# Bill of Materials Congrats, you're officially an expert on bot parts! Have a sticker. Oh wait, I used the last one as a decal on my flying spiderbot. Have a cookie instead! Oops, I used the cookies as spiderbot fuel. Umm.. this greasy old gear I found in an alley..? Yes. Congratulations. 😅

Now it's time to create a list of the parts you want to get! This is called a "bill of materials." Maybe wash your hands first, though. To recap, you'll need: * [ ] **x1 Pilot**

* [ ] **x1 Controller**

* [ ] **x1 Hub**

* [ ] **x2-4 Motors**

* [ ] **Wheels**

*(optional, recommended)* * [ ] **Scrap**

If you want some ideas 🤔, here are some example bills of materials. You can't go wrong with any of these. The intermediate and expert sets can both create championship caliber bots. 🏅 And the beginner set can be upgraded to intermediate when you're ready. Keep in mind you'll still need a [pilot](/craft/avatar.md) and a [controller](/craft/controller.md)!

🟢 Beginner ($100 - $160) — Age 7+

* [ ] **Hub & Motors** * [ ] x1 [Move Hub](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fproduct%2Fmove-hub-88006\&u1=guide)

* [ ] **Wheels** * [ ] x2 [Tire 107x44](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fpick-and-build%2Fpick-a-brick%3FdesignNumber%3D23798\&u1=guide)

* [ ] x2 [Rim 56x34](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fpick-and-build%2Fpick-a-brick%3FdesignNumber%3D51150\&u1=guide)

* [ ] x2 [Cross Axle 8M](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fpick-and-build%2Fpick-a-brick%3FdesignNumber%3D3707\&u1=guide)

* [ ] x4 [1/2 Bush](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fpick-and-build%2Fpick-a-brick%3FdesignNumber%3D42136\&u1=guide)

* [ ] **Scrap** * [ ] x1 [Creative Color Fun](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fproduct%2Fcreative-color-fun-11032\&u1=guide)\*

The Move Hub has two built in motors. Just attach two wheels and you're up and running! A beginner bot competes by crashing into other bots like a demolition derby. When you're ready to add motorized tools, you can easily upgrade to [intermediate](#intermediate-usd140-usd350-age-10)! *\*If you already own lots of LEGO® bricks, you can skip the Creative Color Fun.*

🟡 Intermediate ($140 - $340) — Age 10+

* [ ] **Hub & Motors** * [ ] x1 [Move Hub](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fproduct%2Fmove-hub-88006\&u1=guide)

* [ ] **Extra Motors** * [ ] x1 [Technic™ Large Motor](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fproduct%2Ftechnic-large-motor-88013\&u1=guide)

or [Large Angular Motor](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fproduct%2Flarge-angular-motor-88017\&u1=guide)

* [ ] x2 [Rim 56x34](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fpick-and-build%2Fpick-a-brick%3FdesignNumber%3D51150\&u1=guide)

* [ ] x1 [SPIKE™ Prime Expansion](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Feducation.lego.com%2Fen-us%2Fproducts%2Flego-education-spike-prime-expansion-set%2F45681%2F\&u1=guide)\*\*

The Move Hub has two built in motors. With your extra large motor

and the Large Angular Motor

included in the SPIKE™ Prime Expansion, an intermediate bot competes using powerful motorized tools! *\*If you already own lots of LEGO® bricks, you can skip the Creative Color Fun.* *\*\*If you already own lots of Technic™, you can skip the SPIKE™ Prime Expansion. But you may want to replace it with a second large motor.*

🔴 Expert ($180 - $390) — Age 12+

* [ ] **Hub, Motors, Wheels, and Scrap** * [ ] x1 [Audi RS Q e-tron](https://click.linksynergy.com/deeplink?id=ijmwixbQ9tg\&mid=13923\&murl=https%3A%2F%2Fwww.lego.com%2Fen-us%2Fproduct%2Faudi-rs-q-e-tron-42160\&u1=guide)

* [ ] **Scrap** * [ ] x1 [Creative Color Fun](https://www.lego.com/en-us/product/creative-color-fun-11032)\*

The Audio RS Q e-tron comes with 3 Technic™ Large Motors

and a Technic™ Hub

. Those parts alone are worth the full cost of the set, so the rest of its parts are basically free scrap. Unlike the Move Hub

, the Technic™ Hub

has no built in motors. This is less beginner-friendly since you need to design your own drive system. But it means you get total freedom over how your bot looks and moves. *\*If you already own lots of LEGO® bricks, you can skip the Creative Color Fun.* *\*\*If you already own lots of Technic™, you can skip the SPIKE™ Prime Expansion.*

Once you've got your parts, you're ready for the next big step in your Bot Battles journey! You know what they say - to break the rules, you've gotta learn 'em first! And there's no one better to teach you than our Bot Battles judge, Ethan Hill! 🧑‍⚖️ They're probably getting ready for the next Bot Battle at the stadium right about now. If you hurry, you can find him before it starts. Look for a guy in a striped shirt who looks like he's having WAY too much fun yelling "Foul!" --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://play.robobattles.com/craft/bill-of-materials.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.