LEGO 10882 DUPLO Town Train Tracks Expansion Set & 10931 DUPLO Town Truck & Tracked Excavator Construction Vehicle Toy for Toddlers 2-4 Years Old Girls & Boys, Fine Motor Skills Development

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Your custom wide-radius Duplo curves would fit on the outside of the LEGO track in nearly the same way, but they're wider by about one LEGO stud.

Great to see someone finally taking a stab at creating some alternative track designs for the Duplo trains.Other multiples would have to have some number of self-intersections, with 0, 24 and -24 all requiring at least 1, and the relative curvature of the two loops determining which one you get. Preschoolers will also love to place the red action brick on the track and make any compatible DUPLO train (sold separately) stop when it reaches it. Etsy’s 100% renewable electricity commitment includes the electricity used by the data centres that host Etsy.

I understand why LEGO made the decision to only make a wye type, as it was simpler, and adequate for children's play, to only produce one mold, rather than having to make separate left-hand and right-hand switches. In fact this condition is sufficient but not necessary (consider a triangle made of 3 straight pieces with 4 curves between each). A simple way to achieve that if there are an even number, would be to arrange them in non-colinear parallel pairs. Add this LEGO DUPLO 10872 Train Bridge and Tracks set to any new or existing DUPLO train set and develop early construction skills as your toddler builds the tall bridge and arranges the toy train track pieces in any way they like. Also includes a LEGO DUPLO construction worker figure, 2 loose bricks, a spade and a suitcase to extend the role-play and story-telling fun.If you attach 2, 3 or 4 duplo wagons that can detach easily and make them go through the track, if they detach or derail, then it's too tense.