Questions tagged [design]
Mechanical, electronic or programmatic design of a robot.
147
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Proper robotic competitions for one university team (first step) [closed]
I am Bioengineering student at one Iranian middle-rank university and have a small business in building some easy medical devices (PCB and CAD designing with Programming and some market experiments). ...
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Increasing suction force
I'm trying to increase the suction force of the end effector in a pick and place system. Is it a good idea to add an extra vacuum pump and put it in parallel? AFAIK, having an extra pump in parallel ...
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How is a shear pad of remote compliance device formed?
I am researching on mechanical design of remote compliance devices (RCC)†. In the RCC, manufactured by ATI, they use shear pads for lateral compliance. They mention that shear pads are ...
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Mechanism to oscillate a human leg? [closed]
I'm working on creating a robotic device capable of oscillating an adult human leg using the knee as pivot, being able to constrain the amplitude of oscillation by controlling the mechanism with a ...
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555
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Recommendation for 3D mechanism modeling and simulation software
I'm working on a robotic hand and I would like to simulate different joints and tendon insertion points before starting to actually build it.
I've been googling and found things like Solidworks and ...
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Heavy omnidirectional platform suspension
I'm planning to build an omnidirectional platform that will support about 180kg robotic arm. The platform will be equipped in meccanum wheels. I would like to have some kind of suspension to avoid ...
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Sphero's logic, how does it work
I'm willing to make my first robot, and I'd like to make one similar to the Sphero.
I know I have to add 2 motors in it, and make it work as a hamster ball, but I don't understand how I can make it ...
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What are the calculations for a badminton robot and mechanisms?
I am designing a badminton robot but i am very confused about mechanisms needed for a badminton robot and various calculations needed for millisecond response.I am also confused about calculations ...
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Why aren't more bipedal (or even quadruped) robots made with joints/articulations similar with those found on atmospheric deep dive suits?
The sole reason I'm making this question is due to the fact that such joints/articulations would allow the electric motors to continuously move while the walking motion is performed, instead of the ...
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Create 2 CAD files
I found CAD files for the Create on the ROS TurleBot download page (.zip),
and shells on the gazebo sim page.
Any ideas where the files for the Create 2 could be found?
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Design a robot that can apply hot glue to paper
I need to automate a process that involves applying hot glue to paper. I own a standard handheld hot glue gun, like this one:
Sticks of room-temperature glue are fed in the right side. Pulling the ...
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2
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Permanent Magnet DC Motor Calcuations
I have to determine speed and torque suitable for my combat robot.
I've done some calculations and I need to know whether they're right or not (because they don't seem to be right).
Suppose I have ...
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What is the cheapest way to detect and identify vehicles entering a gate in real time?
I want to detect and identify each of the vehicles passing through a gate.
I have the live video feed of the gate which I initially thought to process and detect the number plates with the help of ...
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1
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Mechanical design for base of robotic arm [closed]
I am using DC motors to build a robotic arm. I want to make the base shoulder (which rotates and lifts) more stable and stronger. How should I design this using DC motors?
Also I would like to put ...
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2
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What is the cheapest way to make led sensitive to sound around?
There is always a way to do this using arduino, rasberry pi etc. However, in many cases in discussion in forums i've come across things where whole 'logic' can be uploaded to $0.50 chip. Instead of $...
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Light weight one axis hinge name/recommendation
I'm attempting to build a crow that can stay upright even when its perch tilts. For that I need to have some single axis hinges (not u-joints). I'm using 3mm rod for my internal supports and am ...
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How to design a representative drive cycle based on speed, acceleration, and torque requirements?
I recently came across the topic of "drive cycle design". I would like to learn more about this as I delve into motor and RC vehicle design.
Given: the RC vehicle must achieve 25mph max/...
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How to calculate DH parameters for Higher Pair?
I am trying to build a robot which is having Bevel Gears connecting two links. I want to calculate DH parameters, but i am stuck with this bevel gear as when the joint rotates both angle and ...
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153
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What is the best to track an object and its relative position in field?
I understand this is very conceptual. I am working on a system when I am trying to track the path taken by an object as it moves across a field. Imagine a maze built on roughly the size of a football ...
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How to design a robot chassis so as to avoid bending issues?
I'm good on the programming, control systems and electronics aspect of robotics, but need help with a problem with mechanical design.
How do I avoid bending of my chassis due to weight?
It is a 2 ...
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122
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Compensator design
I got a plant $G(s)=\left(0.13s+1\right)/s^2$ to design a compensator which provides below demands:
Settling time : max 2s
Overshoot : max %35
Gain margin : min 10 dB
Phase margin : min 30 deg
...
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How should I create a Pangolin (Armadillo) structure?
I am new to this forum. I want to create a mechanical structure as depicted in the image A pangolin bag. And further wouls like to automate the closing and opening of the bag. But I am facing issues ...
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Ontology/marketplace of robotics components and integration environment (BPEL or CAD for robotics)?
It should be possible to take the formal description of robotics components (in form of ontology, formal API descriptions or other kind of formal specification of the capabilities and requirements of ...
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Considerations to design actuators, and loop feedback systems, for a robotic arm [closed]
Let's say I have an industrial sized 6DOF robotic arm. I want to control each one of the six joints despite the non-linearity produced by the chain structure, the gravity and the weight of the loads ...
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Is Venetian mirror possible in Autodesk Inventor? [closed]
I see there are things like glass and mirror in Autodesk Inventor Professional 2016 but is there a possibility to have Venetian mirror? So that from one side it would look like a mirror and from the ...
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differences between SCARA arm design
I am currently interested in SCARA arm designs and I have few, beginner questions for which I didn't find answers yet.
1/ While comparing professional arms (made by epson, staubli...) I noticed that ...
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108
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How can I control fast real time sensor (250Hz) with slow system display(60Hz)
We do some experiments of real time representation of sensor position on TV. In this experiments, we used sensors for collect real time position in 3D at 250Hz and TV for Display the sensor position ...
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What factors should i consider when selecting a motor for a free wheeled cart-pole balancing robot?
I'm developing a small scale cart-pole balancing robot consisting of two wheels driven by a single motor at the base (essentially like a unicycle, but with two wheels to constrain balance to a one ...
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416
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Programable Drone with robotic arm and hand?
I was just wondering if it was possible to buy or build a programmable drone with a robotic arm,hand, knife.
I want to program a drone to harvest crops.
-object recognition from live video stream to ...
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Lifting Robot To Lift Small Crates [closed]
I am trying to design a robot to lift tote-crates and transport them around in a localized area. I want to be able to carry 3 tote-creates at a time. This robot needs to be able to pickup the creates....
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Emulation of an Orrery
Orrery is a clockwork model of the solar system. I am trying to emulate one in 2D. Now, to emulate, I need to know what goes on inside. Can someone please explain the basic principle behind the ...
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Force calculation for robotic arm
I built a robotic arm that consists of 3 MG 996R servo motor and 3 MG 90S servo motor. How to calculate the amount of load it can lift? Can anyone out there help me regarding this? I need step by step ...
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What joint combination gives you an 6 DoF workspace?
If you want to have a 6 DoF workspace of your end-effector you need 6 joints.
But how exactly do the joints have to be ordered?
For instance:
A robot with 6 revolute joints where all the rotation ...
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1
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102
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How can the ROS 2 TurtleSim turtle icon be changed?
In the turtlesim program used in many ROS 2 tutorials, there is a turtle icon that can be controlled. I would like to change this icon to be a different image that I have been provided, so that when I ...
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Can the human body distribution of load and effort on the lower body be directly translated to bipedal robots?
So, I couldn't find the actual source for this affirmation, but I read somewhere some time ago that the lower part of the human body has to be 3 times stronger than the top half; and that's why you ...
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SCARA robot configuration subtype (first axis vertical)
I'm working on a project where I need a SCARA where the first axis is the linear / vertical one (as often seen in hobbyist configurations). Something like this:
https://www.igus.eu/product/21104?C=DE&...
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How to add precise amounts of ingredients in my beverage making robot? [closed]
I am currently in the process of making a robot that can make a cup of tea, when It receives the command to do so. The general idea is as follows:
checks if saucepan is placed
checks if milk is ...
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0
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170
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I would like to add a prismatic joint to the Z axis of the 6th joint of Urdf
I have a urdf file,urdf of UR5 robot and added a prismatic joint to the end of 6th joint of the robot with the "prismatic_joint" tag (By copying other joints and links)
...
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217
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5 bar linkage hand exoskeleton
I have a project to design a hand exoskeleton for hand rehabilitation. The problem is that i'm thinked I only need the linkage mechanism with multiple 4 bar linkages. But because of human fingers ...
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236
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Natural frequency of robot arm
I want to design a 3 DOF pick and place robotic arm. I've accomplished stress analysis. now i'm going to do frequency analysis. software give me natural frequencies in different configurations. but i ...
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152
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Differential Drive Tricycle WMR with active caster wheel
I'm doing some research for my university project and in particular it concerns a functional design project. I thought it would have been possible to design a 3-wheel mobile robot with an active ...
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router tilting mechanism
I am trying to design a very rigid tilting mechanism for my router. For this purpose I had a look at table saws, which seem to be supported by 2 mechanisms, one in front, one at the back, called "...
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2
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2k
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Line follower robot with 2 or 4 motors?
I am developing a line follower robot and I am not sure about how many motors should I use: two or four. I'm thinking of using four, but I do not know if it's worth it (it will let the car be heavier, ...
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What modelling tools are available to design a robot [closed]
I am planning to build a robot.
1) What free or low cost robot modelling tools exist.
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Artificial Intelligence Software Packages: Professionals, University education is oft' a step behind. What's actually being used? [closed]
Currently using Windows 8, what software packages for artificial intelligence programming (robotics branch) are used in today's professional environment as standard. Lots of internet suggestions, but ...
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Why can't motors be as elegant as human muscles? Why do we have to use electromagnetism to create movement?
Pretty much as the title says. Why isn't it possible to build motors as microscopically and simply as they're built in humans? Why can't we recreate electronic nerves and muscles?
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how do i select light-weight 6dof robot?
I plan to do some scientific research, after modeling and path planning for the robot, The algorithm outputs the Joint control torque(or Joint variable), and then i want to input this result to the ...
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