The upside of 3D printing is that you only have to draft one 'handed' computer model which can then be flipped to make the other. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. However, as a father, I also don't want broken duplo pieces, so I wanted to make sure the track is not under too much tension. The straight track 4563 is 176mm in length vs the 127mm of the 6377, and the 4562 curves are 45 degree and at a tighter radius than the 6378 at 33. The irony of LEGO's design change to the shorter track segments on the 'new' track, is that the old geometry with the longer curves and straights would have accommodated left-hand/right-hand switches without any compromise or partial length track segments for correction.

The ratings/reviews displayed here may not be representative of every listing on this page, or of every review for these listings. There are 3 more combinations of 5 that give the correct displacement, but would add an odd number of curves and therefore cause angular misalignment.

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. Important: Your credit card will NOT be charged when you start your free trial or if you cancel during the trial period.

Only reviews that feature the label "Verified Review" have been checked to ensure that the author actually used or purchased the product. I can see a harmonic rocking derailment happening pretty quickly :-) <-- note the smiley, this is intended to be humour.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. Show your preschooler how easy it is to place the red action brick on the track to make any compatible train, such as the 10874 Steam Train or 10875 Cargo Train, stop when it reaches it. Note that instead of adding a piece we can remove its 180-degree rotation, so instead of adding 3-4 and 11-11 we can remove a 9-10 and 5-5.

Since the 1960, thousands of sets have been released covering everything from Aliens to the Wild West. Combine with 10872 Train Bridge and Tracks for even more track combinations and LEGO DUPLO train fun. Nowadays, LEGO makes a vast range of toys for all ages, as well as teaching materials for children, which are distributed in over 130 countries. If you have to add exactly 1 rail piece (straight or curved), what is the optimal place to insert one?

Note that a 0-1 curve and a 1-0 curve have the same displacement so we only list the left-hand curve. Just by looking at the track I can feel in my dad bones that the trains are going to derail or the wagons are going to detach.

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Open up endless possibilities for your toddler to make a cool track for any new or existing DUPLO train set with these LEGO DUPLO 10882 Train Tracks. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Product 1: The toy train tracks included in this set make an ideal gift for LEGO DUPLO train fans and are compatible with your child’s existing LEGO DUPLO train collection (the action bricks are not compatible with older DUPLO trains). From this date, despite variation in the design and purpose of individual pieces over the years, each remains compatible in some way with previous pieces. Measure the angle of each straight piece, and see if the sum of their sines is 0 and the sum of their cosines is 0.