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Vase Mode Throwing Dart

somwhere between a lawn dart and a throwing knife, 
its is designed to fit a nail with a head 8mm wide and a shaft 3.75mm 
the nail head does not need to be cut off etc it should push right in from the back. 

The shape has been specificaly designed to work with vase mode, particularly around the tip it forms a more complicated shape, including an internal perimiter to support the nail, and a ribbed outer perimeter to strethen the area under the most strain of impact. 

The nail shoulnd't come out once its in place but there is a vase mode plug provided you can glue in behind the nail if this is an issue for you. 

Print settings 
0 bottom layers 
0.6 extrution width 
0.1 layer height 
turn down feed rate - print as slow as posible 
Large brim