How to find length of Spiral Bar or Helix Bar

[@mahmoudroushdy5486]

I calculated the spiral length using this formula and compared it to the actual length from a helix 3d cad shape they are exactly the same .. well done thank you

[@dergjz7974]

Thank you for the formula and the explanation. This is just what I was looking for!

[@civilengineering94]

Glad it was helpful!

[@BenRyherd]

Was needing this for a CAD model and couldn't think of how to get started. This equation does make sense, but had to prove it to myself before I'd feel comfortable using it parametrically. If you think of a helix as an inclined plane wrapped around a cylinder (thanks Big Bang Theory) and you were to unroll that inclined plane (triangle) out of the cylinder you'd get a triangle that's n*p tall and n*c wide. With Pythagorean theorem we know that the hypotenuse is equal to square root of the sum square of the two other sides. Since the hypotenuse of the triangle is the length of your spiral that's what you're trying to get, you would take (N*P)^2 + (N*C)^2=(Length of Spiral)^2. Square rooting everything you get SQRT((N*P)^2 + (N*C)^2)=Length of Spiral. Then some factoring gives you SQRT(N^2(P^2+C^2))=Length of Spiral, and then you can pull the N^2 term out of the square root (taking the square root as you do) getting you N*SQRT(P^2+C^2)=Length of Spiral (The equation from the video).

[@michaelbraza4610]

Wow, this is very helpful, thank you so much

[@civilengineering94]

Thank you

[@cuongnguyenex]

Thank you very much. That is really helpful for my research!

[@civilengineering94]

Glad it was helpful!

[@vinayakkavade2937]

How calculate cutting length spiral in rectangle column

[@josalejolo]

Thanks! I’ve been searching for this

[@civilengineering94]

Hope you like it!

[@therookiercguy]

Good video

[@civilengineering94]

Thanks

[@civillogy]

good work ,,, keep it up

[@civilengineering94]

Thanks a lot

[@Hi-pf2sg]

This was very very helpful.Thank you so much

[@civilengineering94]

Glad it was helpful!

[@anshkumarentertainment1151]

Good video bro
Where are you from bro

[@esmaeilmotamedi8468]

thanks for this useful video dude.

[@civilengineering94]

Glad you liked it!

[@russelllloydsantos3329]

Thank you sir very helpful video

[@civilengineering94]

Most welcome

[@anissbenthami]

Thank you very much

[@civilengineering94]

You are welcome

[@ztazeux]

do tut of how to find helex pls

[@vincentcacho9867]

Is D inside dia.? Or outside dia.?

[@arifRahman-kd6ur]

thank,s you brother ,

[@civilengineering94]

Always welcome

[@arifafridi8641]

wow very thanks thanks

[@civilengineering94]

Most welcome

[@happening2023]

Sir which IS code this formula is based on? Because i need to explain this with some foundation to my junior.

[@HamidAli-kj3vy]

good bro thanks

[@civilengineering94]

You're welcome!

[@MlatNugus]

Thank u

[@civilengineering94]

Welcome

[@AnikSarker-ll5ef]

thank you sir

[@civilengineering94]

Most welcome

[@khalidnasir5445]

Much helpful site in construction industry issues

[@anubhavparashar0254]

Aree we want proof of the for.ula

[@TMmizan075]

Thanks

[@civilengineering94]

Welcome

[@SeemaSharma-lu6ul]

Brilliant

[@mayamathi6319]

6:21

[@abdurrahim3605]

good

[@civilengineering94]

Thanks

[@kingdomofknowledge5960]

D = 2r = r + r
C = 2 × pi × r .... isn't it, sir ?

[@opakedragon]

isnt 9.4*9.4+2*2=88.36+4=92.36? how did he get 92.73?

[@hafeezrehman5010]

Thts my question too🤦🏻

[@richardpfleging2029]

The circumference at 2 significant digits is 9.42. If you use that in the formula you get 92.73. If you let the spreadsheet calculate PI then you get 92.83. It's just rounding for the video.

[@gaurav522chd]

SUPER ..... GOOD

[@civilengineering94]

Thanks GAURAV

[@vikramvanthala-p7k]

N=7

[@NadavJulius]

5√92.73 = 2.47 ..... or at least that's what I'm getting

[@NadavJulius]

..... I was actually looking for a response 😳