topic Re: Difficulty using Motion Study in Fusion Support Forum

Difficulty using Motion Study

evandiplacido — Mon, 21 Nov 2022 19:57:03 GMT

I am designing a servo gripper for the end of a robot arm. I created motion links for the rack and pinion, which works great. I can rotate the pinion from 0 to -127 degrees, which also moves the racks accordingly. I am trying to add a Motion Study so I can see the animation more clearly.

I created a Motion Study, selected the revolute joint on the pinion, then added a point at step 18 (or something) and set the angle to -127 degrees, but then the racks move way too far:

I tried capturing the position, but I am still struggling to get this to work. I added a copy of this project as an attachment.

Re: Difficulty using Motion Study

jhackney1972 — Mon, 21 Nov 2022 20:08:34 GMT

You lack a base grounded component and then a couple of joints to keep your model together. I did a quick grounding and an As Built Joint to get it to stay together then the Motion Study is easy to add. I used a Tangent Relationship on the cam follower and slot.

Model is attached, caution where you open it so it does not pollute your assembly. I recommend a separate folder.

(view in My Videos)

Re: Difficulty using Motion Study

evandiplacido — Mon, 21 Nov 2022 20:10:13 GMT

Thanks so much!