Replicating a Drawing

[Portmanteau]

Hi,

 

I was hoping someone might be able to help me. I am trying to replicate a drawing created in Vectorworks in AutoCAD ('09). I am only a beginner with AutoCAd & I'm having difficulty replicating a step from this video: http://www.lboro.ac.uk/departments/sota/IT_tutorial_web_site/vectorworks/aaltoChairProject/vectorworks_aaltoChairProject_02.htm ;in AutoCAD.

 

Here is what I have done so far but the measurement outlined in the video isn't being replicated in Autocad.

 

 

The line measured in Orange should be 222.5 from the horizontal line to 45° line but, it's coming up as 222.6 in Autocad.

 

What am I doing wrong?

 

Thanks in advance.

Edited September 21, 2013 by Portmanteau

[Dana W]

Hi,

 

I was hoping someone might be able to help me. I am trying to replicate a drawing created in Vectorworks in AutoCAD ('09). I am only a beginner with AutoCAd & I am difficulty replicating a step from this video: http://www.lboro.ac.uk/departments/sota/IT_tutorial_web_site/vectorworks/aaltoChairProject/vectorworks_aaltoChairProject_02.htm ;in AutoCAD.

 

Here is what I have done so far but the measurement outlined in the video are not being replicated in Autocad.

 

[ATTACH=CONFIG]44094[/ATTACH]

 

The line measured in Orange should be 222.5 from the horizontal line to 45° line but, it's coming up as 222.6 in Autocad.

 

What am I doing wrong?

 

Thanks in advance.

You are not doing anything wrong, It appears that the line in question is not perfectly perpendicular, assuming that geometry is supposed to be a square.. This could account for it being 0.1 too long. That means the adjacent lines are not accurate either. Converting vectorworks drawings to AutoCAD is pretty much a challenge for everyone. The geometry doesn't always come out very accurate. They have to be "dressed up" a bit.

[Portmanteau]

Hi Dana, thank you for your reply.

 

The geometry is not a square, in fact it's a 222.5 green line that is supposed to intersect the 45° but, it will only intersect at 222.6. Very annoying

[mikekmx]

Hi Dana, thank you for your reply.

 

The geometry is not a square, in fact it's a 222.5 green line that is supposed to intersect the 45° but, it will only intersect at 222.6. Very annoying

 

the line's properties state it is 222.6?

your dims may be rounding up. (i haven't downloaded the dwg as no cad on this pc)

[JD Mather]

Attach your dwg file here and quickly end all doubt.

[JD Mather]

.... green line that is supposed to intersect the 45° but, it will only intersect at 222.6.

 

Green line can intersect the 45° at an infinite number of points - it is up to you to set it at the 222.5 point. (I was able to easily do it.) Attach your file here.

[nestly]

I believe the tutorial is either wrong or misleading, 810.8 (Base line length) minus 588.2 (start of vertical line from the origin) equals 222.6 therefore the vertical line must also be 222.6 in order for the angled line to intersect at a 45 degree angle. Perhaps the line angle isn't supposed to be exactly 45 degrees, but then that begs the question why he initially made it 45? I never used Vectorworks, so perhaps that's a logical workflow for Vector, but IMO that's not even close to how I'd do it in AutoCAD.

 

*Edit.. upon further review, the dimensions are not accurate because his drafting technique are ... ummm... not very good.

Edited September 21, 2013 by nestly

[Dana W]

Hi Dana, thank you for your reply.

 

The geometry is not a square, in fact it's a 222.5 green line that is supposed to intersect the 45° but, it will only intersect at 222.6. Very annoying

[ATTACH=CONFIG]44096[/ATTACH]

OK, then, the orange line is a dimension? I saw the pixilation in the orange line and went with that. You have experts here now. See ya. Good luck.

[JD Mather]

Port...

 

are you still working on this? I would spend more time on this issue myself, but pointless if you have moved on.

[Portmanteau]

I'm so sorry for not getting back to you guys. The email address I use to receive notifications is not my main one, hence I rarely access it. Please accept my apologies.

 

Yes, I am still working/struggling with this exercise.

 

Hi Dana, thank you for your reply.

 

The geometry is not a square, in fact it's a 222.5 green line that is supposed to intersect the 45° but, it will only intersect at 222.6. Very annoying

[ATTACH=CONFIG]44096[/ATTACH]

 

Just to clarify - what I was trying to say was, the 222.5 green line is supposed to measure when it intersect the 45° orange line but, it will only intersect (the green line) at 222.6.

 

From your I think you have gathered what I'm getting at.

 

Attach your dwg file here and quickly end all doubt.

 

As requested, please find attached. Thank you JD M.

 

*Edit.. upon further review, the dimensions are not accurate because his drafting technique are ... ummm... not very good.

 

Hi Nestlty, thanks for the reply. I didn't quite understand your calculations. Yes, one of the things I've found when using AutoCAD when compared to using Vectorworks is that it seems to be more accurate. Well in this instance anyway.

 

Thanks again for all of your feedback. I will check my emails/this thread regularly should I be fortunate to receive further advice.

Cross Table v. 2.0.dwg

Edited October 12, 2013 by Portmanteau

[Portmanteau]

I still require help with this please.

[nestly]

What are you seeking assistance with, the original drawing (chair) or the "cross table"?

 

I'm not even sure where to start with the "chair" because the guy demonstrating how to draw the chair is so sloppy. For starters, when he pulls the 45 degree line back to the 222.5 vertical line, he pulls it back to what appears to be an extension of the vertical line, not the actual endpoint of the 222.5 vertical line. Your observation that the lines do not intersect when one leg is 222.5 and the other is 222.6 is correct, but the guy seems oblivious.... this is typical of other drafting inaccuracies made throughout his demo. I can show you how to do it in AutoCAD, but since his reference drawing is not correct, I'd have to make some assumptions.

[JD Mather]

I still require help with this please.

 

Did you attach the correct file? The file you attached does not look like the video you referenced.

I nearly had the chair finished and was ready to instruct step-by-step weeks ago, but I thought you abandoned the effort.

Questions here are usually answered within a couple of hours (if not minutes). Bump the thread if it doesn't get a response for a day.

I will have to start over from the beginning. Hopefully someone else can jump in here.

[Portmanteau]

What are you seeking assistance with, the original drawing (chair) or the "cross table"?

 

I'm not even sure where to start with the "chair" because the guy demonstrating how to draw the chair is so sloppy. For starters, when he pulls the 45 degree line back to the 222.5 vertical line, he pulls it back to what appears to be an extension of the vertical line, not the actual endpoint of the 222.5 vertical line. Your observation that the lines do not intersect when one leg is 222.5 and the other is 222.6 is correct, but the guy seems oblivious.... this is typical of other drafting inaccuracies made throughout his demo. I can show you how to do it in AutoCAD, but since his reference drawing is not correct, I'd have to make some assumptions.

 

The cross table please. Yes, I take your point about the inaccuracies & thats probably why I have been running in to problems.

 

 

Did you attach the correct file? The file you attached does not look like the video you referenced.

I nearly had the chair finished and was ready to instruct step-by-step weeks ago, but I thought you abandoned the effort.

Questions here are usually answered within a couple of hours (if not minutes). Bump the thread if it doesn't get a response for a day.

I will have to start over from the beginning. Hopefully someone else can jump in here.

 

Hi JD,

 

Sorry for not getting back to you sooner. I didn't realise the reply turn-over was so fast - what with work and family sometimes I find it difficult to find the time. I'm very interested in continuing his tutorial. Your offer of doing a step-by-step would be absolutely amazing. I'm not sure what you mean when you say my file/work differed to that of the tutorial. I'm trying complete the table exercise however I have gone beyond the problem I first encountered.

 

Best regards

[JD Mather]

I'm not sure what you mean when you say my file/work differed to that of the tutorial. I'm trying complete the table exercise however I have gone beyond the problem I first encountered.

 

Best regards

 

I am lost. I thought we were talking about a chair, not a table. If I "go beyond a problem I first encountered" that means to me that I solved the problem, it is now understood and now I am tackling more complex problems.

 

I would want to see your solution to the chair problem before moving on, otherwise the more appropriate action (in my mind) is to back up and start over.

 

Problems posted here are usually answered "fast and furious" until or unless the original poster drops the ball by showing lack of interest in reaching a solution.

[Portmanteau]

Sorry, It's my fault. I'm getting confused with what I'm actually working on. I think I was initially working on the Chair exercise but got so frustrated with decided to try the Table exercise.

 

I 'll check my work just to make sure I know which exercise I am working on.

 

Sorry about the confusion - I hope I haven't wasted anybody's time.

[Portmanteau]

Right, I figured out which project I was having the issue with and it is indeed the Aalto Chair project. Unfortunately I cant find the file that I was working on - although I would like some help if the offer is still going. Please refer to original post, pictures & link, ignoring the file I uploaded.

 

Thanks again