Unfortunately I don't think it is quite that simple even though I know nothing about piping. Pipe elbows it would seem, must have a minimum inside radius.The elbow or bend is called out as a centerline radius.I have no idea what the standards are myself, but it will depend on the usage and type of pipe, and whether it physically can be bent, or the elbows have to be welded in place, or threaded on.I do know for sure that 12' pipe will not bend on a 10' outside radius. Your inside radius would be negative 2'.From what I can see on the interwebs, my best guess is to start with an inside radius equal to the pipe radius, which is 6', then add the diameter of the pipe which is 12', to obtain the outside radius of 18'. If you are tasked with drawing double lined piping then you may want to look at this freebie gem from ASMI, which automatically draws the fittings based on the radius which you preset:Hope this helps.Tannari did download the Lisp, how do i install this lisp? After downloaded, i open the notepad and it shows bunch of text like below. Excellent tool.(defun c:DUCT(/ actDoc ang1 ang2 ang3 ptLst enDistfPt lEnt lObj lPln oldVars oldWdplEnd plStart1 plStart2 prDirsegLst Start stDist stLst tAngvlaPln cFlg.error.)(vl-load-com)(defun GetPlineVer(plObj)(mapcar 'cdr(vl-remove-if-not'(lambda(x)(=(car x)10))(entget plObj)))); end of GetPLineVer(defun asmi-PlineSegmentDataList(plObj / cLst outLst)(setq cLst(vl-remove-if-not'(lambda(x)(member(car x) '(10 40 41 42))).
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Sengna, please read the Code Posting Guidelines and use Code Tags for Code in the future.Most designs will use long radius elbows, where there is room, for improved flow.There is also an extra long radius elbow and it is 3x pipe diameter at center radius, which you may or may not run across.Be easier to make a set of elbows as blocks on a tool palette than to try to draw them each time.Here is a chart.Another as a PDFP.S. I have an excel file from Pipedesigners.com with info for ELLs, Tees, Flanges, Eliptical Heads, etc., but it is too large to post here, even as a Zip file. Sengna, please read the Code Posting Guidelines and use Code Tags for Code in the future.Most designs will use long radius elbows, where there is room, for improved flow.There is also an extra long radius elbow and it is 3x pipe diameter at center radius, which you may or may not run across.Be easier to make a set of elbows as blocks on a tool palette than to try to draw them each time.Here is a chart.Another as a PDFP.S. I have an excel file from Pipedesigners.com with info for ELLs, Tees, Flanges, Eliptical Heads, etc., but it is too large to post here, even as a Zip file.Lisp routine already exist here and running and draws them all in each schedules according to standards.
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Design hub this video will show you haw to make AutoCAD piping isometrics step wise. So you will able to make piping iso in easy way. You can download Piping.
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