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Making recess on mandrel

pip pin recess

Making pip-pin recess: 2002 03 28.

Canon AV-1, Fujichrome Velvia 50.

The second pip-pin recess curing on the mandrel, with one I made earlier in front of it. The surrounding stuff is just a piece of scrap aluminium sheet arranged to keep the mandrel upright during cure, and thus maintain a flat bottom on the well.

Drain hole liner

drain hole liner

Drain hole and liner: 2002 03 28.

Canon AV-1, Fujichrome Velvia 50.

This is one of the pieces of paxolin tube I used to line the drain hole on the underside of the tailplane, standing adjacent to the hole it will line.

Pip-pin hole tools

pip-pin hole tools

Tools and jigs for pip-pin holes: 2002 03 28.

Canon AV-1, Fujichrome Velvia 50.

For the pip-pin wells and drain holes, and drilling the torque tube, I made and used the surprising number of tools and jigs collected here. Also included at left are the offcuts from the wells on the upper surfaces, and at right those from the drain liners on the lower surface.

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