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Instrument cable instead of speaker cable?

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- Wed, 29 Jun 2016 19:07:44 EST wpTfjl5n No.6972
File: 1467241664728.jpg -(626424B / 611.74KB, 1025x659) Thumbnail displayed, click image for full size. Instrument cable instead of speaker cable?
I let friends use my fucking sound system and I found out they ran instrument cable instead of speaker cable from the powered mixer to the speakers for their dance music show and now a.) there was popping for like 3 seconds mid sound-check the next day but hasn't happened since and b.) the power amp limiter LEDs come on for two seconds right when you start it up but has yet to come on any time after that. Should I be worried? This system is brand new and I'm really upset about this.

Pictured is the power amp used. The manual doesn't say anything about what the limiter lights are supposed to do at startup so I don't know if that's normal.
Simon Hummlenot - Wed, 29 Jun 2016 23:44:42 EST LMSWX1C6 No.6973 Reply
/m/ Might be the proper board.

How many amps does it dump out the powered end, and how long was the line? If itt was a small 18ga instrument patch, under several amps, and wasn't remotely pushed to peak, it was probably not an issue.
Was the pop like when you plug in a line? That might be a loose jack issue.

Thing two. Don't lend gear unless it's a beater, or you know the individual will buy you a new one it they damage it(this works with coworkers, because you know they have actual income).

DIY underwater home

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- Thu, 04 Feb 2016 17:45:26 EST S8hxXMl5 No.6894
File: 1454625926381.jpg -(273224B / 266.82KB, 1920x1080) Thumbnail displayed, click image for full size. DIY underwater home
possible? i know it is possible but i'm talking about the average person
8 posts and 1 images omitted. Click View Thread to read.
Martha Fimmleman - Tue, 19 Apr 2016 21:41:14 EST JT+zLDlO No.6947 Reply

LMFAO this brings back memories. Thank you so much anon.
Shitting Gottingstodge - Thu, 21 Apr 2016 19:08:38 EST uywTW9Q3 No.6949 Reply
How the heck would you build that? I feel like having an air-lock and a system to keep the interior at 1 bar pressure alone would cost more than $100,000.

I feel like the most feasible, cost-effective option here would be to build a giant ventilation duct that sticks well out of the water (high enough so that it's never underwater, even in the case of extreme flooding) and to pump air in and out of the underwater area.
Samuel Bembleridge - Tue, 31 May 2016 12:37:46 EST cNouZAzb No.6967 Reply
What if instead of using a water lock you just counteract pressure mechanically?


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- Tue, 03 May 2016 23:45:58 EST /SWUqKch No.6955
File: 1462333558556.jpg -(26457B / 25.84KB, 657x403) Thumbnail displayed, click image for full size. MODEL SHIT IN A GAME BRUV
I want >>>/vg/664016 to succeed so I'm shamelessly shilling it. I personally am (extremely slowly) working on a city simulator, using historical public census/weather data from various cities as input. It's a big project and I've only just begun but it feels right.

But anyhow, visualizations feel good as hell and gamedev is a hobby that works with modeling interests. I bet a whole bunch of you have played Banished or Cities: Skyline or DF or whatever else, and been like "huh" or "nah bro, what they should have done there..."

So maybe you should get into amateur gamedev. The barrier to entry is low. The tools are free. It's a good hobby.
Archie Dracklestot - Wed, 04 May 2016 01:24:31 EST CUcr8ZcI No.6956 Reply
Yep it is a good hobby, and also a ton of work. Good luck!

Electrochemistry Support

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- Tue, 26 Apr 2016 23:40:21 EST 9ofAWPV8 No.6952
File: 1461728421005.jpg -(441377B / 431.03KB, 1920x1157) Thumbnail displayed, click image for full size. Electrochemistry Support
Well, i've got my chemical engineering degree recently and i'm in my first freelance job. Need to design a desalination process; as a pretreatment, i require an electrolysis cell to electrolyse seawater producing Cl2, H2 and NaOH, the later is the main agent of the pretreatment.
As such, i need to understand and design an electrolytic cell for the purpose, but my electrochemistry in uni was shitty to non existing, and besides RedOx understanding, i'm naked at it. Can you lend me material to read an learn? I'm facing death with "Electrochemical methods and fundamentals (Bard & Faulkner)"cause it has like 800 pages and is pretty thick.
Also, i've found some ppt's lessons, but they lack the teacher. Anything works, but i'm focusing in sizeing and evaluation by now.
Alice Follydag - Sat, 30 Apr 2016 08:55:55 EST Nf9XqI8L No.6953 Reply
You shouldn't have a job, let alone a degree, if you don't understand RedOx, nor even have the energy to read a 800 page book to help you.
Isabella Sushstone - Sun, 01 May 2016 19:03:03 EST 9ofAWPV8 No.6954 Reply
what a nice reading comprehension...

S-senpai.. my piston rods are moving on their own

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- Sat, 13 Feb 2016 23:26:48 EST eLQ43SxB No.6909
File: 1455424008489.jpg -(63461B / 61.97KB, 1280x720) Thumbnail displayed, click image for full size. S-senpai.. my piston rods are moving on their own

You know, the Engie board was originally my idea, but it's taken me this long to find suitable porn.
Graham Grimway - Wed, 20 Apr 2016 20:29:46 EST UWdc7qZ1 No.6948 Reply
well that was fucking weird

so if you want decent engineering videos I like AvE and clickspring for sure.


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- Tue, 22 Mar 2016 16:28:28 EST ej7dKnE7 No.6935
File: 1458678508824.jpg -(22342B / 21.82KB, 656x488) Thumbnail displayed, click image for full size. fuck
So after being out of high school for 7 years now, I want to go back to school for aerospace engineering. No engineering schools worth a single fuck anywhere within driving distance. LOL, fuck me, right??
Claus Cunt - Thu, 24 Mar 2016 16:09:38 EST 842pDf5G No.6939 Reply
Yo Taylor? Move to New England fag.

RGB Strip Wiring

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- Wed, 09 Mar 2016 19:47:22 EST 0sTD210V No.6926
File: 1457570842902.png -(11461B / 11.19KB, 954x282) Thumbnail displayed, click image for full size. RGB Strip Wiring
Does anyone know how these RGB strips are supposed to be wired/controlled?
I was able to wire a PC fan connection (with power and ground) to the +12v on the LED strip, and the ground to either an R, G, B, or combination.
So what I don't understand is why the ground connection is what determines the color, and also how am I going to vary the colors to get all possible combinations other than the current 8 combinations I can make.

If I use the fan controller's pot to control the GROUND wire, will that even work? If so, will I be able to wire each individual R G B to a separate knob on the fan controller?
Polly Dashwure - Wed, 09 Mar 2016 20:28:41 EST 0sTD210V No.6927 Reply
This is confusing. The fan controller has it's own molex power & ground. It's not as easy as just wiring the fan's positive outputs from the controller to each R G B, because I'd end up with 4 12v inputs going the LEDs.
But it's confusing because I have
+12V; R; G; B. So that means at least one of those R G B's has to be a ground connection. Are they ALL a ground connection? Will a potentiometer even work when wired on a ground wire?

Curved actuator

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- Thu, 28 Jan 2016 18:36:41 EST djMkKCnU No.6886
File: 1454024201573.png -(21566B / 21.06KB, 1152x648) Thumbnail displayed, click image for full size. Curved actuator
Has anyone ever produced a hydraulic actuator like this?
5 posts and 1 images omitted. Click View Thread to read.
Henry Bunbury - Sun, 28 Feb 2016 20:18:39 EST +u3PHuSh No.6921 Reply

OP 1 flycut one side down, mill locating tabs down, M0 then flip, mill out and profile with corner round first side, leave locating/mounting tabs on both ends all 5 sides of them having been machined at this point
OP 2 use a plate fixture that holds all the profiled tangents, mounts and located off of the fully machined ends. finish profiling
OP 3 supported in soft jaw, put one end to stop, and have the other end towards spindle where gets corner rounded
OP 4 same as last op, you can do both ends in the same soft jaw, at the same time, on the opposing ends, assuming the operator is instructed to hold +/-.001 for tooling between OP1&2. On the first part and last part of the batch there's no support on the far end of the jaw, so it will sit cockeyed and need a support block used.
Henry Bunbury - Sun, 28 Feb 2016 22:07:50 EST +u3PHuSh No.6922 Reply

It should also be noted that if you're doing the spindle time in house and want to save money on not buying corner rounds, you could just hemstich the curvature with a ball nose. At the expense of added spindle hours to the part, especially if you don't have look ahead features or a high RPM spindle. Plus if the resolution and accuracy of the machine isn't there it might look like shit and need a lot of polishing.
Other wise you can always make corner rounds out of tool steel yourself. There's a number of tutorials on making profiling tools. Especially for cutting prototyping costs.
Alice Gublingdock - Mon, 29 Feb 2016 17:50:31 EST fEVjpFqe No.6923 Reply
I'm glad the dildo drive is finnally being invented..

Georgia Guide Stones?

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- Wed, 20 Jan 2016 18:26:23 EST cjMtRwMf No.6872
File: 1453332383556.gif -(127671B / 124.68KB, 574x383) Thumbnail displayed, click image for full size. Georgia Guide Stones?
Does anyone have any info on how these were built?

Or what they are specifically made out of to survive the coming apocalypse?

I have these sources, but does anyone have any more fringe sources on these monuments?

>or possibly proof of who or what put them there for what reason?


Possible proof of satanic sacrifices going down on the top of the stones
1 posts omitted. Click View Thread to read.
Phoebe Sollyfield - Thu, 21 Jan 2016 07:52:29 EST Wog5XsYj No.6874 Reply
>Or what they are specifically made out of to survive the coming apocalypse?

Albert Gubberchen - Fri, 26 Feb 2016 18:53:42 EST I4/79hKb No.6918 Reply
but what if they were made with SPACE granite!

Found this and want to repair, any advice?

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- Fri, 26 Feb 2016 18:40:10 EST G0anMYhU No.6916
File: 1456530010295.jpg -(799200B / 780.47KB, 2560x1536) Thumbnail displayed, click image for full size. Found this and want to repair, any advice?
My friend and I found this electric piano thrown out on the curb by a church so we too it. It works but one of the speakers makes a loud buzzing noise. I want to try and repair it myself , last resort we take it to a repair shop. I'd like to try and learn how to do this though. Any pointers?
Charles Gungerfuck - Fri, 26 Feb 2016 18:46:28 EST jIX0poLH No.6917 Reply
Open 'er up and check the wires leading to the buzzing speaker for rust/corrosion. Look carefully at the solder connecting the wires too, check for any cracks. You may have to de-solder the old wires off and affix a new one. It's pretty easy to do!
Alice Gublingdock - Mon, 29 Feb 2016 17:52:24 EST fEVjpFqe No.6924 Reply
The sound quality will never work, give up, buy a new one stimulate the Anerican economy, if not you're clearly a commie #betterdeadthanred

Microwave side ways

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- Wed, 10 Feb 2016 04:20:02 EST LBP6HmD6 No.6900
File: 1455096002961.jpg -(115153B / 112.45KB, 640x960) Thumbnail displayed, click image for full size. Microwave side ways
Ok I need a reply my friend is about to use a microwave wave but on a 90* angle ( on its side) and he wants to know if there is any reason not to microwave his beer like this
3 posts and 2 images omitted. Click View Thread to read.
Frank the taco - Wed, 10 Feb 2016 04:59:23 EST LBP6HmD6 No.6904 Reply
1455098363630.png -(940560B / 918.52KB, 640x960) Thumbnail displayed, click image for full size.
Raj is drunk and disappointed in you /tesla/ very disapoint, very drunk
Frank the taco - Wed, 10 Feb 2016 05:05:10 EST LBP6HmD6 No.6905 Reply
1455098710181.png -(916602B / 895.12KB, 960x640) Thumbnail displayed, click image for full size.
Raj needs to go and get a new microwave :(
press !QUHukXEvkY - Wed, 10 Feb 2016 12:27:02 EST y0IwyzRZ No.6906 Reply
technically nothing speaks against using a microwave on its side afaik

but then again, the fact that youre shitposting like a retard and that you actually plan on microwaving a beer would lead me to the assumption that you ought to consult youre special needs care taker first.

goddamn you are one stupid overdue abortion

1018 material treatment?

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- Sat, 30 Jan 2016 02:15:40 EST +u3PHuSh No.6889
File: 1454138140689.png -(37362B / 36.49KB, 961x677) Thumbnail displayed, click image for full size. 1018 material treatment?
Working a small, essentially toy sized turret lathe. Decided for the way/gibs/geometry critical mechanical parts to be 1018 since it's fairly inexpensive, easy to get a hold of, and from my general understanding stable enough for precision mechanical parts. Looking through some general info on the alloy seems to indicate that no extra heat treating is needed, nor cryo, normalizing, pickling, etc. And once it's been rough cut, allowed to destress for a short period, then brought into final dimensions(milled, ground, lapped, scrapped) it shouldn't profoundly move on its own when at a room temperature.
Is this fairly true, or will this thing bow, and warp every which way by several tenths a few months latter?
M - Sat, 30 Jan 2016 14:32:22 EST cH5JngF1 No.6890 Reply
I guess you`ll be fine. Let the thing cool back to ambient temperature between getting it into shape and taking off the final 1-0.5 mm. This should prevent any inaccuracies.
Whitey Grandshit - Thu, 04 Feb 2016 02:27:07 EST Dey/bbM1 No.6893 Reply
Low carbon non-alloyed steel doesn't benefit greatly from heat treatment, its still going to have bcc crystal structure at room temp so unless it's under significant stress it shouldn't warp.

ITT: We Propose Inventions/Systems

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- Tue, 07 Apr 2015 15:58:41 EST wftcIKEI No.6677
File: 1428436721552.jpg -(24943B / 24.36KB, 368x229) Thumbnail displayed, click image for full size. ITT: We Propose Inventions/Systems
I guess the inventions could exist but maybe it's implementation should be different or an improvement of an already existing invention or something brand new.
>A freeway vehicle with a giant turbine to filter smog + magnetic collector to clean the shoulders.
>Superhighways (elevated w/ minimal exits)
>Better programmed traffic light systems
>Solar Panels over parking lots
16 posts and 1 images omitted. Click View Thread to read.
A Wizard - Thu, 07 Jan 2016 00:33:39 EST 2kzmujuR No.6857 Reply
1452144819493.gif -(25809B / 25.20KB, 544x408) Thumbnail displayed, click image for full size.
how about an un ass ifier do like get the ass off everything you know what I mean?
Ebenezer Duckdock - Wed, 27 Jan 2016 01:31:07 EST VQbOqqQq No.6883 Reply
What is it with you posting all over the place? And being a dick A Wizard posts are just hella shitty, nb

3D printing

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- Tue, 07 Aug 2012 03:38:31 EST gwioP68g No.4626
File: 1344325111792.jpg -(210781B / 205.84KB, 800x800) Thumbnail displayed, click image for full size. 3D printing
List or explain the problems with these ideas for improving the efficiency/speed of 3d printers

1) a manufacturing line of 3d printers, something similar to ford, where each printer was setup to make one specific part for a project, and then you assemble those parts by hand, that could scale pretty well whilst still allowing you to change what you print with ease

2)increasing the number of print heads and decrease their size so they don't get in the way of each other on a single 3d printer.

3)with traditional methods of manufacture, mass produce small plastic pieces to a high precision that fix together tightly and be assembled in to any shape by a machine similar to a 3d printer, instead of melting plastic, it inserts one block on top of another (too small for human hands to do)
41 posts and 14 images omitted. Click View Thread to read.
Lillian Croddlestone - Fri, 22 Jan 2016 05:46:36 EST Xr0J2piW No.6877 Reply
1453459596516.jpg -(8823B / 8.62KB, 259x195) Thumbnail displayed, click image for full size.
this is fucking nice

www [dot] shapeways [dot] com/materials/aluminum

I`m somehow not allowed to post a fucking link
Lillian Croddlestone - Fri, 22 Jan 2016 05:47:47 EST Xr0J2piW No.6878 Reply

What I was meaning to say though, we can now DMLS/SLM for quite a low price
Edward Smallham - Sat, 23 Jan 2016 00:36:32 EST cdPUlSpz No.6879 Reply
--strength problems-cannot come near the strength of forges or even billet
--can't make composites(afaik) like fibre reinforced nylon

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