GearHeads Corner

Hi
Not sure if this a problem or me

Use the "Reset to defaults" on "non circular gears" then I teeth both wheel and pinion

Get this result see attached when zoomed in teeth overlap ?


don't think this ok

Ian

Forgot a couple of things


this is on version 2.281
and I can fix problem by changing the width to 0.51

Hi:

  Yes, with noncircular its always possible to clip, the user has to play with things such as width and such to
ensure its a match that will work. The reason for this is that to tooth a noncircular gear is a subtractive process
and one that used the second derivative of the generating formula. Unless I use a very small derivative step
which would take a very long time to calculate , the possability fo overlap can occur, Gearotic is balanced between
speed, complexity and accuracy.. over time each is tweaked as versions show weaknesses on eother side.
  Its kinda like trying to figure out the perimeter length of an ellipse, sounds easy but its actually a derivative
function that has no answer, the longer you calculate it the closer you get.. so in the end some things will always
be a mathematical compromise between speed and accuracy, I figure no-one wants to wait an hour for toothing
when moving to a .48 width can fix a firly well represented answer.

(We'll discuss this more in the next module release..which while easy to use I think, is easily the most complex
gear module to be put in the program.)

Art

Hi

Think I understand that Art :-[

Was mainly pointing it out because it happened immediately after pressing "reset to defaults" on the "non circular gears" tools page.
Assumed default state would work


Sorry if I ask stupid questions but there is a lot to learn
There is so much in GT  and I am probably only going to use 20% at most

Thanks
Ian

Ian:

  Never a problem.. Im aware the Docs arent usually a great deal of help, the video's get old and out of date,
so Im always adding more, and am happy to answer questions of any sort. Bug reports help too as it keep things clean..

Art