Let's take a look now at what's new in SOLIDWORKS 2025 for assemblies and assembly design. The Performance Evaluation tool in SolidWorks 2025 now includes several new results to help understand areas of your assembly that may be causing degradation in performance. Previous version reference gives a count of any files that have not been saved in your current version and often recommended step when upgrading SolidWorks to a new major release. Users can open the reference file to see the location of each out of date component. Graphic triangle counts are also included in this report, highlighting parts with over 5000 triangles. The file can be opened directly from this dialog to investigate and simplify as needed, such as removing these model threads in this fastener. SOLIDWORKS has multiple ways to work with complex assemblies, depending on your intended usage. Speed pack configurations been one of those options that creates a lightweight graphical presentation of your assembly. New in SOLIDWORKS 2025 speed pack configuration can be built at the top level of the assembly, dramatically streamlining the process needed to leverage this performance. Focus feature. With Speed pack creation, users can define faces, edges, parts, bodies, and more to be included or excluded. This speed pack includes base feet for mating into another assembly and the boom arm for interference detection. If used in a facility layout design. The speed pack graphical circle indicates what has been included or excluded in the Speed Pack configuration. SolidWorks 2025 also introduces a new system option for the display state of the Speed Pack circle. Users can now adjust the Display Circle display with a slider ranging from 10% to 100% opacity. This really helps when reviewing speed pack configurations, giving a much softer, visible appearance. Speed pack is just one way users can increase performance when working complex assemblies. Large design review is another feature that's been around for a while and in SOLIDWORKS 2025. See some really great new enhancements. Opening the top level in Arch Design Review, or LDR for short opens in just a few seconds. In 2025, LTL now supports breadcrumbs for navigating through your assemblies. It also introduces support for the Component Preview window. A great feature for investigating geometry directly in a second integrated window within your design session. This handle subassembly has reports of interference occurring in SOLIDWORKS 2025. Interference detection is now fully supported when working a launch design review. This is a great way to identify areas of concern without having to resolve any of your assemblies, making for a really nice addition to the growing functionality available in LDR mode. After verifying the interference, the protective housing component that is causing the interference can be seamlessly open, fully resolved directly from the LDR version. This allows for a quick modification to the correct hole dimension from a 40 mil diameter to the appropriate 16mm needed for proper clearance of the handle shaft. Working between LDR and fully resolved mode is easy. Using breadcrumbs to select the handle subassembly, it can be opened directly as a fully resolved model with just a few clicks. This handle has multiple display states created, which is a great way to represent the model by recalling hidden and shown components, alternate appearances, and more, without having to change the underlying geometry or modify configurations. However, when multiple display states are created, it can become difficult to manage all of these. 2025 now introduces a table that automatically compiles display state information for each component in the assembly, and each display state that's been created. This allows users to manage to space states with ease simply by toggling components on and off from each column of the display state and their respective row. The reflect the assembly tree instances changes can be seen in real time by applying the update and once complete. Click okay to save. Here we see a handful of open documents in this section of SolidWorks. In 2025, users can now create document groups that recall all open documents during a given session. Let's close everything out and take a look at how this works. When starting a new session from the home screen or recent documents group, you'll see a new tab. The documents Group displays all previously saved groups, which makes for a very fast and efficient way to open multiple parts assemblies and drawings with a single click. In this case, a series of assemblies have been loaded so I can continue working without having to locate and reload all of these recent files. Let's look at the internal built mechanism in the Proteus boom arm. This assembly has a surface offset from the main belt of about two 10th of an inch. The goal is to help understand possible downstream contact or interference issues. Solar works 2025 now supports the use of surface to solid and surface to surface interactions when calculating interference detection. The belts main structural components, along with the supporting brackets, are all selected and calculated. The results show no interference in this design. There are a few other fasteners that need to be mated into place in this assembly. Copy with mates is a useful tool to carry over components and the referencing mates. Now install the 2025 copy with mate supports, advance mates and mechanical mates such as this slot mate. Using the right mouse button menu, it's easy to select these entities and progress to the next field to define each new slot mate reference face all independent of each other. This is an extremely efficient way of carrying through redundant mating processes in your design. The copy with mates enhancement includes all mechanical and advance mates such as angular mates, limit distance mates, profiles, center mates. As we see here and many more. Now to set this subassembly as flexible and this additional monitor stand is complete and ready to be introduced into a new facility layout design. First let's start a new assembly to include the monitor stand along with Proteus Motion top level. Users will be excited to see that in SOLIDWORKS 2025, Y up and Z up workflows are available when creating new parts and assemblies. Watch as the triad moves from Y up to Z up, and the default planes have also been renamed accordingly. Now we'll simply add in our monitor stand, along with a speed pack configuration of the Proteus Motion. Using the mate Wizard, we'll select the new top plane that's been created from the Z up workflow and the base of the monitor stand, along with the Speed Pack configuration. To begin positioning our facility layout. These are just some of the great new enhancements for assemblies in SOLIDWORKS 2025.