# Thread: Help Creating Helix

1. ## Help Creating Helix

Need Help!
How do you create a Helix in FeatureCam? I've looked in all the documentation and help file and find nothing on creating a helix.
Thanks Barry

2. I had to do this myself recently, look in the help file and read about functions. You are able to mathematically describe the helix you need. It takes a bit of trial and error but if I can figure it out anyone can.

Gary

3. ## helix

Hi there i have recently had a similar situation and hope this helps

try using the:-
X=F(t), Y-G(t), Z=H(t) function,

F = .61*cosd(t)
G = .61*sind(t)
H = -2.5/90*t+2.125

start = 90
end = 180
increment = 1

By using the function the for the F & G the .61 is the radial point from center used in this case the radius is 0.16
The H is the height its just trial and error but it is pretty simple once you have drawn a few the start point is the begin and end point is the end somewhat and the increment is the curve fineness try to use 1 as it is the closest you can get hope this helps.

Adam out

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