4 votes
Accepted

Is it better to use software or hardware for object sorting?

It really depends on the objects you are sorting, and the flexibility you're looking for as the system is maintained over the years. Using physical methods to sort is very reliable. Many times you ...
SteveO's user avatar
  • 4,386
4 votes
Accepted

What's the term for 2 Dimensional tracks similar to the ones used on 3D printers?

That is called a gantry robot.
SteveO's user avatar
  • 4,386
4 votes
Accepted

ROS for an autonomous boat

ROS will work fine for this task. It will add some additional overhead for your Raspberry Pi but it is fairly small provided you only install the Robotic or Base configuration instead of the Full ...
Joshua Whitley's user avatar
3 votes

Two exclusive inputs control

The system is nonlinear for acceleration. If the desired acceleration value is bigger than 0, use the throttle, if smaller than 0, use the break. Other than that, you should be fine using a cascaded ...
Bending Unit 22's user avatar
3 votes

Is it a bad-design decision to implement high number of moving parts in an automation-robot?

Tough to say without knowing much about the project. More parts = more problems or potential points of failure. A simple design is typically better in that there are less things that can go wrong. If ...
user241585's user avatar
3 votes
Accepted

How to create a model for temperature control?

Generally you would only develop a model if (as in your case), you have something that you want to control. In that case, you should start by: List the outputs that you want to control. List the ...
Chuck's user avatar
  • 16k
3 votes

Is it better to use software or hardware for object sorting?

You would have to do both. It's very very challenging to move an object without using hardware, and it's incredibly hard to see the colour of a brick with hardware. You'd have to break it down into ...
Josh's user avatar
  • 141
2 votes
Accepted

Auto Stabilising Flight

1- it would be better if you use a 9 DOF IMU (gyro, accelerometer, compass) and fuse the data to get a better estimate of the state of your model airplane 2- Then I would suggest that you study what ...
AL-ROBOT's user avatar
  • 319
2 votes

Is it a bad-design decision to implement high number of moving parts in an automation-robot?

Simplicity is the greatest sophistication. Keep the design simple to understand, implement, debug, and maintain. Do not have too many moving parts. First, start with a simple design and build more ...
Ashwin Pajankar's user avatar
2 votes

Is it a bad-design decision to implement high number of moving parts in an automation-robot?

“Art is the elimination of the unnecessary.” - Pablo Picasso Many designs can meet the requirements you set. To prove it works is one phase. To optimize is another. What optimize means depends on ...
daemondave's user avatar
2 votes

How does a personal tracking tripod work?

Soloshot 2 At the beginning of a session the tag must be collocated with the pan-tilt unit (held over the camera). There is only a GPS receiver in the tag and none on the pan-tilt unit. The system ...
2 votes

Robotic Arm Inverse Kinematic Algorithm

You've got six axes, and you're using potentiometers, so analog outputs there, but let's assume you're reading them with an 8-bit encoder, which is really not enough resolution to do anything ...
Chuck's user avatar
  • 16k
2 votes

I need to make something that can slam something into something else really fast in both directions

A scotch yolk will do what I'm trying to accomplish.
bgavin's user avatar
  • 21
2 votes

ROS for an autonomous boat

For an autonomous boat, you might want to look into MOOS-IVP: http://oceanai.mit.edu/moos-ivp/pmwiki/pmwiki.php?n=Main.HomePageFull. It is similar to ROS in many respects, but geared towards ...
Ben's user avatar
  • 5,825
1 vote

Error while building using colon - colcon build --symlink-install --cmake-args

I believe this can happen when there are multiple Python interpreters on a system. I've seen this before with Anaconda users. Here's an issue filed previously with this exact error: https://github.com/...
cottsay's user avatar
  • 96
1 vote

Looking for resources regarding conveyor object allignment / object orientation

The best option will be to use Google Scholar(direct link) about item orientation on conveyer belts. General TIP If "normal" Google doesn't return your results, try it via scholar.google....
Max N's user avatar
  • 11
1 vote

How To Do path planning To move the Robotic Arm in straight line in 3D where the arm is having base, Shoulder, Elbow & wrist?

You need inverse kinematics. Which refers to calculating the joint angles so that the robot will reach a particular pose. You can not simply move from point A to point B.. You will need to use ...
Robert Sutton's user avatar
1 vote

Avoid to hit corners on diagonal steps using A* algorithm

ROS's costmap_2d allows you to inflate obstacles. Typically, you inflate obstacles by at least half of the robot's width. For example: Inflated obstacles in light grey. New path in blue. ...
Ben's user avatar
  • 5,825
1 vote
Accepted

Avoid to hit corners on diagonal steps using A* algorithm

The simplest solution is not to allow your A* program to make diagonal steps.
holmeski's user avatar
  • 1,853
1 vote

Could a hot air balloon be powered from the ground like a drone?

The other option would be a laser. The baloon could reach migher altitudes without the corresponding increase in wire weight. Of course, it would need some means of holding position. Which it might ...
Klaws's user avatar
  • 111
1 vote

What's the term for 2 Dimensional tracks similar to the ones used on 3D printers?

Your picture is of linear bearings on what looks to me to be stainless steel shafting. You can also use guide rails, which use a more specialized shaft than just a rod.
Chuck's user avatar
  • 16k
1 vote

What's the term for 2 Dimensional tracks similar to the ones used on 3D printers?

By the word "tracks" I would assume you meant the guide rails on which the 3D printers extruder is placed on.The rods which support the movement of the extruder are smooth linear shafts. They are ...
Pradeep BV's user avatar
1 vote

Autonomous vessel general design

AutoNaut Limited in the UK Chichester have been developing a vessel similar to your ideas, it might be worth getting in touch with them.
David Brown's user avatar
1 vote

ROS for an autonomous boat

What you are looking to produce is certainly achievable using the ROS middleware. As Joshua has already pointed out, there will be some additional overhead but this should be relatively small. It is ...
sempaiscuba's user avatar
  • 1,054
1 vote
Accepted

How does a personal tracking tripod work?

On the page you provided (https://soloshot.com/#features-lightbox), the technical characteristics for the tag indicate (the tag is what you need to have on you for the camera to follow you): SS Link: ...
Olivier's user avatar
  • 126
1 vote

How to create a model for temperature control?

Chuck is right; you need to build a model so that you can appropriately choose your controller. Temperature control is non-trivial because the underlying dynamics are non-linear. Because heat ...
JSycamore's user avatar
  • 926
1 vote
Accepted

Which mechanical device could repeatedly present an ID tag to a card-reader

I'd go for a linear axis. The cheapest version could be from a printer or you buy a small belt and two gears. A brushless DC would however fit better in this scenario. Such systems are easily faster ...
FooTheBar's user avatar
  • 1,355
1 vote

Is there a .NET library for conveyor belt automation?

Software for industrial automation is somewhat different then "general purpose" software. Your software controlling the conveyor belts will have to interact with the conveyor belts. This is through ...
50k4's user avatar
  • 6,652
1 vote

Automatic sliding window shutter

"Leaving out friction I need a motor with about 0.02 Nm [of torque] and [a rated speed of] 33 rpm." No offense, but verifying your numbers based on your spec's: window width 1.4 m sliding ...
Chuck's user avatar
  • 16k
1 vote

Need an idea: automated sim card switcher

You are hoping to make a jukebox for SIM cards. If you can place a reasonable cap on the size of your magazine (say 50) I would use a carousel with the cards attached to the outer perifery. You ...
KalleMP's user avatar
  • 113

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