coursera-assistant-3d-printing-applications
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docs
/02_module-1-what-is-3d-printing
/02_3d-printing-insights
/04_3d-printing-the-maker-movement-hackerspaces-chris-meyer.en.txt
[MUSIC] >> Chris, thanks for joining us today. >> Yeah, absolutely. Thanks for having me. >> Thanks for your help in helping | |
me launch my 3D printing adventure. I couldn't have done it without you. >> Yeah, thank you. [SOUND] So the idea of the hackerspace is | |
that you bring people together who have interests and maybe dissimilar backgrounds | |
or similar backgrounds or similar experiences or very different experiences, | |
and you bring them under one space. It's just like a gym club for | |
people that like to build stuff. And so you can come in, | |
you can use the tools, you can use the equipment, you can get | |
training, you can get instructions. Meet up with like minded people and | |
work on projects together. Now the thing a lot of people neglect | |
is that it's not all about the tools, it's all about the people. So the people that you can bring together | |
are the most important asset, and the tools are a secondary asset. Sector 67 got started about five | |
years ago, which makes us one of the earlier hackerspaces in the US, | |
and one of the first in Wisconsin. But when I graduated with a master's | |
degree in mechanical engineering, I rented a building, | |
the building that we're in now. And I hoped that it would work out. I signed a personal guarantee | |
on a one-year lease, and I hope people would show up and use it. [SOUND] When I was a kid, I used to go | |
run over to my neighbor's house, and my neighbor had a welder. He had a car lift. He had an acetylene torch. He had all the necessary tools to | |
be able to work on a car and so that was my sort of | |
primordial hackerspace, further then that is really | |
thinking in terms of a farm. So farmers are the earliest | |
hackerspace operators. Those are the folks who ran | |
to their neighbors and said, hey you've got the tool that I need or can you come down help me with fixing my | |
tractor, get my equipment working again. This has been around forever, this idea | |
of sharing tools and ideas and resources. It just hasn't been done in inner | |
city areas or downtown areas, and I think that's really the biggest | |
difference with the hackerspace and what's been done in the past. [SOUND] In the past five years we've | |
had a little over 500 members. And having folks come and | |
go is a healthy thing, so at any one time we've got about | |
100 members who are active. Our membership's all month to month, so | |
people can join for a month, they join for a year, or do whatever they like to do in | |
terms of what timing works out for them. But we've had just as many people who have | |
no formal training in anything as there are people who've got a PhD in physics and | |
maybe a Master's in engineering. And I'd say that's the underlying | |
theme with the people that are here is that everybody likes to build things. I think what it really comes down to, | |
though, is having somebody around | |
you to egg you on. I think that's what | |
a hackerspace really exists for, is to draw together people who go | |
I've never done this before and somebody else looks at them and goes, | |
yeah, I had to do that last week, here's what I did and here's what | |
worked out well and here's what didn't. And I think that's the differing | |
element between reading online and being on a forum. And being in an environment with | |
a bunch of people who are working on things together. Is that you get the true, you bump elbows with somebody who's doing | |
something totally different than you. One of the members is really | |
into taking USGS survey data and then compiling it into something that's | |
either 3D printable or routable. This company's called My Square Foot, | |
but he makes these brilliant maps and routes them into a piece of wood. This one's been milled out of | |
a piece of pine on the CNC router. But you can just as easily | |
print one of these off. We've got another member who | |
worked here who's actually making frying pans in the shape of the state. She's got all the US states | |
all made out of cast iron and they're usable frying pans so you can | |
use them as a wall decoration as well. One of the members built a penny | |
farthing which is an old-time bike with a giant front wheel. This is a laser-cut wooden hat and one of our members has a patent on | |
this tab and slot construction system. There's no glue and no screws | |
holding this together on the top and it's essential just held | |
together under it's own tension. This is bending plywood and | |
then it's been laser cut and laser engraved so | |
that's how it's been cut out of the wood. >> Very cool. | |
[NOISE] >> I think 3D printing about five years ago really picked up. There was a patent that expired and | |
allowed a lot of innovation in the area. We started off with RepRaps, | |
which were 3D-printable 3D printers and those are still around. Those spawned MakerBot | |
out of NYC Resistor, a hackerspace in New York just like | |
this one where MakerBot got its start. And then we've seen from then many many | |
many different companies entering this arena and starting to construct and | |
manufacture their own machines, and there's a number of those | |
machines in this room. And yeah, | |
I think it's a really commonplace tool. It's a very accessible, | |
very easy to understand how to use. And the best part about it is there's not | |
a lot of prior knowledge that you need. Because it's additively | |
building the parts. The 3D printer you're just hitting print. The platform's starting off | |
empty as a blank slate and then building up your part | |
layer by layer by layer. Behind us on the back wall there, there is a whole bunch of 3D printers | |
that are used to print off these stamps. So these are a company | |
called Snowshoe Stamp, these are emulating the points of | |
contact of your fingers on the screen. And so | |
when you push this up against your screen, your phone can register where | |
these contact points were, and it's an authentic means of validating | |
that you've been to a location. If you wanted to go to a coffee shop and | |
say, yep, I've been to the counter, I bought a coffee, you can stamp your | |
phone on this and it'll authenticate that you were at that particular location | |
interfacing with this particular stamp. The challenge is though is that | |
every stamp needs to be unique. 3D printing right now is really one of | |
the only viable processes to make these. They're able to make hundreds and | |
hundreds and hundreds of these stamps on 3D printers. And they're not able to make many | |
thousands in short order but there still able to make every | |
single one of these be unique. For this company 3D printing was | |
crucial to them getting started. And they actually got | |
started here at Sector 67. I think you see a lot of entrepreneurs and a lot of start ups using 3D printers | |
as a manufacturing approach. And I think that's going to continue | |
to happen more and more often. As the printers keep coming down in price, | |
it becomes more feasible to have a dozen of them or two dozen of | |
them on a wall or on a shelf and be able to work those machines nearly | |
around the clock making your parts. So I think with 3D printing you're | |
going to see many different technologies come into play in the future. So right now FDM technology, where you're laying down material like | |
a hot glue gun does is really commonplace but SLA and SLS are two different other | |
manufacturing approaches that yield a lot higher detail and a lot better | |
approach to manufacturing parts. And those printers are going to | |
become more and more popular. But I think second to that, you've still got traditional | |
subtractive manufacturing technologies. There's actually a maker of CNC milling | |
machines just north of us in Waunakee called Tormach. And Tormach makes CNC mill and those mills | |
are doing subtractive manufacturing. And so when you do subtractive | |
manufacturing you're putting in a block of metal or a block of steel or | |
whatever you want to make it out of and you're removing material. These guys are building | |
desktop personal CNC machines. They're nearly the size of a 3D printer. But they're able to make | |
metal parts directly. And they're making the software and technologies much, | |
much easier to approach. And I think that's going to be | |
another place things are going to go as people are going to start to realize | |
that through software solutions, and just educational solutions, you can teach | |
people how to use a lot of these machines that were difficult previously, and | |
are becoming easier, and easier to use. I think the future is still going to | |
be a big blend of these things. Really, 3D printing has enabled anybody | |
to start manufacturing their own products on their desk. The catch is it's limited to what | |
they can consume as an end consumer. But the idea of a 3D printer though is | |
that every end consumer could own one of these machines. So now it falls into | |
the hands of designers. To be able to design parts that are | |
manufacturable on a printer to be used at home, and, I think, as the technologies | |
continue to improve, and, as we'll see, over the next five years, these | |
technologies are going to become more, and more advanced, and more, and more easy to use, which has really | |
been the key innovation to date. And we're seeing a lot of | |
start ups embrace that and build their products within the confines | |
of what the printer can make. And I think that will continue to permeate | |
larger manufacturers and larger companies. But the reality will become you can | |
make more and more customized things. I would say 3D printing has definitely | |
been a revolution over the past five years and | |
going to be going forward from there. We're going to see more and | |
more technologies evolve and more and more openness around these things. And I think that's really the revolution, | |
is this idea of being open to making things yourself, and | |
the idea of designing things yourself and figuring out how to go about doing | |
that is really the next step. [SOUND] I guess my advice for 3D printing | |
would be number one, don't just go out and buy a machine for yourself. First, look in to the community and | |
find out if someone also already has one, that you could go meet with them or | |
talk with them or interact with them and find out what their experience has been, because the whole point of a hackerspace | |
is bringing people together. The opportunity for the two of you to | |
learn together is a lot more valuable than individuals working in their | |
homes on their own projects. On hackerspaces.org they list all | |
these spaces all around the world. So you can go on there and check it out | |
and see what's out there and there might be one right around the corner from you, | |
you just haven't heard about it yet. There's a website called Hackaday. Hackaday shares different projects. It's essentially a project blog. So anyone can contribute | |
a project to that. It'll get featured on the main page and | |
people then talk about it in this huge community around that website | |
of just people making projects. If you're interested in looking | |
more into what we're up to, you can go to sector67.org. And, we've got a lot of information on | |
products that are up there, the tools and equipment that are here. And, if you're ever in Madison we | |
do tours every Friday from 1:00 to 7:00 on the hour. [MUSIC] [SOUND] |