sawyer klegr Posted May 7, 2018 Posted May 7, 2018 This Lego great ball contraption miniloop uses a screw made of technic flex tube to lift the marbles up, then they role down the ramp and back to the start again. The ramp is made of "cheese slopes" and hinge bricks wich make it flexible. The ramp can is flexible but if you want to bend it more than about 15 degrees you have to swap one of the 1x2 slopes for a 1x1 slope. It works well for short distances but might need to be supported if it is made longer. The LDD file is here. Some of the parts for the screw are missing because they are not in LDD, the screw should look like this: More photos here. Quote
sawyer klegr Posted May 8, 2018 Author Posted May 8, 2018 9 hours ago, Ox1337 said: Nice stairs! Thank you :) Quote
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