View Full Version : pic: 823543:1 Reduction Versaplanatery
Owen Busler
21-01-2016, 10:03
[cdm-description=photo]42652[/cdm-description]
Nathan Streeter
21-01-2016, 10:05
Too funny!
If my quick calculations are correct, you'd have to wait 57 minutes to watch the output shaft make one revolution!
Ryan Caldwell
21-01-2016, 10:06
this will resolve any issue with back drive.
Too funny!
If my quick calculations are correct, you'd have to wait 57 minutes to watch the output shaft make one revolution!
But man, think of the torque implications that has!
PayneTrain
21-01-2016, 10:12
Just *barely* falls off the load rating chart (http://content.vexrobotics.com/vexpro/pdf/VersaPlanetary-Load-Ratings-20151221.pdf).
However you can always ship it back to Paul if you break it; you know, see what happens.
Tim Sharp
21-01-2016, 10:13
Should be fine if you ever need to pick up a truck...or a house.
Nathan Streeter
21-01-2016, 10:16
But man, think of the torque implications that has!
If only the internal gearing on the final 3 stages and the 1/2" hex output shaft could carry the torque! :rolleyes:
261,000 foot-pounds of torque could lift every single robot in FRC together... still with a 12" spool. Of course, you'd want to use like a 3" spool so it could still lift at peak power, not stall... and it'd take about 2 and a half hours... and 254's stockpile of batteries.
carpedav000
21-01-2016, 10:19
This looks like something 71 would be responsible for :D
Sperkowsky
21-01-2016, 11:06
So have you found the screws yet? Reminds me of this https://www.youtube.com/watch?v=VUbpb23yTK8
MaGiC_PiKaChU
21-01-2016, 12:02
Do you even torque?
Should be fine if you ever need to pick up a truck...or a house.
or a boulder...
Zebra_Fact_Man
21-01-2016, 12:34
Too funny!
If my quick calculations are correct, you'd have to wait 57 minutes to watch the output shaft make one revolution!
Congratulations; you almost just made yourself the world's torquiest hour hand.
marshall
21-01-2016, 12:37
Too funny!
If my quick calculations are correct, you'd have to wait 57 minutes to watch the output shaft make one revolution!
Ahh... the old long con...
marcusbernstein
21-01-2016, 12:57
Why climb up to the scaling rungs when you can move the entire field down to your robot's height?
Too funny. At least that team member is learning the idea of gear ratios. haha
You might draw enough current just turning all those gears to actually brown out your RoboRIO. At free speed.
Give me enough gearboxes and I'll move the world.
Richard Wallace
21-01-2016, 14:01
I wonder how much voltage you can apply before a sun gear shears off? Also which one will shear?
I imagine this will happen even if nothing is connected to the output shaft.
billbo911
21-01-2016, 14:06
Efficiency? We don't need no efficiency!
Efficiency? We don't need no efficiency!
Reminded me of this (http://www.chiefdelphi.com/forums/showthread.php?t=89768).
Cool, looks like it's a good start to the 10,000 year clock (http://longnow.org/clock/) construction.
A few more stages, some threaded rod and a pointer and you can mark it DONE!
mastachyra
21-01-2016, 16:31
Congratulations; you almost just made yourself the world's torquiest hour hand.
and it would be about as hard to stop as actually stopping time!
theCADguy
21-01-2016, 21:48
and it would be about as hard to stop as actually stopping time!
Unless you know of an easy way to generate 2,882,400 in-lbs of torque! (Assuming the BAG motor is stalled at an input torque of 3.5 in-lb)
Oslim1999
21-01-2016, 22:52
If my quick calculations are correct, you'd have to wait 57 minutes to watch the output shaft make one revolution!
Is that accounting for any backlash (or i guess forward-lash?) in between the gears, especially on the final gears?
gpetilli
22-01-2016, 15:11
Reminds me of the time I asked a freshman to grease the gears in the gearbox they had assembled. I came back 5 minutes later to find an absolutely perfectly even coat of grease on both sides of the 50T gears - none on the teeth. A true artist.
Too funny!
If my quick calculations are correct, you'd have to wait 57 minutes to watch the output shaft make one revolution!
Still a little too fast for art:
https://www.youtube.com/watch?v=5q-BH-tvxEg
waialua359
22-01-2016, 16:53
Maybe your student thought you folks were using it to launch real boulders.:)
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