And someone already asked this but just to reiterate because I'm curious....how did you make that bow robot?
Very very carefully
Well I took a piece of wood that was the correct length and than sketched the outline of a bow and cut that out using a band-saw and than cleaned it up with sandpaper.
To attach the "hair" (actually lead core fishing line) I drilled a hole through the base which has a bolt with a hook mechanism to hold the "hair". on the tip I drilled two holes which the "hair" was threaded through and than tied off.
I am not sure how well the "hair" will work as I have not finished stringing the instrument.
and the draft said no store bought rosin is allowed so how did u make that too?
I was counting on the roughness of the Fishing line to work without rosin