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Archive for July 16th, 2017

Tour Easy: White ABS vs. Six Years of Sunlight

These white ABS fairing plates held the Zzipper fairing on my Tour Easy ‘bent since 2011:

ABS Fairing Plates - 6 years

ABS Fairing Plates – 6 years

Over the course of those six years I’ve ridden about 6 × 2500 = 15000 miles, maybe more, maybe less. I can ride at 15 mph for a while, but 12 mph seems a more reasonable overall estimate, making for a bit over 1000 hours. Figure the bike spends that much time sitting outdoors at the far end of the ride and you’re looking at what 2000+ hours of sunlight does to ABS.

In addition to discoloration, the plates have become brittle, as shown in the chips in third one down, and permanently deformed due to the pressure of the nylon bolts compressing the black foam against the fairing.

A closer look at the top plate:

ABS Fairing Plates - 6 years - detail

ABS Fairing Plates – 6 years – detail

My 3D print quality has improved a lot since then.

New plates of a different design are, as NASA puts it, “in work”.

The pix come from the new LiDE 120 scanner. It does a good job with the color, but has (for good reason) an essentially zero depth of field: if it’s not on the glass, it’s out of focus.

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