About this 3D model

This is a syphon priming 'jiggle' pump that utilises a standard 15mm marble. Printed in ABS with 0.2mm layerheight and 60% infill. The spring is 6 10 x 0.3mm, brass tube 6mm od 0.2mm wall both available from Amazon. Just add a length of 6mm id silicone tubing to complete the syphon. Insert the marble in the shell. fix the spring to the boss on the holder. Insert the spring and holder to retain the marble. Glue (epoxy) the tube in the top and then glue (I used ABS/acetone) the top to the shell.