skiddaw2 wrote > My foolish solution in a previous project was to issue an echo(" ") > command inside the 2x4(LL) module which then wrote "BOM, 2x4, LL" in the > preview text for every 2x4() called. That's what I did: <http://forum.openscad.org/file/n18005/201509_CornerShelf_BOM.png> ----- $ Runsun Pan, PhD $ libs: doctest , faces ( git ), offline doc ( git ), runscad.py ( 2 , git ), synwrite ( 2 ); &nbsp; $ tips: hash ( 2 ), matrix ( 2 , 3 ), sweep ( 2 ), var ( 2 ), lerp , animation ( gif , prodVid , animlib ), precision ( 2 ), xl-control , type , rounded polygon , chfont , tailRecur ( 2, 3 ), isosphere ( 2 ), area , vol/center , RGB , CurvedImg ; $ Apps: rollApp , blockscad , openjscad , on AWS ( pdf ) -- View this message in context: http://forum.openscad.org/Weight-of-Raft-tp17995p18005.html Sent from the OpenSCAD mailing list archive at Nabble.com.