While drilling my rear HS spar and doubler, I secured it to the drill press using bar clamps with the flanges supporting the spar:
https://eaabuilderslog.org/?blprojentry&proj=7gbEJNhMU&e=7ofGzWhpU&listcat=&sid=
Is it possible to damage the flanges or web of the spar this way? It is not easy to support it with blocks since there are clecos protruding under it. The clamp force is not too great, but I am wondering if it is flexing or stressing the metal.
https://eaabuilderslog.org/?blprojentry&proj=7gbEJNhMU&e=7ofGzWhpU&listcat=&sid=
Is it possible to damage the flanges or web of the spar this way? It is not easy to support it with blocks since there are clecos protruding under it. The clamp force is not too great, but I am wondering if it is flexing or stressing the metal.