marble run transport snail 152 mm 7 twists

thingiverse

Transportation System for Marble Runs with Fischertechnik Compatible Axles, Utilizing a Twisted Spiral Design for Fun and Challenging Obstacles. Engineered specifically for the movement of marbles with a diameter of 13mm. The inner axis featured in this design has a diameter of 4.5mm. My personal 3D printing experience with my Prusa I3 indicates that it is capable of producing an axis with a diameter as small as 4mm. As a result, users will find that this system is compatible with the standard axes offered by Fischertechnik for its systems that utilize axles with a 4mm diameter. Detailed Instructions are provided below for building and preparing this system for successful printing: For best results, users should take advantage of the Brim or Raft options when initiating a print to ensure that their prints achieve stable and level bases. Based on the requirements related to acceleration, I have adjusted the default speed of my prints to 20%. Other parameters are set as follows: Layer Thickness - Z-Axis = 0.2 mm, Material Temperature (PLA) - 220 Centigrade, Travel Speed - 50 to 10 millimeters per second and Print Bed Preheating Temperature at 55 centigrade. For added support, an Adhesion Promoter is employed - a type commonly known as Hair Spray.