Yet Another Hip Rotation Idea
Yet Another Hip Rotation Idea
by gdubb2
Fri Jan 19, 2007 7:43 pm
After my last bad attempt at hip rotation, This morning another idea came to me.
Instead of adding extra DOF to the legs, simple rotate servos 4 and 22 in the hips to point down instead of front to back, but DO NOT add the servos below to replicate the original hip movement. You would lose the ability to kick out the side, but could replicate that movement by rotating the leg 90 deg and kick straight.
What do you all think??? Has it been tried before??? Good..Bad.. Really Bad...I dunno..
Gary
Instead of adding extra DOF to the legs, simple rotate servos 4 and 22 in the hips to point down instead of front to back, but DO NOT add the servos below to replicate the original hip movement. You would lose the ability to kick out the side, but could replicate that movement by rotating the leg 90 deg and kick straight.
What do you all think??? Has it been tried before??? Good..Bad.. Really Bad...I dunno..
Gary
by hivemind
Fri Jan 19, 2007 10:24 pm
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet (ie: keep your keep stright on the ground while the body shifts left or right). This in turn means that you cannot shift your weight, and then furthermore will not be able to walk...
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
by hivemind
Fri Jan 19, 2007 10:27 pm
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet (ie: keep your keep stright on the ground while the body shifts left or right). This in turn means that you cannot shift your weight, and then furthermore will not be able to walk...
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
by hivemind
Fri Jan 19, 2007 10:32 pm
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet (ie: keep your keep stright on the ground while the body shifts left or right). This in turn means that you cannot shift your weight, and then furthermore will not be able to walk...
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
by hivemind
Fri Jan 19, 2007 10:36 pm
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet (ie: keep your keep stright on the ground while the body shifts left or right). This in turn means that you cannot shift your weight, and then furthermore will not be able to walk...
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
by hivemind
Fri Jan 19, 2007 10:37 pm
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet (ie: keep your keep stright on the ground while the body shifts left or right). This in turn means that you cannot shift your weight, and then furthermore will not be able to walk...
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
by hivemind
Fri Jan 19, 2007 11:09 pm
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet (ie: keep your keep stright on the ground while the body shifts left or right). This in turn means that you cannot shift your weight, and then furthermore will not be able to walk...
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
by hivemind
Fri Jan 19, 2007 11:09 pm
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet (ie: keep your keep stright on the ground while the body shifts left or right). This in turn means that you cannot shift your weight, and then furthermore will not be able to walk...
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
by hivemind
Fri Jan 19, 2007 11:10 pm
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet (ie: keep your keep stright on the ground while the body shifts left or right). This in turn means that you cannot shift your weight, and then furthermore will not be able to walk...
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
by hivemind
Fri Jan 19, 2007 11:13 pm
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet (ie: keep your keep stright on the ground while the body shifts left or right). This in turn means that you cannot shift your weight, and then furthermore will not be able to walk...
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
by hivemind
Fri Jan 19, 2007 11:18 pm
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet (ie: keep your keep stright on the ground while the body shifts left or right). This in turn means that you cannot shift your weight, and then furthermore will not be able to walk...
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
Although it sounds like a good idea at first, I do not think that it will work.
-sorry for the negative input, perhaps someone else will have something better to add!
-Hive
by DerekZahn
Sat Jan 20, 2007 1:50 am
You can delete your posts yourself if you want; I had to do it myself earlier.... it appears that there is an issue with robosavvy today.
And, while you're posting (heh), post some info about your amazing dx117-based bots which I saw on a differernt forum -- those are some of the most amazing looking bots outside of Japan!
And, while you're posting (heh), post some info about your amazing dx117-based bots which I saw on a differernt forum -- those are some of the most amazing looking bots outside of Japan!
by gdubb2
Sat Jan 20, 2007 2:07 am
Hi Hivemind,
I thought about this just after I made the original post. But then I thought about whether or not you could shift enough with just the foot servos. It's the same direction of movement.
Nine posts.. Hmmm a little negativity here...
I thought it was funny...
I may try this though. I think It could be done without much trouble at all. I have the brackets from the disaster, and the servo is already in place, just needs to be rotated..
Gary
Unfortunetly you would also lose the ability to tilt the upper body with respect to the feet
I thought about this just after I made the original post. But then I thought about whether or not you could shift enough with just the foot servos. It's the same direction of movement.
-sorry for the negative input, perhaps someone else will have something better to add!
Nine posts.. Hmmm a little negativity here...
I thought it was funny...
I may try this though. I think It could be done without much trouble at all. I have the brackets from the disaster, and the servo is already in place, just needs to be rotated..
Gary
by hivemind
Sat Jan 20, 2007 2:11 am
hmm, wont let me delete them, which is why I hope a moderator can fix this up, same thing appears to have happened in several other places... I could have sworn I didnt post this many times too! ack!
Anyway, DX-117's, yes, soon, not yet
-I suggest watching Tribotix for updates, ask questions there! I am trying to help out Peter Turner at Tribotix, so once some more people post there I will introduce the robots here and have a video up.
gdubb2- I was thinking again, and I think that doing this mod that you talk about would also remove the ability to do the cartwheels... at least to the same ability.. Your robot would need to rotate his legs first... It would be interesting.
I think that altogether having more torque in the legs would allow you to have both sets of servos. Maybe 3-4 kg.cm more and the robot would be set?
Anyway, DX-117's, yes, soon, not yet
-I suggest watching Tribotix for updates, ask questions there! I am trying to help out Peter Turner at Tribotix, so once some more people post there I will introduce the robots here and have a video up.
gdubb2- I was thinking again, and I think that doing this mod that you talk about would also remove the ability to do the cartwheels... at least to the same ability.. Your robot would need to rotate his legs first... It would be interesting.
I think that altogether having more torque in the legs would allow you to have both sets of servos. Maybe 3-4 kg.cm more and the robot would be set?