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| A biscuit in place |
In late August and early-to-mid-September we finished developing the tools to biscuit the carbon fiber tubes, practiced with a clear tube to make sure the gluing process was working correctly, and then biscuited all the tubes in the fuselage frame. We are now ready to miter the tubes and glue and lash them together.
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| Lashing the prongs on both biscuiting tools |
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| Practicing with a clear plastic tube |
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| Practicing biscuiting with a clear plastic tube |
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| Putting syringe in biscuiting tool |
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| Putting biscuit on tool |
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| Prepping a carbon fiber faced biscuit for the Top Tube |
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| Putting a biscuit into top tube, and turning the tube while gluing |
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| Pulling the syringe strings with a dowel to expel the glue |
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| Biscuits ready for biscuiting of the fuselage |
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| We have it down to a system now |
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| Tape marks location of biscuits so we know where to pinch upon tool removal |
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| Clear view of syringe in yoke |
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(Video) Biscuiting the Top Tube
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| Adding balsa shim to too-small biscuit for fuse tube |
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| Fuse tube (holds bearing seats for prop shaft assy) |
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| Carbon Fiber faced biscuits w/ balsa shims for Fuse Tube |
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| Finishing the shims |
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| Fitting the biscuits |
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| Fuse Tube w/ Biscuits |
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| Clamping the Chain tube to try to keep circular (ovalized due to spar caps) |
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| All the large fuselage tubes biscuited and ready for assembly |
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