Create a 3D CAD model of the drawing above as well as a 2D drawing.
Using the drawing, verify that all dimensions and shapes of your drawing match the original drawing.
Use ANSI B Inch as the template for the drawing
Dimensions must be on the same views as the sample drawing
Recommended Steps to create model
Below is a list or recommended steps to create the Brophy Chapel Tower Stand. This a recommended order to create the tower, though not required. Review tutorials for further details how to perform each step.
Tower Body (Extrude and Chamfer)
Create sketch on Top Plane
"View Normal to Sketch Plane"
Draw a center point rectangle on the origin. (To make all sides the same length hold down the OPTION key)
Set length of sides to appropriate size.
Make sure all lines are black to fully constrain.
Close the sketch
Blind ExtrudeNew to proper height above the Top Plane.
Equal Distance Chamfer the four edges that are perpendicular to the Top Plane
Tower Dome and Spire (Revolve)
Create a sketch on the Front Plane (You will be creating 1/2 of the Dome/Spire cross-section)
"View Normal to Sketch Plane"
Make sure top plane is horizontal and the right plane is vertical
Utilizing the Use command, create a line on the top of the body
Draw a Corner Rectangle (Rectangle to create 1/2 of the cylinder)
Select the corners of the rectangle at the following points
The mid point of the line on the top of the body created above with the Use command
A point of your choice that is above the body to the left of the right plane that is approximately the height and width of the cylinder.
Do not constrain to any other points of the part or sketch.
Set the height of the rectangle to the proper height above the body.
Do not set the width.
Three of the four lines of the rectangle on this sketch should be black
Draw a Center Point Arc (You will be creating 1/4 circle used to create 1/2 of the dome cross-section)
Set the Center Point as the Upper Right Corner of the rectangle drawn earlier in this sketch.
Set the the Starting Point as the Upper Left Corner of the rectangle.
Set the End Point on the right plane above the rectangle.
Enter the correct size for the arc and press return.
The arc and all of the lines of the rectangle should turn black.
Draw a Line connecting the top of the arc to the rectangle.
The inside of the arc should turn gray.
There should be no blue lines on the sketch.
Draw a Corner Rectangle (You will be creating 1/2 of the Spire cross-section)
Select the corners of the rectangle at the following points
Apoint of your choice on the arc approximately where the spire intersects the dome.
A point of your choice on the Right Plane at the approximate height of the spire.
Set the Width of the rectangle to 1/2 the Spire diameter (enter .33/2, Onshape will perform the calculation)
Use the Dimension tool to set the height above the Tower Body
Utilize the Trim tool to remove the small section of the arc that in contained inside the spire rectangle.
Close the sketch
Revolve Add using the sketch just made to create a solid 3D dome and Spire.
Create Cross (Extrude and Mirror)
Create a sketch on the Front Plane (You will be creating the left half of the Cross)
"View Normal to Sketch Plane"
Make sure top plane is horizontal and the right plane is vertical
Utilizing the Use command, create a line on the top of the Spire
Draw a Corner Rectangle (Rectangle to create 1/2 the spire of the cross)
Select the corners of the rectangle at the following points
The mid point of the line on the top of the Spire created above with the Use command
A random location of your choice that is above the Spire to the left of the right plane.
Do not constrain to any other points of the part or sketch.
Set the height of the rectangle to the proper height.
Set the width of the rectangle to 1/2 the full width.
All four lines of the rectangle on this sketch should be black.
Draw a Corner Rectangle (Rectangle to create the left cross arm)
Select the corners of the rectangle at the following points
A point of your choice on the left line of the rectangle at the approximate location of the top of the cross arm.
A point of your choice at the approximate location of the bottom left corner of the cross arm.
Do not constrain to any other points of the part or sketch.
Set the height of the rectangle to the proper height.
Set the width of the rectangle to 1/2 the full width.
Set the distance of the cross arm from the top of the cross.
All on this sketch should be black.
Symmetrically Extrude Add to the proper width using the sketch just created.
Feature Mirror the Extrusion.
Windows (Extrude and Circular Pattern)
Create a sketch on the face of the tower body parallel to the Front Plane
"View Normal to Sketch Plane"
Make sure top plane is horizontal and the right plane is vertical
Draw a Corner Rectangle (Rectangle to create one Window)
Select the corners of the rectangle at the following points
A point of your choice at the approximate location of the Bottom Right Corner of the left window.
A point of your choice at the approximate location of the Top Left corner of the left window.
Do not constrain to any other points of the part or sketch.
Set the height of the rectangle to the proper height.
Do not set the width of the widow
Set the location of the bottom of window from the Bottom of the Body
The bottom and top lines of the rectangle should be black
Set the location of the Right side of the window from the Right Plane.
The right line of the rectangle should turn black.
Draw a Center Point Arc (You will be creating the arch of the window)
Set the Center Point at the midpoint of the top of rectangle drawn earlier in this sketch.
Set the the Starting Point as the Upper Left Corner of the rectangle.
Set the End Point on the Upper Left Corner of the rectangle.
Enter the correct size for the arc and press return.
The arc and all of the lines of the rectangle should turn black.
Through-all ExtrudeRemove using the sketch just created to create a 3D window
Feature Circular Pattern the Extrude using the cylinder of the dome as the axis
Legs (Sweep and Circular Pattern)
Create a 3 point plane by selecting 3 chamfer mid-points
When viewing the front view, Use the top and bottom midpoints on right chamfer and one midpoint on the chamfer that is parallel on the opposite side of the tower.
Create a sketch on the right chamfer when viewing from the front
"View Normal to Sketch Plane"
Draw a Corner Rectangle (Rectangle to create the shape of the leg)
Select the corners of the rectangle at the following points
A point on the lower left corner of the chamfer.
A point of your choice on the line of the right side of the chamfer
Do not constrain to any other points of the part or sketch.
Set the height of the rectangle to the proper height.
All lines should be black.
Create a sketch on the plane created earlier when viewing from the front
"View Normal to Sketch Plane"
Utilizing the Use command, create a point on the lower right corner of the Tower Body.
Draw a Corner Rectangle using Construction Lines (Set point and lines to create orientate a spline)
Select the corners of the rectangle at the following points
The point created above at the lower right Corner of the body
A point of your choice which is below and to the right of the Tower Body
Do not constrain to any other points of the part or sketch.
Set the height and width of the rectangle to match the location of the bottom point of the leg
Draw a Spline (Not a construction line) from the Upper Left to the Lower right corners of the rectangle.
Move the upper left handle point to the midpoint of the top horizontal line of the rectangle.
Move the lower right handle point to the midpoint of the right vertical line of the rectangle.
All lines on the sketch should be black.
Sweep Add using the rectangle drawn on the chamfer and the spline to create a 3D leg.
Add a Fillet of the appropriate size at the top of the leg where it intersects the Chamfer
Feature Circular Pattern the Sweep and Fillet using the cylinder of the dome as the axis.
The Model should be complete.
Recommended Steps to create Drawing
Creating Drawing Views
Create the bottom view first (Upper left)
Use projection views to create the side and top views
If the side view does not show the Cross Arms as shown
Delete the side view,
Right click on the bottom view and select "View Properties"
Change Rotation Angle to 90 degrees
To create the auxiliary view (Angled view in lower left to show leg dimensions)
Select the Auxiliary button
Left Click on the Line at the end of the lower right leg
drag down and right to temporarily place the view
Right click on the Auxiliary View and select "Suppress Alignment with Parent"
Move view to desired location
Manually draw lines to show Auxillary of view
To create the Isometric View (Small View on lower right)
Select Insert View
Select Isometric
Locate View
Right click on the Isometric view and select "View Properties"
Use the Pull down menu to select 1:3
Dimensioning the Drawing
Add Dimensions to Drawing
Try to use line to line dimensions whenever possible.