Lines not straight

[Guest eddie57]

I am using ADT 2000 and I completed a drawing yesterday and today I opened it up and the lines are not straight like I drew them. They appear a bit crooked. I set ortho on and drew a line from the bottom point of an existing line straight up and they don't line up, but they should. The original lines seem to be a few degrees off. Does anyone know what is going on?

 

Thanks

Eddie

[dbarc]

Are you sure the UCS is the same as that used to create the original line?

 

Try typing UCS then E then clicking the original line - this will choose that line's UCS. Now draw a new line snapped to the original and see if it now lines up.

[Guest eddie57]

Thanks, I'll give it a try.

[Guest eddie57]

I tried drawing a straight line and I can't seem to draw a straight line now. Have any idea what to do. First time this has happened.

 

Thanks

Eddie

 

PS: I am a novice user.

[dbarc]

Are you familiar with the UCS? Basically when you create a new drawing any lines/geometry you draw will be created relative to the World Coordinate system, WCS (the default cartesian x,y,z coordiante system)

 

A UCS (User coordinate system) can be set up to make modelling at an angle to the WCS easier. For instance if you wanted to add some geometry perpendicular to a slope, you would create a UCS where X runs along the slope, Y up it and Z perpendicular to it.

 

It sounds to me like you may accidentally be drawing in a UCS very slightly skewed to your WCS which would explain why your lines are very slightly wrong.

 

Scrap what I said before. Try typing UCS then W. This will take you back into world coordinate system, then see if you can draw lines which align with the original..

[Guest eddie57]

I had set it to World already. Gonna restart the PC and see what happens.

 

THanks

Eddie

[bigroo]

I've never used ADT (only Acad), is it something as simple as not having the ORTHO or POLAR on?

[Guest eddie57]

Thanks,

 

Do I have to redraw everything again or is there a way to align the existing drawing?

 

Thanks

Eddie

[dbarc]

If that was the problem and they were all drawn on the same wrong UCS you should be able to realign them to WCS using 3D rotate. The complication would be if they aren't all on the same plain..or some bits are on one UCS, other bits on another. - it's happened to me and it's a pain in the neck!