Platform for education and research in free/libre arts & technologies
This project intends to imagine, design, build and share a reproducible fabricator machine, made mainly from plywood, build on top of the knowledge and principles of the reprap project and its children. The idea is to build a generic machine capable to reproduce most of its own parts, using the rawest materials possible.
this model is intended to use 18mm plywood sheets, standard simple iron bars and as few as possible specialized mechanical parts (bearings and wheels). The electronics is based on the generic reprap construct, the precise determination can vary.
All rights are to be placed under GPL licence, so freedom is ensured.
There exists other machines like that in the world, but to date, none of those have their blueprints available and/or under a free licence (some say they will in the future … )
If you have information on the contrary, contact us, so we can add credit and share knowledge.
some are listed on diverse articles of Hackaday.com
a community organizing around the open hardware concept is gathering at http://openbuilds.com mainly using “off the shelf” but specialized components like aluminum extrusion, many open source CNC milling machine and 3D printers designs are available. Use it as inspiration for wood design of pieces.
see on reprap.org wiki
Hosni is working on a custom board as Study End Year Project, more information here later…
for a CNC capable of cutting at production rates, we need equivalent of NEMA23 or bigger motors to drive the axis. ⇒ 30V4A class driver needed, exceeding the classical 3d printer setup that don't need powerfull motor for action. Can be usefull for other type of mechanical setup like robot harm, seat simulator, roomsize printer, or cable robot(http://hackaday.com/2015/09/21/3d-cable-robot-uses-the-building-as-its-exoskeleton/ and http://hackaday.com/2015/09/24/cables-and-winches-become-an-awesome-simulator/).
the opensource ecology group build a CNC torch cutter in metal, and powered it with this
interesting technique to mitigate cogging in BLDC motors : http://modlabupenn.org/anticogging/
Kress spindle holder with hole for vacuum cleaner tube
source : use with Inkscape with Gcode plugin
based on bicycle gears and chain for easy sampling and replacement
this software can be useful : https://gitlab.com/damien.andre/openmeca
A free hardware project initiated by Olm-e contact to contribute, participate, …: firstname.lastname@example.org
mailing list : http://lists.entransition.be/wws/info/repfab.dev
we'll need some materials, electronics, and time to spend, if you like our project, you can still donate in bitcoin : 19NwfU8SVFCrTGzQKyJa4uHvCms2EEtUwn