Combination of trim, extend, and lengthen
Combination of trim, extend, and lengthen
(OP)
I find that I use the trim, extend, and dynamic lengthen commands a lot in my daily routines. 'Trim' is a command that is used by many other cad packages that includes 'extend' and 'lengthen'. Is there a way to combine these three commands so that one button will -
1. Trim a line from an object.
2. Trim a line to an object.
3. And trim a line to an apparent intersection of oject and itself? Any help would be appreciated.
1. Trim a line from an object.
2. Trim a line to an object.
3. And trim a line to an apparent intersection of oject and itself? Any help would be appreciated.





RE: Combination of trim, extend, and lengthen
if everyone helps everybody the world will be a better place
RE: Combination of trim, extend, and lengthen
RE: Combination of trim, extend, and lengthen
like right now i believe in acad 2ki and up trim and extend are 1 command you just press shift depending on which one u started to get the other
if everyone helps everybody the world will be a better place
RE: Combination of trim, extend, and lengthen
Currently I am running ACAD LT 2k and the trim command will not extend a line to another. I want to enter the command, and chose the target line, then chose the object line, and ACAD should extend if it doesn't intersect, trim if it does, and trim or extend to an apparent intersection if the two lines don't intersect already. This would be a great time saver.
RE: Combination of trim, extend, and lengthen
i'll explain
extend can only extend to something not to a given point
lengthen does what it says if you have a lin 2' long and it needs to be 5' and you dont have an objet to extend to you just lengthen it by telling it you want it 5'
good point about the extend/trim command yes they essintially do the same thing just in opposit directions but if you have 2 horizontal and 2 verticall lines that are parrallel to one another and you need one horizontal to extend to the one nearest to it and the other to the one farthest from it how can you do it in one stroke especially when the end points for the 2 horizontal are between the 2 vertical right then you must do a trim to one and an extend to the other but how is autocad supposed to know when you want to do wich one right tats why the shift to change between commands was implemented
:)) thats the easiest way i can explain it
if everyone helps everybody the world will be a better place
RE: Combination of trim, extend, and lengthen
So how about a custom button that does the chamfer command with an automatic setting of 0 distance? That's it! Create a copy of the chamfer command with a distance of 0 and it will trim and extend to each other or to the apparent intersection of each other. Then you could trim the example you gave in one command. I still would not have the full lengthen command but this would be an acceptable alternative.
Thanks! It has helped very much just to talk about it!
RE: Combination of trim, extend, and lengthen
macro
^C^C_chamfer;d;0;0;_chamfer
i call it corner cause thats what it does jst like a chamfer so be wary of how you use it
if everyone helps everybody the world will be a better place
RE: Combination of trim, extend, and lengthen
I know in trim, we typically chose the cutting line, and then the line we wish to get rid of. What if we could chose the cutting line and then the line we wish to keep? In both instances of trim and extend, you could get the line you wanted trimmed or extended, without modification to the cutting line.
What do you think?
RE: Combination of trim, extend, and lengthen
Also, just a tip for people who dont already know. If you want to save a step when your trim or extend, when it asks for the cutting edge, just hit enter w/o picking anything. Now pick the objects to modify and it will automatically find the next line that it crosses.
RE: Combination of trim, extend, and lengthen
sorry TWong if that wasnt what you were looking for
if everyone helps everybody the world will be a better place
RE: Combination of trim, extend, and lengthen
You can do a lot of things by using grips, you just have to play with it and find out. I hardly ever use trim because it is just as easy and quick to select the line and drag the endpoint to the intersection.
RE: Combination of trim, extend, and lengthen
I did however learn something new, when you select a line and chose one of the grips, hitting enter will scroll you through stretch, move, rotate, scale and mirror, for the line selected. That was pretty neat.
RE: Combination of trim, extend, and lengthen
if everyone helps everybody the world will be a better place
RE: Combination of trim, extend, and lengthen
Maybe I explained it incorrectly though, because, yes, perpendicular will work if the lines are perp. to each other, but if they aren't it won't work right. Sorry about that.
RE: Combination of trim, extend, and lengthen
Ok, you have two lines that dont intersect. You want to trim one line to the other line.
1. start the trim command
2. select cutting edge
3. before selecting object to trim, hit E for edge
There are two variables, extend and no extend.
Set it on extend. Now when you trim it will trim to where you want. This is a system variable and I think it stas on, but dont know for sure.
What this basically does is extend the cutting edge out in each direction so it will pick up everything.
RE: Combination of trim, extend, and lengthen
RE: Combination of trim, extend, and lengthen