sprockets Modeling demo by Michael Brennan Short film by Svetlik Making and Using Drop-On Poses TinkeringGnome's Atomic Rings PRJ 2001 Star Gate effect in A:M with PRJ Comparison of AO and Radiosity Renders Animated Commercial by Soulcage
sprockets
Recent Posts | Unread Content
Jump to content
Hash, Inc. - Animation:Master

Gear shape experiment


Recommended Posts

  • Hash Fellow

This is the profile of common "spur gear".

10teeth.jpg

The edge where a gear tooth will contact the tooth of a neighboring gear has a special curve called an "involute," designed to allow the gear teeth to smoothly slide over each other as their gears turn on their axes.

This curve varies depending on how many teeth a gear has (and other factors) but the tooth overall tends to have six landmark points that are easily distinguished, which I have marked in red...

image.png

 

A spline made with six points per tooth can approximate this shape. Here I have fit six points to one tooth and used the Duplicator wizard to copy that around the remainder of the gear...

image.png

 

The resulting A:M spline shape closely matches the intended contact interaction..

gear003.gif

 

Possibly a wizard could be made to create proper gear outlines (for any size gear and any number of teeth) in A:M for 3D printing projects. I realize dedicated CAD programs usually have some tool for gear design but it would be fun to be able to create working mechanisms with native A:M models.

Link to comment
Share on other sites

  • Replies 0
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Posted Images

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...