Search found 14 matches

by JohnnyMudcrab
17 Apr 2014, 16:52
Forum: General questions
Topic: Why is my gripper behaving the way it is?
Replies: 9
Views: 5223

Why is my gripper behaving the way it is?

Hello, i modeled a gripper inspired by the Robotiq 3-Finger-Gripper. I managed to make it move the way it should and apply the needed forces. Still, there are some problems when it comes to the dynamic behavior. When gripping an object, the whole mechanism seems to slowly break apart. To make that m...
by JohnnyMudcrab
16 Apr 2014, 15:57
Forum: General questions
Topic: How to model a worm gear
Replies: 4
Views: 3002

Re: How to model a worm gear

Hello, i found a good solution. In my case the movement direction of the gear and the direction the external forces want to move the gear are reverse. Therefore i can just change the joint interval so that the minimum joint position follows the gear movement. That makes sure that the joint can't be ...
by JohnnyMudcrab
16 Apr 2014, 13:41
Forum: General questions
Topic: How to model a worm gear
Replies: 4
Views: 3002

Re: How to model a worm gear

Hey, thanks a lot for the reply. This is exactly how i do it at the moment, but its not ideal. The problem is that by dynamically adjusting the torque in order to lock it, you will also change the torque the worm gear is able to apply. Maybe it is possible, if you make it depend on the current rotat...
by JohnnyMudcrab
12 Apr 2014, 18:17
Forum: General questions
Topic: How to model a worm gear
Replies: 4
Views: 3002

How to model a worm gear

Hey i need to model a worm gear, so that i can move the joint but it can't be moved from external forces or torques due to the self-locking of the gear. I'am pretty sure it won't be a good idea to model the mechanic of a worm gear, since it relies on a complex geometry which i can't model with primi...