Menu Overview Features How-To Guides Quotation Trial Support We have written a range of guides to get you started with Spring Calculator Professional. We add to these as often as possible, so please check back soon. If you’re stuck with anything to do with your software, please see our support options. Using Optimisation for Compression Springs in Spring Calculator Professional Designing Your First Compression Spring in Spring Calculator Professional Designing Your First Extension Spring in Spring Calculator Professional Changing & Customising Units in Spring Calculator Professional Modelling a Complex Extension Spring in Spring Calculator Professional