thomascountz
Schweet!
Sorry about your desciption loss. On the plus side, this things looks STRONG! Pretty awesome!
Schweet!
Sorry about your desciption loss. On the plus side, this things looks STRONG! Pretty awesome!
Thanks. I went to lowe’s,
Thanks. I went to lowe’s, bought a sheet of acrylic, and had at it. My robots rarely have a plan, this one just kinda came out. Got any ideas for a home-mad gripper? I have a servo, but I can’t decide on a gripper design.
The world’s best motto: When all else fails, use a bigger hammer.
1 reply
I was trying to design my
I was trying to design my own gripper for a while, but I didn’t really get anywhere with that, I figured I should just buy one.
I was going to buy this one: http://mivasecure.abac.com/bpatton/merchant.mvc?Screen=PROD&Store_Code=RS&Product_Code=GKWS
or this one: http://www.robotstore.com/store/product.asp?pid=267&catid=1563
I prefer the one from Jameco’s RobotStore cause I already have 2 HS-311’s and it looks really sturdy.
Pretty cool looking arm!
Clear stuff adds to a project, good to see the parts working. I knew a guy here that cut his gripper out of a sheet of plastic, and cut the plastic at the pivot in such a way to form a rough gear. He used a CNC setup to cut the gripper with gear, and attached a servo to one side, as the other side turned with it.
Another gripper idea is to have spring loaded fingers, that are held out, then pull them towards each other with fishing line, threaded down the middle to a reeling in motor.
1 reply
gripper
Hmm… The srping loaded fishing line gripper would allow me to place the gripper’s motor farther down the arm. I think I’ll try a mix of the two with a spring loaded gripper kept in sink with gears and fishing line or steel cable actuating it from the base. Thanks for the input.
The world’s best motto: When all else fails, use a bigger hammer.
Gripper
Hi,
Very cool! I am just learning about all this… but one idea I had was using salad tongs. The other night one of my little guys at dinner was serving his salad and pretending he was a robot with the tongs. They are light metal, that you could cut down and then add some pads to. Sorry if that is a dumb idea. Just thought it might be something inexpensive that you could go off of.
Shawn
2 replies
padded tongs
My “local” Ikea sells those tongs with silicon pads already in place. They are used to turn over the meat in the frying pan. For example…
KONCIS
GRIPPER
Modeling a gripper, this can be done many different ways.
Some use the “generic wire plires with a draw idea”.this makes a good pincer but Personaly, I prefer to model after what is called “paralell pliers” which is a jewelers tool it uses two flatt bars with a crossing fulcrum “imagine a sissor jack lowering a car” with the jack attached to both the car and ground as the gripper ends. these type pliers are used in jewelery because the “pressure is evenly spreadout” and don’t scar the work.
You can google “paralell pliers” for a picture, this will easily accept a pressure sensor and a proximity sensor to aid in finding and not crushing objects too.
you may even take a look at my primitive mandable on my bugbot1 listed on the robots intro forum though it is modeled after a paralell it uses a draw instead of a crossing fulcrum.
2 replies
tongs
Sounds good to me.
The world’s best motto: When all else fails, use a bigger hammer.
parallel pliers
I thought about that, but I decided to use a regular old single fulcrum type on my first arm. Thanks for the input though, I didn’t know there were pliers like that. I think I’ll look into it.
The world’s best motto: When all else fails, use a bigger hammer.