the battery connects with its cradle on the bike, as seen in the image. It worked intermittently afterwards, cutting out after bumps for a few seconds and otherwise working fine. Now I have opened it up and managed not to electrocute myself, I have discovered there are two loose wires and no other visible damage, which leads me to believe the whole thing can be salvaged (which is good as they are hideously expensive).

What I need to know from you guys is 1) Where does the loose red wire hanging down above the pack itself go? I think it might attach to the other side of the fuse but I am not sure

2) how should I attach the other red wire to the fuse (one with the coil)? What is the purpose of the coil? can I just solder it on?

Thanks in advance for your help, and my apologies for the triviality of this issue, I think my guesses are probably correct but I don't want to make any mistakes and ruin the whole battery.
>>
Nicholas Briffingstock - Mon, 23 Mar 2015 18:05:01 EST ID:7JSxEYqU No.6672 Ignore Report Quick Reply
Eh, I'd google for plans or repair guides for this specific model of battery.

That 'coil' looks like a crooked contact spring to me, (on the top of the picture)
From the looks of it the red wire on the bottom has been broken off next to it.

Before you proceed you'd have to know what wires are connected to what and how exactly the cells are wired. I hope you have a multimeter and know how to use it, right?

The other thing is, I wouldn't mess with a li-ion battery without knowing exactly what I'm doing. There are several things that can go dangerously wrong with them (They can pop release toxic gasses/explode/catch fire if handled incorrectly) And depending on how they are wired it's fairly easy to do something wrong.

I think you should look for a fellow e-bike enthusiast who also runs a shop in your area or try to meet up with somebody if that battery is so important.
>>
Polly Faffingwater - Fri, 19 Jun 2015 04:31:20 EST ID:NiQxsM8d No.6721 Ignore Report Quick Reply
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Judging by the blob of solder on the loose red wire, I'd say it belongs up next to the red wire with the spring, where there is a terminal with a blob of broken solder.

I'm also guessing that is the fuse, so that would tell me that the terminal with the blob of broken solder is not supposed to be touching the red wire with the spring and needs to be bent away so that it does not touch.

Ideally that wire would be soldered in place but if that's not practical you might or might not get away with using a little bit of wire and some tape to tie it into place, remember you could cause a fire inside the battery and subsequent explosion if this connection is not secure and tight. Tight is right.

If that actually is the fuse up there I'd also check its not blown, if it is blown, try replacing it but resist the temptation to bypass it by touching the two red wires back together as it might be a sign the battery is actually fucked.

Also remember that I'm just a guy on the internet and if you try this repair yourself and my advice is wrong you could end up blowing up the battery, but no worries really since its already fucked anyway.. as long as your house doesn't burn down or something because of it.


CS major. Want to design custom cameras by Molly Perryman - Sun, 07 Jun 2015 04:04:20 EST ID:juI5Twgu No.6711 Ignore Report Reply Quick Reply
File: 1433664260946.jpg -(72619B / 70.92KB, 1480x924) Thumbnail displayed, click image for full size. 72619
Title says it all. What should I study as an undergrad/in grad school to be able to have a shot a pursuing a dream? I want to reinvent cameras by breathing new life to established methods. Should I study physics too? Or engineering? What kind?
>>
Reuben Trotdale - Tue, 16 Jun 2015 06:58:44 EST ID:ThzzSwK2 No.6719 Ignore Report Quick Reply
>>6711

you're kind of fucked because camera development is an EE field not a CS one

so, assuming you want to actually make new cameras (ie a shutter system) make a simple security camera with an ardunio or make an older film camera. The quality will be laughably low but you'll learn a lot of important stuff. Also, how much experience do you have with a photo lab?


Drugs and Engineers by Fanny Pandlebanks - Thu, 19 Jun 2014 11:43:21 EST ID:995bEAnC No.6367 Ignore Report Reply Quick Reply
File: 1403192601251.gif -(2511B / 2.45KB, 242x253) Thumbnail displayed, click image for full size. 2511
This is just out of curiosity, /tesla/.
I'm a first year Mechanical Engineering student, and in my uni almost everyone is a regular joe who mainly drinks alcohol at parties and such. I don't know if that's just where I live.
Considering 420chan is an imageboard for people that enjoy doing drugs, and we have an Engineering board, tell me, what drugs do you usually do? Since I don't know any dopehead engineers, I'd like to know what do you fancy the most (Of course, I know that not all of us do drugs. But I'm asking the ones who do).
21 posts and 3 images omitted. Click Reply to view.
>>
Cyril Hommerdit - Sun, 29 Mar 2015 21:05:04 EST ID:5uUE4vv8 No.6674 Ignore Report Quick Reply
>>6673
I hope he knows what he's taking
>>
Phyllis Trotgold - Wed, 01 Apr 2015 16:45:15 EST ID:DKM7qcdl No.6675 Ignore Report Quick Reply
>>6673

you sound like a complete douchebag.
>>
Beatrice Tillinglock - Wed, 01 Apr 2015 22:36:54 EST ID:ZCX58SIS No.6676 Ignore Report Quick Reply
>>6673
Dragon Detected
>>
Martha Nickledale - Fri, 24 Apr 2015 20:03:09 EST ID:YIXh3/Ig No.6685 Ignore Report Quick Reply
Senior in chemical engineering here. About to graduate with a 3.9.

I smoke weed every day. I drink at least four times a week (not counting a beer or two with dinner, which is a daily ritual for me). I do shrooms/LSD occasionally, whenever I have the opportunity to go somewhere cool with my friends to do it (I'm over tripping in my room). I go out/go to parties Thursdays, Fridays and Saturdays just about every week, and maybe some Tuesdays and Wednesdays depending on what's going on.

You can get all kinds of fucked up and still succeed as an engineer, as long as you learn to manage your time. If you do your work in the late afternoon/early evening, then you can drink, smoke pot and do whatever in the night. I've never had to pull an all nighter for school work.

Another big thing is go to class. Maybe you're still in the high school phase where everyone goes to every class, but as you go on in engineering, you'll see a lot of people who just don't show up. Most of my classes are usually about 50% full. People skip class, don't know what's going on, then get wrecked on exams, and act surprised. Just go to class.

Anyway, I hope you find some cool engineers to get stoned with.
>>
Albert Necklenark - Sat, 13 Jun 2015 00:24:56 EST ID:RMl5Qdtt No.6718 Ignore Report Quick Reply
>>6675
Why does he sound like a douche bag, it doesn't say anything about him telling the guy its not what ever it is. And hopefully dude would be smart enough to realize it doesn't have an imprint on it


ZAMA Carb Problems by Eliza Billinglock - Fri, 05 Jun 2015 17:29:41 EST ID:cymD6AGd No.6706 Ignore Report Reply Quick Reply
File: 1433539781384.jpg -(38518B / 37.62KB, 500x666) Thumbnail displayed, click image for full size. 38518
Hey /tesla/

I recently took apart an old TORO weed whacker that hadn't run in like 12 years, and got it running...briefly. It started up for like 2 seconds, and shut down.
I figured out after pulling the cord a bunch of times that the engine was being flooded. This was indicated by fuel spitting out of the exhaust. So I sat and thought about it and disconnected the fuel intake line from the carburetor. Sure enough, after a few pulls on the cord, it started up and ran for a good 8 seconds with a few revs before it shut down. So it ran on magic.
So it's either getting too much fuel, or not enough air. Too much fuel I'm thinking.
I can't find anything on how to adjust an old ZAMA carburetor online though. They're all newer models. This one doesn't have the priming bulb.
Thoughts?
Cheers.
>>
Nicholas Gerrywit - Sat, 06 Jun 2015 13:14:04 EST ID:cymD6AGd No.6709 Ignore Report Quick Reply
>>6706
Bump?
>>
Sophie Minnerfotch - Sat, 06 Jun 2015 20:42:28 EST ID:a5xmRWEe No.6710 Ignore Report Quick Reply
>>6706
pictures of carb plz

does it have any adjustment screws on it? I would start messing with those, just monitor how much rotation you apply so you can reverse it. also get some new premium gas from a clean can, and check the spark plug. also check any filters that could be affecting fuel flow.
>>
Edwin Cogglestock - Sun, 07 Jun 2015 09:47:20 EST ID:cymD6AGd No.6714 Ignore Report Quick Reply
>>6706
I think I'll have to adjust the amount of fuel that's allowed by sealing the end of the fuel line and making a needle puncture sized tiny aperture thingy. That might do it...
>>
Walter Dendleped - Sun, 07 Jun 2015 21:13:18 EST ID:cymD6AGd No.6715 Ignore Report Quick Reply
>>6714
Okay, that didn't really work any better. All it did was make the fuel move through the line slower, which meant a bunch more pulls just to have it run for like 4 seconds. So, maybe it needs more air AND less fuel. Here are a couple images that resemble it. It's late and I don't feel like going down to the garage to get a better look for a model number on it. All the fuel is nice, and the spark is ferocious. I may just disassemble the carb again. Maybe the problem is the needle is too loose?

https://www.google.com/search?q=zama+carburetor+old&rlz=1C1ASUT_enUS464US464&espv=2&biw=1366&bih=643&tbm=isch&imgil=NWT0l7pAX88lfM%253A%253BJgDHLaL68sqwHM%253Bhttp%25253A%25252F%25252Fwww.youtube.com%25252Fwatch%25253Fv%2525253D1LTKTrwZUaM&source=iu&pf=m&fir=NWT0l7pAX88lfM%253A%252CJgDHLaL68sqwHM%252C_&usg=___TiJhyUzMHjBG3ASBJ2pkvZE-A8%3D&ved=0CCcQyjc&ei=xul0VYnBGovJtQWx54DgDA#imgdii=NWT0l7pAX88lfM%3A%3BNWT0l7pAX88lfM%3A%3BK4O2vYnt2fjMKM%3A&imgrc=NWT0l7pAX88lfM%253A%3BJgDHLaL68sqwHM%3Bhttp%253A%252F%252Fi.ytimg.com%252Fvi%252F1LTKTrwZUaM%252Fmaxresdefault.jpg%3Bhttp%253A%252F%252Fwww.youtube.com%252Fwatch%253Fv%253D1LTKTrwZUaM%3B1920%3B1080

and

https://www.google.com/search?q=zama+carburetor+old&rlz=1C1ASUT_enUS464US464&espv=2&biw=1366&bih=643&tbm=isch&imgil=NWT0l7pAX88lfM%253A%253BJgDHLaL68sqwHM%253Bhttp%25253A%25252F%25252Fwww.youtube.com%25252Fwatch%25253Fv%2525253D1LTKTrwZUaM&source=iu&pf=m&fir=NWT0l7pAX88lfM%253A%252CJgDHLaL68sqwHM%252C_&usg=___TiJhyUzMHjBG3ASBJ2pkvZE-A8%3D&ved=0CCcQyjc&ei=xul0VYnBGovJtQWx54DgDA#imgdii=liHkS_y8P1iwjM%3A%3BliHkS_y8P1iwjM%3A%3BeSFwL424H_CaRM%3A&imgrc=liHkS_y8P1iwjM%253A%3BfgEJ9EaD1prm7M%3Bhttp%253A%252F%252Fimagizer.imageshack.us%252Fv2%252F1024x768q90%252F840%252Fdsc05249x.jpg%3Bhttp%253A%252F%252Fwww.selfhelpforums.com%252Fshowthread.php%253Ft%253D47895%3B1024%3B768
>>
William Bardson - Sun, 07 Jun 2015 21:35:36 EST ID:a5xmRWEe No.6716 Ignore Report Quick Reply
>>6715
I dunno man. I don't know much about carburetors. But I would also check airflow/filter.

Here's a link that might help
http://www.briggsandstratton.com/eu/en/support/faqs/adjusting-the-carburetor


Concrete Formula for small/medium size objects by Polly Chorringdock - Wed, 18 Mar 2015 16:48:17 EST ID:7JSxEYqU No.6665 Ignore Report Reply Quick Reply
File: 1426711697231.jpg -(984167B / 961.10KB, 2048x1536) Thumbnail displayed, click image for full size. 984167
I am looking for a good concrete formula to pour into molds.
Currently I am using this: 2 parts portland-composite cement (CEM II), 1 part Sand, 1 part water.
I'm ok with the consistency of the mixture, it flows enough to be poured into the molds and it represents details well enough.

The problem I have with it that the surface is dusty to the touch, I'm looking for something that you can wipe fingers over it and they stay clean.
It should also be able to be done using common hardware store ingredients, and not be in the price range of specialized mixtures sold for this purpose.

The final project should be to make viable speaker enclosures with the concrete poured cnc machined EPS foam molds.
Any additives are fine as long as they are non-toxic and not expensive.

I've read about steel wool for instance.
3 posts omitted. Click Reply to view.
>>
Oliver Hocklestock - Sat, 25 Apr 2015 14:41:17 EST ID:crpd18/b No.6686 Ignore Report Quick Reply
Old thread, OP did you ever consider wax paper?
>>
Hamilton Billingridge - Tue, 28 Apr 2015 10:49:02 EST ID:a5xmRWEe No.6688 Ignore Report Quick Reply
>>6686
wat
>>
Oliver Candleswatch - Mon, 04 May 2015 13:45:43 EST ID:BxGNplro No.6689 Ignore Report Quick Reply
>>6665
Sounds like the concrete hasn't properly cured. You should look up immersion curing, especially since your water to cement ratio is below .4 which will cause a tendency for it to dry out. Long story short, after the concrete sets, you need to immerse it in water for a period of time for the cement hydration to complete. The amount of time will vary greatly on temperature/etc., but that should help you out I hope?
>>
Molly Perryman - Sun, 07 Jun 2015 04:16:45 EST ID:juI5Twgu No.6712 Ignore Report Quick Reply
powdery feel is dried out concrete. concrete can be finished with stains too which can look quite fantastic if done right. most are water based, perhaps hydrate in a stain?
>>
Molly Perryman - Sun, 07 Jun 2015 04:18:58 EST ID:juI5Twgu No.6713 Ignore Report Quick Reply
omg OPEE pls do like a batik technique with red and maybe blue dye. then use a polishing from 60-200 grit. maybe dye after? IDK lol


how do I into muhsheen by Walter Follerkog - Sat, 16 May 2015 08:11:57 EST ID:zW9F9Fu+ No.6694 Ignore Report Reply Quick Reply
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What's the component of (what I assume machine) engineering education that makes one machine-savvy?

I'm an upstart 3D artist and I view the huge popularity of organic and fantasy-themed work among amateurs as a result of people in general lacking technical education. We just don't know shit about how anything works, we don't recognize, interpret or memorize individual mechanisms etc. Picrelated is a good example, I have just the foggiest idea why that hatch looks the way it does and I'd never reproduce most of the detail it has (I'd do a mostly featureless "Apple" casing). If I had to flesh out the innards of some factory ruins I'd have to spend a day googling stuff before even getting an idea on how it's supposed to appear, let alone withstand any scrutiny.

Even mainstream fiction's partially dominated by fantasy (when you throw out all the non-fictitious settings), you can get away with shit, man made environment is hardly ever the focus (unless were talk glowing magical gems or swords). Sure it gets botched as well, but it's easier to brush off, since it's not supposed to be historically accurate and muh magic (boy, I sure wish Vikings had that excuse). Sci-fi on the other hand... it's pretty easy to ruin the enjoyment of something through sheer ignorance the author displays.

So, how do I educate myself (on the internet, for free)? I obviously don't need to learn much about materials or the math as I'll never attempt to build anything, but I want to make believable looking machines. Even for people who know their shit. I want to be confident I can deliver something nobody will cringe painfully at.
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James Cirringkit - Tue, 19 May 2015 09:05:59 EST ID:cymD6AGd No.6699 Ignore Report Quick Reply
>>6694
Check out edX. Open courseware from top colleges and universities. I'm auditing a bunch of courses right now. Mostly science stuff.
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Phyllis Niggerford - Thu, 28 May 2015 12:53:57 EST ID:crpd18/b No.6701 Ignore Report Quick Reply
Mechanical Engineering is mostly about the physical deign principles, yeah.
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Molly Wammernane - Tue, 02 Jun 2015 16:06:49 EST ID:uaN8rW3i No.6704 Ignore Report Quick Reply
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>>6694

for that hatch, it's the weak point in a vessel that has to withstand a lot of pressure. the spacecraft (?) is a giant balloon, and that hatch is like sewing a patch into it. maybe it' still has to work even if something dents the outside.

in my opinion, it's better to understand the concepts and extrapolate the details, rather than copying the details (which may not make sense out of context).


>>6696

thanks for this post, I love those links
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Oliver Copperway - Thu, 04 Jun 2015 21:43:25 EST ID:JFQ3oC7N No.6705 Ignore Report Quick Reply
I went to an engineering school, though my focus was more in the area of chemical engineering.

In any case, at some point, I decided I wanted more "machine-savy," which I took to mean understanding how things are actually assembled and function in the real world. In the end, I took a course in machining metal, on mills and lathes. It was at a trade school, and rather intense (3 hours per day for two semesters), but I think it gave me a perspective of these things which would be hard to get in other ways.

At one level, we were making things like threaded screws or teeth on gears. There is a lot of nuance to the design of these things, which doesn't come out unless one is designing or building them. At another level, the machines themselves (the mills, lathes, and others) had intricacies which had to be understood. Which gears to use, how to align belts or shafts, etc.

Short of going through a full course in manufacturing engineering to see all the methods by which things are made, I highly recommend the series of YouTube videos by Dan Gelbart. The man has a ton of patents, and is easily a multimillionaire from his inventions, but takes the time to sit down in an amazing shop (his personal, home shop, that would rival those in many universities or tech firms) and create detailed tutorials. If you go through the 18 videos, I guarantee you'll see the various manufactured objects around you in a different light.

For your viewing pleasure:
http://makezine.com/2015/03/20/18-lessons-smart-prototyping-self-made-billionaire/
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John Sebberhall - Fri, 05 Jun 2015 23:23:28 EST ID:JFQ3oC7N No.6707 Ignore Report Quick Reply
Also recommend this one, not so much for its instructional value as that it is pretty fun to watch when blazed.

https://www.youtube.com/watch?v=Y5pen3QMgzQ


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