How to make Cable tray (45°-45°) VERTICAL INSIDE ELBOW 90°deg.50mm depth tray.Practical tutorial 4 

Thank you sir

Thank you for watching

​@@CrazyMe30Nice work and clear photography Question: What is the method followed or the law by which it works and how to calculate each size Cable tryu

80% of your tray size divided by 2 for the first 45deg That is the calculation

41% is the best matematic calculation.

You can follow the video

its the same for horizontal?@@CrazyMe30

No sir, for 300mm is 80/80mm

@@CrazyMe30 ok, how do you take this 80? from where? what math is used here? need top know the formulae so i can use for 100m 200 250 and 300 thanks

@@KINOPIO469cable tray size minus 20% the result will be your cut out. Exp: 100 minus 20%= 80, then 80 divided by 2 is for your first 45deg

@@CrazyMe30 yea i understand that but for example ur tray here is 50mm, if we make 50 minus 20% = 10 , then if we divide 10 by 2 is 5, why do you make 20 and 20 to cut while using ur formuale it would be 5 and 5? i dont get it :(, could u give me the cuts for 100mm, 150mm, 200mm, 250mm, 300mm, better haha

​@@KINOPIO469 brother 50 minus 20%=40 not 10 And 40÷2=20