Tabletop marble bowling pin

thingiverse

This small tabletop bowling game was made for my children's or friends' birthday party. The game set includes 5 to 10 pins, a standard marble (glass preferred), and no rental shoes are required. It was created using a MakerBot Replicator (2012 model) Dual, with the standard MBI Black and White ABS 1.80mm filament. The printing settings included medium quality with 2 shells and 15% infill. The ABS extrusion temperature was set to 230°C, while the HBP was set to 110°C. To improve adhesion, a layer of ABSynthe (scrap ABS plus acetone) was spread on the kapton tape. For proper dual extrusion, the white STL file was opened first, followed by the red/black STL layer. Since the black spool was on the right extruder and the white spool on the left, the colors in the MakerWare preferences were adjusted accordingly. When building an array of pins, a raft is necessary to prevent the pins from being knocked or dragged down by ooze from the secondary extruder head. The pin model was created in Rhino (OS X) using "curve through points" for contour creation and "revolve around axis" for a water-tight solid. Two white objects and one black/red band were exported as separate files.