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- Events on March 11, 2014
Build Brighton 3D Printing Group
From: 7:30 pm
to 9:30 pm
Description: A meetup for 3D printing enthusiasts to get together and discuss anything 3d printing related. Share tips and tricks and solve printing problems.
This Tuesday is the third 3d printer group and we have a great speaker this week.
Steve Carpenter is a professional toy designer who uses a 3D printer as part of his design process.
Steve will walk us through the process he followed in designing and developing one of his fantastic robot toys.
- Events on March 13, 2014
From: 7:30 pm
to 11:00 pm
Description: We'll be open for the evening. Feel free to pop in and see what we're about.
- Events on March 15, 2014
Build Your Own Hand Held Games Console workshop
From: 11:00 am
to 2:00 pm
Description: In this workshop we’ll provide everything you need to make your very own hand held games console! This build-it-yourself kit is based around an 8x8 LED display matrix and comes ready to play our own minimal take on a whole pile of classic games, including Space Invaders, Breakout, Pacman, Connect4 and Memory. It even has sound!
This is a basic to medium complexity soldering workshop suitable for adults and older children (under-16s must be accompanied by a parent or guardian). The workshop includes everything you need to build your games console - even the batteries! We’ll also supply the tools and guide you through the build.
You can also program your own games for your new console using the popular and open source Arduino development environment (which can be downloaded for free). All attendees will receive a free USB programmer that can be used to reprogram your games console. You’re welcome to bring your laptop along to the workshop if you’re interested in programming your own games, and we’ll help you get set up. Or if you just want to play the games that come bundled with the console, that’s fine too!
This workshop is great for all levels, from electronics newbies right up to those who are experienced using Arduino and are interested in designing customised gadgets. Maybe you just want a geeky toy you made yourself – its all cool.
Tickets cost £45 and are available here: https://www.eventbrite.co.uk/e/build-your-own-hand-held-games-console-tickets-10639473953
We are here
Rodhus Studios (back entrance)
Category Archives: cnc
It has taken a bit of trial and error and a good, old-fashioned, low-tech method of validating our CNC setup, but we’re thrilled to see that it finally looks like it’s working.To begin with, we placed a pen (instead of a drill) in the z-axis and fiddle… Continue reading
Here’s a screenshot of our first test – and it’s all looking rather encouraging!I actually got the generate g-code (after parsing the SVG file and applying modifiers) to match the positioning of the objects in Inkscape – in the example above, you can s… Continue reading
Mach3 is a serious bit of kit. There are options and settings for everything!Which a lot of people would be really pleased with. Just like Eagle is the de-rigueur PCB layout software, because it’s so configurable. But here at Nerd Towers, we’re no… Continue reading
A while back we started looking at the feasibility of manufacturing at home. The reasons are many, but that’s a discussion for another day. So far, we’ve been looking at how to screen print double-sided pcbs before immersing in ferric chloride for etching.
Now double-sided boards mean finding a way of lining up the prints on both sides of a board. And the most obvious way to do this is to pre-drill the boards before printing. Which in turn means using a CNC machine.
We built a CNC drilling machine for under £50 last year which was pretty accurate – up to about 0.5mm which still made for some pretty useable PCBs. One idea (which we’re not dismissing – just haven’t time to implement just yet) is to add a camera to the drill head and drill a pre-printed (but not-yet-etched) board. The drill head can move into position, then we use the image from the camera to ensure the drill goes exactly into the centre of each hole by jogging the x/y axis a little until perfectly lined up. This should at least remove the 0.5mm inaccuracies we got during testing. With one side printed and the board drilled, we could then line up the board and print the second side before etching the entire thing.
But just right at this minute, we’ve not really got time to do more development – especially not when we’ve a 0.1mm accurate CNC milling machine gathering dust under a table somewhere….
It’s been a few years since this thing was fired up, and it was supplied with RoutoutCNC software (incidentally, this is now being given away with free licences since it’s no longer supported) but we couldn’t get it to work properly. Each time the x-axis moved, the z-axis travelled downwards about once every 10 steps.
Mach3, however, worked just fine (once we’d spent a few hours setting it up and replacing the 25-pin serial cable we thought was a parallel one with a proper, straight-through parallel cable). Here’s the CNC in jog mode.
The CNC machine has been made for milling. It’s a sturdy, chunky beast and uses really good quality lead screws on each axis. So it’s pretty accurate and has very good repeatability. The only thing is – it’s so sloooowww.
It’ll have to do for now. Maybe hacking our own mini drill machine in future isn’t such a bad idea after all!
They say all the best things come in little packages. I’m not convinced, by yesterday a tiny little parcel arrived, and it was indeed pretty exciting. It was a range of v-shaped cutting bits for cnc routing:They are made with a 3.2mm shank (ideal for D… Continue reading
While there’s not been much activity on the blog for the last few weeks, things have been pretty busy elsewhere. Firstly, we’re looking at the feasibility of manufacturing locally and getting more people and businesses involved; so rather than sending … Continue reading
Justin from BuildBrighton is cracking on with his milling machine and called round to Nerd Towers for some laser cutting action to get his x-axis working last night.The mounting is beautifully simple. Firstly we made a laser-cut rack-and-pinion type ge… Continue reading