SCHOOL OF MECHANICAL AND BUILDING SCIENCESM-Tech [MANUFACTURING ENGINEERNG] Fall Semester 2014 – 2015 COMPUTER GRAPHICS AND GEOMETRIC MODELLING LABORATORY Name Register No. MAVALLAPALLI SARASCHANDRA 14MMF0011 Tech. MAVALLAPALLI SARASCHANDRA of M. (MANUFACTURING ENGINEERNG) during the year 2014 –15. EXAMINER SIGNATURE .COMPUTER GRAPHICS AND GEOMETRIC MODELLING LABORATORY Certified that this as a bonafide record of work done by Mr. University Registration No: Date: 14MMF0011 STAFF-IN-CHARGE Submitted for the Term End Practical Examination held on ________________. 21-07-2014 3. Hole Wizard Exercise on Ribs.Index S.NO DATE DESCRIPTION 1.Sweep. Revolve Cut.Extrude cut. 18-08-2014 7. 03-11-2014 Exercises on Assembly of Radial engine Exercise on Assembly of Plummer Block Exercise on Assembly of Tail stock SIGNATURE . Chamfering and mirroring 10 22-09-2014 Exercise on Assembly of Screw Jack MARKS Introduction to 3D-Modelling Softwares SolidWorks as a Modelling package Exercise on sketcher module Exercise on Extrude. 01-09-2014 8.Sweep Cut Exercise on Loft. 14-07-2014 2. 15-09-2014 Exercise on Filleting. 28-07-2014 4.Shell Exercise on Revolve. Patterns Exercise on Helix. 11-08-2014 6. Loft cut Exercise on Assembly of Crane Hook 11 29-09-2014 12 13-10-2014 13 27-10-2014 14. 04-08-2014 5. 08-09-2014 9. The typical geometric model is made up of wire frames that show the object in the form of wires. Graphic user-interface (GUI) techniques also play a crucial role in solid modeling. since they determine the overall usability of the modeler and impact the user’s productivity. It can be seen from various directions and in various views. The solid modeling CAD software helps the designer to see the designed object as if it were the real manufactured product. two and half dimensional or three dimensional. Techniques for modeling and analyzing surfaces and for computing their intersections are important in solid modeling. Providing surface representation to the wire three dimensional views of geometric models makes the object appear solid on the computer screen and this is what is called as solid modeling. There have always been strong symbiotic links and overlaps between the solid modeling community and the computer graphics community .Introduction to Modelling Solid modeling is the most advanced method of geometric modeling in three dimensions. Solid modeling is one of the most important applications of the CAD software and it has been becoming increasingly popular of late. It also gives additional vision to the designer as to what more changes can be done in the object. and benefit from recent developments in the field of computational geometry. This wire frame structure can be two dimensional. Solid modeling is the representation of the solid parts of the object on your computer. because the complexity of industrial models is growing faster than the performance of commercial workstations. The computational aspects of solid modeling deal with efficient data structures and algorithms. Efficient processing is essential. This helps the designer to be sure that the object looks exactly as they wanted it to be. SolidWorks provides a suite of product development tools mechanical design. and communication tools. Realistically render your designs with PhotoView 360 software and then share them with others using eDrawings. SolidWorks Premium includes all of the capabilities of SolidWorks Professional as well as routing and analysis tools. SLDASM (assembly files) file.. SLDPRT (part files). Basically SolidWorks is a Parasolid-based solid modeler. design verification. tools to help convert imported geometry. This means that there are various files embedded within each SLDDRW (drawing files). data management. A TransMagic plug-in for SolidWorks is available that expands its import/export capability via native CAD kernels. SolidWorks files use the Microsoft Structured Storage file format. SOLIDWORKS also gives you integrated file management tools that securely store all project information and track all design changes. and SolidWorks Motion. and utilities that search designs for errors. . SolidWorks includes libraries of standard parts and fasteners.SolidWorks as a Modelling package SOLIDWORKS is 3D solid modeling CAD software that runs on Microsoft Windows and is produced by Dassault Systèms SolidWorks Corp. and utilizes a parametric featurebased approach to create models and assemblies. including SolidWorks Routing. SolidWorks Simulation. including preview bitmaps and metadata sub-files. select the small circle to get circular pattern. Now create the rectangle on the face and extrude. Ex: 02 Exercise on Rib . with the periphery of the same circle draw on more small circle. Select the Top plane. bodies. Use linear pattern option to get duplicates 5. Now select circular pattern. Require directions or planar edges for linear pattern and axis for circular pattern. Now draw circle on the face drawl circle. select the axis of big circle. Description of Pattern command: Create duplicate features. 6.Ex: 01 Exercise on Patterns Aim: To model the given object using Pattern command. Results: Thus the given model is done by using the Pattern command. 4. 3. 2. Pattern Procedure: 1. Draw the base part on the Top plane and extrude it in the direction given in the drawing. EX: 03 Exercise on Loft . Results: Thus the given model is done by using the Rib command. 3. where rib is need 2. Make the sketch fully constrained and make sure that the sketch touches edges. select the thickness and direction of the Rib.Aim: To model the given object using Rib command. Go to Rib option and select the sketched line. Description of mirror command: It will create walls Rib Procedure: 1. Select the plane. Now carefully pierce the guide curve with two profiles. It needs two profile curves and guide curve. 4. Description of Loft command: It add material between two or more profiles in order to create a solid feature.Aim: To model the given object using loft command. Loft Procedure: 1. Results: Thus the given model is done using loft operation. Sketch a circle on top plane(Profile1) 2. Take another sketch(profile2) on the parallel plane. 3. Ex: 04 Aim: Exercise on Sweep . Draw a guide curve in a plane other than the previously used planes. 5. Select Loft option select the profile curve and guide curve appropriately. Select the spiral option then select reference circle. 6. then select profile and spiral. Now select the sweep command.etc. 3. Description of Sweep: Sweep is used for making helical shape like threading. 2. 4. Select this reference plane. Draw a profile sketch as per thread requirement. Ex: 05 Aim: Exercise on Shell and Wrap . Draw reference plane using point and spiral curve. Sweep and Helical spiral Procedure: 1.To model the given object using Sweep and Helical spiral command. Results: Thus the given model is done by using the Spiral and Sweep command. 5. Give pitch and revolution to generate spiral. Select deboss. Select a planar face of the model from where shell has to be made and assign thickness to be given to the model. emboss or scribe and exit from the sketch. Ex: 06 Exercise on Reference Plane Aim: To model the given object according to the drawing by using the Revolve and Shell command. Now use text command in the sketch tool bar in the sketch mode. 5. Wrap feature enables to write text on the surfaces. 2.To model the given object using Shell and wrap command. . At first create a model. 4. Shell and Wrap Procedure: 1. Description of Shell and Wrap command: Shell feature creates hollows in the part with constant thickness. 3. Results: Thus the given model is done by using the Shell and Wrap command. To wrap text on the surfaces select that surface and exit the sketch. Description of the Reference plane: These reference planes are used where geometry is to be created at some arbitary locations other the usual faces and planes. Description: . Draw the required profile on the sketch and extrude Result: Thus the given component is done by using Reference plane. 2. Select the front plane. 3. Ex: 07 Exercise on Assembly on Screw jack Aim: Assembly of Screw Jack using the parts created. Procedure: 1. draw the base profile and extrude. Take a reference plane with references (2 references) at corner and side face. Screw Jack Procedure: 1. coincident mate with the base part. Select assembly mode. 2. 3. 6. Insert tommy bar. Browse the next part clamp nut using axis mate. Insert lifting screw and give concentric mate with clamp nut. First call the base part of the assembly. select the planes of the model cordinate planes and corresponding global cordinate planes. Ex: 08 Exercise on Assembly of Radial engine Aim: Assembly of Radial engine using the parts created. 7. Result: Thus the given assembly is completed. Right click. At first create all the parts of the assembly and save them in one common folder. Now insert washer and screw and use in-plane mates to mate them. It also serves as a supporting aid in the raised position. open. 8. 4. Description: . 5. mate them. interference detection and check for interference. use concentric mate at through hole available at clamp nut. Go to tools.A screw jack is manually operated which is used to lift heavy objects over a small height with a distinct mechanical advantage. float option. Now open another assembly mode and insert mastering rod which is base part of the assembly. Select assembly mode. Radial engines are used in light weight aircraft. Create a subassembly with piston. open. Result: Thus the Radial engine assembly is done. 8. First call the base part of the assembly. Insert piston. 7. 2. crank pin. mate them. 4. 3. Right click. piston pin. float option. Insert the sub-assemblies and mate accordingly. Ex: 09 Exercises on Assembly of Crane Hook Aim: Assembly of Crane Hook using the parts created. Radial engine Procedure: 1. piston rings and crank pin and mate them accordingly. check for Interference detection. 5. Description: . select the planes of the model cordinate planes and corresponding global cordinate planes. crank rod. At first create all the parts of the assembly and save them in one common folder. 6. Description: . Insert cross head block over the crane hook. 2. Then add lock plate on both the sides and fix it by using screw. open. 4. Crane Hook Procedure: 1. dust cover. A hoisting tackle is an arrangement of pulleys with one or more number of ropes passing over them and a hook. 7.The combination of pulleys consists of fixed and moving pulleys. Then connect the plates by using distance bolts and nut. mate them. select the planes of the model cordinate planes and corresponding global cordinate planes. so arranged to give high mechanical advantage. Ex: 10 Exercise on Assembly of Tail stock Aim: To build Assembly of Tail stock using the parts created. 3. Result: Thus the given assembly is completed. 6. 5. Right click. 8. float option. Then add plate on both the sides by having a pulley in the middle. nut and split pin over the cross head block. Lock the pulley with the pulley pin. At first create all the parts of the assembly and save them in one common folder. Select assembly mode. First call the base part of the assembly. used for hoisting purposes in the erection of heavy work. Now fix the arrangement by mating Thrust Bearing. 9. Select assembly mode. Insert bottom plate mate with the help of square bolt and nut.The Tail stock is a part of a lathe machine and is used to support lengthy jobs. Right click. the tail-stock may be moved on the lathe bed to the required position and clamped by means of a clamping bolt. insert centre mate it with barrel. Tail stock Procedure: 1. Insert tightening handle along with stud and mate them accordingly. Insert barrel and mate it with spindle. 3. 6. First call the base part of the assembly. 4. Insert spindle bearing and give concentric mate. float option. . 5. 8. open. hand wheel and mate them accordingly. select the planes of the model cordinate planes and corresponding global cordinate planes. 7. To accommodate works of different lengths between centres. mate them. Result: Thus the given assembly is completed. consecutively insert spindle. At first create all the parts of the assembly and save them in one common folder 2. Finally check for interference using interference detection.