Search found 38 matches

by biscuit122
26 Feb 2020, 14:39
Forum: General questions
Topic: How to control Stewart parallel mechanism through force
Replies: 2
Views: 962

Re: How to control Stewart parallel mechanism through force

Hello, it is difficult to guess what you are trying to achieve. When using force control, you absolutely need some sort of feedback, otherwise you won't be able to do anything. I couldn't see any feedback in your scene. Maybe first try to control your robot's joints in position. Then switch to some...
by biscuit122
20 Feb 2020, 19:44
Forum: General questions
Topic: How to control Stewart parallel mechanism through force
Replies: 2
Views: 962

How to control Stewart parallel mechanism through force

I am gonna to control a Stewart parallel platform in force control mode using the function "sin". Here is my model in Vortex, which cannot operate normally in the last half cycle.
Could you help me find the problem?

Thanks.
by biscuit122
25 Oct 2019, 13:48
Forum: General questions
Topic: How to achieve this bending motion for a changeable curvature mechanism?
Replies: 1
Views: 265

How to achieve this bending motion for a changeable curvature mechanism?

https://drive.google.com/file/d/1lYcM_R ... sp=sharing

Do you guys know how to achieve this bending motion for a changeable curvature mechanism in the mentioned video?
by biscuit122
18 Oct 2019, 15:19
Forum: Feature requests
Topic: A request for chaging volume range of proximity sensor using API
Replies: 1
Views: 1583

A request for chaging volume range of proximity sensor using API

Can you add the function to change volume range of proximity sensor using API?

Looking forward to adopt this suggestion!
by biscuit122
24 Jul 2019, 20:18
Forum: Bug reports
Topic: requent no resonse lead to lost of .ttt file
Replies: 3
Views: 1805

Re: requent no resonse lead to lost of .ttt file

Hi,

My Vrep version is 3.6.2 64bit on windows 10 Home 64bit.

It happens much frequently these days when I save a file or after a while.
by biscuit122
16 Jul 2019, 20:09
Forum: Bug reports
Topic: requent no resonse lead to lost of .ttt file
Replies: 3
Views: 1805

requent no resonse lead to lost of .ttt file

Recently, it happened several times that the Vrep have no response when I save my scene. The app appeared static state so that I have to restart it. The file was broken and cannot be opened again!!! I lost my work !!!!! https://github.com/feig122/force_test/blob/master/mat6Wheels.ttt I hope somebody...
by biscuit122
14 Jul 2019, 16:55
Forum: General questions
Topic: Why doesn't my joint track the desired position?
Replies: 1
Views: 880

Re: Why doesn't my joint track the desired position?

Hi all,
I have solved this problem. It is resulted from the transformation between radian and degree unit. In LUA script, we should set the target position for revolute joint using radian unit instead of degree. Due to the copyright protection, I delete the .ttt model. Thanks.
by biscuit122
12 Jul 2019, 05:20
Forum: General questions
Topic: Why doesn't my joint track the desired position?
Replies: 1
Views: 880

Why doesn't my joint track the desired position?

In this scene, I used function sim.setJointTargetPosition to force hipJoint3 and hipJoint4 reaching desired position. But the final position does not equal the given value. So could you tell me how to solve it? Additionally, driveJoint1 , driveJoint2 , ..., and driveJoint6 reach their accurate targe...
by biscuit122
01 Feb 2019, 04:01
Forum: General questions
Topic: How to sent data to Vrep from Matlab
Replies: 0
Views: 1744

How to sent data to Vrep from Matlab

I have tried codes in Vrep side to receive data from Matlab in a Synchronous mode. function sysCall_init() s=0 lastReceivedFX=-1 lastReceivedPos=-1 end function sysCall_actuation() local packedFX=sim.getStringSignal('packedFX') if packedFX then sim.clearStringSignal('packedFX') packedFX=sim.unpackFl...
by biscuit122
02 Jan 2019, 22:44
Forum: General questions
Topic: An asynchronous non-blocking remote exchanging between Vrep and Matlab
Replies: 1
Views: 669

An asynchronous non-blocking remote exchanging between Vrep and Matlab

I have written low-level controller through Lua in Vrep and optimized APPs in Matlab to get optimal kinematic parameters. In this process, both Matlab and Vrep need to set string signals and get string signals between each other. The code in Matlab is shown as an example. packedFoot=vrep.simxPackFlo...