06-26-2014, 06:22 PM
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Master Modeler
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Join Date: Mar 2005
Location: Hillsboro, OR
Posts: 2,853
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I've made an interchangeable 3 x 18mm mount where the motor mount tube fit into notches in a BT-60 coupler. The coupler, which is just 1" or so long, sits ahead of the motor mount tubes.
The same model can also handle 1 x 24mm and 1 x 29mm.
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NAR #27085 - Oregon Rocketry - SAM
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