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Unread 03-07-2012, 22:27
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Aidan S. Aidan S. is offline
2013 World Champions!
FRC #0610 (The Coyotes)
Team Role: Alumni
 
Join Date: Jan 2010
Rookie Year: 2009
Location: Toronto, Ontario
Posts: 71
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Re: Spikes not working - URGENT

This is more of a reminder of the values of a well organized and carefully built electrical system (I apologize for going a bit off topic, but these tips will make any future troubleshooting easier and faster):

Troubleshooting an electrical systems can cause a lot of headaches and take up valuable time during build season and at competition. The best way to troubleshoot a good electrical system is to start before the first wire is crimped. If you start with an organized and careful approach, you can save a lot of time in the long run. Two of the easiest ways any team can do this is label every wire and component, and test and check wires multiple times before adding them to the system.

Effective labeling is a must for any electrical system. This means to label both the components and the wires, and stick to a system for all labels. For example, my team labeled all jaguars with a number, all victors with a "v" followed by a number, all spikes with a "s" followed by a number etc. This helped the electrical team to easily identify what each wire was connected to and allowed the programming team to figure out what controlled things such as motors by looking at the motor rather than tracing the wire from the motor back to the speed controller. A quick tip for labeling is to label each end of the wire and label each wire individually, instead of using the same label for things such as power and ground wires on the same component.

Proper wire construction is the cornerstone of a solid electrical system. PWM wires can be very temperamental to build, as an improper crimp can be easy to make and hard to detect, but these tips can apply for all wires. First off, it is very easy for anyone to make a mistake when crimping a PWM pin. Crimp too much of the housing and not enough wire and the wire won't conduct properly, and crimp too much wire and not enough housing and the pin can easily snap off. To remedy this, after a visual inspection, use a multimeter to test a crimp both before and after placing the pin in the housing to make sure that the pin is conductive. If its not at either time, then it's back to square one, better to be safe than sorry.

Taking these extra steps will take extra time and patience, but it is well worth it, considering how it will better prepare you for the season ahead.
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2013 Galileo Division & World Champions with 1241 and 1477 #TheTheoryOfTexanCoyotes
2012 - ????: Mentor, Team 610 2009 - 2012: Student, Team 610
2013 - ????: Strategy Adviser, Team 1310

Thanks to all the great alliance partners through the years: 67, 188 x4, 191 x2, 488, 469, 578, 842, 862, 1212, 1241, 1305, 1310 x2, 1325, 1334, 1511, 1535, 1477, 1559 x2, 2122, 2168, 3161, 3360, 3396, 3476, 3609, 3756, 4124