How to model Machine parts | कैसे बनाते हैं CAD | Simple modelling technique step by step | GRS |

this video demonstrates modeling of truss bearing using creo parametric or any other CAD modeling package as the modeling sequence or the procedure or the methodology remains same this blog was been created or this bearing truss or trust bearing was created using the features like extrudes round and additional datum plane along with three default datum planes and one default coordinate system let us proceed with the tutorial create a new part file click on noon under the new file creation make sure that the part is selected cancel the inches default template and enter the name of the file as truss bearing make sure that there is no space between the two words always two words to be separated by either - or an underscore the space is not recognized in creo parametric pick on OK select the unit system under the new file option as millimeter Newton second part solid which is here pick on OK this is the new file which has the name trust bearing underscore 0 1 switch on the default datum planes and and the space or the datum plane area to the free space or here the first command which will be used for creating this block is the extrude for making this base platform use the command extrude here click on the extrude pick on the placement pick on define to define an internal sketch select a plane which is highlighted in the message over here select this base plane under the placement window pick on sketch pick on the sketch view to orient the sketching plane as a 2d plane now draw the rectangle which is having the width of 80 millimeters and the height of 60 millimeters make this rectangle symmetric about the vertical and horizontal line to make the symmetry use the centerline vertical and horizontal since the vertical centerline is not aligning with a vertical reference line pick on the constraint and use the coincidence constraint become the centerline and pick on this reference line centerline is now aligned with a reference line because a reference line is a fixed reference to which all the sketch entities will be aligned now use a symmetric constraint under the constraints toolbar use the symmetric constraints this point and this point to be symmetric about the vertical centerline this point and this point to be symmetric about the horizontal centerline observe clearly that the width of the rectangle and the height of the rectangle along with the necessary constraints and the dimensions it is defined select the default orientation and pick on done now enter the height of this block to be of 12 millimeters observe that under this set or under this extrude feature itself the elongated holes can be included to add these holes in the same extrude pick on the placement pick on edit now pick on the sketch view for the 2d orientation draw two circles circle one and circle to observe that they are in line with each other and having the equal radius draw the tangent line from this end to this end similarly this end to this end enter the dimension of this line with respect to the left edge to be 15 millimeters and the center distance between the center holds to be again 15 millimeters and they are placed at a distance of 15 millimeter from the bottom edge the radius of the circle is 5 means the diameter is 10 trim the unwanted entities become the trim option here trim this entity and trim this entity observe that it is now covered with a shaded area the shaded area is going to be extruded as a solid and the unshaded area will be extruded as a cut out mirror this elongated hole about the vertical plane so that it will be replicated on the right-hand side of the rectangle put the window around the rectangle and pick on mirror option here become the vertical centerline now check for the default orientation switch off the datum planes to observe the geometry or the sketch clearly become done to complete the sketch height of this block is already defined as 12 millimeters accepted or say done now extrude the cylinder block here one thing to note here is all the datum planes which lie are at this block itself we need to have one datum plane which is an offset plane from the base plane the offset distance to be 90 millimeters hence use the datum plane options from the datum tool bar because the datum plane select the bottom plane over here officer that plane to a distance of 90 millimeters pick on done to complete the placement definition of the plane note here the datum plane is recorded in the model tree use that datum plane to extrude this cylindrical object pick on the extrude here because the placement we can define pick on this plane and select schedule pick on the sketch views now draw a circle click on the circle over here draw the circle here which has the diameter of 440 and is placed at a distance of 90 millimeters from the backside edge now check for the representation that is default orientation becomes done extruded in this direction for the height of 40 millimeters pick on done now create the block which is an l-shaped block which connects the platform and the cylinder click on the extrude command here pick on the placement began define select the vertical plane which is passing through the cylinder pick on sketch under the placement window become sketch view take the necessary references to construct that geometry pick on the reference here take the reference of the center axis of the cylinder switch on the datum axis for that click on this plane as a reference plane click on this edge as a reference pick on this edge as a reference and similarly draw the rectangle the rectangle starting from here and it should end here similarly draw the rectangle from here and it should end here delete the segment is here pick on the leaf segment pick on the segment to delete one extra entity is found over here delete that line not the constraint when there exists two entities or overlapping one another and to select a particular entity right click here outside now pick on the area where you want to select the entities you will get a list of entities present in the area where you are picked it is highlighting two entities one is a small line another it's a big line small line need to be deleted select that line become ok and pick on right-click become delete enter the width of this to be ten millimeters similarly this height to be ten millimeters now trim this segment were here pick on the trim become trim here because or if we can trim here because entity to trim align this edge to this face pick on the coincidence constraint here this edge to be coinciding with this end and specify the dimension for this particular rectangle or easier it should be placed at a distance of 15 from the top pitch 15 millimeters now delete a small segment over here akin till identity now the dimensions and the constraints are perfectly defined enter the width of this or make this line and this lines equal to each other pick on the constraints over here equal constraint this should be equal to this once the sketch is completed become done check for the default orientation of the model and pick on options symmetric so that the extrude will be extruded symmetrically along the sketching plane this width of the x2 to be 40 millimeters pick on turn now extrude a rib which is going to connect the base the L and the cylinder use the extrude command here become extrude become placement define select the vertical plane which is passing through the cylinder pick on sketch pick on sketch view now take the necessary references you can reference this end to be referenced and this end to be referenced along with that top edge to be referenced close the draw a rectangle which will be starting from here and ending at the base now make use of the edges over here pick on the usage or the project edge pick on the first entity before that select the chain under the type pick on this end press hold control click on this end there are two possible options to connect this edge and this edge either it can be connected in this way or begun next here under the menu to select only this idea we are interested in this area so accept it click on close make corner pick on this line and pick on this line the extension is got eliminated similarly make on this line click on this line the extra extension got eliminated in this condition check for the isometric projection we got done extrude it to a symmetric distance of 10 millimeters click on done to complete the sketch now this model exactly represents the model which is present over here but the rounds and few cut outs are missing pick on the extrude because placement pick on define select the top face and pick on sketch draw the concentric circle concentric circle pick on this end and draw the circle of diameter which is 20 week on done under reverse direction cut the material for through all now specify the desired fill its pick on the round option here and select this inside edge enter the value as Phi now pick on the sets or here pick on the new set pick on the stop edge press hold ctrl pick on this top edge when two edges having the same Phillip value use the ctrl key so that the multiple selection is possible and both edges will take the same Phillip value enter the value as 10 sorry enter the value as 5 plus 10 15 the fret value become done now specify the Phillip value for this rib pick on the round here pick on this end for rounding enter the Philip value as 17 become done now specify the fill it over the side and decide the radius value is 20 millimeters click on the round here pick on this end for rounding similarly pick on this and press hold ctrl while doing multiple selection which are required to take the constant Phillip value enter the value here as 20 become done set the model to the isometric orientation this is how the trust bearing can be modeled using any of the CAD packages thank you for watching this video for more videos on modeling please visit the playlist in my channel

Channel: CAE Worldwide

Views: 60,765

Keywords: cad modelling technique, cad modelling, cad modelling software, cad modelling competition, cad modelling interview questions, 3d cad modelling, tail stock cad modelling, cad design tutorial, cad design interview questions, cad design software, cad design engineer, cad designing course, tail stock model in creo, cad tools tutorial, cad tool test, creo tutorials for beginners, creo tutorial, creo tutorial for mechanical engineering, creo drawing tutorial, proe tutorial

Id: l3dq81lQ9lo

Length: 17min 30sec (1050 seconds)

Published: Sun Mar 29 2015