<div dir="ltr">Anyone here familiar with BRL-CAD ( <a target="_blank" href="http://brlcad.org/">http://brlcad.org/</a>
) ? It's a pretty interesting 3d-modeling software suite which
is designed specifically for CAD/CAM. That makes it different from and
(I hope) better than things like Blender ( <a target="_blank" href="http://blender.org">http://blender.org</a>) and Artofillusion ( <a target="_blank" href="http://artofillusion.org">http://artofillusion.org</a>
) for designing printed objects. It's a pretty simple install on my
Debian Jessie system. I haven't tried it on other distros. I believe it
is available for proprietary OSs but that is outside my expertise.<div><br><div>This
software was developed in the mid-'80's by the US Army, but only open
sourced in 2004. Amusingly enough, Mike Muus, the guy who headed the
development team, was also the first author of ping(1). The UI dates
from 1984, the documentation also. The result of this is that it is a
fantastically rich program with all kinds of nifty features accessed
through a command line with a creaky GUI built on top of it. The doc
devotes no less than 2 illustrations and 5 paragraphs to explain the
zoom feature, but is notably silent on important concepts like vectors,
vertices, and object trees. The web is also pretty silent on most
specifics (e.g "How do I rotate a shape in BRL-CAD?"). The extensive
built-in documentation often doesn't explain anything about command-line
arguments beyond their existence and function. A glossary would be a
huge step forward for a n00b such as myself.</div><div><br></div><div><div>I
had a small breakthrough in understanding last night and succeeded in
building a rough model of a "standard craft stick" (114.3 x 9.5 x 1.5
mm). It took me about 2 hours to grok some basic facts on how BRL-CAD
works, partly because I lack strong background in 3D design and partly
because the tutorial is heavily slanted toward buttonology. The
original GUI ("mged") seems to require a 3-button mouse, but a later
iteration ("arrow") is more compatible with my current setup.The
tutorial, of course, assumes the former.<br></div></div></div><div><br></div><div>Has
anyone else tangled with this software? It seems really interesting but
somewhat difficult. Mastering it might be a Useful Life Skill for a
well-rounded 3D printing hacker.</div><div><br></div><div>Heck, at the very worst it might make an innaresting ALE talk?<br></div><div>-- CHS</div></div>