Practice bots: OK with rules/spirit of competition?

[brian3795]

Rookie team here, still trying to sort things out. One of our mentors proposed an intriguing idea: Build a "practice bot" almost identical to our primary bot to give us something to practice with during the month of downtime between the robot ship date and competition.

We found nothing explicitly prohibiting this in the rules. Is this something that other teams routinely do? (Still waiting for our "mentor" team to be assigned...actually, we've pretty much given up on that happening!)

[nikeairmancurry]

100% perfectly legal!! Many teams do this, to play with and learn from... Plus it's great for driver practice!

[davidthefat]

One thing you have to consider: resources. Do you have to money, time, manpower to build a second robot? Its not prohibited in any way, but considering the fact that you only have 6 weeks and a limited budget, its almost impossible to have a decent robot for the competition while making a practice robot. Unless you are making the practice bot just a chassis with wheels. Especially being a rookie team. While most veteran teams have robots from previous years, most rookie teams do not have that luxury.

[sdcantrell56]

The majority of the more successful teams build practice robots. The teams I have been involved with the past 3 years have built practice robot and the help has been absolutely immense. If at all possible and it won't compromise other things then definitely build a practice bot.

[brian3795]

Originally Posted by davidthefat

One thing you have to consider: resources. Do you have to money, time, manpower to build a second robot?

Good point. We will probably have the resources for a practice bot, and we don't plan on building the second one concurrently. We'll just do our best to document what we have before we ship.

Now that we know the option is open, we can start planning for this.

[Chris Fultz]

If you have the resources, you will probably find there is a real benefit to building a "practice robot" first and then use your design and lessons learned from that first one to build a second, competition robot.

The second one goes together much faster, and the electronics team, programmers and drivers have the first one to work and learn on.

[Koko Ed]

We build a practice bot with the "intention" of having it done by week 2 (most of the time we more likely see iy by week 3 or 4) and then build the final robot afterwards improving on what was learned from building the first robot.
It all depends on the time and resources you have to build it but I would highly reccomend you do it. It is a valuble resource to have for your drives team.

[pfreivald]

We are building two -- one for competition, the other 'close enough' (because of cost issues in building two that are truly identical).

It is important to make the 'close enough' robot controlled exactly the same way as the competition robot -- and as close as possible mechanically as well.

...and while part of me envies the month between bag-n-tag and your first regional, part of me is very glad that FLR is week one!

[BJC]

Even if you cannot make another full robot due to time, materials, money, etc having just a chassis is still worthwhile. It allows for driver practice among other things. If you can practice even for 3 hours (I mean actual drills, not just driving around) you will have more experience then most teams by the end of their season. That is a HUGE advantage!

[Trying to Help]

We only have one Classmate this year and are working on a practice bot. Is there a way to run both robots, alternating? We also have only one wireless access point.

Thanks for any pointers!

[MagiChau]

Could you try and find someone willing to donate or sell an old laptop at the least and install the Driver Station software on it so you have another Driver Station.

For the router problem I am afraid you probably will have to try and get another one. The robot is suppose to have a certain IP address in the network, you can't have both of them with the same address in the same network.

[apalrd]

Originally Posted by ZonChau

For the router problem I am afraid you probably will have to try and get another one. The robot is suppose to have a certain IP address in the network, you can't have both of them with the same address in the same network.

By my count (Assuming they haven't broken their old ones) they should have 3. The Linksys DS radio from 2009, the Linksys gaming bridge from 2009, and the new bridge/radio from 2011.

There are two options for setup on this:

1. Run each as its own network. This would require two DS computers (including your Classmate, so you just need to find another one). You would run the practice bot using the pair of 2009 radios and the extra laptop, and the competition bot using the new 2011 radio and the Classmate. You would need two sets of driver controls as well, which might not be easy if you use the Cypress board.

2. Run one as a different team. Pick a team you like, or another number you won't forget. Image the practice bot as so, and setup the second laptop and old radios as well. In LabVIEW, you could create a new build specification for practice, which would just change the robot IP.

Or you could just not use them both at once. If you need to run another robot against the practice bot (maybe a boxbot or a kitbot or something for driver anti-defensive training?) you could just use an IFI control system. You wouldn't even need to program it (gotta love default code).

[Trying to Help]

Thanks for the suggestions everyone! I'll pass along the suggestions to our software team.

I'm personally thrilled that this is our third year and we've finally gotten to the point that we'll be able to test and do driver training.

[FRC4ME]

Perfectly fine but I would like to share a bit of adbice:

1. Don't starve yourselves of resources to get the second bot done. Make sure you can build one good bot first.

2. The practice bot is for practice. After the main bot ships, you must keep the practice bot as close to the real one as possible, because that's what you'll have to work with at the competition.

I've witnessed what happens when you try to use a "practice bot" along with the withholding allowance to make the six week build season a nine week build season. It doesn't work at all.

[techedguy]

We've been using an older control system on the kitbot for programming practice, sensors, ect. We are working on making the control system swappable between chassis and using the KOP chassis for practice and a "real" chassis for competition. Of course once the 'bot ships we'll have the KOP chassis to practice with. (which just thinking it through means I need to order more sensors...)