Archive for the ‘Projects’ Category.

Charging leads with magnet contacts

Some of you might have noticed that i like playing with magnets, so i did again. I’ve used neodym magnets which have hole in the middle, and used a screw, which I soldered the wires to. This makes very practical charging leads which can be attached to just about everything.

This wasn’t my idea, someone on the candlepower forums posted some similar charging leads a while ago.

Maglite 3c 3-Led Modification

It’s been a long time since I wanted to mod my 3c Maglite, which to be honest wasn’t exactly bright. Costs always held me back, but then I’ve found this:

http://www.dealextreme.com/details.dx/sku.9358

sku_9358_1

This module is very bright, but too much of a thrower for my use, but i didn’t know that, and probably cannot change it (any suggestions are welcome). It has an included circuit to drive the led’s from 3.6 v- 9v. It also has 3 Output modes, strobe, low, full, they are very annoying, because they change every time you disconnect the power source. The Mag switch actually connects, disconnects for a short time, and then connects again, if you pusch it once. This makes it even worse. So i would not recommend this module, or at least not if you’re planning to use the original switch.

Now to the mod itself:

I’ve had to cut down the mag’s head, and sand out quiet a lot of alloy to get the thing in:

P1000200

I guess this is much easier on the D mag, but i always preferred the C over the D.

Connecting the module to the switch is easy, the important thing is how to disassemble the mag, but i won’t describe this here, it can be easily found on the internet. The whole thing should look more or less like this (module installed in Mag-head, switch disassembled, wires soldered to switch contacts):

P1000198

After reassembling it looked like that, the parts next to it are the leftovers from the mag minus the reflector:

P1000201

Note: Three rechargeable NiCd or NiMh cells provide the absolute minimal current to run this thing, it gets brighter when running on higher voltage. Which is something I’ll maybe do i future, using 2 18650 Li-Ion or maybe LiFePo (much saver than Li-Ion) cells.

Shutup Parhelia!

I’ll never understand what e manufacturer of PC components must be thinking if he designs something like the Matrox Parhelia. Of course this is an old model, but that doesn’t matter at the moment. The fan they’ve installed is louder than my whole PC, and my PC has quite some parts in it, so its not too silent. Anyway, since i didn’t want to buy a new graphics card for my PC (still AGP) and my old one died, I’ve had no choice but making this one, silent, by replacing the stock heat sink/fan, with an old CPU-heat sink I’ve had lying arround :

iPod 32GB Flash the hard way…

It all started with my dying 20GB iPod harddrive, which was out of a 2nd gen iPod and then put into a 4th gen. I didn’t use it very often till my DMP3 Car MP3 player died, and i bought the Becker iPod kit for my car stereo. It seems like I’ve shook the drive to death.

Now that a new harddrive based iPod, or a new harddrive wasn’t a solution, I’ve decided to buy an adapter from CF to 1.8″ ATA connector (search ebay, you’ll find some) and a 32GB CF card from PQI (PQI Hi-Speed 120).

The parts arrived soon, but I’ve had no luck with it. I’ve used the standalone iPod software updater, because I don’t use iTunes, but i always get the !Folder icon after my restore attempts. I then realized, that the default setting on my adapter was slave instead of master, but changing that didn’t help. After some research, I found an article, which explained that it won’t work with the hardware revision (820-1525-A) of my iPod. It’s possible to do it manually, but it looked like a lot of work, and since the quality of my adapter didn’t look so good, I’ve decided to go for an iPod Mini, which already has a CF interface.

The Mini arrived some days later, and i was sure that its’ all plug and play from now on, but it wasn’t. I was getting the same !Folder icon as before, no mater if I’ve used the standalone iPod updater on my PC, or iTunes on my PC or Mac. I don’t like to give up on things like that, but after using Ghost and Acronis, to create images of the original Microdrive, and putting them back to the CF card with no luck, i was sure that my CF card won’t work with any iPod, or at least not with the restore options Apple gives.

Now that was a long story, with a short end: Update your iPod with iTunes first, (to version 1.4.1, version 1.3 won’t work), replace the drive, restore using iTunes, and there you go…..

Mounting (network) components with magnets

The pictures say it all. I wanted to mount my switch inside my sideboard without drilling any holes into the sideboard. I’ve used the magnets out of a harddisk and attached them to the case of the switch using POP Rivets (which was a bad idea, because my Rivet Gun’s now magnetic and it won’t throw out the bolts anymore ;( ).

Switch mounted

Switch with attached magnets

MAG-LITE 2D to 6AA Adaptor

The idea was to use higher Voltage (6*1.2V instead of 2*1.2V), and run a 5 Cell “Magnum Star” bulb in the 2D MAG, this gives greater Output and shorter runtime of course. It’s made of Plexiglas and PCB-board

For further information about lights i recommend www.candlepowerforums.com