Over the past few days, a model of the pentacopter has been created.-
Click start/create-->mechanical-->part design--> write down the name of the path and position the sketch i.e. click a position on the blue landscape and click ok.
Everything on the RHS changes immediately; Now a line can be drawn by clicking the corresponding tool; Similarly, we can draw curves, closed rectangles and circles. There is one such icon indicating 'profile'. That helps us to specify the two corners of a closed square or rectangle. Now, click the 'constraints icon' which allows us to give exact measurements to the diagram. Double click each measurement arrow and give a specific value. Now use the 'pad' tool. What it does is, it adds a third dimension to whatever we draw in the other two dimensions. It is used to 'extrude' the object. Click ESC on the keyboard to get out of any option i.e. pad, profile, constraints etc. Whenever there is too much use of constraints, i.e. we do the same measure again and again, the green part(which says it's right) turns pink. Now, this is not good and means we need to get rid of excess measurements. Click one of the pink arrows and delete it.
Now search for the 3d part in the search bar in the bottom of the screen. Click the name of the part saved. Now click PLM access--> propagate--> don't click ok because you don't want CATIA to update. This saves it. Now do the same process again.
To assemble the design, click insert--> existing 3d part-->select assembly name and search for the 3d part.(Now the search screen with all the assembly files available comes with a blue background)
Now click the create button-->mech-->assembly design--> give a title name--> finish.
Now insert-->existing 3d part--> click the name of that part--> place it.
To insert one object inside another, there is an engineering connections button. Click the name of the project on the left topmost part of the blue screen. Now click insert--> engineering connections. Somewhere in the dialogue box it should say 'position first instance'. Just remember to make sure it is that way. Now click the object first that you want to move onto object2(to be stationary). Then click the axis, or, the edge, or the face to be that property with which the two objects would align. In the options on the top of the engineering connections dialog box, select 'fix'. If this is not done, then each time a third object is fixed, the other two objects fall apart. Now, the last thing left to do is to obtain the inertial matrix.
Click start/create-->mechanical-->part design--> write down the name of the path and position the sketch i.e. click a position on the blue landscape and click ok.
Everything on the RHS changes immediately; Now a line can be drawn by clicking the corresponding tool; Similarly, we can draw curves, closed rectangles and circles. There is one such icon indicating 'profile'. That helps us to specify the two corners of a closed square or rectangle. Now, click the 'constraints icon' which allows us to give exact measurements to the diagram. Double click each measurement arrow and give a specific value. Now use the 'pad' tool. What it does is, it adds a third dimension to whatever we draw in the other two dimensions. It is used to 'extrude' the object. Click ESC on the keyboard to get out of any option i.e. pad, profile, constraints etc. Whenever there is too much use of constraints, i.e. we do the same measure again and again, the green part(which says it's right) turns pink. Now, this is not good and means we need to get rid of excess measurements. Click one of the pink arrows and delete it.
Now search for the 3d part in the search bar in the bottom of the screen. Click the name of the part saved. Now click PLM access--> propagate--> don't click ok because you don't want CATIA to update. This saves it. Now do the same process again.
To assemble the design, click insert--> existing 3d part-->select assembly name and search for the 3d part.(Now the search screen with all the assembly files available comes with a blue background)
Now click the create button-->mech-->assembly design--> give a title name--> finish.
Now insert-->existing 3d part--> click the name of that part--> place it.
To insert one object inside another, there is an engineering connections button. Click the name of the project on the left topmost part of the blue screen. Now click insert--> engineering connections. Somewhere in the dialogue box it should say 'position first instance'. Just remember to make sure it is that way. Now click the object first that you want to move onto object2(to be stationary). Then click the axis, or, the edge, or the face to be that property with which the two objects would align. In the options on the top of the engineering connections dialog box, select 'fix'. If this is not done, then each time a third object is fixed, the other two objects fall apart. Now, the last thing left to do is to obtain the inertial matrix.
my good friend, L.V. Renganathan to the left, and me to the right, Vamsavardhana Vijay.
