Slaughtering the donor frame

The first thing before starting with the detailed design of the frame geometry was to slaughter the old frame and see which parts I can re-use, so as to design a frame around these parts.

The frame was a classical woman type with these upper bent stays from the rear dropouts to the head tube. Here it is, after disassembly.



The bent stays and the chainstays were cut, as well as the head tube and front dropouts. All these parts will be re-used. Here are the results...








I left the down tube and the seat tube uncut for the moment, as I have the idea of producing a bolted design but I am not yet sure about how to fabricate the coupling points in the existing frame. There will be a lot of time to consider this problem as I am busy with the fork construction.

I measured carefully the distance between the center of the bottom bracket and the point in the rear dropouts where the center of the wheel will be normally fixed. This distance I will take as a fixed parameter in my spreadsheet for frame geometry design.