how to add or subtract a seperate step file out or onto a part

Answers

• jsejcksn Member Posts: 9 ✭

  December 22 edited December 22

  Summary

  There are essentially two steps required to import a part from a compatible STEP file into an existing part studio:

  1. Import the STEP file into your existing document. See Importing and Editing a Part > Option 2: Import into an existing document. This will create a new part studio containing the part from the step file.
  2. Use the Derived feature from your other part studio to insert the imported part into it.

  Example

  Here's a link to a public document that demonstrates those steps:

  https://cad.onshape.com/documents/83c96d1b814510cc9ec593e5/v/3651d456466af67de53822ef/e/ec21ee0f2306a05f9b3cc785?showReturnToWorkspaceLink=true

  In the document, there are two part studios that I created:

  • one for a cube part that I designed in that document (named "cube") and
  • one for working with multiple parts (named "multiple parts") — e.g. performing boolean ops like subtraction

  There's also one part studio that was created by Onshape during the import: I used the import command inside the document to upload a STEP file containing a sphere part. Onshape automatically created a part studio containing the sphere part — I think Onshape named this part studio according to the STEP file name, but I renamed it to "sphere (created during import)".

  When uploading a file (e.g. a STEP file), Onshape creates a folder named "CAD Imports" and moves the actual file into that folder. In Onshape, you can't work with the STEP file directly, but it needs to remain within the document as a reference for the usable data that is created from it (e.g. part studios).

  After that, I navigated to the part studio "multiple parts" and:

  • used the Derived feature to insert the cube part from the part studio "cube"
  • used the Derived feature to insert the sphere part from the part studio "sphere (created during import)"
  • moved the sphere part using the Transform tool
  • removed its intersecting geometry from the cube using a Boolean subtraction feature

  I hope this provides some clarity!

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