Modding My RotoBus

Discussion in 'Modding' started by UnLoadeD, 15 Apr 2002.

  1. UnLoadeD

    UnLoadeD What's a Dremel?

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    I'm copy/pasting this post from a thread I did on another board where some of the guys were helping me with this:

    OK, gonna post over here instead of in CD's thread. I've made some progress but I'm not finished yet. Some of the delays are due to lack of time, but mostly trying to work around glitches.

    Here's the basic parts and idea behind them, 3 rotoray switches for fans with voltages of 7v-9v-12v. One rotorary switch for lights 1=colored lights 2=OFF 3=UV lights.
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    Bought a floppy to 5 1/4 Bay adaptor for mounting, thought it would be easier than modding an old cdrom or tape drive housing.
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    OK, the knobs are 1/2" diameter so the plan was 9/16" holes in the aluminum blank (a bit of clearance for glow effect) 1/2" holes in the 1/4" plexi(a bit of sanding to allow knobs to fit) also led's embedded in it, 3/8" holes in the 1/8" plexi for mounting the switches. OK, here's where i ran into first glitches. I had the holes in the aluminum done at work by the toolroom guys. I tried to drill the plexi and kept cracking it, so wound up buying some plexi drill bits. That solved the cracking problem, but getting 4 holes to line up in 3 different items took a few tries. I finally got it where they would go together but every thing isnt exactly centered. Next time, I'll clamp all the pieces together and drill small pilot holes.
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    Next came wiring circuits to switches.
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    Here's where I'm at so far and have hit my next glitch. After doing some testing 12v & 9v is working good, but when I switch to 7v it kicks out my PSU. After checking and recking all my wiring, I've finally found what is causing the trouble. WHen turning the switch there is brief contact between C1(5v) and C2(ground). Needless to say this is causing a dead short and my troubles. I tried taking the 5v line to B1 and adding a jumper from B to C but still get the same thing. Thought of brining the 7v from A&B poles, but i'm gonna run into the same problem. One thing to note, if i have the switch in the 7v position and power up, the fan runs, until i try to turn it to 9v, then it shorts. I can't really see a way around this, hoping you guys can maybe come up with something. If not, looks like I'll be having OFF-9v-12v switches although I dont really like the idea of having OFF's for my fans. I'm open for ideas and if ya have any questions about my explanation plz ask.

    OK, got it all together and working, Its kinda hard to get good pics of the led's glowing, I have 2 red and 2 blue in the plexi. Now all i need to do is finish the rest of the mods on my new case so i can put it all together. Thnx again for the idea CD and the diode suggestion mashie.
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    Here's thread i copied it from:
    http://www.pheatonforums.com/phpBB2/viewtopic.php?t=464

    And here is the thread where i got the idea from, i think he mentioned the circuit on page 6:
    http://www.pheatonforums.com/phpBB2/viewtopic.php?t=137
     
  2. linear

    linear Minimodder

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    Nice looking work, UnLoadeD.

    Got any shots of the LEDs? I'm curious how you lit that plexi up.
     
  3. UnLoadeD

    UnLoadeD What's a Dremel?

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    Kinda hard to get a pic of em, i drilled in and downward at an angle, then superglued the leds in the holes, the leds are above the knobs. Heres a few pics, dunno if they will do much good tho:
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  4. god8y

    god8y What's a Dremel?

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    sweet thing m8, goin to build it too (as u know)

    btw buying roto's with a break before make contact will work without diodes :D u just got wrong roto's but i'll be doing the diode thing too because its cheaper for me
     
  5. hyperactive98

    hyperactive98 What's a Dremel?

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    instead of using rotos just use potentiometers that way u can have completely variable speed.
     
  6. pheonix

    pheonix Toot Toot!

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    maybe you could drill out the bit which is breaking?
     
  7. god8y

    god8y What's a Dremel?

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    i'm more for the rotary things, i tried pots and they keeped failing for me :/
     
  8. cpemma

    cpemma Ecky thump

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    Very nice job there, UnLoaDed. I've used a rotary switch on my cpu fan controller, but 6-way so I've got 7.5, 8.25, 9, 9.75, 10.5 and 12v positions.

    Details at Switched Diodes - The Diobus ©

    Like your lighting though, must get some perspex... :idea:
     
  9. Slink

    Slink B7

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    Thats very very nice, good work, be proud of it:D
     
  10. Tim S

    Tim S OG

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    nice work UnLoadeD

    Is this the 7V 9V 12V switched bus I take it?

    I remember seeing the pics in Cold Dog's NeXT case thread on the [P] forums :)
     
  11. Yo-DUH_87

    Yo-DUH_87 Who you calling tiny?

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    This is a silly question (realy 2 silly questions), but, oh well :)

    How high (in mm) are those knobs you have for your baybus, and where did you get them?

    Signing out...
     
  12. UnLoadeD

    UnLoadeD What's a Dremel?

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  13. Cyberdome

    Cyberdome What's a Dremel?

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    nice mod there unloaded !! real nice !! anyway , those rotary switches can be 2 way voltage or not ? like 0v and 12v ? coz i was thinking of using that .. to make a CC swtich ... possible ?
     
  14. cderalow

    cderalow bondage master!

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    4 knobs and 6 fans it looks like??? 3 using headers 3 using terminals?? whats with the 6way switches and regulators?

    diagram is tough to read..... but looks nice....
     
  15. Yo-DUH_87

    Yo-DUH_87 Who you calling tiny?

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    Thanks for the knob specs. I'm thinking about a project that might require short reho knobs (oops, said too much :D )

    Signing out...
     
  16. UnLoadeD

    UnLoadeD What's a Dremel?

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    The white sockets were taken from ccfl inverters, the plugs are put on fans, the 3 knobs on the left control those for 7v-9v-12v. The blue terminals are for connecting my lights 2 are on one pole and the third is on another, I didnt have room for 4th terminal, the switch on the right controls them, position 1=12v for the 2 position 2=OFF, position 3=12v to the single terminal. I'm gonna have colored lights on one side and UV lights on the other.
     

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