Join George Maestri for an in-depth discussion in this video Using expressions to drive gears, part of Rigging Mechanical Objects in Maya.
- We now have our crankshaft and our first gear turning.…So let's go ahead and translate that motion…through the other gears.…So the first one is this smaller gear here,…and this is called Gear_16,…and again that's because it has 16 teeth.…So we're going to be driving,…32 teeth is going to be driving 16.…Well that makes it pretty easy,…it's going to be a 2:1 ratio.…And typically what you do…is you divide the driving gear…by the driven gear.…
So 32 divided by 16…is going to be two.…So this is going to work…at twice the rate of the driving gear.…So we can set this is up using what's called an Expression.…Now before I do that,…I'm actually going to go into my Outliner…and create a group for this.…I'm gong to select Gear_16…and I'm just gong to group it to itself.…I can do Edit, Group,…or Ctrl+G.…Then I'm going to name that,…let's just call that Gear_16GRP.…
Now, when you group something…the pivot comes in at the origin,…so we still want to do Modify, Center Pivot,…so that we have that.…Now, the reason I'm doing this is because…
- Setting up a scene in Maya
- Setting up joints to control pistons
- Creating a push rod
- Simulating springs
- Syncing gears to the crankshaft
- Creating a belt drive with wire deformers
- Rigging the conveyor belt
- Preventing flipping in motion paths
- Finalizing the scene
Skill Level Intermediate
Rigging a Cartoon Character in Mayawith George Maestri2h 34m Intermediate
1. Rigging Pistons
2. Cams and Rocker Arms
3. Gears and Pulleys
4. Rigging a Conveyor Belt
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