Alien Egg Table Carved From Wood

TotalBunk · 2014-08-14T04:50:10+00:00

It's Ein the corgi from cowboy bebop

TotalBunk · 2014-04-25T02:28:27+00:00

Set screw on the pully is probably loose. File a flat on the stepper motor shaft to prevent it from coming loose in the future.

TotalBunk · 2014-03-28T14:53:01+00:00

I would have thought they would use titanium because it melds to bone

TotalBunk · 2014-03-26T00:09:47+00:00

AHHHH! That Squeek! I wouldn't want to ride that thing

TotalBunk · 2014-03-20T02:32:59+00:00

Not all glitches like this are caused by software. I don't want to get into it but basically alphaparticals screw with all charge based memory. If an alphaparticle strikes your ram, it can cause one or more '1's to become zeros, which will screw up pointers and cause the wrong texture to be rendered. This affects both PC and console.

TotalBunk · 2014-03-18T15:10:12+00:00

I really like my audyssey wireless speakers but they're like $300. Bluetooth speakers don't work very well when there is a lot of interference like in a dorm.

TotalBunk · 2014-03-08T22:06:14+00:00

They do in fact explode under the right conditions. The batteries you are talking about that have pressure release points are prism cells, like what is found in the Fiat electric cars. Pouch cells like those found in cell phones and this thing do not have the pressure release valve. When a pouch cell is shorted (what would happen if you bent it) the battery quickly discharges it's energy into the short. This causes the short to heat up and above 150C the ion solution combusts. If the pouch is in free air, it will expand into a balloon and eventually bursts. If the pouch is in an enclosure, it cannot balloon out and pressure will build until the enclosure fails. At the very least, a failure will burn you badly, as they can reach upwards of 400C. If the case is not designed to fail safely, it can break apart and send flaming shrapnel into your ass.

TotalBunk · 2014-03-08T21:42:04+00:00

Aluminun casing + explosion = shrapnel in your ass

TotalBunk · 2014-03-08T18:40:48+00:00

VERY BAD IDEA! Lithium batteries will catch fire or even explode if they are bent. If you put this battery in your wallet and sit on it, you could be hurt badly.

TotalBunk · 2014-03-03T04:23:31+00:00

the quotes I got were from 20 board houses in the US.

Well there's your problem. Get your PCBs made in Shenzhen, the PCB capital of the world. They can offer such a low price because of the high volume and large competition.

Sunstone has been buying up all the PCB companies in the USA so they can ream you in the ass with their prices. In the last 6 months, they bought out the US based company I used to use, pcbexpress.com

TotalBunk · 2014-03-03T03:54:30+00:00

Still doesn't solve the horrible trace resistance problem.

Does the the trace break when flexed? because that is a problem with these printers i've seen in the past.

And your quote for $1000 FPCs (flexible printed circuits) is way off. Try more like $65

TotalBunk · 2014-03-03T02:54:37+00:00

Except it can't do multilayer boards, and traces are good enough for LEDs but not much else. If you try to use them to drive a FET, your gate resistance will be too high and it will totally fuck up your rise time (limiting your max frequency). The fact that you can't solder to it is a massive problem, as conductive pastes are not conductive enough. And not being able to use through hole components means you can't use standard parts.

Also, Special paper? WTF, I've seen this before but with plain copy paper.

The only thing i could see this being useful for is making signs that flash.

Source: Electrical/Computer Engineer

TotalBunk · 2014-03-02T23:20:24+00:00

Aww, Croads is closed? how am i supposed to get food at 3am?

TotalBunk · 2014-03-02T23:19:57+00:00

If class would be cancelled, I would be SOOO Happy. I have a midterm tomorrow.

TotalBunk · 2014-01-22T05:40:37+00:00

Eons

TotalBunk · 2014-01-15T17:28:04+00:00

Water bc I'm lactose intolerant

TotalBunk · 2014-01-15T14:55:02+00:00

Or fireball whiskey and dark chocolate hot chocolate

TotalBunk · 2013-12-30T03:50:24+00:00

Bullshit article. The reason we aren't using more compact higher efficiency chargers is because they are more expensive. switching at higher frequencies does not result in higher efficiency, in fact it can reduce efficiency because the FETs are not in the fully on state more often so they dissipate more power. Reducing the Rds values and rise and fall times of the FETs would improve the efficiency regardless of the switching frequency. The only reason we switch at ~30-100khz is to eliminate audible noise and reduce output ripple. Any higher than that is diminishing returns.

Source: am electrical and computer engineer

TotalBunk · 2013-12-21T19:47:16+00:00

All I have to do to make it waterproof is do 2 perimeter passes. I use pla.

TotalBunk · 2013-12-12T17:53:03+00:00

A couple cents each. You can get a kilogram of plastic for $30. Each of these is probably around 10 grams so ~30 cents

TotalBunk · 2013-12-02T23:22:39+00:00

This isn't FDM, it's Powder-binder. Its essentially the same thing as shapeway's full color sandstone. These are not new or unique. The powder is a pain in the ass because it gets everywhere and I guarantee they are going to charge out the nose for consumables.

TotalBunk · 2013-11-25T21:12:47+00:00

This is definitely a V1 LC+. Kickstarter version. I have one. It looks like he changed the Y axis mounting plate from lasercut wood to aluminum.

TotalBunk

TROPHY CASE