December 20th: Hive76 Open House at NextFabStudio
Jordan Miller
Sean McBeth
--
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Jordan Miller
http://pubimage.hcuge.ch:8080/
http://www.osirix-viewer.com/
you can create STL files with OsiriX (open source, though mac-only) or look at Slicer3. That's how I did the virtual human brain extraction the brain a while back:
http://www.thingiverse.com/thing:822
Skeinforge and Mandoline can both take STL files and output SVG with 0% infill, which you could convert to .eps or .ai files for lasercutting at NextFab...
jordan
> <GangstaChessRendering.png>
Dave
cheap and you'll need a lot of it and nesting (if possible) will help
but I think there will be tons of waste material. Any reason to do it
out of lasercut-cut layers? Maybe vacuum forming would be better. Even
fiberglass or something. Or maybe just make windows into the lungs if
the primary material isn't clear enough?
On Nov 18, 6:41 pm, Sean McBeth <sean.mcb...@gmail.com> wrote:
> I have an idea for an art installation that I want to make:
> 1) out of layers of thick-ish clear acrylic (maybe like 1/2", though
> multiple layers of 1/4" will work for what I'm doing),
> 2) cut in such a way to make the appearance of a cross section of a
> person's chest,
> 3) with one lung making a functional pump,
> 4) and the other lung making a water bong,
> 5) to extract tar from tobacco smoke from a cigarette that the piece
> actually smokes,
>
> Demonstrating the dangers of cigarettes in a visceral way.
>
> And yes, I'm well aware that I smoke pipes and cigars and the occasional
> cigarette. I also am well aware of the dangers of diabetes and heart
> disease and I still drink and eat fried foods. Everything in moderation.
>
> Anyway, I have most of the design figured out, I just need to make an
> outline drawing so the sheets of acrylic can be fed through a laser cutter.
>
>
>
> On Fri, Nov 18, 2011 at 1:12 PM, Jordan Miller <jrdn...@gmail.com> wrote:
> > Hi All,
>
> > We are excited to announce a very hacking winter-time Hive76 open-house
> > hosted by NextFabStudio:
>
> > Hive76 Open House
> > December 20th, 7pm - Midnight
> > This Hack-tacular event will be at NextFabStudio and will get us free
> > access for the night to some of their most awesome tools, such as: CNC
> > plasma, CNC embroidery, e-textiles, electronics, 3D printers, shop bots...
>
> > There will be food too.
>
> > So Awesome.
>
> > Now we need to brainstorm project ideas, let's start things off in this
> > email thread. Please reply-all so the proper NextFab people (cc'ed above)
> > can tell us if this is possible and, if so, the logistics for how to make
> > it happen.
>
> > All details are here:
> >http://wiki.hive76.org/OpenHouseAtNextFabStudio
>
> > I'm proposing the first project (we can have many of them!!)...
>
> > A double-set of Hive76 chess pieces and boards. I want a double-set so we
> > can play bughouse chess (aka "siamese chess", it's really awesome: )
>
> > If we get really creative maybe some magnetics and electronics could be
> > enabled as well.
>
> > Here's complete details, and an attached inspirational rendering. =]
>
> > Let's get hacking!
>
> > jordan
>
> > To post to this group, send email to hive76-d...@googlegroups.com
> > To unsubscribe send email to
> > hive76-discuss...@googlegroups.com
> > For more awesome goto
> >http://groups.google.com/group/hive76-discussion?hl=en
>
>
>
> 1003KViewDownload
Sean McBeth
Sean McBeth
Jordan Miller
So... given the general agreement etc etc...
What do people want to do for the open house with NextFab? It's coming up REALLY soon!
Let's do some awesome.
Please add your ideas and outlines and details here:
http://wiki.hive76.org/OpenHouseAtNextFabStudio
Use this thread for more discussion if needed.
thoughts?
jordan
Sean McBeth
Sean McBeth
Dave
description):
- the laser-cut name tags Sean suggested (perhaps as labels for
members' storage bins, etc).
- laser-cut Hive76 rubber stamps (lots of the laser cutters have a
feature for automatically rastering the design with tapered sides
exactly for this purpose)
- CNC-machined Hive76 "maker's mark" punches. Basically picture
something like a chisel with our logo raised into the tip, so a quick
hammer strike and you can label soft metals (copper, aluminum,
silver...), plastics, leather, etc
I've got one totally unrelated and off-the-wall personal project that
would be awesome to work in here if nobody else suggests anything.
I've been planning to try and build what I think will be the first
real two-stage light gas gun outside of NASA and big research
universities and the like. Basically a collection of resistance bands
(surgical tubing) that you draw back and cock like a crossbow... Upon
firing, the bands accelerate a mass into a piston that compresses
hydrogen gas (air would work too, but not quite as impressively),
causing it to compress to really high temperatures and pressures very
quickly. This blows out a burst disk, firing a projectile out the
barrel ideally at supersonic or even hypersonic speeds. The goal is to
make the most powerful human-powered Airsoft or BB gun in the world,
ideally with a muzzle velocity higher than any firearm, but I'd be
thrilled with anything over about Mach 2 (some of the "real" ones do
Mach 30). I've put together a crude simulator that has enough kinks
ironed out to show that the idea has a lot of promise. The machine
shop could come in handy for making a number of the parts for the
machine, perhaps a barrel liner support, perhaps burst disks, maybe
parts of the breech, piston, or linear rail.
Perhaps more accessible to more people: our own Nerf weaponry?
-Dave
On Nov 29, 6:31 pm, Sean McBeth <sean.mcb...@gmail.com> wrote:
> (I should try paying attention to instructions some time)
>
>
>
>
>
>
>
> On Tue, Nov 29, 2011 at 6:31 PM, Sean McBeth <sean.mcb...@gmail.com> wrote:
> > AAAAAAH! SHIIIIIIIII.....
>
> > Plastic, laser-cut name badges with the Hive logo for all members!
>
> > On Tue, Nov 29, 2011 at 6:29 PM, Jordan Miller <jrdn...@gmail.com> wrote:
>
> >> Hi all...
>
> >> So... given the general agreement etc etc...
>
> >> What do people want to do for the open house with NextFab? It's coming up
> >> REALLY soon!
>
> >> Let's do some awesome.
>
> >> Please add your ideas and outlines and details here:
> >>http://wiki.hive76.org/OpenHouseAtNextFabStudio
>
> >> Use this thread for more discussion if needed.
>
> >> thoughts?
>
> >> jordan
>
> >> On Nov 18, 2011, at 6:55 PM, Sean McBeth wrote:
>
> >> > It was a combined idea for aesthetic as well as ease of construction. I
> >> wanted something that looked kind of like an ant-farm (I don't know why, it
> >> just came to mind), and with the right cuts the construction would be dead
> >> simple: line up the layers and glue them together.
>
> >> > > > @http://NextFabStudio.com/@3711 Market Street
Jordan Miller
jordan
99
Some Hackerspaces.org folks are doing a silly in-group project where
they are mashing up each other's logos. Feel free to submit something
if you're so inclined. There are rumors of making tee shirts out of
them for CCC this winter.
PJ Santoro
PJ Santoro
Jordan,
A high resolution (500DPI) monochrome image of the board works. You
can also just bring in Eagle files (If you work with eagle). We make
boards by spray painting a mask on the copper, laser engraving off the
paint in the areas we want etched, and then etching the boards with
ferric chloride. We have had limited success with two sided boards,
and using the laser to "drill" holes and cut out the board. Let me
know if you have any questions.
Best regards,
Ian Adam
NextFab Studio
3711 Market Street, Philadelphia PA 19104
215-921-3649
--
--PJ
Dave
dozen full sheets of 0.050"-thick, mostly double sided but some single
sided, 12"x18" (not sure the copper weight) copper-clad FR4, and no
use for them. I'd be down with donating a sheet or two to the cause.
The last time I used it I used them to skin the fins on my 45 lb
rocket because I had it laying around. :)
-Dave
On Nov 30, 6:58 pm, PJ Santoro <paint...@gmail.com> wrote:
> Thanks for that info! As a follow-up question, do you have stock material
> on site, or will I have to provide my own materials?
>
> On Wed, Nov 30, 2011 at 6:51 PM, Ian Adam <ian.a...@nextfabstudio.com>wrote:
>
>
>
> > Jordan,
>
> > A high resolution (500DPI) monochrome image of the board works. You
> > can also just bring in Eagle files (If you work with eagle). We make
> > boards by spray painting a mask on the copper, laser engraving off the
> > paint in the areas we want etched, and then etching the boards with
> > ferric chloride. We have had limited success with two sided boards,
> > and using the laser to "drill" holes and cut out the board. Let me
> > know if you have any questions.
>
> > Best regards,
> > Ian Adam
> > NextFab Studio
> > 3711 Market Street, Philadelphia PA 19104
> > 215-921-3649
>
> > On Wed, Nov 30, 2011 at 6:40 PM, PJ Santoro <paint...@gmail.com> wrote:
> > > Does NextFab offer circuit board milling? If so what kind of layout files
> > > would I need to bring in with me?
>
> > > On Wed, Nov 30, 2011 at 8:54 AM, Jordan Miller <jrdn...@gmail.com>
> > >> >>>>>>> @http://NextFabStudio.com/@3711Market Street
> ...
>
> read more »
pezman
electrolysis to generate the gas .. or even as a way to generate
compressed gas. The energy in a standard battery, if released all at
once, should be impressive.
Maybe we can get a.special Deer season (somewhere between "Atlatl" and
"tackle and stab" season).
> ...
>
> read more »
Dave
that of air, but hydrogen's speed of sound is like 3.8 times that of
air. But even air works -- the intense heat that is generated during
compression raises the speed of sound many times over, making it
possible to break the ambient environment's sound barrier with a
projectile (impossible with a traditional single stage compressed gas
gun). I had planned on starting with air for the test shots, and then
electrolyzing water to get hydrogen for the real impressive record
shots.
Of course traditional gas guns are a load of fun to make (and play
with) too. Great for shooting larger projectiles, I've got a huge one
that I built for blasting a small high-power rocket into the air
before it air-starts. They're pretty well covered in the hobby world
though. The two-stage light gas gun won't propel any big objects, but
it'll move small ones ridiculously fast. I just want to be able to say
I made an Airsoft gun that breaks the sound barrier. This would be the
first real DIY two-stage light gas gun. And then we can use it for all
of our high-kinetic energy experiments, like designing protective
spacecraft skin out of microbial cellulose. ;)
-Dave
> > > > >> >>>>>>>http://groups.google.com/group/hive76-discussion?hl=en...
>
> read more »
pezman
could pop a ram jet out the tube atop a sabot and then light it while
it's still supersonic, you ought to be able to get some crazy
altitude .. why carry oxidizers when you can scavenge oxygen on the
way up.
OTOH a project like that might get some M.I.B. attention ...
Or maybe we can win the punkin chunkin contest next year .. yay us.
> ...
>
> read more »
Sean McBeth
My coworker who does the punkin chunkin contest says you'd be disqualified :(
Dave
think you'd have a tough time with either one though realistically.
I have a toy ramjet simulator I put together as well, actually for a
project a lot like what you describe (cannon to ramjet to rocket, or
some subset). Ramjets are another area that the hobby community really
needs to come to understand, it's been fooling itself for a long time.
Most of the available literature is declassified from the '50s and
it's pretty sparse, often dubious. There are tons of guys that make
bench-top ramjets, but to my knowledge not one hobbyist has
demonstrated positive thrust with one. (Nobody is putting them on
rockets, which is almost the only way to go about doing it seriously.)
That was one of my big projects a couple of years ago but life got in
the way and I figured I'd tackle that later. I'd still love to, but I
don't think I'm ready yet. I couldn't get my ramjet to sustain in
simulation, so I figured I didn't have much hope of getting it to work
in real life. ;) Lots of test shots, rebuilding, flaming high-pressure
liquids and money flushing rapidly down the drain, at least unless you
know what you're doing. Plus I don't have a TIG welder...
Hm.. Does NextFab have a TIG welder? The ramjet would have to be made
out of thin (say 0.010-0.015") stainless steel sheet metal, and it
would require somebody that knows what they're doing to make nice
welds. If somebody were to help get the ramjet built, I can help
provide the rocket boost (or possibly my pneumatic cannon) to get it
up to the speed it will need to work.
-Dave
> > > > > > >> >>>>>> outline drawing so the sheets of...
>
> read more »
Dave
compression indirectly resulted in combustion or dieseling, right? I'm
reasonably sure there'd be no objections if you used air, and the
compression cycle would still blow the speed of sound through the roof
(so to speak). A 2-stage LGG big enough to shoot a pumpkin would be a
huge project anyway (way bigger than anything they're doing now), but
the real limit in the sport is the pumpkins themselves. A given
pumpkin can only slam into the air outside the barrel so fast before
it pies. It's less physics than farming at this point. ;)
-Dave
On Nov 30, 11:54 pm, Sean McBeth <sean.mcb...@gmail.com> wrote:
> My coworker who does the punkin chunkin contest says you'd be disqualified
> :(
> On Nov 30, 2011 11:20 PM, "pezman" <mikehoga...@gmail.com> wrote:> Actually, how about a light gas gun launched ram-jet instead. If you
Jack Zylkin
Jordan Miller
We need all responses by Wednesday.
Here's the wiki!!! So far, only 3 projects on the wiki. PLEASE FIX!
http://wiki.hive76.org/OpenHouseAtNextFabStudio
READ MY LIPS: IF IT'S NOT ON THE WIKI IT'S NOT GOING TO HAPPEN
We will downselect the set of proposed projects to a smaller number that are really cool AND have the best chance of getting completed within the constraints and rules of the event (see below). Apologies in advance to those projects that are only really cool.
The Rules for the Event:
1. We've only got ~5 hours so don't go too crazy with ambition.
2. To control costs, materials will be limited to wood, metal, and plastic scrap, rummage bins of electronic junk, and a SMALL AMOUNT (total value of $250) of NextFab donated "virgin" electronics, plastic, wood, metal, or vinyl, and some 3D printing materials. You can bring your own material, but NextFab may refuse to allow certain materials from being used with certain equipment for the safety of humans and tools.
3. Tools for the event: Workstations with 2D/3D design tools, software and firmware development, laser cutters, electronics bench tools, RepRap/MakerBot, laser scanner, vinyl cutter and small hand/power tools. Tools somewhat depend on how many and which NextFab staff and expert members will be present, so if we get more NextFab people excited we can do more.
4. NextFab's normal member safety rules will apply to everyone present. In particular, "Don't use anything you have not been approved by NextFab employees to use", and "No intoxication allowed."
jordan
Chris Thompson
http://wiki.hive76.org/OpenHouseAtNextFabStudio#Proposal_4_by_Eagleapex
custom snowflakes!
Chris Thompson, eagleapex.com
GPG key available
"Obscurity is a far greater threat to authors and creative artists
than piracy" -Tim O'Reilly
Jordan Miller
jordan
Chris Terrell
Chris
Dave
they are offering that we don't have regular access to. It sounds like
machine tools are off the table, so that mostly leaves:
- 3D printers. We've got these coming out our ears. Theirs are
probably nicer, but they can't do anything fundamentally different
than ours
- Vinyl cutter. Basically just a mechanized hobby knife but it can
enable us to make complex or repetitive patterns for stickers,
stencils, etc.
- Laser cutter. These are super handy and a great resource, with
functional overlap with the 3D printers and vinyl cutters. As long as
you're not cutting super thick material or doing much raster
engraving, we can crank all kinds of jobs through these in an hour,
easy.
- Laser scanner. I actually see this as possibly the most valuable
resource to us, in the sense that we don't have an alternative readily
available to us. We don't have a laser cutter but we have ways of
achieving generally the same ends, even if they are manually
intensive. But taking an almost arbitrary physical object and creating
a reasonably accurate 3D model in a matter of minutes is a really
powerful thing, especially with organic objects we'd like to pull in.
Who's got an idea?
Maybe we could 3D scan peoples' faces, exchange the computer models
and then tweak each others' models to make funny caricatures in
Blender (it's super easy to push and pull different parts of the
model). At that point people can return the models they've modified
and hang onto them or 3D print them (whether there or at Hive).
-Dave
On Dec 5, 6:38 pm, Jordan Miller <jrdn...@gmail.com> wrote:
> Please respond by putting your project proposals on the wiki and an email here, bearing in mind the rules below, straight from NextFab.
>
> We need all responses by Wednesday.
>
> Here's the wiki!!! So far, only 3 projects on the wiki. PLEASE FIX!
>
> http://wiki.hive76.org/OpenHouseAtNextFabStudio
>
> READ MY LIPS: IF IT'S NOT ON THE WIKI IT'S NOT GOING TO HAPPEN
>
> We will downselect the set of proposed projects to a smaller number that are really cool AND have the best chance of getting completed within the constraints and rules of the event (see below). Apologies in advance to those projects that are only really cool.
>
> The Rules for the Event:
> 1. We've only got ~5 hours so don't go too crazy with ambition.
> 2. To control costs, materials will be limited to wood, metal, and plastic scrap, rummage bins of electronic junk, and a SMALL AMOUNT (total value of $250) of NextFab donated "virgin" electronics, plastic, wood, metal, or vinyl, and some 3D printing materials. You can bring your own material, but NextFab may refuse to allow certain materials from being used with certain equipment for the safety of humans and tools.
> 3. Tools for the event: Workstations with 2D/3D design tools, software and firmware development, laser cutters, electronics bench tools, RepRap/MakerBot, laser scanner, vinyl cutter and small hand/power tools. Tools somewhat depend on how many and which NextFab staff and expert members will be present, so if we get more NextFab people excited we can do more.
> 4. NextFab's normal member safety rules will apply to everyone present. In particular, "Don't use anything you have not been approved by NextFab employees to use", and "No intoxication allowed."
>
> jordan
>
> On Dec 1, 2011, at 12:38 PM, Jack Zylkin wrote:
>
>
>
>
>
>
>
> > Jack Jacked
>
> > > > > > > > > >> > -Dave...
>
> read more »
pezman
disembodied Jansen Leg Santa Sleigh
Dave
the list of things to do at NextFab. Apparently in Philadelphia sling
shots and BB guns are illegal, so hoping that our multi-Mach research
gun will be fine is probably wishful thinking. Looks like I'll have to
stick to keeping it on my property in enclosed and controlled spaces.
I'll start another topic so I don't take this one too far off track.
-Dave
On Nov 30, 9:32 pm, pezman <mikehoga...@gmail.com> wrote:
> > > > >> >>>>>>>http://groups.google.com/group/hive76-discussion?hl=en...
>
> read more »
Jack Zylkin
- A circular end table that is basically a giant combination lock.
- combo lock mechanism is simple -- making a giant one should be easy and educational.
- get Toool involved?
- clear plastic pieces would let you see the mechanism working, but maybe defeat the purpose of a combo lock.
- do the combination correctly, and a drawer opens! Get the combination wrong, a vial breaks and poison gas kills us all.
- would work great as an instructables entry for the shop-bot challenge or laser challenge.
For more awesome goto http://groups.google.com/group/hive76-discussion?hl=en