Competition Bots for Hobbyist Budgets

Hello Everybody,

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I think a goal of many home hobbyists (besides building deadly dangerous weapons) is to create robots that could enter the competitions (have the ability to) although they won’t, as they can’t afford entrance fee/plane ticket/hotel fees. It gives us something to strive for in a world full of idealess boredom.

Anyways, it seems that for many of us enthusiasts that whenever we buy parts, we’ll need to purchase more to use them.

So I have a few questions that will hopefully help all of us teamless folk to build high quality robots with actual purposes. Competition style robots can always be used for games around the house, and can actually be useful in the fact that they are able to lift items to carry with them.

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So to the Questions (assume that you have the starter kit for all of these, also assuming that we are in remote control):

Which parts do you value the most for increasing a robots usability, and what would you make sure to stock up on? is it motors? is it more gears? more wheels? more add-on kits (rack/pinion, treads etc.)

If you had to choose the top 3 fasteners to buy the most of, which would they be? How much of each? For buying X product, how many more of fastener Y will you need?

If you had to choose the top 3 most used/useful metal pieces for building a chassis, what would they be? What pieces do you consider essential to your builds? What are some metal plates/channels/rails you rarely use? What metal provides the most usability, as it can be easily changed to your needs? Do you buy size-specific parts or buy larger and cut smaller? How much of X metal would you stock up on?

If you had to choose the top 3 most used/useful metal pieces for building an arm or other mechanism commonly used in competition, what would they be? What pieces do you consider essential to your builds? What are some metal plates/channels/rails you rarely use? What metal provides the most usability, as it can be easily cut/bent/changed to your needs? Do you buy size-specific parts or buy larger and cut smaller? How much of X metal would you stock up on?

Besides fasteners, what parts do you always want to have a lot of in stock? How much of said item should you buy?

How much of each motion item do you need for your robots? This includes motors, servos, treads, chains, omni-wheels, leg wheels, etc. Which do you use for transportation and which for mechanisms?

Do you like to use wire ties/rubber bands/velcro wrap/vex foam/latex tubing/servo extension wires in your builds? How much should you stock up on?

What axles/standoffs should you purchase? How many? What size?

Are there any other things you recommend to stock up on in order to build a competition style/size robot?

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Thank you all so VERY MUCH for your feedback. I am creating this thread so that future vex teams, and hobbyists who wish to build competition style robots will know where to start parts-wise. I know that there are a lot of questions to answer, so I will reward you with a completely unrelated picture to the topic.

However, the picture proves that the cake is indeed not a lie. It also makes the science get done. When consumed by vex users, it makes a neat gun. For the people who are still alive.
Photo 9.jpg

A lot of the simple parts you can get from places besides the Vex store. The screws and nuts are all standard items, you can get about 2-4x the number of screws for close to the same price as Vex sells them (granted you have to buy them in large quantities).

I personally like to visit Lowes or Home Depot with a few random Vex parts in hand to look for compatible productions. You can probably find the axel bar stock there in 2-3 foot sections for just a few dollars. Springs, pullies, cable, rope and may other doodads that you can use might also be found.

I don’t think anyone can know quantities of items you should get. Purchase something and if you find you need more, purchase more of them. Be sure to check eBay and Craigslist in your area, they frequently have great deals (I recently got a full vex set + 2 or 3 other little things for $125).

Heh, when radio shack decided to cancel vex supplies I got the starter kit for about $100- including the programming kit.

Well about the quantities, would someone mind just sharing the quantities/types of metal they used, motion devices, and motors they used? I’m not picky about you including axles, screws etc.

Oh, and first one to get the reference in my first thread gets a slice of Black Forest Rhubarb Cake.

I have 2 of the original starter kits, a hardware and metal kit (maybe 2?) and I believe something like 10 motors. Actually is easier to just link to the list I use to keep track of how much money I have blown on Vex on my site at http://fryfrog.com/vex but it doesn’t include a few recent purchases such as 2x vexplorer from woot and one of the RC doodads as well as a couple differentials.

And I still find myself wanting more!

I’m new here and I started with the VEX Classroom Lab Kit as it looked the best deal. I have added the claw, 3 motors, a set of spacers, and some other things. The spacers are very useful.

Definitely stock up on wire ties i know throughout our build for our robot we used in Dallas (11 days or so) we used about 600+ wire ties and took 1000 to Dallas with us we didnt use too many of them though.

600+ WIRE TIES?

Are you using them as a brush on the bot!?!? Or is that just for holding wires on it!!?!

Like, do you add wire ties, then when you need to change something cut them off and replace them afterwards? That I can understand.

P.S. I’m still waiting for someone to get my first posts joke :slight_smile:

A Portal reference.

Hobbyists can have their own competitions too. There are prepackaged games and challenges available from Vex.

Yep :slight_smile:

Problem is, they’re expensive. Even the game-in-a-box is overpriced. I could remake the game with products I already have at home.

um yea mostly cause i like neat wireing:D but someone messed it up… also they are just epic for quickly prototyping things