• “ortho”-https://help.autodesk.com/view/ACD/2024/ENU/?guid=GUID-128AC5D7-72B0-498F-958D-7F619A73EC5F
• First “limits”—> set to 0,0 and then 27,10 ; then “zoom”, then “a” ( a means all)
• “line” to make a line (can also use the option after selecting first point and then type “@linelength<lineangle” [email protected]<30 means a line of length 2.25 and angle 30.)
• after “line” to select first point type;
• end and then select any end point of any arc or any shape on page

1. per to make a perpendicular on something
2. int to join to an intersection of something
3. mid to join line to mid point of something
4. node to join to any arbitary point
5. cen to join to centre of something
6. tan to join point to a point where tangent can be made

• “pline” to make polyline, type w to adjust width if want constant width then keep starting and ending width same if want tapered the increase or decrease ending width from the starting width (can also use fit and spline features,etc).
• “pedit”
• ‘snap’ and then the value(snap size)—> (ex 0.125) to get cursor between the points ; ”off “to turn off snap ; f9 to turn on snap and f7 to turn of grid
• “arc” then on page specify starting point and then end point(second point) and draw accordingly(arc will be drawn in anticlockwise direction) or specify centre first then select starting and end point,and ctrl to change the direction of arc
• “circle” to draw a circle and specify its center and radius (can use 2p,3p and ttr options,etc)
• “ellipse” to draw ellipse, specify its center, semimajor and semi minor axis..after ellipse-Use isocircle to draw circles in isometric view.
• “polygon” to create a polygon, enter sides, mention Centre, then mention if it is inside the circle or outside by using “i” or “c”
• “point” to make a point ; then “pdmode” 0= . ; 3= ❌ ; 2= ➕ ;” pdsize” then enter value
• “dtext” then select pick the point and select height ,press enter once to go to next line in the textbox and enter twice to escape dtext