Hello Heathkit Hero, and welcome.

I too have been interested in the arm, so I did some Google searching and believe it is manufactured by Dagu and/or Arexx. As for whether the version on this site has the base/control board or not is still unknown to me... but I almost believe not as the price here is much cheaper then elseware (and while the base may be nice, the control board is superfluous as we have the EZ-B )

As for strength... based on reviews I have seen, the stock servos (particularly at the base/shoulder end) may not be strong enough for even the arms own weight... but stronger servos should resolve that.

I am waffling between purchasing one myself... or just a bunch of servos and making my own arm... I came across some servo brackets www.servocity.com that I think would make supporting arm segments a bit simpler/stronger.

Hope this helps... and hoping someone else on this site has had "hands on" experience with the available arm so we both can get more info.

Gunner

I would love to see a video of one of these working as well. Very cool Heathkit by way.

Wow Gunner, that is a great image of that thing. And those servo brackets are awesome. I just ordered an RS232 serial interface for the hero, and a RAM and ROM upgrade from the guy who bought out all rights and parts to the original line of Heathkit robots. He said he is familiar with EZ Robot and has hears some good things about them, I think the EZPCB will be a great addition, and I will be able to keep all of the original electronics in the robot, as well as integrate new sensors and Arm without gutting the whole thing and starting from scratch. Jer361 I found a video of that arm with a sensor mounted to it tracking a guy's hand, now I have been looking for it half the day and cannot find it.. Still looking though!

I'll make a video for you It'll take about a week

Hi Dj,

Can different Servos be placed in that arm? I do not know much about them, but would it be possible to buy the hardware kit and install some heavy duty bearing type servos into it? It looks like a great arm, and If I could just get it to pick up a 200-300 grams reliably that would be the deal maker.

Check this out, I found the video (Is this the same one?)

The servos on the EZ-Robot Arm are replaced with S06NF (which are metal ball bearing)

Servo Details: http://www.robotshop.com/s06nf-std-servo-motor-2.html

That is the same arm - but I do not sell it with the base. The base is neat, but not worth the extra money because it will be put on robots. Or if it is to be used on a table, there are alternatives to mount the arm and save money. The base also would come with a microcontroller - which would be replaced with the EZ-B anyway.

That video is pretty bad - it is using the IR array for tracking. There are 5 (or so) IR transmitter and receivers - much how the Sharp IR Distance Sensor works (but there are 5 of them). The idea is it compares the strength of each receiver to determine the direction.

You would experience amazing results by using the EZ-Robot Camera instead - however, I would not mount the camera on the robot arm. I'd put the camera on the robot, as usual. And use the servo Relative Position option.

Ok, Im sold. I will place an order early Monday and give everyone a report when it comes in... I will test it using a Rabbitcore 2000 microprocessor and then I will purchase the EZ-PCB

I bought the robotic arm and love it. Very easy to use. It seems very well made and well thought-out. I was expecting plastic for that price and once again was pleasantly surprised. Here's the most important parts of the script that makes it pick up a lid and gently place it on a bottle. With the servo speed controls you can make positioning fast but slow to place objects.

I used Goop glue to glue the shoulder of the arm into the tank and it's very firm. Not sure how I'm going to get it out of there in the future.

I took the case off the wireless camera to reduce weight as it's mounted near the claw.

#Servospeed 0 is the fastest (which may be the cause of occasional brownouts)
ServoSpeed (d7, 0)
ServoSpeed (d2, 0)
ServoSpeed (d3, 0)
ServoSpeed (d4, 0)
ServoSpeed (d5, 0)
ServoSpeed (d6, 0)
#park arm:
$t=200
servo(d7,50)
sleep($t)
servo(d2,13)
sleep($t)
servo(d3,1)
sleep($t)
servo(d4,97)
sleep($t)
servo(d5,1)
sleep($t)
servo(d6,50)
sleep($t)
sleep(500)




# arm up
servo(d7,50)
sleep($t)
servo(d2,50)
sleep($t)
servo(d3,50)
sleep($t)
servo(d4,50)
sleep($t)
servo(d5,1)
sleep($t)
# below closes claw
servo(d6,80)
sleep($t)
sleep(500)


#Grab Lid
# below Opens claw
servo(d6,50)
sleep($t)
servo(d7,50)
sleep($t)
servo(d2,67)
sleep($t)
$t=500
servo(d3,14)
sleep($t)
servo(d4,69)
sleep($t)
# Slows the final movements just prior to approaching the lid to prevent it from overshooting or bumping into it's object.
ServoSpeed (d7, 5)
ServoSpeed (d2, 5)
ServoSpeed (d3, 5)
ServoSpeed (d4, 5)
ServoSpeed (d5, 5)
ServoSpeed (d6, 5)
servo(d5,1)
sleep($t)
servo(d6,87)
sleep($t)
sleep(500)

Bill