Hi everyone this is my first post on here so before I begin with my question I would just like to say that the projects on here on the most professional I have seen, very impressive!
Background: For those interested…
I’m a university student and the time has come to start my undergraduate thesis, I’m looking at the kinematics and characteristics of parallel manipulators (Stewart platforms etc.) The idea, as it currently stands is to piece together standard non actuated modular components that will be able to connect together to form various configurations and mechanisms. I would like to have it actuated but I fear the linear actuation would break the bank, plus there might be some issues with time.
Question:
Can anyone recommend any manufactured non actuated translational/linear joints? I’m thinking of using some sort of extendable bar, along with lynxmotions ball joints at each end.
The suggestions you gave seem along the right line and I’ll have a look at some products.
The problem is I have mainly come from a theoretical background and this is my first time dealing with physical joints. My searches are limited to things like ‘linear joint’ as I don’t really know what the manufactures will call them. I’m trying to imitate a linear actuator.
The load is not necessarily important for the joints in this project, so long as the joint can remain extended against gravity and the top plate. In terms of size I’d say the upper limit I am aiming for is roughly around 30cm at full extension.
Thanks for such a quick reply, it’s most appreciated.
Think 1/4"-20 threaded rod, along with 1/4" drill rods for guides. should give you the travel. Spin the threaded rod with a small DC motor, R/C servo motor, or stepper.
