Hey everyone, after much debating, i decided to get off my lazy ■■■■ and make a new prototype, because the other one well…was crap Yesterday i cut the bottom and sides out (with a table saw rather than a hand saw this time :unamused:) , its a lot smaller than it was originally …

:open_mouth: Wow, thats a speedy lil fast bugger!! I wasn’t expecting it to be that fast and strong. If you wanna get more traction, keep the entire track down on the ground by putting a weight on the front. Have you tried running the rover with the text books on top of the rove…

ok now I’ve got the immediate satisfaction jones going and want to hook an r/c radio up to mine. must… fight… temptation!!! :smiley:

lol, did you calculate the speed yet? I did for mine just now for my science fair project and I got this : average meters per minute, 7.7m in 5.5s. I calculated the average speed per minute below: Convert seconds to minutes. 5.50s / 60.00s = 0.09min Vav = Δd = Vav = 7.7m ----…

Yours does 1.426m/s. Thats pretty darn fast! You can use it as an example moving object in high school physics problems :stuck_out_tongue:

well mine has a calculated theoretical max of about a meter a second, but I doubt the motors have enough torque to do that. :unamused:

Seems correct to me. You could have just done delta-d/delta-t = 7.7m/5.5s = 1.4m/s There was some error because of the rounding converting to minutes. Most of the time, speed is referred to as m/s or distance/second. Lynxmotion has this wonderful little tool: lynxmotion.com/im…

well I had to convert seconds to minutes to calculate M per min, not m per sec. So 85.56m per minute should be correct.

but m/min is hardly ever used :S But alright. If you want m/min then its 85m/min 7.7m/( 5.5s/60s ) = 85m/min You never round until the end. Then you round to the number of significant digits you need.

I know that it is rarely used, but I for driving long distances, I needed the average speed per minute instead of per second. I drive ussually for like 2m straight with my bot, (especially when Im chasing people) so it works out for me :laughing:

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italian_guy299 February 26, 2007, 10:14pm 43

I think it is correct. I timed how fast it took to move 7.7m (thats the length of my hallway) which was 5.5s. Than I did the math (average speed formula) and got that asnwer. Is it correct? I need to know becuase Its for a regional science fair. It seems correct because I am using this formula in science class this week.