預設公差資源庫

管理員通常會建立預設公差資源庫資料夾的架構。在建立之後，會在層級結構中最底層的資料夾中建立文件。 這些文件包含一或多個 Variable Studios，其中包含預設公差的值。可在同一文件中建立多個預設公差 Variable Studios，同時也可以在資源庫資料夾中包含多個文件。階層結構概述如下：

預設公差資源庫是特殊的資料夾，其中包含在 Part Studio 中用做為範本並套用至零件的預設公差。每個公司可以有一個由管理員所擁有的預設公差資源庫資料夾，為公司提供的共享權限可讓公司中的每個人存取與使用在指定資料夾中的預設公差。此外，每個使用者可以就其個人的使用設定一個預設公差資源庫資料夾。這個資料夾並不需要特殊的許可權限。個人的預設公差資源庫資料夾是由個別的使用者存取及使用的。

Onshape 在 Onshape 預設公差 資源庫中提供標準的預設公差。詳細資訊請參考 Onshape 預設公差資源庫。

1. 系統會在 Onshape 資料夾中建立預設公差並儲存。取決您要設定與管理資源庫的方式，可以從「文件」頁面中：

   1. 建立一個資料夾。必須在根資料夾中建立公司資源庫。這是用在選擇預設公差對話方塊中的資源庫欄位中。

   2. 選擇性地在第一個資料夾之下建立第二個嵌套資料夾。資料夾的名稱會用於選擇預設公差對話方塊中的標準欄位上。

   3. 選擇性地在第二個資料夾之下建立第三個嵌套資料夾。資料夾的名稱會用於選擇預設公差對話方塊的類型欄位中。

   如果在您的階層架構中有兩個資料夾，第二個嵌套資料夾的名稱會用於「預設公差」欄位中。

2. 如果這是公司帳戶的資源庫，則請在「文件」頁面中：

   1. 按一下您階層架構中根資料夾的 「共享」 圖示來開啟共享設定對話方塊：

      

   2. 選擇「Company」分頁。

   3. 核取「連結文件」與「共享」的核取方塊。

   4. 按一下 共享 按鈕：

      

   5. 按一下 關閉 按鈕。

3. Set the library as a default by right-clicking on the root folder and selecting Set library > My default tolerances:

   

Once the Folder structure is set up, you need to add at least one Document into the lowest nested folder. This document must contain at least one Variable studio tab that contains default tolerance values. Here is a top-level overview of the required steps:

1. The Document is created in the lowest nested folder.

2. The Variable studio tab is inserted in the Document.

3. From the Inspection table in the document's Part Studio tab, the Default tolerance values are edited, added, and saved.

4. The Document is versioned.

5. The top level folder is updated.

Follow the detailed steps below to author a Default tolerances library document:

1. Create a new Document inside the last folder in the hierarchy created above in the Creating a Default tolerances libraries folder section. The Document name is used in the Select default tolerances dialog as the label for the bottom-most dropdown selection when a user selects a Default tolerances library.

2. Click the Insert new tab icon () and select Create Variable Studio (). This is used to house your Default tolerances.

3. Optionally, right-click and select Rename to provide a name for the Variable Studio tab. This name is used in the Select default tolerances dialog as the bottom-most dropdown selection when a user selects a Default tolerances library.

   You can store multiple Variable Studios in a single document. Each Variable Studio can be set up to refer to one set of Default tolerances. You can also have multiple Default tolerances Documents in the last folder in your folder hierarchy.

   

4. Switch back to the default Part Studio 1 tab and create a sample part to test out the tolerances you are about to set up as default tolerances in the library.

5. Click the Inspection table icon () to open the Inspection panel.

   

6. Click the Select default tolerances button:

   

7. The Select default tolerances dialog opens. Click Current document, and click the Variable Studio you created from the list:

   

8. Click the X in the upper right corner to close the dialog. An error message is displayed in the Default tolerances table:

   

Alternatively, you can copy one of the Onshape Default Tolerances library specifications into your document as a Variable Studios tab. See Copying Onshape Default tolerances into a document. Once that is done, continue with the steps below.

9. Click the Edit default tolerances button () to open the Editing dialog:

   

10. Click the Add tolerance type button at the bottom left and select from the following tolerance type options: Linear tolerances, Angular tolerances, Chamfer angles, Chamfer distances, Fillet radii, and Custom class (either With linear tolerance unit or With angular tolerance unit):

    

    You can add as many tolerance types, and as many default tolerance values under each type, into the Default tolerances table, as required.

    1. If this is a Custom class, you must enter a Display name and Custom Feature Class ID before proceeding:

       

    2. For all other tolerance types, you are presented with 3 options to define your tolerance value type:

       

       • Constant - Defines a fixed and unchanging tolerance value, such as +/-0.01 in.

         

         Example of a Constant default tolerance

         

         

         Example when switching the +/- button to change to a symmetrical tolerance

       • Precision - Defines a level of detail (decimal placement) for the tolerance values, such as x, x.x, x.xx, x.xxx, and so on.

         

         Example of a Precise default tolerance

       • Range - Defines the upper and lower limit (min/max) for tolerance values, such as +0.6 / -0.4

         

         Example of a Default tolerance Range

         Clicking the Add range button opens an option menu where you can select a range that is Up to or Over a specified tolerance value:

         

       To remove a row in the Default tolerances list, click the Remove row (X) button to the right of the row. Only the last row in any Default tolerance table can be removed.

       

11. Add the tolerance values into the table, as required. When done, click Save. Alternatively, click Cancel if you would like to exit without any changes.

12. After saving, the default tolerances are shown in a dropdown at the bottom of the Inspection table:

    

13. Click Create version () on the Document panel. Enter a version name and optional description. Then click the Create button:

    

14. Update the default tolerances library. This step must be performed each time there is a change made to the Default tolerances library document. See Updating a Default tolerances library below.

If changes are made to a Default tolerances document inside a Default tolerances library folder, the folder must be updated to have the new changes propagate to any Part Studios that reference those Default tolerances.

From the Documents page right-click on the Default tolerances library folder and select Default tolerance library > Update my library:

To remove a folder's designation as a user/company Default tolerances library, right-click on the folder from the Documents page and select Default tolerance library > Unset my library (shown in the first image below).

The folder changes to a standard folder icon to indicate this is a standard folder (), shown in the second image below:

The folder and its content are not deleted.

Once the company or user Default tolerances library is created and contains one or more Default tolerances Variable Studio, they can be inserted into your Inspection table to set constraints for parts in the Part Studio.

1. From any document's Part Studio, ensure there is at least one part, and that part has a tolerance applied to one of its features (For example, an Extrude feature > Depth tolerance), or an annotation applied to one or more of its faces (a datum, dimension, geometric tolerance, or weld symbol) via the Inspection table:

   

   已套用基準與尺寸的零件

2. On the Inspection table, click the Select default tolerances button at the top:

   

3. The Select default tolerance dialog opens. From the Default tolerances location, select the library (Onshape Instructor default tolerances in the first image below).

   Depending how your folder structure is set up, you may also have additional dropdown selections (such as Standard and Type) from which to select.

   Finally, select the default tolerances (Default tolerances (Document) and Tolerance Set A (Variable Studio) in the second image below):

   

4. 按一下 Done。

The default tolerances are shown in a dropdown at the bottom of the Inspection table:

• A non-zero blank tolerance value is supported.

• Zero (0) tolerance values, as well as negative upper/lower(-/-) and positive upper/lower (+/+) values are supported.

• Default tolerances library folders cannot be deleted. First unset the folder, then delete it.

• Share permissions for Default tolerances library folders cannot be edited. First unset the folder. The share permissions can then be edited.

• As you edit Default tolerances, they can be applied to sample part(s) in the Part Studio, to see their effect:

  

• 「檢查」面板的「尺寸」工具 () 永遠是使用線性或角度的預設公差。使用此工具來標註圓角面的尺寸會套用線性的預設公差類型。基於此一理由，建議在「圓角」特徵對話方塊中套用圓角公差 (對於驅動尺寸)，或是使用「檢查」面板內的圓角尺寸 (對於從動尺寸)。

  

  標註圓角面尺寸：按順時針方向註解：使用「尺寸」工具 (從動；以灰色註解)，使用圓角尺寸工具 (從動；以灰色註解)，使圓角特徵的半徑值具有公差 (從動；以黑色註解)。3 個尺寸都會列在 Characteristics 表格中。