Chief Delphi - under 2 sec Mini bot

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- General Forum (http://www.chiefdelphi.com/forums/forumdisplay.php?f=16)

- - under 2 sec Mini bot (http://www.chiefdelphi.com/forums/showthread.php?t=90545)

thefro526

31-01-2011 08:09

Re: under 2 sec Mini bot

Quote:

Originally Posted by squirrel (Post 1012210)

I expect that if you're using any tetrix parts besides the bare motors, wheels, and battery, you're not building the fastest minibot you could :)

I wouldn't be surprised to see some of the faster mini-bots using tetrix metal as well. The few pieces I played with were extremely light.

Tetraman

31-01-2011 08:50

Re: under 2 sec Mini bot

The real race will be deployment.

Can you deploy faster than 1 second?

TEE	31-01-2011 09:34

Re: under 2 sec Mini bot

Quote:

Originally Posted by Chris27 (Post 1011920)

Yes.

Proof by example

http://www.chiefdelphi.com/forums/sh...ad.php?t=90114

Q.E.D.

(unless you are including the start of deployment as well?)

I'm pretty sure that minibot didn't have a battery pack onboard :rolleyes:

Tobot

31-01-2011 09:47

Re: under 2 sec Mini bot

Our team has protoyped two minibots with good results, and I still think we are far behind. A reliable, fast, rugged deployment method is challenging. Do not underestimate it.

I second all the comments regarding using the required masses to improve wheel traction.

Our team will probably not be disguising our minibot in any way. Right now, it just kind of "feels wrong."

If you have enough man-hours to devote to it, a sub-2-second climb is doable. We do not have enough man-hours.

MrForbes

31-01-2011 10:43

Re: under 2 sec Mini bot

I hear one FRC team in Phoenix is getting a whole other ex-FRC team (now FTC team) to develop their minibot. Yeah, it can take a lot of engineering effort to make an outstanding performer.

Tytus Gerrish

31-01-2011 10:48

Re: under 2 sec Mini bot

Quote:

Originally Posted by itsalka (Post 1011919)

How are you getting your minibots to do that?
So far we've gotten the bot up in 10 seconds, but we're running into difficulties for making it go faster with our tetrix wheel (not the best traction), and messing around with the gear ratios, and just finding where to distribute weight.
What kinds of designs are you guys using?

ditch the gearheads.

JesseK

31-01-2011 10:48

Re: under 2 sec Mini bot

Under 2 seconds, huh? I'll bet that if we see some under 2-second MINIBOTs, we'll also see some batteries that are overcharged and leaking by the end of competitions.

Tytus Gerrish

31-01-2011 13:08

Re: under 2 sec Mini bot

Quote:

Originally Posted by JesseK (Post 1012380)

Under 2 seconds, huh? I'll bet that if we see some under 2-second MINIBOTs, we'll also see some batteries that are overcharged and leaking by the end of competitions.

universal smart charger $35

it's an essential piece of equipment for Airsoft. it saves you from destroying your batteries. i suggest you grab one of you are worried about overcharging

Racer26

31-01-2011 16:16

Re: under 2 sec Mini bot

Jesse isn't worried about overcharging per se.

They're saying that to achieve sub-two second climbs, those minibots will be depending on an overcharged battery (to squeeze that extra little bit of performance from) to do so, and thus by the end of competitions, they'll be damaged.

Brandon Holley

31-01-2011 16:34

Re: under 2 sec Mini bot

Quote:

Originally Posted by Tytus Gerrish (Post 1012464)

universal smart charger $35

it's an essential piece of equipment for Airsoft. it saves you from destroying your batteries. i suggest you grab one of you are worried about overcharging

I believe the chargers we got for the FTC batteries are almost identical to this (without the branding/different color)

-Brando

santosh

31-01-2011 16:41

Re: under 2 sec Mini bot

we just got 1.6, i will post the youtube soon once it is uploaded.

Chris27

31-01-2011 16:55

Re: under 2 sec Mini bot

Quote:

Originally Posted by TEE (Post 1012332)

I'm pretty sure that minibot didn't have a battery pack onboard :rolleyes:

You really want to count on that? ;)

sdcantrell56

31-01-2011 20:35

Re: under 2 sec Mini bot

Possible without a shred of doubt...

LH Machinist

31-01-2011 21:42

Re: under 2 sec Mini bot

Quote:

Originally Posted by ICanCountTo19 (Post 1012176)

Does anyone have specs on the TETRIX motor with the gearbox removed?

I just ran it without the gearbox and no load: @12v 7700 RPM, @14v 9100RPM. I'm not sure about the available torque.

speedbuggy76

31-01-2011 22:25

Re: under 2 sec Mini bot

Do we have a video Hailey?

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