Hi @Anonymous
if you have 3D model of runner system,
1) it can be directly meshed in to 3D runner and gates
2) if you are looking to model it as beam elements, extract center line of those runner and gate. bring that curves as iges model and assign properties. mesh as 1D elements.
3) hot runners, please contact your local hot runner manufactures support. generally they will be having 1D models of their hot runner system (except manifold - as it's customized for each molds)
if above points, not answered, please brief your expectation
Thanks
M P Pradeep Kumar
If my views / comments acceptable, provide "Kudos" as appreciation, if answers your query, please click the "Accept as Solution"