El 6 de febrero de 2016 00:16:22 GMT+00:00, [email protected] escribió: >The thing I've been grumbling about almost since I started using Free >Software all to many years ago is the lack of a competent 3-D CAD >package.... LibreCAD is OK for 2D, and it is being actively maintained >and worked on, but it is ONLY a 2-D package, and a lot of people look >at you like you are nuts for even considering using a 2-D package these >days.... > >I have looked at several open / free 3-D packages and have yet to find >one I could actually do useful (as in can take the drawing to a machine >and MAKE the part....) >
http://www.freecadweb.org/ used by one of our makers to do a cnc machine. I believe she uploaded it somewhere. >If we have ANYTHING that compares to SolidWorks for capability, or the >Autodesk Creative Suite, I have never heard about it... > I have used solidworks, it is bloated and not one user uses even 3% of it's capabilities. >There are a few 'Free Beer' trap programs like OnShape that offer >'free' 'Software as a Service' 3-D capabilities but that is no less of >a trap than proprietary software.... > Agreed. Also, creates vendor lockin something not attractive for startups. >As an 'inmate' at the Artisan's Asylum, one of the worlds largest >hacker spaces, I get a lot of grief because I refuse to use the >Solidworks / HSMworks / AutoDesk / MatLab / Simulink installs in our >computer lab that are 'Free' for me to use as a member.... > In our makerspace one of the smallest in the world I learnt and used openscad to do an example plot with octave then created gcode http://slic3r.org/ sent it to the 3D printer using http://octoprint.org/ it is one of the openscad examples. (AGPL) >What FLOSS 3D package can compete? Solidworks / HSMWorks can do FEA >analysis on the drawing, can animate the moving parts to check for >proper operation and fit, and can then generate the G-code needed to >make the part on most CNC machines... > Solidworks is bloated. In fs we have different programs that do different jobs. Solidwords can't do parametric design without a spreadsheet which only works with Microsoft products. It is overpriced, new versions of software create file formats that by default can't be open with previous versions. Absolutely horrible. I think by definition is the worst kind of proprietary software. Worst is that it has a community of volunteers/fanboys around it with web pages where they upload stuff with I don't know what licence. Horrible. >As an ethical Free Software person, I have to generate HAND WRITTEN >G-code (can take longer than drafting the part, and mistakes are >potentially catastrophic that we don't even ALLOW hand written code on >some of our machines.... > http://slic3r.org/ never occurred to me to write it by hand, it is not on the repos (might be submitted soon?) But code is GPL or agpl. >Inkscape might be able to animate a drawing, as long as you don't care >about dimensions... > >I'm told there are FEA tools, but not that take a drawing from anything >else.... > http://www.freecadweb.org/wiki/index.php?title=FEM_Module That can be exported to FEA tools such as https://www.csc.fi/web/elmer There is an agreed standard (probably not official) file format for FEA forget what it is as it has been many years since I used it. But even proprietary software uses it. >ART > >======== Original TRIMMED message ========== >Message: 6 >Date: Thu, 4 Feb 2016 09:35:31 +0100 >From: Fabio Pesari <[email protected]> >To: [email protected] >Subject: [libreplanet-discuss] Updating the High Priority List >Message-ID: <[email protected]> >Content-Type: text/plain; charset=utf-8 > >https://www.fsf.org/campaigns/priority-projects/ > >This list is severely outdated. What about we propose new high-priority >projects? What proprietary programs (or network services without free >servers) do you or the people around you use _daily_ that haven't been >replaced by free software? Which free programs need more attention in >order to replace their proprietary counterparts? ><SNIP> > > >------------------ >Arthur Torrey - <[email protected]> >------------------- -- Richmond Makerlabs Ham United Group
