3D printing

MartyS (Gromit) · July 24, 2014, 08:37:33 PM

Quote from: Darth Geek on July 24, 2014, 07:20:54 PM
You should see if you can find a 3D model of the MST3K Spaghetti Ball

I've looked, none I could find.

Should be possible, take the video of the ball spinning and save enough frames to get pictures for every angle, I know programs exist that can take a series of pictures around an object and build a 3D model. I just don't think any of them are freeware but I haven't looked real hard.

Darth Geek · July 24, 2014, 08:42:44 PM

Somebody with a really accurate 3D scanner could scan one of those stress balls they sold with the XX set.

MartyS (Gromit) · August 03, 2014, 09:57:53 AM

I'm about half way through printing all the parts for a light saber.

So far they are looking amazing, just like the pictures on the page below. I'm printing them in red just to test out the parts, hope I don't have to reprint them in black and white so the base color doesn't show through the paint I'm going to use.

I'm not going to do the aging, just normal black, sliver, and brass color, but check out the paint job done on this page:

https://www.ultimaker.com/blogs/news/2014/07/02/3d-printed-lightsaber-design-philosophy

MartyS (Gromit) · August 03, 2014, 07:18:53 PM

After 2 days of printing it came out pretty nice:

From what I can tell this is a full size replica, but wow this thing was made for someone with small hands. Or they didn't think about the ergonomics when making a cool looking prop. Or a combination of both....

Edit: Good thing I haven't glued anything yet, looking at the original I see I put that ring near the end on backwards, easy to remove and flip.

MartyS (Gromit) · August 03, 2014, 10:02:08 PM

Went with the paint I had left over from the big Enterprise build, the PLA plastic takes paint really nicely, but doesn't sand as easily as styrene.

BathTub · August 03, 2014, 11:29:25 PM

Man I hadn't even considered how 3D printing would revolutionize the replica prop side of things. Thanks amazing.

goflyblind · August 04, 2014, 09:28:31 AM

that's a weird looking dildo.

MartyS (Gromit) · August 05, 2014, 03:29:52 PM

Finally found a piece of wire that works for the D-Ring, so now it's done:

Darth Geek · August 27, 2014, 05:19:09 PM

http://www.geeksaresexy.net/2014/08/27/no-big-deal-guy-3d-prints-an-actual-castle-using-concrete-pics/

MartyS (Gromit) · October 03, 2014, 05:10:30 PM

My first practical household item drawn up in FreeCAD. My wire soap holder works fine with the bar of soap is new, but when it gets thinner it slips out of the sides, now it can't:

RandyMistie · October 06, 2014, 02:33:55 PM

I watched the doc on Netflix about the 3D printers. It was more about the corporate CULT-ure and The Church of Silicon Valley than the hardware or software so this thread was very informative on that topic.

What I was most interested in, however, was the guy that designed plastic guns for the printer. The U.S. government shut him down. Now, of course, the idea of undetectable guns is pretty scary. But, what did the kids who put out this tech think was going to happen? People are no damn good!

Oppenheimer said, "I have become Death, Destroyer of Worlds..." and he looked haggard in that film. He knew that he had opened a Pandora's box. These kids think and say, "We are going to change the world!" having no knowledge, apparently, that this is not always a good thing.

What about knives? You can make an undetectable knife with this tech... should the government shut that down, even if you wanna cut tomatoes with it? Isn't this a matter of free expression? What is the liability of the kids who made this possible?

Oh, and sex-toys, people will make a bunch of those, as goflybind intimated! LOL!

MartyS (Gromit) · October 06, 2014, 02:49:02 PM

Do you remember the name of what you watched on Netflix? I'd be interested in that.

People have been making guns out of various different stuff pretty much since the first gun was invented.
As for undetectable, for the 3D printed one you still need a nail for the firing pin and the bullets, both of those are pretty detectable, the nail would be easy to hide in something else and pass, but bullets are pretty easy to spot with X-ray or a metal detector. Technically I guess you could build something that would be free of metal and make one shot, but the bullet would have to be ceramic or something like that, not printed plastic. Mythbusters has shown many times that light materials are not fatal when used as bullets, only one I think they ever got to work was bone machined to look like a bullet, and even then they needed to fire it from a rifle point blank.

Way cheaper to buy some plastic dinnerware if you want a plastic knife than to print one.
The best sharp edge straight out of the printer would be about the same.

RandyMistie · October 06, 2014, 02:57:21 PM

Oh, it was really good, it was called "PRINT: The Legend" it followed the progress of Makerbot and Formlabs, the kids that worked so hard to bring 3D printing to the desktop.

Over the two years while they brought their printers to market, started their "Start-up", etc... these documentarians followed them.

RandyMistie · October 06, 2014, 03:12:03 PM

Quote from: MartyS (Gromit) on October 06, 2014, 02:49:02 PM
Do you remember the name of what you watched on Netflix? I'd be interested in that.

People have been making guns out of various different stuff pretty much since the first gun was invented.
As for undetectable, for the 3D printed one you still need a nail for the firing pin and the bullets, both of those are pretty detectable, the nail would be easy to hide in something else and pass, but bullets are pretty easy to spot with X-ray or a metal detector. Technically I guess you could build something that would be free of metal and make one shot, but the bullet would have to be ceramic or something like that, not printed plastic. Mythbusters has shown many times that light materials are not fatal when used as bullets, only one I think they ever got to work was bone machined to look like a bullet, and even then they needed to fire it from a rifle point blank.

Way cheaper to buy some plastic dinnerware if you want a plastic knife than to print one.
The best sharp edge straight out of the printer would be about the same.

That's true, of course. But if prison has taught us nothing, it's that you can sharpen anything into a weapon. You are right about the guns, there must be some metal, so, why did the state department shut him down? That is an interesting question... what did he use for a firing pin or bullet?

Well, thinking about it... a zip-gun can be made out of pretty much anything, and the parts would be fairly undetectable separately, especially by underpaid, bored, security checkers. Not at LAX or the two other airports that have the naked body scanners... but like, Newark airport? 20 year old technology...

I know too much... Um... I love America like bacon! No need for feds to get involved with this conversation... nothin' to see here... move along...

RandyMistie · October 06, 2014, 03:41:29 PM

Excellent light-saber hilt, BTW! That's the coolest thing I ever saw come out of a 3D printer! Excellent paint job, too. What did you use to paint it? What kind of paint? I would think acrylic wouldn't adhere to it well... Testor's oil based, perhaps? Like the plastic models I used to paint as a kid... a thousand years ago?

News:

3D printing