|
Re: Severe voltage drop
Note - numbers probably aren't perfect because I don't think JVN's design calculator can "do" tank treads. But I like to imagine the numbers are roughly accurate enough.
In case anyone was wondering, (with the assumptions that those pullies are 4" tall and the tread has a similar COF to Blue Nitrile), your drivetrain had a free-speed of 19.93ft/s and a "pushing" current draw per motor of 265.15 Amps. Just a smidge higher than a normal draw...Okay, a lot higher than a normal draw.
If you do as Mr. Stratis suggested and add in a 2:1 ratio somewhere, it drops your free-speed to a respectable 9.97ft/s and a pushing draw of 133.93 Amps, or half of what you were at previously. Adding a 3:1 ratio somewhere gives a free speed of 6.64ft/s and a pushing draw of 90.19 Amps. A much more "normal" pushing draw.
__________________
Team 2410 thinks KISSing is amazing! Keep It Super Safe! - "You know you've been in robotics too long when you start talking to your tools." "Well, you've been in robotics CLEARLY too long when they start talking back"
- Theory is when you know everything but nothing works. Practice is when everything works but you don't know why. On our team, theory and practice comes together - nothing works and nobody knows why.
MMR 2410 Student (2010 - 2013) | MMR 2410 Mentor (2013 - Present)
FTC Game Announcer / EmCee (2014 - Present) | FRC EmCee (2015 - Present) | FRC Referee (2016)
Academic Student (Forever)
|