ThK'Nex Windmille Sentinus K’Nex Construction Challenge is a design and build problem-solving activity for primary schools using K’Nex construction kits.  Working in pairs, pupils are asked to design and build a solution to a problem and their finished models are judged by Sentinus Ambassadors.

The 2025 K’Nex Construction Challenge will be ‘straight to the final’ – there will be no heats!

  1. The competition is open to teams of two P5-P7 pupils.
  2. Registration will go live in January 2025.
  3. Each school may enter one team only to attend the Challenge final at South Lakes Leisure Centre, Craigavon on Wednesday 4th June 2025.
  4. The final will commence at 10.15am and last approximately two hours.  Prize presentation afterwards.
  5. Teams should be accompanied by an appropriate adult, who should remain on site for the duration of the final.
  6. Photographs may be taken; therefore, schools are asked to ensure appropriate permissions are in place.

If you wish to enter a team please complete the registration form below.

Registration for the 2024/25 finals will go live soon.