Gridfinity Marble Run - Tunnel Blocks

Here's another expansion set of Tunnel Support Blocks I created for the Gridfinity Marble Run created by C7 Modeling. Expand your marble run builds with these support blocks that all for the marble to travel through them allowing more compact and taller builds without worrying about building yourself in with supports blocks. The best part about them is that they double up as just additional support blocks to raise your marble run height even if you don't tie them into your build every time! Note: Supports are set up in the print profile to be easy to break away, but I have printed them without supports enabled too - you may get a slight bit of stringing/weeping at the opening of the holes if you choose to print without, but for me it was just a cosmetic outcome and the blocks still functioned as intended. ALSO check out my Vortex and Drop Block Pieces ATTENTION: You will need to print the core set/some of the expansion sets by C7 Modeling (linked below) in order to utilize thes