Overview

The objective of this fin can is to attempt the first potential flight candidate fin can for Hermes III. This fin can implements the lessons learned from the first fin can. It includes steel leading edges, a different laminate stack up, and the correct fin geometry. 

This fin can is the second in the series of 3 fin cans for Hermes III (Rusty, Dusty, and Crusty.) This is the story of Dusty. 

Tube Preparation

11/13:

Need to CF kit:

1 more 0/90 20x22

4 more 0/90 20x26

4 more 0/90 20x26

Layup:

Epoxy: 1312.9 grams

Cutting Carbon Fiber on the Epilogue in Makerworks

• speed 10%
• 100% power
• 50 Hz frequency
• 600 ppi

Exporting from Solidworks:

• right click on the face you wish to export and click "Export to DXF / DWG"
• Specify the proper name and file location, and set the file type to dxf
• The Left Panel should say "DFX / DWG Output"
• Ensure "export" is set to "faces / loops / edges"
• Ensure "export options" is set to "Single File"
• Click the green check mark at the top of the panel
• The file will be exported!

Printing a DXF File:

• Open the dxf in your favorite vector graphics editor (e.g. Adobe Illustrator, inkscape, Corel draw)
• In Illustrator
  • Set your document to the size of your piece
  • Place your piece in the top right corner of the laser cutter
  • In illustrator, select file > open and navigate to your dxf
  • In the window that appears, make sure "original" size is selected
  • Hit okay
  • It may complain about not having a text file - just hit okay
  • Move your drawing to the top right corner of the file
  • Delete extraneous lines (solidworks will include a "only for educational use" decal)
  • Select the drawing and set the line width to "hairline" or 0.001" if that isn't an option