
Jayutmb
Guys I am working on something and need some ideas/help to make a easy lift system.
I want to raise a periscope (yes it is for my R2 unit) out of the dome... However, I am not putting a "periscope" there it will be empty "slot" for different things (not figured that aspect out yet either)
So really I need to figure out how to have a small lift system inside the dome that will move up to a predefined height then back down via the EZ robot controller...
I am thinking this might be done using the EZ HD servos I have in combo with light wood levers on a track maybe? I thought about some kind of pulley lift system at one point ... but I dont think the modified servo will be easy to regulate when proper height is reached and the trip back down ..
Any help/ideas?
linear servo
If you need a longer throw, you can get bigger ones, but they tend to be motor driven and so need an H-bridge to activate.
I have seen some big robots use automobile retractable radio antennae (needs a pretty beefy H-bridge and 12V power) but can extend about 3 feet from a 7" or 8" device.
Playing on your idea of a modified servo, there are sail winch servos available that can move more than 360 degrees, but do have a stop point (from what I have seen usually 2.5 - 3 rotations), or you might be able to use a modified servo and some kind of clutch mechanism to release your winch when fully retracted or extended.
Alan
Alan
Alan
So this steaming pile of junk is a test idea I am going to try out
Alan
firgelli.com
http://makezine.com/projects/make-34/the-mighty-lip-balm-linear-actuator/
Possibility not enough travel though, but cheap and fun to build.