Buying Parts

Buying Parts

As your team progresses through the season, you might find that they are running out of parts. It is common to need parts beyond the FIRST LEGO League or Edu MINDSTORMS sets. In FIRST LEGO League, all LEGO-branded parts are permitted, with a few exceptions (e.g. Power Functions and wind-up are not allowed, Sound sensors and Infrared sensors are not allowed, etc). Be sure you read the current year’s Challenge Documents for details as what is and is not allowed may change from year-to-year.

How do I order sets, motors and sensors?

To order complete sets, sensors and motors, you can visit LEGO or LEGO Education. The LEGO Education Core and Expansion Sets combined are the FIRST LEGO League set sold at the time of team registration. The Home Edition of the EV3 can be purchased from many retailers including Amazon, Barnes and Noble, and Toys R Us. To read about the differences between the two sets, read this article.

LEGO Education

How do I know what the part is called?

To order a specific part, you will need to know the LEGO part number. Some LEGO elements have their number printed on them. For most, you will need to look up the part number on the inventory list for the set it came from. For example, the Education Edition of the EV3 Core Set is #45544. The Home Edition version of the EV3 is #31313. If you use a site such as Brickset, you can look up what elements are in the set. For example, type in “45544” in the Search bar on BrickSet. Then, pick “Parts”. It will show you the name, part number, and all the other sets the piece comes in.

Our team bought the 31313 Home Edition set, but want to buy the parts to make it a 45544 Education Edition Set

This comparison tool is also a handy way to find the part numbers in both EV3 sets quickly. Just order the parts that are not in the 31313 set.

Where can I buy specific parts from?

Once you know the name and part number, you can order that specifc part from stores on Bricklink and Brickowl by entering the element number in the search bar. If you cannot find the element number, type the name and it will pull up all closely related elements.

Tips: (Special thank you to Catherine Sarisky for several of the tips below.)

  • When you purchase from Bricklink or Brickowl sites, make sure you pick a store with good reviews and lots of purchases. If you want to receive your items faster, pick someone local. You can purchase both new and used parts. Make sure that the vendor ships to your country. Sellers care about their reviews and generally sell what they list, check components, etc, and are happy to fix any errors in the shipment.
  • When you purchase from LEGO Pick A Brick, please be aware that parts may take several weeks to arrive. This could be an issue for a team on a schedule.
  • When using eBay look for high rankings, read product descriptions, and look carefully at photos. Prices are not always lower and quality or item might not be exactly what the image shows. Sometimes listings that say “complete” are not complete. Electronics may or may not be tested.
  • Goodwill sales are as is. You might get a good deal or you may not. Nothing is tested and electronics might be broken.

LEGO Pick A Brick

Where can I buy FIRST LEGO League Challenge Mats from?

FIRST LEGO League challenge mats are not easily available. You can try marketplace sites such as eBay. You can usually find sets from a past season. Post your request on your local FIRST LEGO League Forum or Listserv. Sometimes teams are willing to sell them at the end of the season. In addition, contact your Tournament Director. Some of them do loan or sell their sets at the end of the season. A good substitute for FLL challenges is the Space Challenge by LEGO Education.

Seshan Brothers
Seshan Brothers   Founder of EV3Lessons, FLLTutorials, LEGO MCP, FLL World Festival Champion 2018.