Spring.tcm is a macro written in VBA that creates variable-rate compression springs with user control of height, amount of compression, winding direction, diameter, wire size, and location. A help file is built into the user form.
This macro is intended as a replacement for the CurveLab spring tool for v7 and later users (the macro does not run on v6). The CurveLab based spring tool will remain for the benefit of v6 users.