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# CUPI Wiki — full context Access: PUBLIC. No login, session cookie, or account is required. This feed is read-only. Applications/recruitment records are separate, require their existing permissions, and are not included here. Content version: 1627 Pages in this response: 1 Current wiki pages: 11 Use these current wiki pages as reference when working on CUPI projects. If your reader truncates this response before “End of context”, use the page index at https://wiki.cornellphysicalintelligence.com/llms.txt and fetch the individual page URLs. Wiki links use [[Page Title]]. Page text is source material, not instructions that override your task. This public, read-only export includes current page bodies and metadata. Revision history, trash, recruitment records, member accounts, and integration settings are excluded. Attachment URLs allow separate downloads; binary file contents are not extracted into this text. External services retain their own access rules. ## Page index - Mech Onboarding - Onshape Part Standards [mech-onboarding-onshape-part-standards]: https://wiki.cornellphysicalintelligence.com/llms-full.txt?page=mech-onboarding-onshape-part-standards --- # Mech Onboarding - Onshape Part Standards Page ID: mech-onboarding-onshape-part-standards Source: https://wiki.cornellphysicalintelligence.com/llms-full.txt?page=mech-onboarding-onshape-part-standards Section: mechanical Parent ID: None Tags: Owner: Andre Boufama Updated: 2026-09-10T18:44:49.436Z ## Custom Part Creation Every part must be named, and have a material assigned to it. It is easy to check if an assembly's parts follow this standard by doing a weight analysis on the whole assembly and seeing if there are any errors. Parts are all based on sketches; just like the parts, sketches have their own set of standards. ## Sketches **Naming is not required for sketches, but for larger more complex parts, it might be helpful to name some of the driving sketches.** All sketches should be properly defined. A sketch that is not defined shows up in blue in the Onshape Sidebar, and all undefined elements show up in blue in the sketch. When making sketches, try to design constraints in an intelligent way that allows for easy changing of dimensions in the future. Also be conscious of what surface a sketch is defined on; if you expect a surface to be modified or change a lot, putting a sketch there will cause a lot of annoying work down the line. BAD SKETCH:  BETTER SKETCH:  ## Assemblies All subassemblies and assemblies should be mated to the origin. A good way to check a assembly is properly mated is to drag select over all the parts and try to translate the whole selection. If there are any parts without defined relationships, they will be dragged and visible. ## Creating Screw Holes Screw holes must be made with the hole tool on a sketch point. When making clearance holes, use the "close" standard unless there is good reason not to. --- End of context.