Extending & Trimming - why does this happen?

[Guitte]

Hi Guys,

 

When opening a drawing i was busy with a week ago and want to carry on. How does it happen that some of the lines doesn't want to trim or extend checking the Z-axis, the EDGEMODE put it to 0 and 1 also select trim/right click/project/none, everything good. Still doesn't trim. Im not sure if it might be if someone else is opening my drawing that settings might change somehow. Any advice?

 

Thanks.

[Guitte]

Think i know why this happens. The lines where i want to trim or extend to, is not on the z-axis set to 0. What blows my mind is that i cant figure out when going back to my previous drawings find that some of the lines are not set to 0 on the z-axis.

[steven-g]

The Z value shouldn't have any affect on the trim command, unless your UCS is altered. Can you post a drawing showing the lines that need to be trimmed and the lines that should be used to trim too. It could be that your UCS has changed for some reason.

[Guitte]

Hi Steven-g, I honestly hope i did the "share-link" right. Here is it. https://www.dropbox.com/s/eoqlt3huclodu2p/FP003-ShpDwg-Zone08.dwg?dl=0 Please tell me if you can access it.

 

Thanks.

[Tharwat]

Which lines that you can not trim and extend ?

You did not indicate to them in the attached drawing .

[Tharwat]

If you have the Express Tools installed on your system , just type flatten and select the lines then try to trim or extend .

[Guitte]

You can check any of the vertical steel posts (blue lines), some of them i did check that is where my previous "conclusion" post came from. Where the 2 posts meet there is a 30mm gap, that is where i found the problem.

[Guitte]

Seems Express Tools can only be used in 3ds Max, im using ACAD LT.

[steven-g]

I got the file, but where should we be looking ? I can't find a 30mm gap,

[steven-g]

The macro

^C^Cm;0,0;0,0,1E99;m;p;;0,0;0,0,-1E99;

will work in this case to bring all your geometry to Z=0. Though you need to be very careful when you use this macro as to the sort of objects that you select because sometimes it can have a negative effect on drawings. (You need to select the items before running the macro - and I would recommend always using it on a copy of your drawing, just to be safe).

[Guitte]

I'll try the Macro cautiously, thank you Steven-g. One last question, can it happen when someone else is using your drawing that it might change some settings on it?

[Guitte]

The Macro i copied and paste in the command line, telling me its an unknown command. Is there something else i need to do to make it work?

[Guitte]

Steven-g, i have tried the Macro out. Copy and paste it in the command line, tells me it an unknown command. Do i need to do something else to make it work?

[steven-g]

You have to run the macro from a toolpalette or create a new command in the CUI, if you want to drop it straight into the command line then you need to use the script version (NOTE there is a space after the word previous to accept the selection)

move
0,0
0,0,1E99
move
previous 
0,0
0,0,-1E99

[Guitte]

Jippy, at last i got it right how to create a macro...how do i know if it works?

[Tharwat]

Jippy, at last i got it right how to create a macro...how do i know if it works?

 

Try it on the objects that you could not have it working before to check it out

[steven-g]

Check the Z values before and after running the script of the objects you mentioned before that had the wrong Z values. Though as I mentioned before the Z value shouldn't effect how the trim/extend command works.

[Guitte]

Dear Steven, i have run the macro "^C^Cm;0,0;0,0,1E99;m;p;;0,0;0,0,-1E99;". Going to properties the start and end Z value is -1.0E+99 and Delta Value is 0. Trim still doesn't want to play along. My first attempt I have tried the toolpallete with your other macro

move

0,0

0,0,1E99

move

previous

0,0

0,0,-1E99

Not sure how to use it and cant paste it in the CUI command macro space.

[Guitte]

One of the lines i can move without using the move command and can only select one point. It cant trim or extend.

[steven-g]

which are the lines that won't trim or extend, can you post a screen shot or a marked up drawing, you're drawing has a lot of lines and I can't find where you mean