bartneck Posted May 22, 2016 Great Ball Contraptions are fascinating and I designed two GBC modules that use LEGO slides for getting the balls up and down. The first uses a ball pump to push the balls up through the tower. The balls then roll down a double helix: The second modules uses the double helix for an Archimedes Screw. This is a very effective method of lifting balls up. Share this post Link to post Share on other sites
dr_spock Posted May 22, 2016 Cool. It would be great if the slides came in a transclear version. Share this post Link to post Share on other sites
Philo Posted May 22, 2016 It would be great if the slides came in a transclear version. Yes! Is it necessary to close the top of tube? Share this post Link to post Share on other sites
RohanBeckett Posted May 22, 2016 sigh... another part to add to my wanted list ;) well done.. both designs are very well executed, and seem to work well! Share this post Link to post Share on other sites
Doug72 Posted May 22, 2016 Looks and works good. What part number are the helix tube sections ? Share this post Link to post Share on other sites
soccerkid6 Posted May 22, 2016 Wonderful way to put those slide elements to good use It is unfortunate that you can't actually see the balls climbing the screw, but that doesn't take away from it being a very clever and effective design Share this post Link to post Share on other sites
bartneck Posted May 22, 2016 The tube sections are part nr 11267. Share this post Link to post Share on other sites
