I would like to know if anyone has a calculation or formula for working out the theoretical clamp force that a standard Injection Moulding machine would need to use when "Sliding Dies" or "Sliding Blocks" are used. I use a proven formula for straight forward, two plate tooling but when it comes to moving cores on angle pins I have a problem, I think that theoretically there should be little difference and the reason why I need high clamp force is because the heel block or the core block is not hard on. Any suggestions?