Siemens NX

Model a stepped spur pinion shaft with integral gear and wrench flats

Software: Siemens NX
Platform: Windows
Length: 1 h 34 min
Resolution: 1920 × 1080
Output: PRT, STP

Samples play on a computer

94min

2Kclicks

613keys

Windows

Task

Model a stepped spur pinion shaft in millimetres as a single solid body, and produce its detail drawing. Use the supplied dimensioned diagrams diagram_01.png, diagram_01_detail01.png, diagram_01_detail02.png, diagram_01_detail03.png and diagram_01_detail04.png as the design reference.

The part is a turned shaft on one straight axis. Its overall length is 100 mm and its envelope diameter is 40 mm, which is set by the gear tip circle. Working from the left end, the shaft has:

a short plain journal
a larger collar
an integral spur gear with 20 teeth and a 40 mm outside diameter
a second larger collar
a long reduced shank

Apply the features shown on the sheets:

Blend concave fillets between the gear faces and the adjacent collars.
Round the tooth tip edges.
Mill a pair of opposed wrench flats into the right-hand end of the shank.
Chamfer or round the end.
Drill a small centre hole on the axis in the right-hand end face.

The end view dimensions an R11.5 (Ø23) circular feature. The model must match this value. Take step lengths and the remaining diameters from the supplied diagrams, keeping the proportions shown.

Save the part as Stepped_Gear_Shaft.prt. It shall contain one solid body with no extra bodies or sheet geometry.

Create a drawing file, Stepped_Gear_Shaft_dwg1.prt, that references the part. It shall be on one A3 sheet at 1:1 scale in third angle projection, with a side view, an end view and an isometric view.

Show these dimensions:

the 40 overall diameter
the 100 overall length
the Ø23 (R11.5) circle on the end view

Fill in the title block with a title, a drawing number, the sheet size and the scale, and state that dimensions are in millimetres.

ReferenceSheet 1

Loading the drawing

Rubrics16

R1
The model shall have an overall length of 100 mm along the shaft axis.
R2
The model shall have a maximum diameter of 40 mm at the gear teeth tips.
R3
The model shall include an integral spur gear with 20 teeth.
R4
The model shall include a stepped shaft with a collar on each side of the gear and a reduced-diameter journal at the left end.
R5
The model shall include a pair of opposed wrench flats at the right-hand end of the shank.
R6
The model shall include an axial centre hole in the right-hand end face.
R7
The model shall include concave fillets blending the gear faces into the adjacent collars.
R8
The model shall include an R11.5 (Ø23) circular feature.
R9
The drawing shall contain a side view, an end view and an isometric view of the shaft.
R10
The drawing shall dimension the 100 overall length and the 40 overall diameter.
R11
The drawing shall dimension the Ø23 (R11.5) circle on the end view.
R12
The drawing shall have a title block with a title, a drawing number, size A3 and scale 1:1, and state that dimensions are in millimetres.
R13
The drawing shall indicate third angle projection.
R14
The model shall be saved as Stepped_Gear_Shaft.prt containing exactly one solid body.
R15
The drawing shall be saved as Stepped_Gear_Shaft_dwg1.prt referencing the shaft part.
R16
The model shall use millimetres as its units.

Gold outputStepped_Gear_ShaftPRT, STP

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Events11,402

00:00.000AppNX 12

00:00.637Move237, 170 → 546, 327

00:00.783Move562, 333 → 1117, 814

00:02.315Click1117, 814

00:02.415Move1117, 813 → 1118, 811

00:02.446Move1118, 810 → 1006, 782

00:02.987Move1007, 782 → 977, 356

00:03.735Click977, 356

00:03.961Move977, 356 → 1207, 630

00:04.969Click1207, 630

00:05.166ClickDouble click 1208, 630

00:05.237Move1209, 630 → 1192, 285

00:08.035Move1192, 285 → 1141, 478

00:10.037Click1141, 478

00:10.361ClickDouble click 1141, 478

00:10.759Move1142, 478 → 1869, 951

00:11.695Click1869, 951

00:11.805Move1866, 951 → 1265, 962

00:12.903Click1265, 962

00:13.025Move1264, 962 → 1258, 911

00:13.715Move1258, 910 → 1258, 904

00:13.808Move1258, 903 → 1315, 795

00:14.162Move1316, 794 → 1315, 767

00:18.399Move1315, 765 → 63, 180

00:20.135Click63, 180

00:20.293Move63, 180 → 97, 431

00:21.307Click97, 431

00:21.641Move98, 431 → 223, 443

00:22.127Click223, 443

00:22.701Move222, 442 → 253, 257

00:23.573Click253, 257

00:23.705Move253, 257 → 348, 113

00:24.193Click348, 113

00:24.299Move349, 112 → 359, 185

00:24.795Click359, 185

00:24.935Move359, 184 → 335, 50

00:25.465Click335, 50

00:25.629Move335, 50 → 300, 224

00:26.598Click300, 224

00:26.763Move301, 224 → 302, 600

Loading events

Narration626

00:00
Opened NX 12's New dialog, kept the Model template selected, and opened the directory chooser. Browsed the NEW folder and selected the Stepped Gear Shaft directory.
Set the save location for a new NX model.
00:11
Confirmed the selected Stepped Gear Shaft directory, accepted the New dialog, and opened the model in NX 12 Modeling.
Create the new model in the chosen directory.
00:22
Opened Sketch Preferences and reviewed settings across the Sketch Settings and Session Settings tabs.
Review or configure sketch preferences before creating geometry.
00:28
Started Create Sketch, kept the On Plane sketch type, and proceeded to specify the sketch coordinate system.
Begin a sketch on a selected modeling plane.
00:35
Selected a sketch plane and entered the Profile sketch tool, then positioned the sketch view while preparing to create geometry.
Set up the sketch plane and profile-creation workflow.
00:48
Activated the Circle tool, positioned the circle center, and entered a diameter of 15.
Create a 15-unit circle in the active sketch.
00:59
Switched to NX Modeling, opened the Extrude dialog, selected the sketch curve, and began configuring the extrusion with start and end distance fields visible.
Create an extrusion from the selected sketch curve.
01:04
Waited while the Extrude dialog remained open; the selected arc and cylindrical preview were displayed without further recorded interaction.
Review the extrusion preview and parameters.
01:24
Clicked within the Extrude dialog and scrolled while reviewing the selected curve, direction, and cylindrical preview.
Inspect or adjust extrusion settings.
01:38
Dragged in the modeling view, changing the extrusion preview end distance from approximately 58.5 mm to 53 mm, then returned focus to the Extrude dialog.
Adjust the extrusion extent interactively.
01:45
Entered arithmetic expressions into the extrusion distance controls, first typing 15+13+ and then 14 followed by Enter, and interacted with the Start and End controls.
Set or calculate extrusion distance values.
02:04
Dragged the Start distance control in the modeling view, reducing the displayed Start value from 40 mm to 33 mm, and clicked back in the Extrude dialog.
Adjust the extrusion start offset.
02:09
Switched to NX Modeling and rotated the cylindrical model with a middle-button drag, then clicked toolbar controls and opened a measurement command.
Manipulate the model view and begin a measurement operation.
02:16
Opened Simple Distance, rotated the model, selected a start point and an end point, and displayed a 9.0000 mm distance preview.
Measure the distance between two selected model locations.
02:22
Returned to NX Modeling, rotated the view, opened Extrude, selected section geometry, and displayed an extrusion preview with a 33 mm start distance and a 15+13+14 mm end expression.
Configure an extrusion feature from the model section.
02:26
Adjusted the Extrude preview by rotating the model and changing the Start distance field from 33 to 31 mm.
Refine the extrusion distance before confirming the feature.
02:31
Switched to Simple Distance, rotated the cylindrical model, and left the measurement dialog waiting for both a start point and an end point.
Set up another distance measurement.
02:37
Selected a start point and an end point in Simple Distance, briefly switched through the modeling window, and displayed an 11.0000 mm measurement on the highlighted cylinder.
Measure the distance between two points on the cylindrical feature.
02:57
Scrolled and repositioned the NX window, then switched focus back to NX Modeling while the Simple Distance tool remained open with a selected face and an 11.0000 mm measurement.
Review the current distance measurement and return to the modeling workspace.
03:05
Selected the Extrude feature, then opened the Extrude dialog and displayed its section, direction, and limit settings with a preview extending from the cylindrical body.
Inspect or modify the Extrude feature parameters.
03:10
Dragged the on-screen Extrude controls to adjust the preview direction and start limit, changing the visible start value from 31 to 29 mm, then returned focus to the modeling window.
Tune the extrusion preview limits.
03:15
Opened Simple Distance and rotated the cylindrical model using middle-button drags; selected one object and left the end-point selection pending while the measurement ruler appeared on the model.
Prepare a distance measurement between two model references.
03:20
Returned to Simple Distance, completed the second object selection, and displayed a 13.0000 mm measurement; then exited the measurement view and adjusted the model view with scrolling and middle-button rotation.
Measure the distance between selected model references and review the result.
03:30
Continued rotating the cylindrical model with middle-button drags and left the NX modeling workspace showing the cylinder in an angled view.
Inspect the modeled cylinder from another viewpoint.
03:36
Scrolled in the NX Modeling workspace and clicked near the upper-right area while viewing the cylindrical solid.
Navigate the modeling workspace.
03:51
Opened Create Sketch, accepted the sketch setup, and entered Profile mode on the cylindrical part; the sketch view showed the circular face and axes.
Create a new sketch on the part.
03:55
Selected the Circle tool and positioned the cursor at the sketch origin to begin creating a circle.
Create a circular sketch profile.
04:00
Used QuickPick to select an existing point at the sketch origin, then entered 23 and confirmed it; a large circle appeared around the cylindrical face.
Define the circle from the sketch origin with a specified size.
04:07
Exited the sketch and returned to Modeling, leaving the new circular sketch visible beside the cylindrical solid; then opened the Extrude command.
Prepare the circular sketch for extrusion.
04:16
Configured Extrude with the circular sketch selected, a start distance of 33 mm, and an end distance of 42 mm; rotated the view to inspect the extrusion preview.
Preview an extrusion from the circular sketch.
04:21
Adjusted the active Extrude preview by dragging in the modeling view, right-clicking, and scrolling while the dialog remained open.
Refine the extrusion preview and geometry selection.
04:28
Selected and dragged extrusion controls in the modeling view, changing the end-distance entry to an expression beginning with 15+14 and then adjusting the start control.
Set extrusion limits for the feature.
04:44
Dragged the extrusion end control repeatedly in the modeling view, leaving the End value at 25 mm.
Adjust the extrusion depth.
04:55
Clicked the Extrude dialog confirmation control, then rotated or navigated the model with middle-button dragging and scrolling.
Complete the extrusion and inspect the resulting model.
05:00
Opened the Analysis tools, selected Simple Distance, and navigated the 3D view while the measurement command was activated.
Begin measuring a distance on the modeled part.
05:05
Selected a start point or object and then an end point or object for Simple Distance, producing a displayed measurement of 8.0000 mm.
Measure the distance between two selected model locations.
05:11
Rotated the cylindrical model, opened the Extrude command, and adjusted the end distance field from 25 mm while previewing the extrusion.
Modify the extrusion extent.
05:16
Dragged the Extrude end-distance control to reduce the previewed value to approximately 21.5 mm.
Tune the extrusion length using the on-model control.
05:22
Closed the Extrude interaction, opened Simple Distance, and rotated the model while the measurement tool awaited a start point.
Begin measuring a distance on the model.
05:26
Selected a start point and an end point on the cylindrical model, displaying a 12.0000 mm distance measurement.
Measure the distance between two model points.
05:30
Returned to Extrude and adjusted the end-distance control from 21 mm to 19 mm while rotating the model and previewing the result.
Further refine the extrusion length.
05:35
Exited the Extrude interaction, reopened Simple Distance, and rotated the model until the tool reset to empty Start Point and End Point selections.
Restart a distance measurement on the model.
05:41
Selected a start point and an end point in the Simple Distance tool, displaying a measured distance of 14.0000 mm between faces on the cylindrical model.
Measure the distance between two model faces.
05:45
Exited the distance measurement and opened the Unite command, then selected the target body so the smaller cylindrical body was highlighted red.
Prepare to unite the cylindrical bodies.
05:50
Completed the Unite operation, adding a Unite feature to the model history and leaving the two cylindrical sections as one combined solid.
Combine the cylindrical bodies into a single solid.
05:54
Remained idle while viewing the completed combined cylindrical model in NX 12.
Review the resulting solid.
06:14
Viewed the combined model, zoomed out, and opened the Sketch environment to begin creating a new sketch.
Start a new sketch on the model.
06:30
Opened Create Sketch, specified the sketch coordinate system, then selected the Circle tool and began positioning a circle center on the model face.
Create a sketch and begin drawing a circle.
06:34
Entered 40 in the circle diameter field and repositioned the NX window, leaving the sketch circle active.
Set the sketch circle diameter.
06:39
Exited Sketch into Modeling, opened the Extrude command, selected the circular sketch geometry, and rotated the model view while previewing the extrusion.
Create an extrusion from the circular sketch.

06:45
Rotated the extrusion preview, selected the Start distance field, and entered 15.
Adjust the extrusion start distance.
06:51
Waited while reviewing the Extrude preview with Start set to 15 mm and End set to 25 mm.
Review the extrusion configuration before applying it.
07:11
Adjusted the Extrude dialog and preview, leaving the Start distance at 15 mm while inspecting the result.
Refine or verify the extrusion preview.
07:18
Dragged in the modeling viewport to rotate the preview and changed the Start distance to 10 mm.
Adjust the extrusion start distance and inspect the preview.
07:23
Switched to NX Modeling and dragged with the middle mouse button to rotate the stepped cylindrical model, then clicked within the graphics area.
Inspect the 3D model from different viewing angles.
07:38
Opened Simple Distance, selected a start point or object and an end point or object, and displayed the measured result on the model.
Measure distance between selected model geometry.
07:43
Continued using Simple Distance, selected another model face or object, and displayed a distance measurement across the stepped part.
Measure spacing between model features.
07:48
Opened Unite, selected a target body and a tool body, and previewed the resulting body selection in the graphics area.
Prepare a Boolean unite operation on the model bodies.
07:53
Rotated the model view with a middle-button drag and then clicked in the graphics area while the Unite feature remained in the model history.
Inspect the united model geometry and its feature state.
07:59
Dragged with the middle mouse button for an extended period to rotate the united stepped cylindrical model, then clicked in the graphics area.
Review the completed solid from multiple orientations.
08:15
Adjusted the NX view and returned from the Extrude dialog to the modeling window, leaving the stepped cylindrical model visible.
Review the extruded model and exit the feature dialog.
08:28
Opened Simple Distance and rotated the model while positioning the start-point selection; the cylindrical assembly remained visible with a face highlighted.
Begin measuring a distance on the model.
08:38
Selected a start point/object and an end point/object in Simple Distance, rotated the model, and displayed a 45.0000 mm measurement.
Measure the distance between two model references.
08:44
Reopened the Extrude dialog and adjusted the end distance through the on-screen control, changing the preview from about -12 mm to -14 mm.
Modify the extrusion extent.
08:49
Edited the Extrude settings, left the Boolean option as None, and returned to the modeling view with the stepped cylindrical solid visible.
Finalize the extrusion adjustment and inspect the result.
08:55
Opened Simple Distance, rotated the model, and selected a start point/object followed by an end point/object on the cylindrical assembly.
Restart a distance measurement using different model references.
08:59
Completed the distance measurement by selecting the indicated model face, then closed the Simple Distance dialog and returned to the modeling view.
Measure the distance between selected model geometry.
09:10
Rotated the cylindrical model extensively with middle-button dragging and adjusted the view to inspect it from another angle.
Inspect the model from different viewpoints.
09:21
Opened the Edge Blend dialog, entered a radius of 5 and then changed it to 3, previewed the blend on a selected circular edge, and rotated the previewed model.
Configure and preview an edge blend on the selected geometry.
09:37
Selected a second circular edge in the Edge Blend dialog, leaving two edges selected, then applied the feature and returned to the modeling view.
Apply the edge blend to both selected circular edges.
09:48
Rotated the completed model with middle-button dragging and left the updated rounded geometry visible for inspection.
Inspect the completed edge-blend result.
10:00
Waited in the NX 12 modeling view, then clicked the upper toolbar area twice and opened the NX 12 Sketch window.
Switch from modeling to sketching.
10:07
Opened the Create Sketch and Profile tools, selected a sketch plane or coordinate system, and entered the Profile command on the model end face.
Set up a new sketch profile on the part.
10:11
Selected the Circle command and positioned the circle center on the sketch face, leaving the circle tool active for radius input.
Begin creating a circular sketch profile.
10:24
Rotated the model view while working in the sketch, selected sketch geometry, and exited the sketch back to Modeling.
Complete or inspect the sketch before creating a solid feature.
10:32
Selected the Extrude command and selected the sketch curve, opening the Extrude dialog with direction and start/end distance controls and a preview.
Create an extruded feature from the sketch profile.
10:43
Adjusted the Extrude preview by dragging the on-model extent controls, changing the displayed start and end distances while keeping the feature dialog open.
Tune the extrusion lengths and preview the resulting feature.
10:58
Accepted the extrusion and returned to the Modeling workspace, then adjusted the view to inspect the resulting extended cylindrical feature.
Finalize the extruded feature and review the model.
11:11
Opened the Simple Distance measurement tool, selected a first point or object on the model, and rotated the 3D view while preparing to select the second point.
Set up a distance measurement between two model locations.
11:17
Rotated and zoomed the model through several views while keeping the Simple Distance tool active and waiting for the second point selection.
Position the model for accurate selection of the second measurement point.
11:22
Selected the second point or object on the model, producing a visible 95.0000 mm readout, then switched back to the modeling workspace and selected the extruded shaft feature.
Complete the distance measurement and return to model feature selection.
11:27
Opened the Extrude command, selected a curve or section, specified the extrusion direction, and adjusted the start and end distance controls while rotating the previewed cylindrical geometry.
Configure an extrusion feature on the model.
11:34
Closed or exited the Extrude dialog, returned to the modeling workspace, rotated the part, and selected the central cylindrical feature for inspection.
Review the model after configuring the extrusion.
11:38
Opened Simple Distance again, rotated and zoomed the model extensively, and selected a shaft end face as the current point or object while leaving the second-point selection pending.
Begin another distance measurement on the model.
11:48
Switched to the NX 12 Simple Distance tool, reviewed the selected start and end points on the cylindrical model, then returned to the NX 12 Modeling window.
Measure the distance between two model points.
11:56
Resized and repositioned the NX 12 window, then clicked in the modeling workspace while leaving the cylindrical part visible.
Adjust the NX 12 workspace and continue model review.
12:16
Reviewed the model, scrolled briefly, and repositioned the NX 12 window before switching to an untitled NX 12 window.
Navigate the NX 12 modeling workspace.
12:33
Entered Create Sketch, switched to the NX 12 Sketch window, and selected the sketch coordinate-system setup on the cylindrical face.
Create a sketch on the model.
12:39
Worked in the sketch environment, selected the Profile tool, and began positioning a profile point on the front circular face.
Create sketch geometry on the selected face.
12:55
Activated Circle, selected the circle center on the sketch face, and entered 40 as the diameter, leaving the circle preview and diameter constraint visible.
Create a 40-unit diameter circle in the sketch.
13:04
Switched to NX 12 Sketch, right-dragged in the sketch area, and scrolled briefly; the view remained on the fully constrained sketch.
Adjust the sketch view.
13:08
Scrolled several times to zoom the sketch view out, reducing the displayed circle around the origin.
Reframe the sketch for further editing.
13:24
Paused on the NX 12 sketch, then clicked the Circle tool on the ribbon.
Activate circle creation.
13:37
Opened the Circle command, positioned the circle center in the sketch, and entered 31 for the diameter before confirming.
Create a dimensioned circle.
13:44
Returned to the sketch view and reviewed the resulting concentric circles.
Verify the created circle geometry.
14:04
Remained idle while viewing the fully constrained sketch with two concentric circles.
Review the completed sketch.
14:24
Scrolled within the NX sketch view while leaving the fully constrained concentric-circle sketch visible.
Adjust the sketch view for inspection.
14:32
Scrolled to zoom the sketch view, enlarging the concentric circles and exposing the Arc4 dimension annotation.
Inspect the existing sketch geometry and dimensions.
14:46
Continued scrolling to zoom further into the circle geometry and its diameter annotation.
Refine the view for sketch editing.
15:00
Scrolled slightly within the NX sketch and then clicked the upper toolbar area twice.
Prepare or activate a sketch command.

Model a stepped spur pinion shaft in millimetres as a single solid body, and produce its detail drawing.

Create and refine a stepped gear shaft in Siemens NX, including sketches, extrusions, Boolean operations, patterns, blends, slots, and a hole; then assign properties and produce an annotated A3 drafting sheet with orthographic, isometric, section views, dimensions, title-block metadata, and layer/display settings.