Generative Design for Manufacturing Expert Certification Prep

Outline

Pre-test

Before you begin this course, test your skills by taking the following assessment to see where you stand.

Keep track of your incorrect answers to know which skills you should study. You'll have a chance to take this same practice test again at the end of the course to see how you've improved.

Test

44 questions

1. While working on an assembly design, a mechanical engineer created a new component to be used as a construction object, but it is not a primary component of the design. The mechanical engineer does not wish this construction object to affect the mass, center of gravity, or appear in the Part List on a drawing. How can the engineer accomplish this after the construction object is no longer needed?

Toggle the component to Unselectable
Delete the component from the design
Toggle visibility of the component to hide it
Remove the component from the design

Error: Select an answer

2. Refer to exhibit.

A mechanical engineer has set up a Generative Design study to use Aluminum 6061 and 7075 materials with costing data for CNC milling and unrestricted manufacturing methods.

Upon reopening of the materials dialog, the mechanical engineer no longer sees the materials as shown in the exhibit.

What is an explanation for the materials not showing up in the study?

Study materials are only applied once a study is solved.
The material selections were not saved properly before closing the material dialog.
Aluminum 6061 does not contain costing data so the materials were reset.
The materials are listed under a specific manufacturing method not under all methods.

Error: Select an answer

3. When defining manufacturing methods in a new Generative Design Study, a mechanical engineer considers the possibility of 3D-printing design outcomes.

The mechanical engineer wants to print parts with the least possible support material, but must have the layers oriented to achieve the highest strength in their part.

Which setting in the Additive method will assist the mechanical engineer in achieving their goal?

Increase the Minimum Thickness to compensate for reducing the density of supports when printing.
Include all six directions, then merge all the outcomes to have layers in each axis.
Choose only positive Orientation directions to produce a part with higher strength.
Adjust the Overhang Angle to match the maximum acceptable overhangs the printer can produce.

Error: Select an answer

4. A mechanical engineer is unable to find a specific aluminum material for use with a Generative Design study.

They have sourced an Aluminum 7075 with a Young's Modulus of 78.300 GPa and a Yield Strength of 472.000 MPa, both of which are larger than the 7075 inside of the Fusion Material Library.

What course of action should the mechanical engineer take?

Consider a different material choice that is available in Fusion 360.
Use the closest available aluminum, but modify the load cases to suit the material.
Add the closest aluminum to their favorites and edit the mechanical properties.
Increase the minimum safety factor in the Objectives and Limits dialog.

Error: Select an answer

5. Refer to exhibit.

A mechanical engineer is setting up manufacturing methods for a generative design study for a bicycle crank arm.

The mechanical engineer must consider CNC machining as the main manufacturing method for their low volume production facility.

The mechanical engineer has set up the following milling configurations as seen in the exhibit.

Configuration 1 - 2.5-axis +X

Configuration 2 - 3-axis +X -X

Configuration 3 - 3-axis all 6 direction

Configuration 4 - 5-axis

All milling configurations use the same minimum tool diameter, shoulder length and head diameter.

Which one of these configurations will cause a warning?

Configuration 4
Configuration 1
Configuration 3
Configuration 2

Error: Select an answer

6. Refer to exhibit.

A mechanical engineer is preparing a Generative Design study for a wall-mounted bracket that will have a cable spooled on the shaft of the pin pictured in the exhibit. The bracket will be affixed to the wall with 4 bolts that will engage with anchors in the wall.

The bracket must be manufactured out of AlSi10Mg in the +X orientation by an additive manufacturing vendor. The interface between the wall and the component will have surface finishing operations to ensure the roughness is within a specified tolerance after wire-EDM removal from the build platform.

Which two structural constraints must be applied to the depicted selections to ensure the bolt fixturing is represented correctly? (Choose two.)

Select 2 answers below.

Selection 3 fixed in Y/Z
Selection 1 fixed in X
Selection 4 fixed in X/Y/Z
Selection 2 fixed in Y/Z
Selection 2 as Frictionless

Error: Select 2 answers

7. A mechanical engineer receives a CAD model of a worm gear from a colleague. Upon inspection of the gear, the mechanical engineer notices there are no fillets at the base of the teeth.

The design history appears to have a sketch of a single tooth which is extruded and patterned about the central axis.

Which workflow will enable the mechanical engineer to apply constant radii fillets to all 30 teeth in the most efficient method possible?

Apply standard Fillet, selecting pattern feature with Variable radius type
Apply standard Fillet, selecting front and back face of gear with Constant radius type
Apply Full Round Fillet, selecting existing fillets on top of tooth geometry
Apply Rule Fillet, selecting extrude and pattern features with a Fillets Only topology

Error: Select 2 answers

8. Refer to exhibit.

A mechanical engineer has exported a generative design outcome to the Design workspace. Upon inspection of the Form body, the mechanical engineer notices a protrusion on the back face of the component.How should the mechanical engineer correct the discontinuity using the Form toolset?

Select all affected faces in the region and use the Delete tool to remove the discontinuity.
Select the faces on the opposite side of the protrusion and use Pull to revert its direction.
Select all affected faces in the region and use a Smooth operation to reduce the protrusion.
Select the faces around the affected region and use the Bridge tool to cover the protrusion.

Error: Select 2 answers

9. Refer to exhibit.

A mechanical engineer has set up a Generative Design study with preserves, obstacles, loads, constraints, materials, and manufacturing methods.

The mechanical engineer started to generate the outcome but it failed to produce a result even though the pre-check stated that it has all the required information.

What would cause this study to fail to solve?

The preserve regions do not have line of sight so it is not able to generate an initial build volume.
The study needs to have at least 1 more obstacle region than preserve region.
The study needs to have at least 1 more preserve region than obstacle region.
The study is missing a load or constraint for one of the preserve regions before it can solve.

Error: Select 2 answers

10. A Generative Design study includes an object that is intended to be designated as a starting shape for the design.

Which two statements must be true about the Starting Shape geometry for the study to complete successfully? (Choose two.)

Select 2 answers below.

The Starting Shape must contact the Preserve Geometry.
The Starting Shape must be assigned a material.
The Starting Shape must be a solid body.
The Starting Shape must be symmetric in one axis.
The Starting Shape must be a freeform body.

Error: Select 2 answers

11. Refer to exhibit.

A mechanical engineer is setting up a new Generative Design study to produce a new component.

On one piece of Preserve Geometry, a hole will be connected to a neighboring lever part that will not be included. The lever is designed to push using a bolt to transfer force to the Preserve Geometry.

Which load type would be most-appropriate to represent how the bolt will transfer the force at the connection hole?

Remote Moment
Remote Force
Bearing Load and a Moment
Pressure

Error: Select 2 answers

12. Refer to exhibit.

A mechanical engineer is about to run a generative design study after a final check through the design space setup.

The exhibit shows all preserve and obstacle geometry currently defined in the study.

Without knowing anything else about the setup, what problem will become apparent during the solve that should have been done prior to solving?

Structural constraints are too restrictive to allow for a real world movements in the design.
Tool obstacles are much larger than needed for such a small part and will restrict outcomes.
Obstacles should have been created for the 4 preserve regions to prevent building geometry where hardware is needed.
A Starting Shape should have been used to drive the design toward a specific solution.

Error: Select 2 answers

13. Refer to exhibit.

A mechanical engineer has inserted a manufacturer's single mesh body into the current design and would like to center the main cylinder body on active component's origin.The mechanical engineer used the Position option to center but has received the result shown in the exhibit.How can the mechanical engineer position the coordinate system at the desired location?

Use the Move to Ground option in the insert dialog.
Manually move the mesh using the on screen manipulators.
Select the cylinder and then re-select the center position option.
Use the Flip Up Direction option in the insert dialog.

Error: Select 2 answers

14. Refer to exhibits.

A mechanical engineer is setting up the Manufacturing methods in a new Generative Design study for a prototype electric scooter suspension component.

The company has a plasma table, 3-axis CNC mill, and a 4-axis turning center to produce parts in their facility.

Which outcome shown would meet the company's criteria for available manufacturing technology, and minimal fabrication time?

Exhibit 2
Exhibit 4
Exhibit 3
Exhibit 1

Error: Select 2 answers

15. A mechanical engineer needs a material with specific mechanical properties for a Generative Design study.

While looking through the Material Browser, the mechanical engineer notices there is an entry in the Fusion 360 Material Library with similar properties.

How can the mechanical engineer quickly modify the properties in this material with the correct values?

Edit the similar material directly and change the name to match the new material.
Create a new material category in the Favorites library and edit an empty material.
Add the similar material to the Favorites library and edit the properties accordingly.
Replicate the Physical properties and edit accordingly within the similar material.

Error: Select 2 answers

16. A mechanical engineer has identified a potential Generative Design outcome for export. Upon closer inspection, the mechanical engineer notices that there are several thin struts in the geometry that would prove to be problematic for the associated manufacturing method.

This design is a non-functional prototype, and the mechanical engineer wants to ensure that a predefined manufacturing plan is suitable for the optimized geometry.

The mechanical engineer has only a few hours to submit a proposed design for a budget meeting, which if missed will delay the part's production by 3 months.

Which of the following should the mechanical engineer do to ensure that the part can be produced within the upcoming fiscal quarter?

Use Properties View and filter the volume range to be larger than current outcome to ensure strut thickness is appropriate.
Redefine the minimum thickness parameter in the Manufacturing dialog and solve the study again.
Scroll back outcome iterations to one with acceptable strut thickness and export as a design.
Use Scatter Plot View to group visually similar parts and export a similar unrestricted outcome with acceptable strut thickness.

Error: Select 2 answers

17. Refer to exhibit.

A mechanical engineer has created the sketch shown in the exhibit.How is the diameter of the circle defined?

Tangent relationship with the edge of the part.
Coincident constraint with the edge of the part.
Equal constraint between both circles.
20mm dimension applied to the circle.

Error: Select 2 answers

18. A mechanical engineer receives a 3D model from a customer that requires modification prior to manufacturing. The mechanical engineer wants to ensure that any changes are included within the Fusion 360 design, document the changes, and allow for future adjustments. How can the mechanical engineer ensure that any new features will be tracked within the design?

Capture the design history
Expand the model browser
Start a new sketch on a flat surface
Create a component from the imported body

Error: Select 2 answers

19. Refer to exhibit.

A mechanical engineer has set up a Generative Design study for a component that provides fixturing around a curved instrument panel.

Before solving the study, the mechanical engineer uses the Previewer to validate the setup and is prompted with Message 1. The mechanical engineer accepts the suggested course of action to increase the detail level parameter to high. This, however, yields Message 2.

Which of the following can the mechanical engineer now do to ensure a valid outcome will be generated?

Define a Starting Shape for the Generative Model.
Hide the Obstacle geometry to view the preview.
Set the detail level parameter to Medium.
Increase the Synthesis Resolution for the study.

Error: Select 2 answers

20. A mechanical engineer is tasked with performing a economic feasibility study on Generative Design outcomes for a retrofit project, while adhering to the following design constraints:

Component should have less mass than the existing solution

Iterative manufacturing option with potential downstream design changes

Component should be cheaper than existing solution

Potential minor variability in load cases should be supported

Which of the following is the best visualization approach to identify outcomes that fall within the project budget and satisfy the outlined design constraints?

Scatter Plot View tracking max displacement as function of fully burdened cost, keyed by material.
Scatter Plot View tracking fully burdened cost as function of mass, keyed by manufacturing method.
Properties View with filters applied around acceptable fully burdened cost and mass ranges.
Table View with filters applied around acceptable mass and factor of safety ranges.

Error: Select 2 answers

21. Refer to exhibits.

A mechanical engineer has exported a Generative Design outcome as both a design and a mesh as seen in the exhibits.

The design will be 3D printed using a metal additive type machine and the mounting holes will be drilled after fabrication to ensure tight tolerances are held.

A critical aspect of the design will be the smooth transitions between the Generative Design body and preserve regions and the design must be validated through simulation.

What is the likely reason the mechanical engineer decided to export both the design and mesh versions of the same outcome?

The design and mesh will both contain the same simulation setup data but the mesh data can be directly 3D printed without additional steps.
The mesh will contain simulation setup data and can be validated through FEA while the design version will contain an organic form body to modify.
The design will contain simulation setup data and can be validated through FEA while the mesh version has smoother transitions between bodies.
The mesh can easily be converted to a smooth solid body and the design will contain simulation setup data and can be validated through FEA.

Error: Select 2 answers

22. Refer to exhibit.

A mechanical engineer is preparing the design shown in the exhibit to be used as a starting shape.

The design contains a pocket that blends to the organic outside shape.

The pocket will be used for obstacle geometry.

Which surface tool is the best option to create geometry with a smooth surface to match the surrounding shape for an obstacle?

Loft
Extrude
Patch
Sweep

Error: Select 2 answers

23. A mechanical engineer wants to define two Generative Design studies to explore a design with and without a Starting Shape. The Generative Model used in Study 2 will include a Starting Shape and variations of obstacle geometry.Each study needs to be populated with the same load cases to describe how the generated component will be loaded in the field.Which method can be used to ensure all criteria are met?

Clone Study 1 inside the Generative Model with identical load cases.
Copy and Paste the load cases from Study 1 to Study 2.
Clone the Generative Model and add the required geometry.
Copy and Paste individual loads from Study 1 to Study 2.

Error: Select 2 answers

24. Refer to exhibits.

A mechanical engineer is creating a simplified linkage model to be used as an obstacle for a generative design study.What design approach did the mechanical engineer take to change the linkage in exhibit 1 to the simplified version in exhibit 2?

Remove faces
Replace with primitives
Sketch and extrude
Remove features

Error: Select 2 answers

25. Refer to exhibit.

A mechanical engineer has inserted a mesh body into an existing design. The mechanical engineer would like to remove the hole while preserving the external contour of the mesh.The current output of an Erase and Fill operation is depicted in the exhibit. What should the mechanical engineer do with the original selection to resolve the issue?

Confine the selected elements to the internal surface area of the hole for Erase and Fill
Use the Plane Cut tool to split the currently selected elements and fill them individually
Expand the selection to include the contour of the surrounding geometry for Erase and Fill
Use the Separate tool on the currently selected elements and delete the separated mesh

Error: Select 2 answers

26. Refer to exhibit.

A mechanical engineer is setting up a Generative Design study for the mounting portion of a linkage mechanism shown in the exhibit.

The mounting bracket will be welded to an I Beam upon final assembly and galvanized post-welding.

The selected edges in the exhibit indicate where a full penetration weld bead will be applied.

Which structural constraint should be used?

Fixed constraint on the 3 selected edges.
Remote constraint on the bottom face.
Frictionless constraint on the 3 selected edges.
Fixed constraint on the bottom face.

Error: Select 2 answers

27. A mechanical engineer is looking to optimize an arm on a drone chassis for mass reduction using a Generative Design study. A key design feature for the drone is its modularity, which enables the pilot to swap out all the arms for various flight requirements. Each arm will have the same interface with the drone chassis, but the size and length of the arm will vary across configurations. Each configuration will have 12 load cases defined with vector components. The mechanical engineer will be cloning the Generative Model with the initially defined study across configurations and slightly altering the preserve geometry and the load case magnitudes.How can the mechanical engineer simplify the process of defining the load cases for the first configuration?

Clone the Generative Model for each load case within the study.
Create a new study for each load case of the flight requirements.
Create a new Generative Model for each load case within a study.
Clone the load case for each flight requirement within a study.

Error: Select 2 answers

28. A mechanical engineer is configuring a Generative Design study for part consolidation of several independent components in a large assembly for use as inspiration for a final design.

There are currently no existing designs that unify these components.

All obstacle components were replaced with primitive geometry in the Edit Model toolset.

Which of the following adjustments can be made to the configuration of the study to improve the accuracy of the outcomes?

Define a Starting Shape in the Generative Model.
Increase the Synthesis Resolution of the study.
Define Point Masses instead of Structural Loads.
Reduce the Synthesis Resolution of the study.

Error: Select 2 answers

29. A company that produces widgets is looking to improve their products' performance, while reducing the cost to manufacture each widget. The company has also been experiencing some negative feedback from customers regarding product safety and breakage during normal use.Which three statements best demonstrate how Generative Design could be used to update and improve the company's existing designs? (Choose three.)

Select 3 answers below.

Reduce manufacturing and assembly labor costs by consolidating multiple components.
Cut warranty replacement costs by ensuring designs meet a desired safety factor.
Accelerate machining setup and programming times by outputting NC code for each outcome.
Help lighten components by highlighting where to remove additional material in existing designs.
Save engineering time by recommending the best materials for each design.

Error: Select 3 answers

30. A mechanical engineer is working on a modular serial manipulator arm for an automated package retrieval system that a client has requested. The system must be able to interface with 4 package types that vary in shape and weight. The primary drivetrain chassis will remain the same across configurations of the arm, requiring a modular attachment functionality with the arm.

Each arm configuration must have the same interface with the chassis, but the package retrieval connection will change significantly between the configurations, each of which must support a different set of load cases.

The mechanical engineer has already prepared a Generative Design study for one configuration of the arm.

How should the mechanical engineer prepare a study for each of the remaining configurations?

Clone solved study and modify the load parameters for each configuration.
Clone original load case and modify the load parameters for each configuration.
Clone completed Generative Model and create a new study for each configuration.
Clone completed Generative Model with the original study for each configuration.

Error: Select 3 answers

31. Refer to exhibits.

A mechanical engineer is preparing a stabilizer component for a generative design study. The stabilizer component will be affixed to a flat plate via the bolt depicted in Exhibit 1.The mechanical engineer would like to create an obstacle geometry for this bolt using the Connector Obstacle tool in the Edit Model toolset. The bolt will need to be installed with a standard M3 hex driver. The fixed plate will have an M3 hex nut flush with the surface of the plate for fixturing the stabilizer. The start of the shaft for the Connector Obstacle is set to be at the base of the counterbore as seen in the section view of Exhibit 1.Which of the following Connector Obstacle configurations from Exhibit 2 will yield an accurate geometry for the mechanical engineer to use in the study?

Configuration B
Configuration D
Configuration A
Configuration C

Error: Select 3 answers

32. Refer to exhibit.

When modifying a freeform shape, a mechanical engineer deletes a face of the form, opening up a hole in the model as shown in the exhibit. Which three methods can be used to close this hole and return the model to a watertight freeform shape again? (Choose three.)

Select 3 answers below.

Merge Edge
Fill hole
Weld Vertices
Uncrease
Insert Edge

Error: Select 3 answers

33. A mechanical engineer wants to utilize Generative Design in Fusion 360 to create the lightest part possible.The design will see 2,250N (505lbf) during normal use and must be able to withstand a max load of 5,625N (1,265lbf).Currently, the part has a mass of 1,800 grams (64oz). The company wants to drop the weight by approximately 1/3 of the current mass.Which option will be the most-likely to meet their objective?

Minimize Mass with a Safety Factor of 2.5
Maximize Stiffness with a Safety Factor of 3.0 and Mass Target of 600g (32oz)
Minimize Mass with a Safety Factor of 3.0
Maximize Stiffness with a Safety Factor of 2.5 and Mass Target of 1,200g (42.5oz)

Error: Select 3 answers

34. Refer to exhibit.

A mechanical engineer begins preparing a Generative Design study on a new reciprocating saw design.

The mechanical engineer wants to redesign the Blade Guard, keeping its main shape intact. The mechanical engineer also wants consolidate a few parts by integrating the cylindrical Post component into the new Blade Guard. The Post is clamped into the injection-molded Saw Housing containing the rest of the internal components.

Which three components should the mechanical engineer replace with obstacles when setting up this study? (Choose three.)

Select 3 answers below.

Saw Blade
Blade Holder
Blade Guard
Connecting Pin
Saw Housing

Error: Select 3 answers

35. Refer to exhibit.

An imported mesh body is extremely-detailed, affecting performance. The mechanical engineer manipulating the design decides to use the Remesh tool as shown in the exhibit to reduce the triangle face count on the model. Which setting should be used to make sure the model's details are crisp and not affected as the mesh size increases and triangle count decreases?

Uniform mesh type
Reduce shape preservation
Preserve sharp edges
Increase mesh density

Error: Select 3 answers

36. Refer to exhibits.

A mechanical engineer is setting up a generative design study for a piece of machinery that includes a linkage which rotates 300 degrees during use as shown in the exhibits.The mechanical engineer has an assembly setup with a simplified version of the new component which will act as a stop for the linkage and also be used as a starting shape. The mechanical engineer also needs to develop obstacles for the rotating linkage system.Why has the mechanical engineer decided to model the obstacle geometry in the design workspace rather than using Edit Model?

The mechanical engineer needs to capture the obstacle data in the design history for manufacturing.
The design workspace is able to pre-select the geometry as an obstacle making the generative study easier to set up.
Edit Model does not use joints for motion so capturing rotation is easier to do in the design workspace.
Edit Model will remove the linkage since it will not be used for the study so no rotation data can be gathered.

Error: Select 3 answers

37. Refer to exhibit.

A mechanical engineer is setting up a Generative Design Study for a locating bracket for industrial machinery as shown in the exhibit.

The mechanical engineer has applied a bearing load to the large preserve cylinders to represent the maximum force applied on the design.

The mechanical engineer needs to positively locate the base of the machine at the six bolting locations before solving the study.

Which constraint should be applied and to which reference?

Apply a Pin Constraint to B.
Apply a Fixed Constraint to C.
Apply a Pin Constraint to D.
Apply a Fixed Constraint to A.

Error: Select 3 answers

38. Refer to exhibit.

A mechanical engineer has been tasked with designing an update for the mounting base shown in the exhibit for a 6-DoF robotic arm from an agricultural field rover. The rover is battery-powered, with current prototypes having a limited runtime due to onboard equipment.The interface between the arm and the robot chassis is currently a subassembly of parts that needs to integrate cable management for several sensors and an additional motor. A comprehensive analysis of the heat distribution and power consumption from the onboard microcontroller and data acquisition unit are also needed.The researchers have access to extensive fabrication capabilities including additive and subtractive manufacturing methods. Which aspects of this design problem are suitable candidates for a generative design workflow?

Manufacturable design, sensor acquisition latency, expected battery runtime
Mass reduction, manufacturable design, part consolidation
Symmetric design output, manufacturing process simulation, cloud data management
Mass reduction, thermal load analysis, power consumption breakdown

Error: Select 3 answers

39. Refer to exhibit.

A mechanical engineer is reviewing outcomes from a Generative Design study that was setup using the minimize mass objective.

The mechanical engineer has identified a single outcome to use but noticed the status is listed as Completed.

The max bearing load applied to the design was 500lbf and the design needs to perform without failure under a 1,050lbf.

Why has this outcome failed to converge?

The max stress is too large for the material.
The factor of safety is larger than 2.
The mass is too low for the target objective.
The global displacement is larger than 0.1mm

Error: Select 3 answers

40. Refer to exhibit.

A mechanical engineer is setting up a Generative Design study for a bicycle crank arm as shown in the exhibit.

The design must take into consideration a 500lb force from the rider on the pedal after a hard landing.

Which single structural load type will best represent the rider forces on the pedal translated to the crank arm?

Moment.
Remote force.
Bearing load.
Pressure.

Error: Select 3 answers

41. A mechanical engineer creates a set of surface bodies in a Generative Model to be utilized as Preserve Geometry, but is unable to select the objects.

Why is the mechanical engineer unable to select the surface bodies?

Only solid bodies can be selected as Preserve Geometry.
Surface bodies must be flat to be chosen as Preserve Geometry.
The selection must be clear before choosing surface bodies.
The surface body must be a component before it can be selected.

Error: Select 3 answers

42. Refer to exhibit.

During preparation for a Generative Design Study, a mechanical engineer decides to simplify portions of the model by replacing some of the objects with primitive shapes. Each component in the design contains a single body. When using the Replace with Primitives command, the mechanical engineer discovers that they cannot select more than one object in the model to replace with a primitive shape. Which setting in the exhibit should the mechanical engineer change to allow selecting more than one object?

Change Shape Direction to Z-axis
Adjust length and radius to encompass more parts
Change Primitive Shape to Box
Change Object type to Components

Error: Select 3 answers

43. Refer to exhibit.

A mechanical engineer would like to define a single joint to control the rotation and translation of the adjustable stand component within the bounds of the slot feature on the base.Which of the following As-Built Joint configurations should be defined to achieve the desired motion?

Apply a Cylindrical joint with a custom axis selection that is parallel to the Y-axis
Apply a Ball joint with Pitch about the Y-axis and Yaw about the Z-axis
Apply a Planar joint with Normal set to Z-axis and Slide along the Y-axis
Apply a Pin-Slot joint with rotation about the X-axis and translation in the Y-axis

Error: Select 3 answers

44. Refer to exhibit.

A mechanical engineer is making manipulations to the quadball form as shown in the exhibit.What information can be gathered from the image about what is being done?

Edit form selection is being used with the select next option.
Soft modification is being used with the distance face count extent.
Soft modification is being used with the rectangular face count extent.
Edit form selection is being used with the vertex selection mode.

Error: Select 3 answers

Error: 44/44 questions unanswered

44/44 questions unanswered