01-01-2004, 03:37 PM
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TinyRC Pro
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Join Date: Dec 2003
Posts: 51
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Stage 3 of my xmod
Stage 3 of my work, pure speed! My fet's are mounted on the motor heat sink. The blue can you see is the 10,000uf power Cap. Mounted on each side is 2 CR2 lithium batteries
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LithiumXmod
Mods:
4 Cell CR2's Photo Lithium Batteries
10000uf power cap
upgraded FET's
Pnracing S03 motor
All Wheel-drive
Command Lights
Suspension - Front: S Rear: H
Steering - 1.5 degree Tie Bar
Coming soon:
Ball Bearings
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01-01-2004, 04:16 PM
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Mad Scientist
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Join Date: Oct 2003
Location: Buffalo, NY
Posts: 901
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Be careful of that... You can't have the tabs of all four transistors attached to a metal heatsink without using some kind of insulator. Otherwise you'll short out the motor output, possibly taking the FETs out in the process.
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-- It is by will alone I set my mind in motion...
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01-01-2004, 04:36 PM
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xmod destroyer
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Join Date: Nov 2003
Location: Norfolk, VA
Posts: 105
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that's pretty cool it looks like a big pile of batterys and wire
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350z-SS 130 motor, bearings cf driveshaft, custom paint,
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supra- high torque 180, 6 cell bearings,
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civic- powerdash, bearings,cf driveshaft
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rsx-fried
4supras fried
2 skylines detroyed
1 civic destroyee
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01-01-2004, 04:56 PM
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TinyRC Pro
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Join Date: Dec 2003
Posts: 51
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Quote:
Originally posted by neurokinetik
Be careful of that... You can't have the tabs of all four transistors attached to a metal heatsink without using some kind of insulator. Otherwise you'll short out the motor output, possibly taking the FETs out in the process.
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superglue doesn't conduct eletricty, unless im wrong?
__________________
LithiumXmod
Mods:
4 Cell CR2's Photo Lithium Batteries
10000uf power cap
upgraded FET's
Pnracing S03 motor
All Wheel-drive
Command Lights
Suspension - Front: S Rear: H
Steering - 1.5 degree Tie Bar
Coming soon:
Ball Bearings
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01-01-2004, 05:09 PM
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Mad Scientist
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Join Date: Oct 2003
Location: Buffalo, NY
Posts: 901
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Quote:
Originally posted by LithiumXmod
superglue doesn't conduct eletricty, unless im wrong?
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So what did you do? Glue to plastic casing of the transistors to the heatsink? It's hard to see in the pic.
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-- It is by will alone I set my mind in motion...
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01-01-2004, 05:13 PM
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TinyRC Pro
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Join Date: Dec 2003
Posts: 51
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I glued the fins of the heat sink to the motor heat sink, the car runs fine. If something was wrong, my batteries would have heated up really bad and give off a smell. neurokinetik, do you happen to aim?
__________________
LithiumXmod
Mods:
4 Cell CR2's Photo Lithium Batteries
10000uf power cap
upgraded FET's
Pnracing S03 motor
All Wheel-drive
Command Lights
Suspension - Front: S Rear: H
Steering - 1.5 degree Tie Bar
Coming soon:
Ball Bearings
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01-01-2004, 05:20 PM
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Mad Scientist
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Join Date: Oct 2003
Location: Buffalo, NY
Posts: 901
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Quote:
Originally posted by LithiumXmod
I glued the fins of the heat sink to the motor heat sink, the car runs fine. If something was wrong, my batteries would have heated up really bad and give off a smell. neurokinetik, do you happen to aim?
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True, but it still seems risky to me. I would have used an ohmmeter or continuity tester to make sure that the transistors are truly isolated. The other problem is, over time, that setup is going to be exposed to vibration. Sooner or later, the transistors are going to be conducting across that heatsink. When that happens, it won't be good.
No I don't use any form of IM...
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-- It is by will alone I set my mind in motion...
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01-22-2004, 05:47 PM
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I Shall Return!
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Join Date: Feb 2003
Location: Chicago
Posts: 203
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whats dose a power cap do?? and whats the highest cap that i can put on
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01-22-2004, 08:30 PM
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TinyRC Pro
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Join Date: Dec 2003
Posts: 55
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whats the huge capictor for, and whre does it connect to etc?
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01-23-2004, 01:39 PM
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TinyRC Pro
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Join Date: Oct 2003
Posts: 40
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That's some crazy stuff! Where'd ya get ur fets and what type are they?
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