Average Feet per Second

[MisterX]

I was just thinking what everybody is think about this competition as far as feet per second? Are you planning to zoom (100 f/s), lumber ( 1 f/s), or average ( f/s) Anything you provide for me as afar as stats will be deeply appreciated

[Brendan7]

I think it states in the rules that you can only go up to 10 f/s.....not sure on this one though.

[Stephanie]

Originally Posted by Brendan7

I think it states in the rules that you can only go up to 10 f/s.....not sure on this one though.

as far as i know, there are no speed restrictions on *driving*. the 10fps is in reference to the vertical velocity limit of anything being launched from the bot to hang from the bar.

[MisterX]

sorry If I made it sound wrong, but what I am looking for is what your team is doing as afar as f/s for this years competition (like the average) not what the rules say is the max

p.s. The whole hundred feet a second thing was just a bad joke I guess we dont actually plan on doing that

[Jeff Waegelin]

Originally Posted by MisterX

I was just thinking what everybody is think about this competition as far as feet per second? Are you planning to zoom (100 f/s), lumber ( 1 f/s), or average ( f/s) Anything you provide for me as afar as stats will be deeply appreciated

Well... the most that you'll typically see on a really fast robot is somewhere around 15 ft/s. Our robots the last 2 years could go 13 ft/s in high gear, and 2 ft/s in low gear. Most robots you'll see will fit somewhere in that range, or possibly a little bit above or below.

[Tyler Olds]

Originally Posted by Jeff Waegelin

Well... the most that you'll typically see on a really fast robot is somewhere around 15 ft/s. Our robots the last 2 years could go 13 ft/s in high gear, and 2 ft/s in low gear. Most robots you'll see will fit somewhere in that range, or possibly a little bit above or below.

Your bot 2 years ago (2002) went 13 FPS?????? I seem to recall it goign about the same speed as us which was about 6 FPS

[Jeff Waegelin]

Originally Posted by Tyler Olds

Your bot 2 years ago (2002) went 13 FPS?????? I seem to recall it goign about the same speed as us which was about 6 FPS

Maybe you're thinking of the midlevel gear we ran at MMR, which was around 6 or 7 FPS. I was referring to the "overdrive" gear, which we didn't use until late in the season. It was theoretically 13 FPS. In practice it was less than that, as we found when we clocked it in the 10-11 FPS range in some testing last summer. It was quite a bit more than 6, for sure. Are you sure you have your numbers right?

[Gary Dillard]

Originally Posted by Jeff Waegelin

I was referring to the "overdrive" gear, which we didn't use until late in the season. It was theoretically 13 FPS. In practice it was less than that, as we found when we clocked it in the 10-11 FPS range in some testing last summer.

Maybe those lost 2-3 fps were spent compensating for driving your casters backwards

(I'm just teasing Jeff - nothing like a good technical debate).

[Steven Carmain]

For the Technokats this year, we tested our gearbox for the "Software Bot"(new this year) using 4 CIMs(all we could find in preseason) using a new, reduced gearbox and got about 16 fps in high and 10 fps in low.

[George1902]

You can see lots of opinions here.

[KenWittlief]

if your robot goes backwards as much as it goes forwards in a match, then its avearage pfs will be zero! :c)

BTW - does anyone know the speed you will get if you use the 12" KOP wheels and either of the two transmissions they gave us this year? (assuming you use the drill motors)

[Chris Hibner]

Originally Posted by KenWittlief

if your robot goes backwards as much as it goes forwards in a match, then its avearage pfs will be zero! :c)

BTW - does anyone know the speed you will get if you use the 12" KOP wheels and either of the two transmissions they gave us this year? (assuming you use the drill motors)

Ken,

My rough (in my head) calculations say that you will go about 18 ft/s in low gear, and about 72 ft/s in high gear. I think you would want to gear it down a bit.

-Chris

[ShadowKnight]

aye...our robot is using a 1 to 4 ratio with sprocket and chain...roughly, we should be going like 6 fps in low gear if I remeber the calcs right...

[Cory]

Originally Posted by ShadowKnight

aye...our robot is using a 1 to 4 ratio with sprocket and chain...roughly, we should be going like 6 fps in low gear if I remeber the calcs right...

We used that same ratio last year. I assume you are talking about the drill motors. If so, youre going to go something like 3-4 fps, with a lot of torque.

[edit] that is with a 7.5" wheel. You will go faster or slower accordingly, based on your wheel sizes.

Cory

[ShadowKnight]

I guess I got the calcs wrong then