The Hardinge lathe has arrived and is sitting in it’s holding space next to the Biohack corner.
Unloading it from the lorry was made simple by Weldtech from next door supplying and driving a forklift for us and PPB engineering brought a capable pallet trolley that effortlessly trundled it into G11.
Over the last few days there’s been loads of activity at the hackspace, today we’ve had mosfet power controllers, Bristol Braille, bike automatons, CNC spoon milling, PCB design & fab, cardboard surfboards, set design and solar phone chargers! It’s fantastic to see so many varied activities all going on in the space.
I spoke to the guys from The Converging World about their solar phone charger and persuaded them to pose for a photo.
They’re using an old farm’s 120W solar panel to charge a 12V battery (inside the drawers). Then using the classic trick of car mobile phone chargers (the circles in the top drawer) to step down the battery suitable for mobile phone charging. It’s all come together over the last 2 days and they just left the space on their way to the festival. Good luck!
Thanks to an amazing team effort from Richard S, Libby, Barney and Zak (am I missing anyone else?), the Shonkbot (our attempt at a cheap and easy to make robot) has developed into a great workshop. The team got a chance to test the robot out with children aged between 8 and 13 at DigiMakers this weekend.
Participants worked with cheap and widely available parts:
Followed some (still improving) instructions:
And used plenty of hot glue to create their Shonkbots:
At the end of the workshop, all participants had successfully created their robots. Some had added the more advanced obstacle avoidance components.
Even though the kits ended up at £15 (our original target was £5), all of them were bought to be taken home and reprogrammed!
Richard brought in a couple of dead oscilloscopes in case they could be fixed. The slightly newer one (last PAT tested in ’96) couldn’t be focused.
John quickly realised that one of the resistors was not like the others: Once replaced, the scope worked perfectly! Luckily for us, John was able to explain his abilities:
I saw that it had been replaced, yes. But I also saw that the ‘new’ part was a carbon composition resistor (they’re a slightly different shape), and therefore an old-stock part. Carbon resistors don’t work well in high-voltage circuits, and this focus circuit is certainly at hundreds if not thousands of volts. All that made me suspicious:
1. In a high-voltage circuit.
2. In the focus circuit, and that’s not working.
3. Been replaced before.
4. Been replaced with unsuitable replacement part.
And then I cheated, and measured it with the Ohm-meter. Should have been 2.2M Ohm, was open-circuit. That clinched it. We didn’t have any 2.2M Ohms, so I fitted two 1.2M Ohm in series. Didnt unsolder old part because it was under the CRT, and open anyway.
Our building hosts, BV Studios will be having their annual Open Studios event on the evening of Friday 14th June and during the day on the following Saturday and Sunday. We will be open throughout to show off the space and to demonstrate some of our members’ projects.