Thank you for putting this video together. I ran into a problem at the end and when I was putting in the motor screws, I had 6 longest screws and 6 almost longest/fat screws. Earlier in the video, I kept hearing, use "the longest screw". I think the longest screws are meant for the motors. This could be improved by sorting the screw lengths out at the beginning of the video. edit:Or you could add screw length subtitles.
Nice design, but there's a mechanical issue. Since the side (small) arm is fastened to the suspension arm using a screw (no swivel or ball joint), the arm (and its front hole) remains parallel to the side of the chassis as the suspension rocks. In contrast, the connection hole on the swing (differential) arm does NOT travel parallel to the side of the chassis during rocking; hole follows curved path toward chassis's center. As a result, a force is induced to bend the side arm inward. Therefore, a swiveling connection (e.g., ball joint) should be used at BOTH ends of the side arm.
Thank you for your suggestion. The design works very well for the size and use-case of the chassis. We do agree, it could be better, but our intent was to keep the cost low enough that we could reach a larger number of customers who have a desire to start learning about robots. If this were replicated at a larger scale we would consider heim joints or ball joints in the suggested locations.
Is there a detailed assembly diagram somewhere? The screws he describes using in this video sure don't seem like the right ones. For example he says to use the longest screws in holes that are much much bigger than the size of the screw, and it looks like the ones he's actually using in the video aren't the skinny long ones.
Hi, Mattia. We will soon be releasing an upcoming video on Arduino to Arduino RC episode of Control Issues video series. You could use this motor controller www.icstation.com/icstation-tb6612fng-dual-motor-driver-module-135v-p-3727.html. Or this one from SparkFun pretty much the same thing. www.sparkfun.com/products/9457 Both boards use the TB6612FNG chip. This instructable: www.instructables.com/id/Using-the-Sparkfun-Motor-Driver-1A-Dual-TB6612FNG-/ covers controller the TB6612FNG from an Arduino. If you have anymore questions feel free to contact our Tech Team tech@servocity.com.
Here are a couple of options we’ve shown before: www.instructables.com/id/Easy-Phone-Controlled-Rover/ www.instructables.com/id/Affordable-Phone-Controlled-Rover/ Please let us know should you have any additional questions tech@servocity.com.
Hello Qamarul, we have many kit options that may fit what you are looking for. Please follow the link to see the options available www.servocity.com/kits/robot-kits . Please let us know should you have any further questions.
+optimia92 Unfortunately, we do not have any files available at this time. If you need specific information please contact our Tech Team directly at tech@servocity.com. Thank you
Ok, now I know this video is wrong. He just said you have 2 of the second longest screws. NO, THE SCREWS YOU ONLY HAVE TWO OF ARE THE THIRD LONGEST! Edit - Later guy looks at 3 of the 6 motors attached to the legs and says "Each of the four motors". Was he drunk when he made this?
It's a skid-steer chassis which means that if the drive wheels on one side of the chassis are turning at a different rate than the other side, it'll cause the chassis to change direction. It's the same type steering that a tank, a front end loader or bulldozer would use. No differential is needed in this setup. Please let us know if you have any other questions tech@servocity.com.
Nice one. Great looking chassis.
Thank you for putting this video together.
I ran into a problem at the end and when I was putting in the motor screws, I had 6 longest screws and 6 almost longest/fat screws. Earlier in the video, I kept hearing, use "the longest screw". I think the longest screws are meant for the motors.
This could be improved by sorting the screw lengths out at the beginning of the video.
edit:Or you could add screw length subtitles.
+R Block Thank you for the feedback. We appreciate it and will get some annotations made to this instructional video.
Unfortunately I didn't see this soon enough :( . I just listened to the audio and didn't read annotations. Think I have it fixed up now.
Let us know if you need any assistance tech@servocity.com.
scienceexperments
Nice design, but there's a mechanical issue. Since the side (small) arm is fastened to the suspension arm using a screw (no swivel or ball joint), the arm (and its front hole) remains parallel to the side of the chassis as the suspension rocks. In contrast, the connection hole on the swing (differential) arm does NOT travel parallel to the side of the chassis during rocking; hole follows curved path toward chassis's center. As a result, a force is induced to bend the side arm inward. Therefore, a swiveling connection (e.g., ball joint) should be used at BOTH ends of the side arm.
Thank you for your suggestion. The design works very well for the size and use-case of the chassis. We do agree, it could be better, but our intent was to keep the cost low enough that we could reach a larger number of customers who have a desire to start learning about robots. If this were replicated at a larger scale we would consider heim joints or ball joints in the suggested locations.
only left speaker audio?
Is there a detailed assembly diagram somewhere?
The screws he describes using in this video sure don't seem like the right ones.
For example he says to use the longest screws in holes that are much much bigger than the size of the screw, and it looks like the ones he's actually using in the video aren't the skinny long ones.
Hi, Mattia. We will soon be releasing an upcoming video on Arduino to Arduino RC episode of Control Issues video series.
You could use this motor controller www.icstation.com/icstation-tb6612fng-dual-motor-driver-module-135v-p-3727.html. Or this one from SparkFun pretty much the same thing. www.sparkfun.com/products/9457
Both boards use the TB6612FNG chip. This instructable: www.instructables.com/id/Using-the-Sparkfun-Motor-Driver-1A-Dual-TB6612FNG-/ covers controller the TB6612FNG from an Arduino. If you have anymore questions feel free to contact our Tech Team tech@servocity.com.
what is the board that u used here which is connected to the mobile through bluetooth?what was that module?
Here are a couple of options we’ve shown before:
www.instructables.com/id/Easy-Phone-Controlled-Rover/
www.instructables.com/id/Affordable-Phone-Controlled-Rover/
Please let us know should you have any additional questions tech@servocity.com.
im looking bigger size of this robot 2 times than this size. is available??
Hello Qamarul, we have many kit options that may fit what you are looking for. Please follow the link to see the options available www.servocity.com/kits/robot-kits . Please let us know should you have any further questions.
How Will u turn the front wheel?
Thanks guys. So helpful.
Where to find sketches??
+optimia92 Unfortunately, we do not have any files available at this time. If you need specific information please contact our Tech Team directly at tech@servocity.com. Thank you
+ServoCity Thank you.
Where can I download sketch of Arduino for this project, please?
Mattia Gallo design your own
what is the best motor controller to use with this?
Please email our team at Tech@ServoCity.com and they can give you a list of options. Thank you
Ok, now I know this video is wrong. He just said you have 2 of the second longest screws.
NO, THE SCREWS YOU ONLY HAVE TWO OF ARE THE THIRD LONGEST!
Edit - Later guy looks at 3 of the 6 motors attached to the legs and says "Each of the four motors". Was he drunk when he made this?
please provide the design details of this bogie🙏
Hi Netha, I'm sorry but we are not able to provide files for the Runt Rover Kits.
Where is the differential?
It's a skid-steer chassis which means that if the drive wheels on one side of the chassis are turning at a different rate than the other side, it'll cause the chassis to change direction. It's the same type steering that a tank, a front end loader or bulldozer would use. No differential is needed in this setup. Please let us know if you have any other questions tech@servocity.com.
i wish i live in america and rip my currency