The diameter of the circle naturally results from all the other dimensions and is a driven dimension. It changes, depending on the number of teeth. At about 2:50, you can get a pretty clear view of most of the dimensions, although they are a little obscured by the relations symbols. For the 15 tooth sprocket, the outer diameter ends up being 66.92mm and the centerline diameter is 61.08mm. Both are driven.
I probably did this tutorial using 2011, but now I'm using 2013. This sprocket doesn't have proper involute gear teeth. The shape is fudged to look good enough for a render.
I was trying to keep the tutorial somewhat simple for my students. This was a 1st semester project and I think we didn't get to helical cuts until the 2nd semester. Also, if you look at the screws and nuts in the Solidworks toolbox, all of the threads are faked in this way. Another advantage to this method is that it makes the part file size a bit smaller.
Your tutorial is really fantastic and informative. Thank you very much.
The diameter of the circle naturally results from all the other dimensions and is a driven dimension. It changes, depending on the number of teeth. At about 2:50, you can get a pretty clear view of most of the dimensions, although they are a little obscured by the relations symbols. For the 15 tooth sprocket, the outer diameter ends up being 66.92mm and the centerline diameter is 61.08mm. Both are driven.
Great video
Btw...what diameter did you use for the circle on the sketch at the beginning?
YOU ARE MY HERO
IM IN LOVE
Is it possible that you can make a tutorial on creating the starter model or is there a link to it somewhere in the SolidWorks files? Thank you.
gr8 video
I probably did this tutorial using 2011, but now I'm using 2013. This sprocket doesn't have proper involute gear teeth. The shape is fudged to look good enough for a render.
any reason why you didn't use a helical spiral for the thread cuts?
I was trying to keep the tutorial somewhat simple for my students. This was a 1st semester project and I think we didn't get to helical cuts until the 2nd semester. Also, if you look at the screws and nuts in the Solidworks toolbox, all of the threads are faked in this way. Another advantage to this method is that it makes the part file size a bit smaller.
ZzZzZzZzZzZz