Introduction to Revolve and Sweep in SolidWorks IAT 106 Spatial Thinking and Communicating Fall 2015

Course Outline by Week 1.The Nature of Spatial Thinking; Space, Objects and Operations 2.Sketching and Dimensioning 3.Multiview Projections 4.Pictorial Projections and SolidWorks 5.Perspective Projection and Model Making 6.Auxiliary Views, Cross-Sections and SolidWorks Assemblies 7.Midterm; 8.Making things move: Mechanisms; Four Bar Linkages 9.Project 4: AMT Intro; sketches for a project 10.Physical Modeling; Revolved and Swept Surfaces; First full set of sketches; Solidworks parts for AMT <<<<<< “You Are Here” 11.Solid modeling theory; AMT: final set of sketches; finish SW model of AMT; start physical model. 12.Constraints; materials; AMT: finish Physical model; Video & Report 13.Course Review; Exam Preparation; AMT: final finishing touches..

3IAT 106: Revolve and Sweep Week AMT Process Flow (Repeat of Lecture 9 Slide) 8 Prelab8: Form teams. Develop 2 preliminary ideas for an AMT: figure + mechanism; Lab 8: feedback on AMT ideas. Result: needed fixes/improvements for each team. HW: do COMPLETE set of drawings (figure, assembly, mechanism); This set of sketches is called “SK-1”. First DRAFT version due: start Lab 9 9 No formal lab: Remembrance Day Work on your own; get extra help from TAs via extended office hours. Prelab9: make sure Draft version of SK-1 is complete Lab9:1. Meet TA: review DRAFT SK1; 2. dimensioned multiview sketches of all parts; 3. SolidWorks models of each part; start working on assembly of SolidWorks model. HW: a) Complete final version of SK1: due start Lab10;. b) Complete dimensioned sketches and SolidWorks models of all AMT parts: due end Lab10 10Prelab10: make sure SK-1 & part sketches are complete & ready to hand in before Lab; Lab10: SK1 due. Finish SW parts; work on SW assembly. Ideally finish SolidWorks model. Initial discussion of Physical Model (e.g. who does what, materials). HW: submit final complete SolidWorks model by start of Lab11; 11Prelab11: Complete SolidWorks assembly of AMT; work on Physical model Lab11: Submit complete SolidWorks model; work on Physical model. HW: Finish Physical model, it is due at start of Lab 12 for DEMO. 12Prelab12: Complete Physical model; Lab12: Demo Physical model ; work on Video & Report (both due at start of Lecture 13). HW: Complete video and report, and submit by start of Week 13.

4IAT 106: Revolve and Sweep What’s a complete set of sketches? Complete enough so someone else could build it! Separate sets of sketches for –Entire assembly –Figure –Box and mechanism For each set: At least 1 pictorial (iso, cut-away iso, Xsection) –Annotate to show/explain motion, connections, joints Add orthographic and/or Multiviews (Front/top/right) as needed Make a copy to work from and submit Originals Make sure to staple all sketches together

5IAT 106: Revolve and Sweep Notes on sketch requirements The approach is deliberately iterative: Start: pSK –-feedback --> SK1_draft –-fb--> SK1_final You need to do a multiview (T/F/R) for each part. Do enough sketches to fully communicate your design … but NO MORE than that. Do the MINIMUM needed to fully communicate … You will be pressed for time in Lab10: come in fully prepared, with SK1 completely finished.

6IAT 106: Revolve and Sweep Goals Learn Revolve and Sweep Functions Rapid modeling of existing objects

7IAT 106: Revolve and Sweep Revolve Revolve feature: rotate a 2D profile sketch around a centerline. profile sketch must be a closed shape profile sketch must contain the centerline. profile sketch cannot cross centerline.

8IAT 106: Revolve and Sweep Revolve: Axis position Good Not Good cannot cross centerline

9IAT 106: Revolve and Sweep Revolve: Property Manager

10IAT 106: Revolve and Sweep Revolve: Rotation Angle (360º)

11IAT 106: Revolve and Sweep Revolve: Rotation Angle (180º)

12IAT 106: Revolve and Sweep Revolve: Other options Revolved Boss/Base on the Features toolbar Revolved Cut on the Features toolbar

13IAT 106: Revolve and Sweep Sweep A Sweep feature is created by –tracing a 2D sketch, called a “profile sketch” –along a path (defined in another sketch). profile sketch must be a closed shape profile sketch cannot overlap with itself.

14IAT 106: Revolve and Sweep Sweep: Elements Select or create Profile (shape to be moved) Select or create Path (path along which Profile moves) Optional: Select Orientation/Twist

15IAT 106: Revolve and Sweep Sweep: Orientation/Twist Options Follow-the PathKeep Normal ConstantTwist-Along Path

16IAT 106: Revolve and Sweep Sweep

17IAT 106: Revolve and Sweep Sweep: Property Manager

18IAT 106: Revolve and Sweep Sweep: Other options Swept Boss/Base on Features toolbar (or insert/Boss/Sweep) Swept Cut on Features toolbar Lofted Boss/Base on Features toolbar

19IAT 106: Revolve and Sweep Lofting Lofts: like a generalized sweep Define a set of sequential cross- sections Blend the cross-sections together Process: Define set of planes Create sketch of cross section in each plane Define corresponding point in each sketch Loft

20IAT 106: Revolve and Sweep Tutorial 2: Set 2 – Revolve and Sweep

21IAT 106: Revolve and Sweep Tips for Modeling Your Objects - I Plan sketch features, identify applied features Use the correct kind of features for the shape being modeled and the design information available Use more features with simpler sketches over fewer features with complex sketches Group similar features together, where appropriate (eg. Fillets, chamfers, holes)

22IAT 106: Revolve and Sweep Tips for Modeling Your Objects - II Do not use a sweep feature when a revolve or extrude will work. Sweeping a circle along a circular path appears to give the same result as a revolve feature. However, the revolve feature: –Is mathematically less complex –Is easier to sketch – one sketch vs. two Revolve Sweep