Reed Goodwin
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- Jan 18, 2009
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Hi all. Before TRF went down, I had a thread going about possibly making a fairing for my Boostervision camera to hold it outside my rockets during flight to get better reception from the flight. I think it's only fitting to describe how I finished the sucker.
I decided to make a foam shape and then put some fiberglass to help strengthen it. My goal was to have the camera housed outside a 2.1" airframe with a clear line of sight from the antenna to the ground. I tried a couple foams after I discovered that I didn't have any leftover 2" pink insulation board, but they all failed, so I ended up going to the store and buying some 1/2" insulation board and laminating several pieces with wood glue. Before I began carving the foam, I experimented with different ways to get the camera and battery into the most compact, space-saving shape possible and came up with this
I then began shaving the foam down with my pocket knife since I didn't have a hot wire foam cutter available. After much mess, I ended up with this
I then used some fiberglass that I had had from previous experiments to cover the foam to provide a hard covering. I think the glass is only around 1oz stuff, as I laid three layers and it was still very thin. I rotated each layer by 45 degrees to try and increase the stiffness in different directions. I also put some washers inbetween some of the layers, thinking I would use them for attachment to the airframe later. I did the lay-up on the airframe so that the extra glass would conform to the airframe.
Once the glass had cured, I removed it from the airframe with the help of the plastic wrap I had put on the airframe, and then trimmed the edges to make neat lines.
Reed
I decided to make a foam shape and then put some fiberglass to help strengthen it. My goal was to have the camera housed outside a 2.1" airframe with a clear line of sight from the antenna to the ground. I tried a couple foams after I discovered that I didn't have any leftover 2" pink insulation board, but they all failed, so I ended up going to the store and buying some 1/2" insulation board and laminating several pieces with wood glue. Before I began carving the foam, I experimented with different ways to get the camera and battery into the most compact, space-saving shape possible and came up with this
I then began shaving the foam down with my pocket knife since I didn't have a hot wire foam cutter available. After much mess, I ended up with this
I then used some fiberglass that I had had from previous experiments to cover the foam to provide a hard covering. I think the glass is only around 1oz stuff, as I laid three layers and it was still very thin. I rotated each layer by 45 degrees to try and increase the stiffness in different directions. I also put some washers inbetween some of the layers, thinking I would use them for attachment to the airframe later. I did the lay-up on the airframe so that the extra glass would conform to the airframe.
Once the glass had cured, I removed it from the airframe with the help of the plastic wrap I had put on the airframe, and then trimmed the edges to make neat lines.
Reed