Aquarium C02 Ladder

Simple aquarium CO2 ladder which will print well without supports when laying horizontal.  This remix uses 5mm OD airline tubing to deliver CO2 to the base of the ladder.  Once the bubble is on the track it will travel upward and shrink in size as it dissolves into the water column.  Try to place the ladder with it's back fairly close to the glass (This helps ensure it is placed vertically and not at an angle). Use the ledge at the bottom as an anchor in the substrate.  The print will want to lift in the direction of the anchor which will hold the ladder in place.