what happened there? how long were those running? that much steel dust is rediculous. was it assembled correctly?
Why didn’t you grease them?
Yeah… I’m adding grease to ours Monday.
I’m also wondering what kind of conditions would make them that bad.
-Vivek
I would also like to know why they weren’t greased. I think the lack of grease may not have been entirely to blame for the damage to the gears but it could have accelerated the process. Wasn’t the transmission incredibly loud without any grease in it?
We’ve already greased ours once, but I think we’ll do it again after seeing that…:ahh:
We have four Toughboxes on our robot this year. We lubed them like every other gearbox that 1646 has used, and have had zero problems with wear such as this. There is no reasonable way that this could happen this season if they are properly set up. As I was taught in high school, a properly lubed gearbox, is a happy gear box.
I think we’ll do it also, sell the powder I say :ahh::ahh::ahh::ahh:
I wonder who taught you that…
Our team ran our transmission’s with zero grease all of last year!
We used them again this year to practice lol. This situation must have some other variables:ahh:
is the lexan plate part of the kit, or did you make that?
i second that
no you just got very very lucky…
Using these gear boxes without grease is just plain stupid… Never run them without grease, they are rotating at 5000 RPM or there abouts… You NEED grease. No wonder so many teams are seeing gears grinding to nothing, when you have no grease thats what will happen…
Part of the kit. Didn’t you at least look at the kit gearboxes? 
The first thing we did was machine metal plates for the backing, because last year we shattered/melted it.:]
obviously not. using something different … 
sort of like not reading a manual and just throwing it out when you open the box 
So THAT’S why our gearboxes keep doing that… :ahh: :rolleyes:
Well to answer a few questions, the gearboxes ran for about 10 hours each on the playing surface using the rover wheels. In the rush to make the practice and chase (rabbit) robots the greasing completely slipped my mind and thus the result. Unfortunately this had happened all 4 of the gearboxes. On the final robot we did grease it but this was before we saw this problem. After seeing what happened I m going to go back and ultra lube it. Assembly wise I m quite sure they were aligned properly and there were no mistakes there.
Everything happens fast in FIRST and Shift happens. Have fun and hope to see you at nationals.