I have a simple 2d design that was constructed using several line segments. I have not been able to figure out how to weld the individual segments into one singe segment. When I extruded the item it left a hollow void. Only the lines extruded when it was suppose to extrude to a .125" plate. Any ideas what im doing wrong here?
arronpatton said: I am left with 8 individual segments. 4 lines and 4, 1/4 circles that form the box. If I extrude these 8 segments I end up with an extruded border and not an extruded plate because the segments are not joined into one. Is there a reason why I cant join these together?
I don't have CorelCAD myself, but you could try using the "join" command, this should join all the items together into a single object (polyline) and then you should be able to extrude the object..
Perhaps the CorelCAD "weld" function is basically the same as the "join" command, in that case it should work but only if all items are coplanar and touching.
Did you try using fillet with a radius of zero to connect the lines and circles/arcs to make sure there are no gaps left before using the weld function. Even a tiny gap of one millionth of a millimeter might cause the command to fail. If the trim command is not a perfect trim there might be a very tiny gap left, hence the fillet suggestion.
arronpatton said:lets say i have 4 circles setup in a square pattern and I want to connect them using 4 single line segments and then i trim the circles to give me a box with rounded corners. I am left with 8 individual segments. 4 lines and 4, 1/4 circles that form the box. If I extrude these 8 segments I end up with an extruded border and not an extruded plate because the segments are not joined into one. Is there a reason why I cant join these together?
In the CorelCAD Help you will find notes about the WELD command. There's certain limitations with regards to joining objects of different types. You probably need to have a polyline (instead of a simple line) to start with as base object and then weld the adjacent arc(s) and line segments to it.
Here's what the Application Help says:
Use the Weld command to merge two entities into one. You can merge Lines, open PolyLines, Arcs, elliptical Arcs, or open Splines. You can also transform Arcs to Circles and elliptical Arcs to Ellipses.
Use these guidelines when welding entities:
[..]
Best regards,Klaus.
Hi,
Klaus's advice is correct - You need to use PEDIT and JOIN, rather than WELD.
I hit the same issue in this post: http://community.coreldraw.com/forums/t/42714.aspx
Here's the advice I got from Corel Support -
"Update: Took this ( and others ) to Corel Support. They looked into it, and apparently weld doesn't do what the training videos say it does ( and it doesn't quite do what AutoCAD thinks either ) - but it's all moot.
To do this - Type PEDIT and then M for Multiple polylines. Select and convert them all, then JOIN. Works beautifully. So, if connecting lines, don't use WELD or JOIN - use PEDIT and convert to Polylines first - :)"
Once you do this, then it will extrude correctly and without any hollow spaces. Also, it's much easier to use than WELD - :)
Weld does something different, but join does what you're wanting.
Regards
David