CAD-LOVER0208 Posted February 24, 2011 Posted February 24, 2011 Hello, how r u all ? Ok I hope I'm not bothering you with my questions again , actually this time it's not my questions, it's from one of my colleagues. After I told him about this site, and how helpful everyone is, he decided to share his questions with me and you all, so I hope we can help him. I tried, but my AutoCAD knowledge is very little so, here I am asking for your help. My colleague will be very thankful if we helped him with his questions and everyone else at work. Here is the letter I got from him: ----------------------------------- Am doing co-operative work term at a curtainwall and glass company, so after doing the dimensioned frame elevations, I am required to get the glass sizes for ordering. Not very hard, but very slow, and easy to make errors ( number transposition, quantity count, count by glass type, etc). I was doing some reading, and wondering if possible to do in lisp ? 1- Using hatch with boundaries, choose the glass areas in the frames ? 2- Have lisp program to identify the boundaries and add 1" (25mm) to the length and width dimensions of each of the boundaries ( this is the glass bite, or the glass that goes into the frame for holding, and is actually a 1/2" offset from the face of the frame). 3- Have the lisp program identify and count how many of each size and give tabulated summaries ? 4- Sometimes there are several different types of glass in one frame. Would it be possible to use different hatch patterns ( and ask for description), and tabulate separately ? If different hatch patterns cannot be recognized, it would be possible (?) to work on different layers, or would the program have difficulty with this too, which would then require multiple copies of the same sheet, each with its own separate process. This would be possible, but not neat and elegant. 5- Sometimes ( not very often ), we do not have rectangular pieces of glass with four 90 deg. corners. Sometimes only 2 square corners, infrequently, only one square corner. This is reaching for the sky, but of someone feels the need for a challenge..... (AutoCAD 2010) ----------------------------------- I really appreciate your help.. Thanks in advance Quote
Jack_O'neill Posted February 24, 2011 Posted February 24, 2011 Couple of other things you'll need to consider is the presence of doors and windows in your curtainwalls, as well as louvers and sometimes sheet metal infill as well. I would have thought that the material take-off folks at your company would already have something in place for this. The "boundaries" you refer to are commonly referred to as "DLO" or "Daylight Opening". The companies that I contract to want to see "DLO" next to or under the dimension, so that should be easy to determine. You mentioned hatching different glass types. The usual practice is to hatch only the spandrel areas, vision glass infill is usually left alone. I've had projects that had as many as 6 or 8 different infills in the same frame. Some spandrel, some clear, some tinted, varying thicknesses, etc. In hurricane zones you will have impact resistant glass up so high depending on code, as well as requirements for tempered glass in some frames and not in others. Some governement buildings will have all of these, as well as bullet resistant glass in places. You could find yourself scrambling for hatch patterns, and all that would make for an ugly and hard to read print, as well as making the file size unnecessarily large. Depending on which version of Autocad you are using, you may have problems with the hatches not staying arranged properly if there gets to be too many of them. Some of the previous releases were notorious for screwing up hatches. I've attached a pdf of how I do curtainwall elevations. This is not "the" way, it's simply how I do it for my customers. Other folks may want something different and that's fine. If your company does something similar to this, it may aid whoever writes the lisp for you to see it. I am completely useless when it comes to writing lisp. elevation.pdf Quote
BIGAL Posted February 25, 2011 Posted February 25, 2011 Probably do able, one suggestion 1 glass hatch pattern but assign it to different layers for the material, now for the bad part nothing in life is ever free, if your lucky some one may have done something, else find an experienced programmer to write it for you. 1 program I did 25mins for task new program 25 seconds you work out the savings. Quote
CAD-LOVER0208 Posted February 26, 2011 Author Posted February 26, 2011 Great thank you More help and explanation please please Quote
Jack_O'neill Posted February 26, 2011 Posted February 26, 2011 Great thank you More help and explanation please please More help and explanation on what, specifically? Quote
CAD-LOVER0208 Posted February 27, 2011 Author Posted February 27, 2011 (edited) On the questions asked in my thread ... Edited March 30, 2011 by CAD-LOVER0208 Quote
ReMark Posted February 27, 2011 Posted February 27, 2011 I think the OP is looking for one or more "magic" lisp programs to automate some of the process. Quote
SLW210 Posted February 28, 2011 Posted February 28, 2011 I will move this to the LISP section, you may get some help there. Quote
pBe Posted February 28, 2011 Posted February 28, 2011 tell you what, post a snapshot of what you describe as we do not have rectangular pieces of glass with four 90 deg. corners. Sometimes only 2 square corners, infrequently, only one square corner. I suggest that you Hatch away like you regularly do. and from there lisp will takeover the "counting and tabulated summaries" Quote
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