Posts by STRAW

    Thank You, for your answers!


    Robot stand did not move. I would feel it, when I was checking the mastering stripes.


    You're right, that's how it worked for me with other robots till now. But this case is much different and strange. Measured TCP moved by 1,5mm in X axis, but when I jog it according to Tool frame this offset gives me a huge error. Tool starts to move correctly, when I reduse the X offset almost to 0, like it was previous. It looks more like the robot starts to wrongly measure it's possition. Maybe the axies slipped a bit, but it still don't respond the answer "why it overrun the given distance". As I written in the topic, when I moved to joints's zeros by PR, the alignt looked ok. To be honest the gap between the stipes on each joint, greatly prevent from accurate examination.


    Hope it's not a mechanical damage. Is it hard to examine those harmonic reducers?

    Shouldn't this case give other symptoms like strange noises, shuttering during move?

    Dear Robot-Masters, I need Your help. I've got some unusual problem with LR Mate 200iD.

    After collision - force was put with 20mm offset from the 6th axis, parallel to it (robot tried to insert the workpiece into the socket with other workpiece in it) - robot was about 10 deg pitched, but after alarm reset it starts to move normally. Whet it tried to take another workpiece I realised that end effector has now about 1,5mm offset (angles are ok). I've measured TCP and UFs again. User Frames origin points moved 3-4mm in X and Y axies. UTool offset in X axis changed weirdly from 0.03mm to 1.5mm. When I tried to spin the tool, probe tip starts to make circles, so I put X offset back to 0.03mm, and it was again spins as it should.

    I've measured UFrames again with "properly" working TCP. There still was a 2-3mm difference to the previous settings. When I checked the extreme positions, I realised that they don't agree.

    Previously, when robot was working fine, measures of holes for dowels pins had an error of 0.05mm for distances and 0.1 deg for XY angle. Now it's about 0.5deg error, and what's more, 0.5mm error in X axis and 1.7mm in Y axis...

    I've made an experiment - I set 180mm on a calliper (with 0.01mm accuracy) and moved the robot along the calliper in X and Y axies. In both directions robot has a huge error. In X axis it was about 0.7mm but in Y axies end tip exceeds about 1.4mm...

    Have You any idea what should I do?
    I set PR to zeros in joints, and jog robot to it, but the mastering stripes on every axies seems to align well...

    Should I master it anyway?
    Jog the robot to home/perch position and retrive it from image or AOA?

    Should I make an image in zeros from Roboguide and retrive it from this image in zeros?

    Hello Mates,

    While waiting for robot to arrive I'm working at a new and I hope better method to set UTools and UFrames.

    I would like to use steel probe with sphere tip mounted in an end effector grip. Firstly I want to check in RG if my measure and calculate programs works well.

    Instead of setting on DI manually when tip reaches wall I'd like to use RG build in collision detection to set DI automatically but I can't see such option.

    Have you any idea if there is an option in RG to set specified DI while end effector or a part holded in it collide with "fixtures" or machine/machine links?

    Or maybe I have to go more around and set DCS areas in every hole/sphere with different DI when end effector DCS model will try to go out/get into the zone?