To make an isometric dimensional drawing of a connecting rod using isometric grid and snap.
The connecting rod in the connection b/w the piston and crank shaft. It joins the wrist pin of the piston with the throw or crank pin of the crankshaft. The lighter the connection rod and piston greater the resulting power and lesser the vibration because the reciprocation weight is less. The rod is split to permit its being clamped round the crankshaft.
The lining may either be in the form of a separate split shell with a steel backing. When a separate split shell line is used, it is held in place by the connecting rod cap and by bolts which clamp together the split parts of the liner.
PROCEDURE:-
TO MAKE A LINE:- the line command allows to draw straight line. You can specify the desired starting and end point using either 2D or 3D co-ordinates.
GRID:- This will make the whole screen into a graph paper (upper limit of the screen should be 100, 100).
COMMAND:- GRID (return)
Grid spacing (X) or ON/OFF/snap/aspect: 10 (return)
GRID SUB COMMANDS:-
ON/OFF :- it acts as toggle for switching the grid on/off, on the screen OR (FT) also is a toggle.
SPACING (X):- How far between grid pts. If you give a value in response
To the spacing requirement. You will get up a grid with equal x and y Spacing.
SNAP:- If you select snap or s, auto cad takes that you want the specification (as already entered in response to grid spacing requirements).
ASPECT:- If you choose aspect or- A, auto cad take that you want to set Up grid with different x and y spacing. Then it will ask for different values of x and y.
SNAP:- it makes the uses to move in comfortable increment say every 10mm or 20mm. (as specified by the user).
ON.OFF:- it acts as toggle for switching the snap on or Fg dose the same toggling. ASPECT:- here also you can have different values of x and y.
ISOMETRIC:- it gives you a grid like you would find on iso.
GRAPH PAPER:- Here you can draw either top, front or L.H.S view of any item. While drawing isometric drawing we should be clear that it is not a 3D drawing.
TO MAKE A CIRCLE:- with this command you can draw a circle wherever you want. You need to give co-ordinate of the centre pt. and the radius.
COMMAND:- Circle (return)
3P/AP/TTR/<center>10,10 (Return) Radius<diameter>: 20 (Return)