Re: Flanger Operation

Posted by Keith Hayes on
URL: http://c-sng-discussion-forum.254.s1.nabble.com/Flanger-015-tp19711p19871.html


Chris rightly points out that my brass blade looks nothing like the blade on 015.

Yet.

I chose not to model the blade as part of the 3d print, partly because the shape is complex and would likely be very fragile. Intuitively, making it out of brass seemed smarter, and I knew that the 015 blade had multiple parts. There seems to be an 'original blade' shown in yellow. This is bolted to the blade on the opposite side and the guillotine frame. I think use dictated a second blade was added (shown in green). The profile of this blade more closely matches the flanger frame to keep snow off the rear truck, and allow higher drifts to be cut. But it was not high enough, nor did it spread snow far enough away from the track, so a third blade was added (in blue) This blade is about 48" tall, and extends a couple feet further from the side of the car. It appears to me there is also a reinforcing blade at the bottom edge (in orange) that frames the knife location. I will build these added blades from styrene, and use Tichy rivets, NBWs and Archer rivets for the attachment points.

Thanks for the reminder of the photo of the flanger in Como in the Pictorial Supplement. My copy has the full image, and the flanger is small and the contrast is high, so there is not much detail. The photo is credited to DPL, but I don't see it there. The quality of the photo and the light makes me think this was taken during the Denver Water Board tour.

Lastly, I apologize for the upside-down photos. When I turn my camera upside down to get the lens at scale-eye-height, evidently, the file is like a weighted contact lens and thinks the other side is up. The RAW data seems to fool the phone's photo editing software, too.