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I previously mentioned the Gilles Nehr Tete Beche violin bow in another thread that went completely un-noticed except for Fiddlerman.  The ideas in the bow are very exciting to me and makes the process of bow rehairing a simple matter for the violinist without the need for a luthier.  I strongly recommend looking at his Youtube videos and web page.  The recent Fiddlerman blog item of a titanium frog appears to be derivative of Nehr's work.

I really want a bow (or several) like this but do not want to pay $6,000.  So I am going to try to make them myself starting with carbon fiber bows that were unfit for conventional rehairing by having super glued maple hair wedges.  I obtained several of these for about $10 per stick.

My next step was to look around for a light weight and ergonomic thumb screw for the frog end.  I did not find much of interest until I found an upgrade to a GoPro knob called Maximal Power CA GP CNC Screw (bk).  3 come in a package for about $8 on Amazon.

Perhaps overkill, but I wanted to obtain an axial bearing for the thumb screw with a 5 mm ID and 10 mm OD.  I got 10 for $5 with shipping from China.  

I already have a Proxxon pantograph engraver so I will start proto typing the tip end next week.