It take me over 2 months to prepare the parts: cleaning defaults, filling bubbles (always with the hedgehog method: superglue and small plastic rods) and gaps ...

Some parts were bent and reshaped with a bath of hot water or heat gun.

I had no 0.5mm optic fiber, so I ordered a 6000m roll from China (aliexpress), and was surprised to receive it the next week (I was expecting a 3-5 weeks delay).

The assembly starts with the lower part, so the two large triangles.
Each triangle is made of three parts, which don't have the same thickness...
And putting them back to back, one can see that the two sides are not symmetrical...

The first gap between the two sides is filled with a resin rod (a resin remaining piece from the cleaning step, shapped with a sanding belt machine).

To be sure that the parts are aligned, they are glued in holding them firmly flat on the table (or a wood board) with pliers. A second gap is the thickness of the plates, which is not uniform from one part to another and it needs to be uniformized to facilitate bonding. Therefore, according to places, I glued 1 to 1.5 mm thick plastic cards.

Note, for this type of kit, it is best to have the fixed and portable electrical equipment to go fast: belt sander, band saw, sander, drill, screwdriver, jigsaw ... and a vacuum cleaner for particles and resin dust. So DIY machines and not just modelling machines.