Hi, it's 9 45 p.m on Tuesday night and I'm in. Melbourne Decide to come to the Melbourne Hacker Space. Let's check it out. It's the new one you've seen my Uh video last time it's moved out of uh Andy's Garage and Ta-da Here it is, it is.

Oh, and there's Andy. Well, straight up welcome to the new Melbourne Hacker Space location. So thank you very much. Four or five times larger than the previous garage, so it'll be.

We'll still be busy, but not quite as squeezy. Excellent. and about 110 square meters thereabouts. Yeah, so it was.

It was a garage you can see from the lifting voice it probably used to be like a car mechanic. Ah, right. So that's handy for lifting engines out of cars. And we've got a little bit of room out the back for a bit of a quiet programming meeting area.

so it's a wonderful space. Got it? Yeah, takes on a tour. What have we got? Look just in the doorway here. We've got an ultrasound machine as you do.

Why not? I Guess we can use it for checking out what's inside here. 3D Printing plastic to see how well formed is or cavities or yep, inside bits in the middle. Of course, it's not going to work very well through air gaps, but we'll see how that works. Name tags? Yes, quite a problem is.

um I have so many people coming through it's hard for everyone to know who everyone is. So yeah, so we put name tags on I should and pictures holes for trip hazards. So we try to be a little bit practical. Roughly speaking: on the left, there's a lot of Machinery so yeah, delays, 3D printers, a laser cutter, and all those type of things.

and on The Wider sort of workbenches for people working with different activities be they, uh, woodworking, metal working, electronics, and so on. So sure. hey Dave Jonathan oxide Everyone knows John from Freetronics. Well, maybe two or three people.

Ah, two or three. Come on. All of my audience though, yeah, you've been on the amp. How you are famous is one of your goals in I Believe is working for uh Andy's companies.

uh, Lifx Life Expo it'll be very fortunate to um, pick up Mark he's a obviously one of the best Engineers you could possibly, uh, have a booking in a team. So fantastic. And how's that project going? oh going well I Believe the guys are in China We're working at the factory to get a pre-production bulb done. Yeah, so I've heard it's good.

Good news, excellent All right. Looking forward to it. So yeah, he's over there and you're left holding the bag. Yeah, he'll be back in Australia in a couple of days.

Excellent good on you Joe And what have we got here? Oh, we've got a PCB nice little CNC mill for Pcbs. What's the resolution on that? Um, pretty fine. The finest resolution that we've been able to achieve is about 0.2 mils, 0.2 millimeters. Yeah, okay, isn't too bad, that's that's all right.

That's about eight thousand. I Think yeah, that's about eight thousand with some space. So not too bad at all. And that's built from scratch by the looks of it completely.

it's using that, right? Space Project Okay, yeah, it's still a working project. progress. and what's this sucker here? That's uh, the controls? Oh that. That's that's the control for it.

What's it? What's it using? Uh, an 80 Mega 644p right? There's various number of under controllers. Good work, all right. What else have we got? We've got a lathe basically close the circle. yeah, if you're doing things with robotics so you need to be able to lay lathe metal and things.

So and this is the um, the hack CNC which you guys which um, a lot of the guys here at the Hacker Space put together for the Uh Linux conference. Yes, this is used on Monday for the Arduino minicom. Yeah, so the idea was to be able to show people how with um Milling of MDF and some 3D printer Parts you can see here under an Arduino and stepper motor control you can create a kit very simply. So the goal was to be able to build this in under two hours and to uh, then put the software.

So John can tell you more about this because John was the hey I think you've pretty much covered most of them right? But um, and you've just got a Sharpie in there at the moment so it's just uh yeah engraving? Yeah yeah, you can use it for anything you like. tattooing for grave? Um, about 34 people attended the mini conference. Yeah, I made this and a few more people. so very nice.

We're very pleased and Freetronics will be selling the controller I Believe that's what it is. Yep, right. So it's excellent. Yeah, great little boy.

So it's got um, two step motor controllers and a Servo controller. The display a has a Nintendo touch screen for input. Oh okay, right. it has an SD card as well.

Arduino Leonardo Excellent project. I Like it. Great work guys. We have a whole bunch of uh nerds on this table doing looks like they're taking apart their mobile phones as you do as you do.

hey guys, what's uh, you're actually replacing the screen? Oh who did that mate? Excellent. Well done. thank you. Yep.

so you saw it. Just balance all mine. We've got some raspberry pies and we're very fortunate after. Alex Alex Who is the head software developer, leading software developer of the Raspberry Pi folks.

He's all the way from England from the Old Dart So so you work on that it? Yeah, it's an English thing isn't it? Yeah, basically everybody is based in Cambridge almost about six trustees In which right? Yeah, and how's the project going? How many? So it's got shipped almost a million units now. Yep, we've just announced the Um. the model A has just become available for sale in Europe as well. What's the difference between that? So that version has only one USB ports rather than two right? No ethernet and it has 256 or other spiders.

I've got it and exchange for is 25.. for people that do working on products, products, projects, embedding is um, it's got some substantive power, lower power usage. Got it? Excellent. And how many software people working on that? Excellent.

What do you think of all the uh, clones and stuff like that of of uh of the pie? Um, it's a good thing, right? Yeah, absolutely. I mean the aim of the Rapping Pie Foundation is to improve computer computer education. If somebody else comes along and they produce a product which is, they can do it for the right price and is is better in some way, that's fine. I Think that you know if we do have a massive Community builds around the Raspberry Pi right? it's very, very hard to replicate.

Plus a lot of the boards which have come out they uh, well, we have a very powerful GPU compared to a lot of the other boards that's coming out. Also, the arm chip we have versus the Cortex A8 the yep floating Point performance is actually pretty pretty decent, but um, yeah, it's all welcome. Is there any more powerful ones in the works? Or it's not the sort of thing we talk about. Oh, check out the grin, folks.

check out the green. I Mean everybody, out of the question is, if you know this is going to be the moment when something isn't announced, but look, we, we're focusing closely on improving. You know, building out a platform we have right now, right? so we can get an awful lot out of tweaking the software on it. So we've been employing, we've been doing have a whole bunch of contract work going on on.

um, doing arm optimizations for libraries like X-Man renderings and stuff, so hopefully people be able to squeeze out more and more power out of the board. I Mean if you compare the original software release, what's out there now, you'll see quite a substantial difference in performance and about a continuously move forward in time. Got it? Designing for manufacture at low cost? Yeah, if that's tough getting it onto, Uh, sorry. yeah, it's a six layer.

PCB In the end, you've got all the optimizations to getting it manufactured as low cost as possible. There is lots of this really detailed work there. Um, but yeah, certainly it comes in One reason it's possible. it's as you say, it's a very small number of components, so it's your broadcaster to see.

you've got the USB model. B Otherwise, it's basically all connectors. Yeah, there's a lot of effort goes into design for manufacturing stuff like that. Terrific.

So you're what are you doing here? Frank Why are you all the way from Melbourne into Melbourne Uh, Well, I've been in Canberra last week for the LCA 2012, so now I'm spending this week traveling around a little bit. Take advantage of being in Australia visiting places like this. so I'm in Melbourne Is this your first time in Australia My first time in Australia Yeah, Excellent, Yeah. So I'm heading to Sydney tomorrow and then back home on Saturday Fantastic! Enjoy your stay! Thank you! All right every hacker space.

there's a couple 3D printers. And yes, we have a MakerBot original cupcake that's been highly modified. There's a heated bed. There's also a custom extruder.

so uh, by John Marshall Okay, and the electronics have been ripped off the side and replaced them around four. Yep, and there's uh. there's a Grand Sport And there's a completely rebuilt Z-axis so it's a not your normal club, right? It prints really well. It prints really well.

Yeah, So yeah, yes, it's got the same Ram Sport and the same extruder as the Yeah right? So oh okay, so there's some commonality there that that makes it that makes you. It makes it useful. Yeah, these printers take a raw beating. They're used by a lot of newcomers, right? while they're here.

Especially the um. the extruder had a a 3D printed gearbox, right? Um, I can show you one here. Oh yeah, there it is. Our planetary gears.

Yep, um, but this this? uh 3D print has a 0.4 mil uh nozzle on it and it takes quite a bit of force to push the plastic through that. so we've got to be we're damaging the gears all the time, right? That's been replaced with a metal metal gearbox. Yep, yeah, purely because of the hammering effects. Terrific.

And unfortunately, they're being used to do more Much more than Uh Print Uh, 3D printers these days? Yeah, exactly. And what have we got on this bench? we've got. It Looks like a little robot. What does it do? Tell us all about it.

Um, well to the raspberry and Rover to the Raspberry Pi powered robots. Yep, um. got a microcontroller which controls an LCD screen, a nice, uh, little ultrasonic sensor yep, and there's a um, nice, uh, um, motor driver border underneath. yeah, and a couple of battery packs of DC to DC convert.

Okay, it's only a two-wheeled uh job and it just uh. and the back ones are just the uh. chairs. Um, it's actually from mattress.

I Managed right? Yeah, Yeah. nice work, terrific, and it's working well. Um, we're still tweaking it. the power just fell out all right.

Yeah, but it's uh, all right. Yeah, it generally works until I Come here. Then every time it comes here, it seems to break. the White Coat Syndrome works every time.

Yes, okay. and what's down on a breadboard? Yeah, it's a um 3.2 inches doing some Mandelbrokes? Yep, Yep. so actually, um, renders it all oh okay. yep, that's a leaf.

Labs Maple board. Yeah, it's a um a St micro um Cortexa M3 microcontroller right? and I'm eventually going to make that into a pot. Excellent. Terrific, good projects and that looks fast.

Laughs Beautiful. Tell us how how fast does it go? So it goes. um 25k's an hour? but yep. um if you look at the scale of this, it'll probably be 1200 500.

You're right. Okay in scale factor: nice I Like it. it'll work. What else is a whole bunch of uh Rebecca's from Sydney she's all the way from Sydney We've got some dinosaurs and robots and dinosaurs in Sydney which I still have not visited yet.

Visit: I'm just working on characterizing this little uh LED Matrix Ah nice. Got a bunch of them so yep. I'd like to figure out how to drive them properly. Is there what is there circuitry on the back of that? Is it some resistance? Oh right.

Oh okay, right. it's just a So it's a matrix or is it no. Is it um. oh just um.

they're from LED spotlights right? But the drivers kept exploding. No nice, yes, good work. And are you the only girl here? No, it looks like I am at the moment. Yes, we need to work on the generation.

Yes, Yes, Well, I think getting one for overseas might be a bit tricky because they're glass, but they're not. They're not too expensive, so that's cool. We know we've got friends who've got like a 40 Watts so we might borrow that. Yeah, right, that's an 81.

Oh, great stuff. This is more the electronics area I guess Excellent. Another remote control. Excellent Fpga stuff.

Love it. Fpgas or Plds. Fpga's Fpga's which ones. It's the Cyclone Two Cyclone two component cabinets and the obligatory arcade machine.

Nice work. And check it out folks! Yes, that is a Cray Supercomputer, Tell us about. Dandy Oh, that's a Craigson. P22 So right in the early 80s, that would have been one of the fastest machines in the world, but these days your average iPad's probably a bit faster and now it's just sitting in a corner in a hacker space in the garage.

In Melbourne that's a great piece of furniture. Exactly. You can sit on it. Yeah, there you go.

Brilliant. Um, is there any goodness in there if we lift up the uh, the power supplies used to be under here, right? And that's that's that's a that's a 30 amp 5 volt power supply. 30 volt 5 amp. Thank you.

These are the copper bus bars. Oh, the bus bar as well. So it's about an inch square. Yeah, and so these are set between each of the columns, right? So um, I can't remember how many amps They Carried Now, it was an awful lot like.

um, you'd welded with this and so it's a small fortunate copper right there. So so they're solid. They are cheap that's actually soft here. Try picking that up.

Oh yeah, that's so bloody hell, folks. that is solid. Yeah, and so all right. this is one fifth of the machine.

Oh, there we go. So this is. this is the um, uh PCB from a Cray Supercomputer folks. So this is the program counter and you can see it's uh, uh, the top board.

Yeah, it's a second board sandwiched underneath that piece of copper. and same again. So this is a double board and that's the. There are the pins.

Oh wow. Yep. and uh. and here are the the connectors.

These are connected to five volts of ground on those box bars That I showed you so right. That machine probably consumed around about 200 kilowatts and 200 kilowatts. Try holding a sport. Holy crap that weighs a ton.

Yeah, we've had about 70 boards. Wow. And there was four columns in this machine. A ton of machines that had about 20 20, 24 columns.

So a lot of a lot of copper. Yeah, a lot of aluminum. So wow, that's a great that is excellent. I like it.

What? Uh, they're just not. uh. their. Customs no.

the 16 goat Eco So oh easy. Yep, okay, all right. um. so the original chrome is only made out of probably three chips.

Yep, um, a couple of different type of logic trips and I think it was a 16. Uh okay, that was the The Strand ships. That was it. That was it.

They're just lots of them well engineered into a into that Verdi into that uh what color into that the column based system. So because they they they had to do that back then because they, um because that's how you interconnected everything for the fastest speed. So so these, um yeah. okay so these.

So in the back was a a wire. yeah, which says yeah. about nine I think it was about nine. it was all wire wrap.

wasn't it? Yeah yeah. I think it's not even wire wrap. they're basically connectors. Yeah, these pins fit into and then and then individually wired point to point.

So it was a High Reps And so what happened was the uh, the heat was carried from the chips along. Oh and the to the aluminum. right in the aluminum there's a a full bars. yeah and so at the bottom there's a liquid Freon got the top of this gas going off to the water to be um to cooled and compressed back kind of French just like a big refrigerator.

basically. uh, in fact the Machines are made in Chippewa Falls in Wisconsin I Believe a lot of the uh, the metal work came from. Now there's like dairy farms basically right? Plumbing So yeah, it's a great machine. Lots of lots of stories.

Uh, brilliant folks. that's actually a that's a circuit board from a crate. three. A cray three.

So brilliant. And so this is a cray one. Is it? XMP So it's XMP So it's right. the Craig one was built in 1976.

This machine's from about 1982. right? and uh, the K3 was from about oh, the mid 90s 1994 thereabouts. but there's only for one one shift. Yep, right? Yeah, so it's a bit of the streets I Love it over here.

we've got a horizon. Hey Lachlan Good mate, you're on the blog. Tell us about this door access system folks. They're a 3D project in in action.

So we've got a number of members who have worked on a John project to, um, allow access to the space space or near field. uh, 13 megahertz. The idea is we're using a Raspberry Pi an NFC Reader and one in swipe the reader. Nothing happens.

White Coat Syndrome Folks and so being good. Um, good belts and braces Engineers were put in. they, uh, perfectly night vision. Well, we'll try it.

We'll give it a go. Our emergency reset system. Oh yeah, it works. Emergency reset system.

A reed switch buried in there. got it. And we have to wait 30 seconds and talk more about it just in case it crashes. Because if it crashes, you can't You can't get in, right? Yeah, that's right.

No, you can't wait until you reset it. All right? Okay, all right, you can see a few different people have worked on different parts of it, but essentially you can sort of see there's a guy who's ridden a C code on the Raspberry Pi Yep, we've got a near field reader here which is out of China but very similar to the Adafruiter. We've got a Electronics board with a fat and some driving Logic for um, interfacing to other hacker space things such as the loads of cutter and loads we might need to hook up for right? Access Control down the track Um and um. you know the power management and cabling of course, which is a nice present.

we've run that now. you can see the green light comes. Ah, there we go. We got it.

Oh my. God it opens Tada Well done. It does work, so you just have to reset it. kick it up the bum occasionally so we've still got the same exit.

you know, through the manual. Nice thing? Yes. Excellent. thank you very much.

And what's through the door? It's just a lounge room, chill out room if it gets too. Uh, loud outside? Excellent. Yeah, so we need to do a good work. Here is to, uh, some more better captioning.

Things to do? Oh yes. Oh, things to do. Huge list of things to do if you want to come down to the Melbourne hacker space and help with the to-do list. Actually, surprisingly, nearly all those things have been done.

I Just need to tick them off so that's fantastic. Thanks Andy Well thanks for dropping. Keep it up, no worries and see what progress are made. Yeah, or we're in the bigger space again.

Oh maybe because how many people are you getting here? Peak Sure, Well, we we're trying to manage numbers, but usually around 30, 35, 30 or so a meeting and we try to be as many times through the week to make use of the space. Yeah, I've much rather see a lot of meetings throughout the week where I'll have one meeting if you know 80 people people turn up there. so uh, but yeah, if we keep going this way we manage to look for some rocks. Yep, excellent.

Yeah, next time. Thanks.