The FliteTest Goblin is an awesome RC plane, but what makes it even more awesome is this 3D printed battery box. I got tired of the Velcro tearing away from the foam board, and this has eyelets for straps to hold the battery down while only adding 25g to the nose of the plane. You can compensate for the extra weight by pushing your battery closer to or further from the CG. You can mount the box with either the solid end towards the back or front depending on what battery you're using. I mounted the solid end to the front for rigidity. I'm running a 2200mah battery, so the battery sits almost perfectly aligned with the front edge of the box. The cheap roll of Velcro strapping was purchased from Harbor Freight. I've listed the print settings below, or you can use the included gcode file for Prusa based printers.
I hope this little mod helps makes your Goblin experience even better.
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eSun PLA Plus
This model has 1mm walls, so you should adjust print settings accordingly. I printed it with 4 perimeter walls, three top and bottom layers, and zero infill.
My custom settings in Simplify3D
Extrusion multiplier: 1.00
Extrusion width: 0.45
Layer Height: 0.30
Top solid layers: 3
Bottom solid layers: 3
Outline/Perimeter shells: 4
Temperature: I printed in PLA+ at 220
Cooling fan: 100% after 1st layer
External Thin Wall Type: Perimeters only
Internal Thin wall type: Allow single extrusion fill
Perimeter overlap: 25%