HOW TO CALCULATE CHAMFERING II GEOMETRICAL CO-ORDINATES IN CNC II CNC PROGRAMMING BASIC : cnc, cadcam, cnc programming, cnc cycle time reduction cnc, learn cnc, cnc information, diy cnc cnc router, cnc routers, cnc plasma, cnc plasmas dnc, cnc, dnc software, cnc dnc esprit, cnc software, cad cam software, cnc programming cnc manufaturing jobs, bsmes, engineering jobs, cad engineering cnc, cnc information, cnc videos, cnc info cadcam, cad, cam, machining cnc, cnc machines, cnc machine, cnc machinery cnc, router, g-code, gcode In these following figure there have four chamfers. First chamfer dimension =5 X 450 Second chamfer dimension = 6 X 300 Third chamfer dimension = 6 X 300 Fourh chamfer dimension = 6 X 550 Given : Ɵ1 = ? , Ɵ2 = 40 , Ɵ3 = ? , Ɵ4 = 60 , Ɵ5 = 78 Calculate formula :- tan Ɵ = (opp side )/(adj side ) for calculating opposite side of first chamfer and diameter 1 tan 45 = (opp side )/(5 ) :. Ɵ1 = 40 – 10 = 30 for calculating opposite side of second chamfer and diameter 3 tan 30 = (opp side )/6 Ɵ3 = 40 + 7 = 47 Geometrical co-ordinates :- POSITION 1 : - In position 1, tool at X= 30 but Z= O we can see in fig POSITION 2 : - In position 2 ,tool at X= 40 and Z= -5 , means it make chamfering and when cutting operation perform that time tool travel negative at Z- axis . POSITION 3 :- In position 3, tool cutting constantly from position 2 to position 3 . POSITION 4:- In position 4, X =47 and Z = -31 , means it makes chamfering and we already calculate it . POSITION 5:- I n position 5, X =53 and Z at same distance -31 . POSITION 6 :- In position6 , X = 78 and Z = -73 . http://www.hdknowledge.com/2018/02/how-to-calculate-chamfering-geometrical-co-ordinates-in-cnc-cnc-basics-g-code.html