Worm Gear

[phoxeoy]

I'm new to Mechanism. I have a model of a telescope mount. I have a adjustment screw that I want to control the rotation of one of the parts. It's a Worm Gear, I don't know or can find the right joint or setup to make this happen. Thanks for any help with this.

 

[justgeo]

You might want to try using a slot-follower connection.


If youcreate a datum curve in the "valley" of your worm gear and thencreate a point on the mating part to follow it you might get the motion you're looking for.Assemble the two components using a cylinder connection. Then create the slot-follower connection while in Mechanism using the datum curve and the datum point.


See if that works for you.


Justin

 

[phoxeoy]

I'm not explaining it very well. What I'm looking for is the method of creating a way; if you rotate one object abouttheZaxis,it will rotate another object about the Y axis. The two object are in contact with each other.

 

[billwillett]

I have a worm in one of my mechanisms and what you want is easy if you have Wildfire.


Define a gear connection. You select the axis of the worm and the axis of the worm gear. On the properties tab of the gear definition you can enter the ratio.





Bill

 

[phoxeoy]

Does it work the same way with 2001?

 

[ams_mearnest]

Phoxeoy,


Gear connections were new with Wildfire. If you have 2001, you will probably not be able to drag them. When I used 2001, I would define each gear as a pin joint and then assign a driver to each of them. You figure the ratio into the two different velocity entries. Finally, run the motion analysis. It will look correct when you playback the results.


-Mark