THANK YOU SO MUCH SIR, I HAD TRIED THIS BEFOR WATCHING THIS VIDEO , BUT I FAIL EVERY TIME TO MAKE PARAMETRIC GEAR .. BUT JUST BECAUSE OF YOU I LEARN IT FASTER. IN FUTURE AFTER GETTING GOOD SALARY AND INCREMENT I WILL BUY THE MONTHLY SESSION . , LOVE ROM INDIA
That took me way longer than 18 minutes but it was straight forward! That was my first time using project, I'm not sure I get it but it worked? Thank you.
for some reason my curve keep intersection with each other after mirroring, until I have noticed datum angle on my design supposed to be 6.55 instead of 6, I'm not sure if it because I used a different diameter than what you use or something els
very nice man. Wish you had shown the result by changing the parameters in the last and to how it updates. i am going to creat one based on this tutorial.
Thanks a Ton for the vedios. I am stuck at 6 degree offset plane used to mirror the involute profile. it defines the tooth thickness and works fine till a perticular size of gears but beyond that it fails. can you please explain you to define that value in simple terms. will be really helpful, Thanks
I change the Pitch dia in the relation but it doenot updates every thing else automatically. which means it is only for the values for which it is modeled.
That 6 degree angle is wrong. It should be 4.5 for 20 instances. I’ll cover that in another video. There should be a Relation that the angle of the mirror plane is 360 divided by ( 4 times number of teeth ). I’m learning this as I go along.
@@CADPLMGuy Just for future people in the comments, that 4.5 degrees isn't measured from the top plane, it should be measured from where the involute curve crosses the pitch diameter. So make a point at the intersection, use it and the central axis to define a plane, and then measure the 4.5 off of that. I'm not a big gear guy so correct me if I'm wrong, but doing that will make your tooth thickness and spacing equal
@@timbarrett4580 I don't get it, make a plane that goes through the point and through the center axis? Then it creates errors Edit: nevermind, thank you!
In the last step of writing a relation for pattern, the angle between members needs a relation too. angle = 360/teeth. Else, you will always get just 4 teeth.
Dear Dave Martin- what is the correct way to reference my big assembly to a family table reference part? For example: I have a ring with different sizes and thicknesses (family table ring) , I want to build my big assembly (or is it skeleton?)to reference that family table ring, so that my assembly will change based on which ring I choose from my ring family table. Should I use the ring as a reference or- should it be done in skeleton or do I create family tables of my assemblies in my assembly? Best regards Henrik
thank you very much i will have a stantard gear to use. For information the shape of teeth it could be better that the symetric plane will pass thrue a point onto the Pitch diameter separate by a distance of a pitch p/4 to use the pitch formula p=pi*m.
The tooth width should be parametric. and this is not correct here. It should be like 360/80. i.e each tooh has 2 times of that mirror angle and then there are 2 time of mating teeths. so for 20 teeth it should be 2*20*2=80 such angles of mirrors in a 360 rotation which is 4.5 for one teeth.
@@CADPLMGuy which video did you publish this in and are you able to help with changing the values of the parameters as not everything else updates. Thank you
@@CADPLMGuy I didn't mean it in that context. As someone with only a basic level Creo skill, I would much rather draw the features and perform the calculations manually rather than inputting these parameter values in. That's just my style.
@@MACROPARTICLE If you research the physics and mechanics involved in gear design, you will find that you cannot simply just draw the feature. This method does not deliberately use a more complicated technique than necessary. In fact, it actually approximates the necessary geometry for a constant pressure angle. I've recently been working on a method using Mathcad that creates more accurate geometry for gear design. Unfortunately the physics of the real world do not change based on our CAD skill level.
@@CADPLMGuy Hi. Great video. I'm a long time Creo user and know it's both powerful and sometimes unnecessarily complicated. I feel like this process leans heavily towards the unnecessarily complicated side (not your fault, of course). I'm just learning to use Fusion 360 and it has a built in gear generator feature. Just enter a few parameters and the gear magically appears! I was thinking I would just build my gears there and import the step models into creo for use with the rest of my assembly. Have you looked at doing something similar and, if so, do you still feel like it's worth building all the relations yourself in creo vs. importing from another modeler?