Peter Zaborski wrote:
>
> The TR6 came with a one piece radiator cowling (or duct) which is made
> of a black cardboard like material. I guess this material tends to go
> bad with repeated wet/dry cycles and probably rots away eventually.
> Although mine is not at this stage, it is kinda dirty and I really would
> like to replace it.
>
> I notice that VB has a replacement duct listed made of ABS and costing
> $65 US. This seems like a lot to pay so I am hoping to make my own. Not
> knowing anything about plastic fabrication I am looking for some hints
> on how to proceed.
>
> Specifically, I think that the "hinging" properties of the original
> paper duct should be retained to maintain the ability to remove the duct
> if required and to fine tune the final fit. Any ideas on how plastics
> can be hinged? I suspect I will be able to use a door hinge of some sort
> but perhaps there is a better solution? I suspect that "creasing" the
> plastic like the paper was creased would not produce the desired hinging
> effect but rather probably weaken the plastic.
>
> Also I assume that ABS in 1/8" would be a good choice for this
> application?
>
> Looking forward to any help from plastics experts...
>
> Peter Zaborski
> 76 TR6 (CF58310 UO)
> Calgary AB Canada
Peter, polypropylene sheet will form a "living hinge"when
creased.However any plastic film will crease OK without seriously
weakening.
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