Rsp Robot

PHG: I guess I'll have more in a hand at home, but if I have very clear what I will do with it.
-First cut the excess plastic behind the toes and build a palm-size.
-Cut the union also thumb finger and tilt inward to grasp objects with the original design is quite poor, I'm thinking of making a tilt adjustable system that can fix your position with a screw, so I can taste the position more effective.
-Then in hand mount two servos that I have and connect to the fingers (all the fingers except the index finger are connected to a mini 3kg sevo) and separate your index finger of 1.8 kg micro servo. (with this combination of two servos can grab objects, pointing and waving)
- And finally thin cords replace that bring some more elastic fingers, each finger so that its buffer will separate as an individual clutch can adapt to the irregular formai gripping objects (such as a drink)

Someone already put this hand servos but my modification is much more elegant ...

WOW.. Who knows where this will lead... These larger robot projects are fantastic..

Great R2D2 !
Do you control your robot and/or hand with the ARC or other software ?

I think you've confused that video is not mine, I found it on youtube, I meant that the modification of the hand that I will be more compact than the video, that is a simulation of hand size with two servos inside, taking advantage of fingers toy.
In any case I will use ez-b with ARC software for the entire project.
And incidentally demonstrate the possibilities of ez-b in a big robot.
Ah rgordon; luck with voltage regulators, I got on the circuit board fiberglass with homemade acid formula and black permanent marker for tracks, quite easy and effective.

If you are into making your own circuit boards here is a great find. You don't even have to use an etching tank! You print out your circuit design on a laser printer using a special paper they have developed. Then using a Toner Image Applicator, which is a heated roll laminator, the image is transferred to the copper board. Take the time to read through this info carefully. I got one recently and will be testing it out soon. I also got a miniature drill press that uses a dremel tool and ordered some micro drill bits to drill the component holes.
PC Board Fab in a Box



No etching tank needed

That's a good system for professional circuits, integrated circuit or circuits that are close together connections from each other.
Actually my system is very simple:
1 - components are marked on the plate with a pencil and then with a minibroca taldro with 1 or 1.5 mm.
2 - tracks are drawn with a black permanent marker better.
3-plate is inserted into a tray of homemade acid (hydrochloric acid 2partes to 20% purity, which is in stores cleaning, also known as "heavy water" and one part hydrogen peroxide to clean wounds ) eg 2 glasses of acid, and a glass of hydrogen peroxide)
4 - after a time the acid has been removed from the copper plate (
except the one under permanent marker lines)
Then clean the pen with alcohol (from wounds too) and you are ready.

Radio Shack still sells the circuit board making kits you speak of... I think. The thing I like about this new system is if you find a circuit board layout in a magazine or on a web site you can print it out and transfer it right on to your copper board and etch it just by wiping the etching solution on the board with a sponge. All taking only a few minutes. I will test it soon and let you know how it turns out.

Yep, you could basically narrow a.design from a picture. So are you planning on the hands to be for entertainment and not really hold anything

Mainly for entertainment, but that does not mean you can not grab anything, depends on the weight of the object, its shape, the position of the wrist, the rubber grip of your fingers will ride in the grip area and also of sevos the strength.
When you take it out, have no doubt that I will make some nice videos of their hands manipulating objects, but nothing concrete block or gym weights.

For the drive system with two motors utlizo dareway lowering vehicle, but the original wheels were discarded plastic, rubber and also those not clickable, are much better, with a diameter of 25 cm (9.8 inches) for use also in outdoor or urban areas.








The system original coupling between the wheel and the gearbox, had the shape of a star, this is cut and mounted on four large screws last gear.
I also use a hard plastic table (cutting in the kitchen) and manufactured a screw cutro adptacion between the gearbox and the wheel.

To prevent damage to the robot weight of the reducing gears, is used which traverses steel shaft and two wheels attached to cahsis aluminum, which avoids any torsion..
This easy axis is removed with a locking nut at each end. Besides the need to mount the L-shaped brackets between the gears and the chassis.

Small Project Update: The hand has been modified, two small servos move the fingers in a combination that lets you index finger pointing, waving or take very light weights.
Thin aluminum board, small screws and rope did the rest.
While working slowly and almost time for the robot, watch your projects and breakthroughs ez-b and marvel, and good luck to all the Dj revolution waiting!

Awesome project R2D2! I love the creative "hacks" on this forum...and well engineered/crafted hand too I might add

That hand is awesome! As well as your drive system! Nice manufacturing.

Good job rsp!

Thank you all! Here are some videos of the hand, need a good injection in my wallet to end the arms, but donations accepted, haha??.

I'm loving the hand, I plan to do similar on my big build when I eventually get to it. how strong is the grip on it?

@ RichMR2: the hand strength to grasp objects is small, you can grab box of cigarettes or objects of similar size and weight.
Although the servos have strength, fingers are of a plastic-like material rubber and these are twisted slightly, is rather to gesture that manipulation, greetings.

Now that's cool. Thanks R2D2 for the vid. Amazing stuff and very helpful. I'll be needing some of these ideas when I build the arms and claws on my B9. However it will be much less elaborate then your creation. All I'll need to do is open and close the claws and maybe even rotate them around. It's good to see how someone like you has done this.

Thanks again!
Dave