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Aopen HX08 Full Tower Casing Mods - Day 4 - 3 April 2000, Rheostats and Fanbus Unit Well, Day 4 did not turn out the way I had planned. Had no time to actually carry out the cutting of the side panel. Maybe on Day 5.... :O( But as not to disappoint those of you who checked out the progress of this page, I decided to talk a little about the Rheostat and Fanbus units. My interest in these units began when I came across Cliff's excellent site about his custom-built fan power supply unit, www.fanbus.com. Using simple devices and electronics, he creates a central location to manage the leads from the various fans in his system. There was also a rheostat setup that I like very much. It lets you control the spin of the fan by controlling the voltage supply to the fan. So you can have some peace and quiet when surfing the Web and have the ultimate cooling power when playing demanding games. To cut the story short, I emailed Chris and requested a quote for a custom setup. The price was was right but the Post Offices here won't do Money Orders to the U.S.!! The only way was to send an International Bank Draft, which would cost me almost half of the cost of the units themself!!! I decided to scrap the idea and live with the noise!! But then a friend saw Cliff's notes on the fanbus and he told me that he could help me build one myself. Now I wished I had paid attention during all those Electronics Engg. classes I attended back in 1991!!!:O) Anyway, I set out and search for the components and he would help me with the wiring and soldering. First stop, the switch. That was easy as almost all the stores in Sim Lim Tower have 'em. You just need to find one rated for 12VDC.
The next item on the list is the electronic hobby kit box for the fanbus, the spring wire clips, control knobs and the rheostats. The first 3 items was also easy to find but I had trouble sourcing for the rheostat. According to Cliff, he uses a 5Watts rheostat but the smallest wattage I could find was 30Watts!! Even then, the thing was to big for the faceplate!!! But then, a kind soul helped me out......it was the guy at the store where I bought the switch. He told me that I could find what I was looking for at a store just behind his. So off I went and I was presented with a sign saying, "HANDY ELECTRONICS". Could come pretty handy, I guess!!! :O) The guy was right!! They did have those suckers!!! Even though it wasn't the same as Cliff's specs, the guy was kind enough to explain to me the proper setup of the rheostat and he was also quick to understand when I told him what my purpose was for buying the rheostats. Now that's what I call service!!!! I ended up buying 3 pieces. But sad news for others.....he told me that these are the last 3 pieces and they won't be bringing in the low wattage models anymore. He said that it cost too much and they weren't selling very well. Weren't selling well?? Then how come these are the last 3 pieces???
Having all the items ready, I called my friend and we proceed to assemble the units. I started to cut the wires to the desired length and my friend started to solder them to the connectors. Not really professional stuff, but it will do........
I decided to mount the switch and the rheostats directly to the faceplate. The faceplate was quite soft and easy to work with. Looks like the front panel of a guitar amplifier!! COOL STUFF!!! Now all it needs is labels!!
Here's both units after being connected together. The Fanbus is attached to the Control Unit through plastic wire connectors, so it can be easily removed for setup with different controllers. Here you also see the male MOLEX connector for connection to the PSU.
Here is an updated schematic drawing of the setup.
Hoping Day 5 would turn out just fine............later dudes..... :O) Got News? Send 'em in!
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