ChloeG Posted October 17, 2008 Share Posted October 17, 2008 Hello everyone. Hope everyone is doing well. I need your expertness once again, i can perfectly use an arc for one door, but i have failed miserably creating two arches. Connecting lines: Now i have already created a thread, and thanks to everyone especially Rustysilo - with the whole multiline edit way. It worked like magic but in these specific lines it didnt work at all :/ Heeeelp! I've uploaded a photo so you can, i dont know, feel my pain and understand what im on about. Cheers Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 17, 2008 Share Posted October 17, 2008 Just a quick thought: the two doors are not the same length (one is longer than the other) thereby resulting in overlapping arcs. Quote Link to comment Share on other sites More sharing options...
ChloeG Posted October 17, 2008 Author Share Posted October 17, 2008 That makes a lot of sense, but ive used ortho to determine wheter they have the same length, and they do! perhaps you mean the length of the arcs? Quote Link to comment Share on other sites More sharing options...
skipsophrenic Posted October 17, 2008 Share Posted October 17, 2008 Try drawing a line from the inside bottom corner to of the one door to the inside bottom of another, then draw your circles with the centres at the endpoints rith the radius/diameter distance at the mid point. see if that works, if yo need any clarification let me know and i'll do a few screenposts tommorrow. Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 17, 2008 Share Posted October 17, 2008 Using ortho does not mean the doors are necessarily the same length. It depends on the method of input. Did you "eyeball" it? Did you use grid & snap? Did you use direct distance measuring? Did you draw one door and then mirror it? How were the doors constructed? If they are exactly the same length then "yes" your arcs were constructed differently somehow. What method did you use? They should both meet at the midpoint between the two doors and not overlap each other. Quote Link to comment Share on other sites More sharing options...
ChloeG Posted October 17, 2008 Author Share Posted October 17, 2008 skipsophrenic - i tried that method, they still overlap. I dont understand why. Perrhaps, ReMark is right. I have constructed them individually. I have no idea what 'eyeball' is. I am gonna try mirror, since i know how to do that. Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 17, 2008 Share Posted October 17, 2008 "Eyeballing" is a term that implies you didn't exactly measure the distance or construct the doors exactly the same. "Close enough for government work" is another term we tend to use when we take a shortcut. You constructed them individually how? That's why the arcs overlap. BTW you did not answer any of my questions. No evading. It's confession time. Quote Link to comment Share on other sites More sharing options...
ChloeG Posted October 17, 2008 Author Share Posted October 17, 2008 Haha you make me feel like i know nothing about autocad, which is kinda true i've only started using it. But yes, confession time..I did NOT use any of that sophisticated ways. All I have done is: used pl to create a door that is 900 by 20 (with ortho and object snap on) and then i created the other door by pl again anddd then i tried doing the whole arcs thing. Quote Link to comment Share on other sites More sharing options...
BOB'27T Posted October 17, 2008 Share Posted October 17, 2008 How about this: DOORS.dwg Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 17, 2008 Share Posted October 17, 2008 And how did you input the dimensions? Did you just drag the cursor in the general direction until it got "close enough" to the magic number or did you enter the dimensions via the keyboard or use offset or what? It's important to get these kind of techniques ironed out while you're still in the basic learning mode. Bad habits now will only make for more trouble down the road. I too knew nothing about CAD when I started. We've all been there. We are here to help. Quote Link to comment Share on other sites More sharing options...
eldon Posted October 17, 2008 Share Posted October 17, 2008 How about a couple of arcs? Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 17, 2008 Share Posted October 17, 2008 You'll hear the following a lot when dealing with AutoCAD and that is "there are many ways to accomplish the same task". I'm not saying one way is any better than another because we all have our own ways of doing things. For example, one way to construct your door would be to use the rectangle command. After specifying the first corner point (look at the command line here) type "D" (for Dimensions) then hit Enter. Now input the length of the door with a numerical value followed by pressing Enter. AutoCAD will then prompt you for the width of the door. Type in a numerical value followed by pressing Enter. Before the command finishes you'll have to drag your mouse in the direction of the rotation you want for the rectangle. Click when you are satisfied. The command will terminate. Done. By typing in the exact dimensions you can have 100% confidence in what you have just drawn. Unless of course you were born with three thumbs on one hand like me. Then I would just suggest checking your work with the distance command. LOL Quote Link to comment Share on other sites More sharing options...
ChloeG Posted October 17, 2008 Author Share Posted October 17, 2008 your method to create a door using a rectangle saves time, i am gonna use it more often now. But i still cant figure out why my arcs overlap Anyoneeee? Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 17, 2008 Share Posted October 17, 2008 Refer to eldon's excellent example. There's a clue or two contained within. Your arcs can overlap for a couple of reasons. 1) You based them on faulty door lengths. 2) You got a little careless in their construction. 3) The distance between the two door jambs is incorrect. Maybe you neglected to take into account the fact that if the doors are the same length (900mm?) then the distance between them (outside corner to outside corner) should be twice that (1800mm). Confirm the distance and adjust if necessary. While you're at it also confirm that your doors are indeed exactly the same. Temporarily move the one on the right over to and on top of the one on the left. Do they match. No? Then your arcs will also be different. Yes? Then the arcs were constructed based on faulty information (see above). Quote Link to comment Share on other sites More sharing options...
ChloeG Posted October 17, 2008 Author Share Posted October 17, 2008 yeah its excellent, i have saved it for reference. Thank you so much, eldon. I keep getting this when i get the arch right (or when it looks right) 'Specify end point of arc: *Invalid*' Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 17, 2008 Share Posted October 17, 2008 Are you familiar with direct distance entry? That is the method by which distances/dimensions are entered via the keyboard. Start your line or polyline command and drag the mouse in the direction you wish to go. Make sure Ortho is toggle On. Now type in the first distance then press Enter. Drag the line in the next direction (in the case of the door it would be perpendicular to the first line) and type in the second distance followed by pressing Enter. Continue to drag the line in a direction parallel to and opposite that of the very first line you drew. The distance you enter at the command line should be equal to the distance of your first line. Finish the task by typing for "Closed" and then press Enter. The end result should be a perfect rectangle. Now you have two ways of accomplishing the same task. And that, dear ChloeG is why CAD is such a versatile tool. Quote Link to comment Share on other sites More sharing options...
Tankman Posted October 20, 2008 Share Posted October 20, 2008 "Close enough for government work" is another term we tend to use when we take a shortcut. Another quote, "We're not making watches." Resize the doors, exactly the same. On the drawing the tolerance should be ± 0.0 (zero). Quote Link to comment Share on other sites More sharing options...
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