Due to overwhelming interest the first Arduino Workshop sold out. We’ve scheduled a second workshop for Saturday 20th July Arduino is a micro-controller platform designed for ease of use and learning. It allows the creation of electronically controlled projects, whether it be simple blinking lights, a robot or a music generator. This workshop is aimed Read more about Arduino Workshop – Saturday 20th July[…]
As some of you may have heard already, our member and friend John Lamb died recently in a skiing accident. John had spent the winter in Chamonix and was an accomplished skier and snowboarder, sadly John’s accident was caused by bad weather and bad luck. On behalf of Edinburgh Hacklab I think it’s fair to Read more about “Laser” John Lamb[…]
On Saturday 22nd June 2013 the lab will running an Arduino workshop. Arduino is a micro-controller platform designed for ease of use and learning. It allows the creation of electronically controlled projects, whether it be simple blinking lights, a robot or a music generator. This workshop is aimed at beginners. You don’t needs any previous Read more about Arduino Workshop – Saturday 22nd June[…]
Marcel was busy over the weekend using the hacklab CNC mill to make some pretty cool embosing dice. He has written an Instructable describing the process.
Our robot arm is learning to control itself from optical feedback alone! We connected the Lagadic’s visual servoing platform (ViSP), OpenCVs robust homography estimator and University of Edinburgh’s Locally Weighted Projection Regression (LWPR) adaptive control to create a software stack for a cheap USB robot arm toy and a webcam. The hardware cost about £48, and it took us 6 weekends to connect up cutting edge open source research software. Yes! All this software is free! It’s been paid for already. I hope this article will guide people towards making use of these valuable public domain resources. We used an adaptive control scheme so at no point was robotic geometry measured, and instead the software *learnt* how to move the robot from experience alone.
To recap (here and here), our goal is to build high precision robot systems using cheap components, and now we have actually tried a control installation. The existing approach to precision machinery is to spend lots of money on precision steel components and more or less control the machine open loop (without feedback). CNCs are a good example of this where the lead screws are *really* expensive. This approach made sense when we did not have cheap methods of precision feedback, but now we have cheap cameras and cheap computation (thanks smart phones), an alternative method for obtaining precision could be to just to use dodgy mechanics and closed loop control (feedback). Visual feedback is particularly attractive because: its easy to install; it is contactless (so does not affect the motion of the thing you want to control) and it doesn’t wear. With vision you can just slap markers on a mechanical part and off you go (with the appropriate software).
After some kerfaffing we finally managed to get our favourite Mexican take away – Los Cardos – to deliver to our new home in Summerhall! Nom nom nom …
Yes, it’s that time of year when the Hacklab and tedium intersect in the Venn diagram region of the Annual General Meeting. The Open Night will therefore be slightly later than usual. Members, be here at 7pm sharp. Visitors and guests, we plan to have the doors open to you at 9pm.
Edinburgh Mini Maker Faire took place last Sunday, at Summerhall. Hacklab being on site made it easy for us to get involved. The centre piece of the lab’s projects was a marble-run with a magnet-based lift belt, based on a previous version installed in the Forest. By Saturday evening the run was starting to take Read more about Edinburgh Mini Maker Faire[…]
Following on from the previous Candle Making workshops, we are happy to announce the 3rd running of the workshop. Covering the basics of candle making participants should leave with enough knowledge to try some candle-making of their own. No previous experience is required just come along and have fun. Areas covered will include: Different types Read more about Workshop: Candle Making Basics[…]
Good news everyone! It’s just over a week until the Edinburgh Mini Maker Faire! Put Sunday the 7th of April from 10AM in your diary and come down to Summerhall for: Robots! Electronics! 3D printing! Flashing lights! Skulls! Boats! Etc! As the Mini Maker Faire will be at Summerhall (where Hacklab lives), in addition to Read more about Maker Faire is coming to town![…]