Posts by darkknight1499

You can check and change this by going to Menu>--Next-->System>Config.

The first option itself is for Hot Start.

Quote from R47

hi Darkknight1944,

This should work with Karel try:

LOAD('UD1:example.TP',1,status)

change "UD1" to your path "MD" or "UT1"...

Hii R47, I tried your method it worked very straight forward for me.👍🏻

I'm writing the whole code below so it is simpler if anybody look for it in future.

PROGRAM Auto_Load

BEGIN
LOAD('MC:FILE.TP', 1, 1)

END Auto_Load

Thanks hermann now it is clear.

Quote from Nation

EXT_LOAD isn't a karel built in. I would use LOAD. Also, you will need the file extension if you want to load something ('MC:\list.tp' for example).

I'm attaching the example code fanuc have given in manual.

The file list is supposed to be made in a .DT file.

Still the same error.

Quote from DS186

Read the message from the KTRANS window. Your code is missing a BEGIN statement after the line PROGRAM EXT_LOAD1.

I've tried that but then it gives another error. And the manual hasn't specified to use BEGIN in that code.

The referance for the code is available in manual (B-83274EN/02) "System Design Tool Operator's Manual" Chapter 5.

I'm attaching the screenshot so you guys can have a look at it and see if I'm missing any thing or doing something wrong.

hermann and DS186 , I still haven't been able to create the karel code to load the tp program. I even went to fanuc engineers for help but nothing worked out.

I'm still getting errors while creating the karel file.

I've attached the image of the error I'm getting and the code I've written.

I've tried the following code snippet but it didn't work.

Please guide me to correct the code.

EXT_LOAD(list_name)
[in] list_name : STRING

PROGRAM EXT_LOAD
EXT_LOAD(list_name)
[in] list_name : STRING
END EXT_LOAD

Hi,

I tried writing the karel code but it didn't compile and kept giving errors.

Can someone help me how to write the proper karel code for this.

Okay. Thanks for your help and suggestion.

Will definitely update you once I solve the problem and complete the project.

So this is CAD-to-Path in roboguide. The skipped lines are not the issue. As the shape of this part is very complex, I had to intentionally shorten the length of the lines I had drawn towards the bottom. Because towards the end the shape of the part is slightly straight and if the lines are exactly same as the shape of part it will start to over grind and destroy the part.

And also there are too many combinations of line, line length, line angle to try to get the perfect finishing on the part. If I do this method I have to manually set the distance on the belt and the angle for the lines to get proper finish on the part. And for the middle section of the part it is very tough, next to impossible because there can be soo many combinations of distance and angles I need to try before getting the desired finish.

That's why I finally gave up on this method and started exploring the CAM method.

Do you mean something like this??

For you to be able to access the dropdown you'll need to first add the part in the EOAT. Which you have already done. Then you'll need to add the part to a fixture or the machine where you need it to picked from or placed. Then you'll be able to see the options in the dropdown and moveTo the part.

Quote from seskotristan

I can't suggest anything that will work for sure, but you could try to contact RoboDK or Robotmaster (or any other OLP software retailer) and ask them how would they go at it.

You said that you cant get to all surfaces by programming with OLP... are u using 1 grinding tool or multiple?

My pleasure!

Regards

I have multiple tools. I have 6 grinding belts with different grits and different raidus on the wheels to reach all the areas on the part.

Thanks for your help. I really appreciate it.

Quote from seskotristan

Do tou need to grind the part from different sides? If I rephrase it.. do you need to regrip the part multiple times to get to all the surfaces? (In case of RTCP).

And also if you would create a G code program in NX or powermill and then use roboDK to make robot paths that would require a really precise model and robot.

What are you're required tolerances?

And I'd like to add that I'm in robotics for about a year so "don't hold for my words" if you know what I mean... just trying to help

No, I don't need to regrip the part to get all the surfaces.

The required tolerances are around 200 to 300 microns. And I have an accurate model and the robot's accuracy is 80 microns.

What method or procedure would you suggest to get this application done?

And thank you so much trying to help me.

Hii,

Due to a NDA I'm not able to share the image of the exact implant I have to work with. But I'm sharing image of the knee implants from google, the real one only have minute different in the size and curves.

We have Siemens NX and also Autodesk powermill is available to us.

We have to really grind the implant and not just the finishing.

pasted-from-clipboard.png

Hii,

Click on the restart button on the top of the teach pendant window or alternatively goto Menu bar> Cell > Cold Start Powered Up Controllers.

This should fix the error.

If you have an application like grinding or polishing where robot is holding the workpiece and the grinding wheel of surface is fixed and you need to create the path with CAD-to-Path then RTCP is used.

Hi Guys,

I'm new to the Robotic programming field and need help and guidence in how to do the programming for my task. I have a task of grinding a knee femoral using Fanuc Robot, I'm currently trying to achive the grinding profiles by doing CAD-to-Path in Fanuc's RoboGuide software as manually teaching the points with TP for such a complex shape is impossible. But with this technique I'm not able to achieve full coverage of the knee implant and in many places I have to try too many combinations of moving the CAD-to-Path lines and changing their angles. And we are not getting the desired output with this technique.

I recently found out that we can also perform CAM on the knee implant and get the G-Code from it and convert it to Robot code using software like RoboDK. But as I'm new to this field I have no idea how to do CAM, and that also on such a complicated shape like knee implant.

It would be really great if you guys could help me with this and give me guidence on what is the proper way of doing this application.

I'm also attaching the links of videos from youtube of knee implant grinding so you guys can get an idea of what I'm trying to achieve.

https://www.youtube.com/watch?v=htcfdkImCbU

https://www.youtube.com/watch?v=APaiA0uo5MY

https://www.youtube.com/watch?v=4GHAsiyU6Hs