ZMR 250 14mm Spacer with Vents

thingiverse

This was a fantastic model to begin with, so I thinned out the front bumper to prevent interference with screws, enlarged the gaps for wires to pass through and provide some extra space, and added some angled vents to draw air in around the ESCs and PDB. Following a conversation with an engineer I work with, I also modified the angle of the vents on the back half of the spacer. The vents are angled towards the front or rear props to capture some prop wash and direct the air over the esc's. This should particularly help while hovering and not in fast forward flight. The file for that design is titled "opposite vents." Again, I've uploaded the SketchUp file for ease of remixing. This design is specifically for 3mm arms but I've included the SketchUp file I used to make it easier for others to create their own remixes. Be sure to share them! I have also included the original XT60 plate that bolts in to hold the connector.