Insert submodel

The Insert submodel tool is a useful option in MBsysPad when, due to the complexity of the model, we prefer to work in submodels separately and then assembly them in a main model.

Example: Five Point Suspension front model

For the following example, you can use the model Five Point Suspension available in the Robotran website. You will create a main model and you will have to insert the submodels.

Step 1: Create the “main model”

The main model is composed of the following elements:

  • The Base

  • 6 Joints in the following order from the base: T1-T2-T3-R3-R1-R2

  • One body Chassis

    Main model

    Main model

See the section Bodies and joints to review how to create a model in MBsysPad.


Step 2: Open and modify the submodel

Here you will use the example Five Point Suspension and you will modify it and adapt it before being inserted to the main model:

  • Install examples from Robotran (clock on the menu Settings > Install Examples)

  • Open your *.mbs file in MBsysPad

  • Delete the following elements:

    • The Poster body

    • The joint T3 attached to the Poster body

    • The anchor point of the base

    • The base

    • The joint T3 attached to the Chassis body

  • Attach the Chassis body to the base

    • Click the base point and drag it to locate approximately the base at the previous Chassis position

    • Click on the Chassis body

    • Drag the grey square of the Chassis body and put it on the grey point of the base

  • Save the model in the project:

    • Click on the menu File > Save As

    • In the same directory as the main model, save your new submodel

    Submodel

Step 3: insert the front-left submodel

  • Click on the menu Tools > Insert submodel.

  • Select your submodel in File to import option.

  • In Body to attach onto option select Chassis.

  • In 3D model modifications:

    • Transation X: 1. The physical model will be introduced at a distance of 1 m from the Chassis.

    • Check the option Flip along Y. The model will be mirrored along the Y axis to be introduced on the left side of the 3D physical model.

  • In 2D diagram modifications:

    • Translation Y: 200. The position of the submodel will be modified in the Y direction only in the MBsysPad, but the real coordinates of the model won’t be modified.

    • Check the option Flip along X. The model will be placed on the left side of the Chassis in MBsysPad, but its real coordinates won’t be modified.

  • In Component renaming:

    • Check Common to modify the suffixes of all elements.

    • Introduce _FL to add the suffix that will differentiate the elements of the front-left suspension from the rest of the model.

    Insertion submodel window Half model 3D model Half model 2D diagram

REMARK:

Remember to save periodically so as not to lose information. If you have a problem with the insertion of the submodel you can get your last saved copy back by clicking on the menu File > Reload Project.

Step 4: insert the front-right submodel

  • Click on the menu Tools > Insert submodel

  • Select your submodel in File to import option

  • In Body to attach onto option select Chassis

  • In 3D model modifications:

    • Transation X: 1. The physical model will be introduced at a distance +1 m from the Chassis.

  • In 2D diagram modifications:

    • Translation Y: 200. The position of the submodel will be modified in the Y direction only in the MBsysPad, but the real coordinates of the model won’t be modified.

  • In Component renaming:

    • Check Common option to modify the suffixes of all elements.

    • Introduce _RL to add the suffix that will differentiate the elements of the front-right suspension from the rest of the model.

Front 2D diagram

Front 2D diagram

Front 3D model

Front 3D model

Step 5: insert the rear suspensions

To insert the rear suspensions, do the same process by adapting the values in the insertion window.

Complete 3D model

Complete 3D model