http://sites.google.com/site/simpledyno/
This seems like a very good way to learn more about your RC car and develop some tuning skills. Will start building one soon and update the post!
Archive for the ‘Work in progress :D’ Category
Versatile voltage source for DIY and electronics
Posted: November 17, 2010 in Work in progress :DTags: 12V, 3.3V, 5V, Power supply, Voltage source
Hy!
The idea behind this is trivial! I had a Corsair PC source gathering dust and thought of giving it a job:
It will be my new project supply. Well, this one is a very good all-rounder as it’s a 750W unit.
But most PC power sources will give you: +3.3, +5, +12 V at good amps(well above 5A). Mine will give 60A at 12v but that’s not a must, unless you want to start large motors or you need to charge a lot of batteries in the same time – 2/3 packs of NiMh at 4 or 5 amps each — the current output depends on the total power of the source.
But if you do need this large current please DO NOT use this breadboard method. A good way for large currents is to get the wires directly from the power rail and fit new plugs of your choice.
Here is a picture of the finished unit. Te green led is only to remind me to shut it off.
Hy… It’s been quite a while but being away
from all the chaos is a good way to spend the summer 🙂
well… not ALL the chaos.
Because I am crazy about music and audio stuff I finished my listening room this summer. It’s a 6x5x2.8 meter room dedicated 100% to my hi-fi passion. . . And this type of room needs a bit more than a sofa and a set of speakers – well, initially that’s all I had in it but the sound was just unbearable.
So…after a little talk to an acoustics specialist and a bunch of books and articles read I drew up some specs for what was needed:
– sound absorbers on front, side and rear wall.
– sound diffusers and dispersers.
– a few bass traps for testing.
The problem with all these is only one: price! very very very high price. So the cheapest way is to go DIY. . .
the absorbers were made from acoustic sponge and the synthetic fiber is added to liniarize the response at higher frequencies. There is a 5 cm airgap behind the lateral and 10cm gap behind the front ones.
The difference they make in sound is more than 100% 🙂 – My speakers are a diy high-end project and I know how they should sound. well, at first I thought there was something missing mid-range disconnected or similar, unbearable sound. After the treatment and some minor tweaks everything was back to normal and the sound is almost perfect.
I still have to add some absorbers on the ceiling but this only come next Wednesday so pictures then.
usefull links: http://www.auralex.com/
This is my latest summer hobby: http://edsp.vgtu.lt/
well… we are making a autonomous hovercraft. funny, I love driving and I’m designing a thing that drives itself – well… that’s the task. Good thing is that we will have an RC command over it soon and the fun begins 😀
will post picks soon.
Engineering piece by piece 
