SainSmart 6-Axis Mechanical Desktop Robotic Arm, Frame & Servo Kit for Arduino

No video with product as advertised. Was never able to use robot arm.

Ordered this primarily to compare prepackaged servo assembly with stepper and hardware store home brew. Comes in a very tiny box, tightly packed, definitely NOT assembled, no controller (none shown in the product picture). Never found the assembly video promised in the product description. Assembled only by looking at the picture on Amazon for this item. All bolts are M3x8, really needs M3x5 for attaching servo horns. Locknuts will probably be needed, regular nuts supplied. Servos draw a LOT of power, you'll never get it to work without multiple amp supplies--I'm using OKI assemblies similar to 7805's, driven from a 12V 30 Amp box. I put the hi torque servos as the two used to bend the arm due to weight / torque requirements stressing the lower servos. Software discussed by previous reviewer appears to be R-Pi exclusively, haven't found any for Arduino. Writing my own at this point. This product is typical Sain Store (Chinese) quality -- buy at your own risk, expect shortcomings and quality (infant mortality) issues, and little / no Customer support. But if you get it to work and it lasts, you got a good price on it at least. On the plus side, it's a nice collection of servos, horns and hardware brackets....Sain seems to be using this link for both the (assembled 4 DOF) Arduino unit, and the (unassembled 6 DOF) R-Pi unit. The rotating Lexan base is not included, extra cost. Also, you'll need to either buy or make at least 3 servo cable extensions. Servo cables terminate with female, same as Arduino headers, so keep that in mind as well.

Bought this arm from Sainsmart along with the rotary base. All the parts are well made, and fit together well.The instructions, now that's another story. I added the remote and electronics, which I've yet to get working, but Sainsmart has been very responsive, and replaced the parts in question. Could have used better instructions, and it was a bear to find them; and they are not complete. A challenge, but there is other info on the web, so All OK. I'm happy with my choices.

I bought this for a science olympiad Competition. My daughter has experience with robotics and placed first in the state competition last year. I tell you this because she has experience. This robot comes without any instructions. You can find a crappy video on you tube which is not very helpful either. After looking for the manual on line you can purchase it for an additional $2. Really people? We spent $140 bucks and you can't include instructions, wow! This does NOT come with a controller or a receiver. So be prepared to spend more money...

came with tiny box and unassembled. Further, there is no assemble instruction. How can I build it?

There was no right angle bracket and even less customer service. The arm is difficult to assemble with very bad video. There was no packing slip and no inventory checklist. This is a bad product and I would never suggest it to anyone.

cet article semble correct mais il a été livré incomplet (manque deux supports de servos) ce qui empêche son exploitationle vendeur que j'ai contacté et qui m'a demandé des précisions n'a pas encore répondu ni envoyé les pièces manquantes. Je changerait ce commentaire en cas de réponse favorable et que j'aurai enfin pu le monter complètement .les plus de cet article :* 6 DOF* semble costaud* permet d'apprendre le fonctionnement d'un bras robotisé* interfaçage avec Arduino simple (commandes de servo)les moins :* manque notice de montage et la vidéo qui explique le montage, bien qu'intéressante et utile, contient quelques erreurs d'ordonnancement et de précision (pas utile de percer les supports, les trous sont taraudés, parfois il suffit d'inverser le sens de la vis)* de même, il faut d'abord placer les servos en position de repos avant de positionner les paliers (pas de notice) afin que le bras puisse se déployer correctement (les alimenter sans connecter le fil de commande)* coté alimentation, il faut prévoir une alimentation assez puissante - plusieurs ampères (ne pas alimenter les servos par l"Arduino !), mais, ici encore pas de noticebonus :vous pouvez utiliser ce petit script Arduino pour vérifier le bon fonctionnement du bras (encore une fois, attention à ne pas envoyer le servo en butée, vous risqueriez de l'abîmer sérieusement)ce script déplace le moyeu du servo selon la position d'un potentiomètre (les schéma sont légions sur Internet)#include <Servo.h>Servo myservo; // create servo object to control a servoint potpin = 0 ; // potar input pin numberint potval ; // pot value read on the physical pot, this is the angle the servo must takevoid setup() { myservo.attach(9); // attaches the servo on pin 9 Serial.begin (9600); // open serial port to send data to Arduino IDE}void loop() { potval = analogRead (potpin) ; potval = map ( potval, 0, 1023, 0 , 179) ; // pot value translated in angle from0 to 179 degree Serial.println (potval); // send pot value on the serial line, to be displayed by the Arduino IDE myservo.write(potval); // tell servo to go to position in variable 'potval' delay(100);}

Es handelt sich um eine Bewertung für 6-DOF-Arm. Die Servos sind zu schwach und können den Arm am Schultergelenk (zweiter von unten) nicht bewegen. Der gesamte Arm kippt und kann sich nicht aufrichten. Definitiver Fehlkauf. Die Idee ist nicht schlecht, scheitert aber an der Motorenleistung. Eine starke Überspannung der Servos (9V statt 6V) führte zu einer ruckeligen Bewegung, ist leider keine Lösung.

le produit livré n'est pas conforme à la photo : il n'y a pas de plateau support, et surtout pas de notice !ou brancher les servos ???

評価が悪かったので如何かと思いながら購入してみましたが　6軸組み立てて動かしたところまでの感想としては1万ちょっとでこれなら良いと思います。これから購入する方へのアドバイスは下記の通りです・M3のネジは付属だと長い場所も有るので短い物も用意したほうが良い。ワッシャーも・個体差かもしれませんが　サーボ(TOWER PRO SG996R)の偽物？の　内部ギアのガタが酷いのでアームがかなり揺れます。・ハンドは金属製で精度も良いですが　サーボの回転範囲を良く考えてから組み立てないとサーボのギアを割ります　実際割れました。・組立説明は要らない気もしますが　HPの動画ピンボケであまり意味が無いです。これを購入してそのまま何かに使うとは思えません　その観点から考えると星５でも良い気がしますが　サーボ2個の遊びが酷かったので星-1とします。

Arduinoは別売りで、回転土台は入ってない。別売りなのかどこにも売ってない・・・youtubeの組み立て動画は消去されて見えなくなっている。　これ買っちゃだめですね💦