Creo Parametric - Creating an Involute Gear

[@Volodymyr_Derevianchuk]

It remains a mystery to me why of all the known methods creating a gear, Dave showed exactly this strange way ... Merry Christmas to everyone!

[@CADPLMGuy]

This is the suggested technique from the PTC Knowledge Base as stated in the description.

[@dacoach011]

Hi nice tutorial. Have had fits with many gear generation methods over the years. Seems like PTC should just build in a a simple gear function and save us all some grief. Anyway around 9:50 you talked out variable root_circle_diameter and used constant 8 when relation wouldn't verify, because earlier you declared root_circle_radius. Great videos. Keep up the great work!

[@CADPLMGuy]

Based on the research I've been doing, I don't think there is a simple gear function. The design of gears is extremely complex involving a lot of design and manufacturing functions. I know other CAD packages offer automated gear generation, but I suspect it might be highly simplified.

[@lucapusterla2946]

Hi Dave, a weird and weak method in my opinion, as it’s difficult to adapt to other situations. A good parametric model should have definition of primitive diameter, module, pressure angle, etc, etc, etc. I think much better to use curve by equation for tooth side and having all gear parameters to easily pass from a gear to a different one. A correct pattern should be obtained by an extruded cut and an axis pattern. Anyway thank you for working during vacation too!! Merry Christmas from Italy!!

[@Chanakya50BC]

Agree. It is easier to define it using Datum Curve, 'curve from equation' using standard gear terminologies like module, pressure angle etc.

[@CADPLMGuy]

Wait until next Wednesday’s video. As I stated in the description, I’m demonstrating PTC’s suggested technique from their Knowledge Base.

[@MohanRaj-iu4tb]

Thank you so much . It was really helpful for me .

[@CADPLMGuy]

Thanks, Mohan!

[@dinardwirachmadi5742]

Hi i have a question, how can we calculate the diameter ofinvolute of spurs gear?

[@babluvashisth8344]

When we make pdf of details of product dimensions then in pdf the line are bold/thick so in pdf not seen the actual arc how we make thinner these lines in drawing

[@babluvashisth8344]

Sir how we make details drawing dwg files without any changes when we make files its dim. Colour or dim. Style will change when we open in autocad this file

[@cadinsider964]

No way. if u try it for different number of teeth the what? you have to again model everything?

[@CADPLMGuy]

No way. It’s parametric based on the number of teeth and module. Although I think I screwed up the mirror angle in one of the videos. Should be 360 / 4 x teeth.

[@cadinsider964]

@@CADPLMGuy yea.