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LOUUP
12-03-2007, 04:49 PM
:???: 12/3/07
Dear Robotic Wizards,
Hello, I have question about robotic commands and robots. About 6 years ago, I wrote my “ROBOTIC ARM” command that are not too precise. After all, that is an area that I am not familiar with but I believe that is a very fascinating subject. I am not too smart when it comes to what robots are able to do or what it takes to program a robot.
Robotic commands!
An octagon shape (unless you don’t think so!) would be completely easier for the “J” shaped entity to corner on as it pulls the “QT” to its original position. (Home base)
It has no obstacles to maneuver around on its way to its final predetermined destination. Once there, the “J” shaped entity grabs the desired object (QT) and returns to the original location or its starting point. During that process, the desired object the (QT) maintains a constant resistance force of eight
(8) Pound pressure on the “J” shaped entity as it pulls the desired object to its original position (home base.)
The threads as well as gears that presumably fit into the equation, they are up to you as whatever design on this portion of the “QT.” Allowing the contraption to extend along with the individual pieces to rotate is very important. The device does NOT need to sense the load before making the connection.
The “J” shaped entity should be flexible enough to gather the load completely and there needs to be a locking device similar to the snap end (“S” hook) of a dog leash. NO, the load is NOT fragile? The materials of construction - SS, Copper, Brass, Aluminum, Nylon, Teflon - all acceptable for components of the assembly. All the materials that I listed are perfectly and easily handled, as they meet my needs. Yes, a 12-volt power source is readily and easily available!
1. On the telescoping section have it 6 individual pieces that extend individually.
2. Its base piece doesn’t extend but it does have threads on its interior walls.
3. The 3 remaining pieces have threads on their exterior walls. These threads have the same design as a machine screw or bolt. They also have an angle on their bottom so when fully extended they are able to turn 90 degrees. Or there is a rotating gear at the base of the shaft that forces them to turn 90 degrees when it is fully extended.
4. The first telescoping (“ROBOTIC ARM”) piece extends forward toward the front approximately 16” then turns left, 45 degrees extends approximately 6”, then moves straight across approximately 16”. Then turns left, 45 degrees extends approximately 6”, then approximately 16” or more as the final destination is roughly that far away.
5. I know that these instructions will be accomplished by a “ROBOTIC ARM” but these are just a description of what task accomplish. I have pictures, not included, but they are roughly the direction that the “ROBOTIC ARM” travels along its mission.
6. The final extending piece doesn’t turn in either direction but having this piece is of utmost priority in my project work. Its length is needed to reach the “J” shaped entity securely as it grabs the desired object or “QT.”
7. The other 3 pieces of the extending telescoping piece are put in motion by 3 different compressed springs. There is a single spring for the 3 different round pieces of the extending telescoping piece.
8. The same process continues until the 3 pieces are fully extended. Therefore, from that position, the “J” shaped entity grabs the desired object or “QT.”
9. For the returning effect, it could involve a 12-volt motor as that power could be easily supplied, if needed.
10. The springs that extend the extending telescoping pieces are their exact size, within .1” difference in diameter.
11. There could be a gear affixed to each telescoping piece or spring. Because of that gear, it acts as a turning motion as the spring extends.
12. The largest telescoping piece is a very crucial piece, as all the other pieces of this contraption are housed in it.
13. Another extremely crucial part is the “J” shaped entity or grabber. It needs to be attached to the smallest telescoping piece and grab it precisely in the correct position.
Just to fill you in, I need to this contraption as I have a very weak left arm from a motorcycle accident quite a few years ago. If you have any questions about either my contraption or the accident don’t hesitate in asking me for some answers.
Are able to tell me who might be able to assist me with their expertise in this subject matter? Or do you know of a contact for me to try? I would like to communicate, as soon as possible!
Thank you for allowing me to interrupt your busy time at work to answer my questions. Do have a very good day! Sincerely, Louie
Carpe Diem or Seize the Day!
I want to pursue my many projects, to help me realize that quite a few of my dreams will come true, as I DON’T INTEND on becoming a vegetable!

HarryBotter
12-05-2007, 02:46 PM
Hi Louie,

I''m not really sure what you're asking. I'm also having a tough time visualizing what you are trying to build here. Can you put up any pictures? You've generally suggested that the arm is to be a substitute for your weak left arm but have given no indication what you would like it to do.

I've never built a robotic arm myself but may be able to help with some general principles if that would be of use.

Harry