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Re: pic: a control box
If the heat sink is a completely passive device (ie. it is a big lump of aluminum that is nailed to your compressor) then it is OK. However, if it is an active device with forced cooling (ie. it is a big lump of aluminum that is nailed to your compressor, and it has an electric fan that forces air over the surface of the lump to speed the removal of excess heat), then you may be in trouble. The fans are electrical devices, and are subject to all the restrictions of such devices under the parts use flowchart.
Under the definitions used by FIRST, a fan is an electronic component (ie. it is designed to conduct electricity). Since it did not come in the kit, you have to ask the question "is the part a motor, solenoid, pump, or other actuator?" the answer is "yes" (the fan does contain a motor). According to the flowchart, the fan may not be used. -dave |
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Liquid Nails! :D -dave |
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All I was pointing out was that ruling "ID: 436 Section: 5.3.2 Status" (I read all the questons and answers one night) If you can use the fans from the kit all is well, that it. They did enclude two big ones and some little ones, we are using two of the little ones to cool our drill motors. So if you get challanged on it just make sure you have the supplied fans at the ready. That is all. BTW there would be no issue of a heat sink on your compressor, cooled by a fan supplied in the kit. Good luck, and it's still a very professional job with the layout and wiring.
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Is that Harry Potter in the background?
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Sorry i couldn't post back quicker I was at the Great Lakes Regional. My name is rufu5 and I am a Sophmore in HighSchool and the Electrical team leader for team 447. We used SP50 battery connectors (just like the ones for the battery, since they can handle 50amps) to quick-disconnect all of our motors, and then we used 25pin d-ring connectors for all of our 20awg and up stuff like gyro sensors, hall-effect sensors, ect. This box can be completly dissconected and isolated from the robot for very easy troubleshooting (which i had to do at Great Lakes with help from team 45 the TechnoKats THANK YOU!!), so that is very handy. I also put in neon and LED fans for cooling but the judges made us turn off our neon because the said "they overpowered the team color lights."
If you have any questions about the box just keep posting, i will try to be online more often lol. |
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Wow, that's a beautiful board. I like what you've done with the Anderson connectors for the motors. Our electrical guy does maddeningly beautiful wiring like this, too. While beautiful, it's a huge pain in the butt to modify: the identical wires make it very hard to see what goes where. Has your team encountered this problem?
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Also, we labeled all of the wires (very tiresome process) so we could easily disconnect any pwm or motor cable for testing and then quickly reconnect them before the match lol. |
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That is a very nice electronics board. We are doing some thing like but it is 4 boards connected togeher w/ Andersons.
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