|
|
|
![]() |
|
|||||||
|
||||||||
![]() |
| Thread Tools | Rate Thread | Display Modes |
|
#1
|
|||
|
|||
|
horizontal bar clamping device
For pyramid climbing: I'm considering a way to rotate our robot upwards off the ground by clamping onto the horizontal bar and swinging our robot body up, like this poorly drawn diagram.
![]() Two questions: 1) What kind of clamp would be able to stay in place without slipping? Is it COTS or can we build it ourselves? 2) Is there a way we could make the clamp not require motorization (because motors are heavy and draw power)? For the motor that would be rotating our robot body upwards, would a window motor work on its own? Would two? Or would we have to have some intense gearing? We expect our robot will be around 100 pounds at the very least, weight is always an issue with our team. |
|
#2
|
|||||
|
|||||
|
Re: horizontal bar clamping device
Window motors would be hopeless unless you want to spend all day climbing the pyramid. You want to use a CIM with a really high gear ratio.
|
|
#3
|
|||||
|
|||||
|
Re: horizontal bar clamping device
Preventing the clamp from rotating on the horizontal bar would be very difficult in my opinion. Especially without damaging the finish of the bar.
Here is a different idea: what if your clamp were to clamp onto the bar and the robot were to spin sideways, in the plane of the pyramid's face? If the clamp were several inches wide and had a soft grippy foam surface, it might not spin around The axis but lift the robot into the air, kind of like what team 33 did in 2010 breakaway. |
|
#4
|
||||
|
||||
|
Re: horizontal bar clamping device
Also you will have to be able to remove the clamp unpowered.
|
|
#5
|
|||||
|
|||||
|
Re: horizontal bar clamping device
Think monkey wrench
|
|
#6
|
|||
|
|||
|
Re: horizontal bar clamping device
Quote:
Hm. Definitely something to prototype. Thanks! |
|
#7
|
|||
|
|||
|
Re: horizontal bar clamping device
Quote:
![]() |
|
#8
|
||||
|
||||
|
Re: horizontal bar clamping device
Grabbing a corner gusset may be better than grabbing a rung. Also, think bear trap for your clamps if you don't want to use motors.
|
![]() |
| Thread Tools | |
| Display Modes | Rate This Thread |
|
|