Difference between revisions of "RepRap Build-a-Thon"

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== Press Release ==
== Press Release ==

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Washington DC 20010 USA
Washington DC 20010 USA

== Concept ==
== Concept ==
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* List of reference PDFs:;task=category&amp;sectionid=5&amp;id=16&amp;Itemid=28
* List of reference PDFs:
* Excellent 3D PDF with build details:;task=view&amp;id=23&amp;Itemid=28
* Excellent 3D PDF with build details:
* Sanguino Arduino code:
* Sanguino Arduino code:

Revision as of 02:31, 24 November 2010

Press Release


Local Technology and Arts Collective Holding Weekend Seminar on
Self-Replicating Tools

Washington, DC – January  24-25, 2009.   HacDC the Washington, DC-area
technology and arts collective, is presenting a free, open to the
public two-day event over the weekend of January 24th – 25th.
Attendees will participate in the construction and use of a remarkable
open source tool, the "Replicating Rapid Prototyper" or RepRap.
Anyone can make a RepRap machine, using parts made by another person
with a similar machine, and a few additional parts that can be found
online or from a local hardware store.  RepRap is capable of making a
nearly complete copy of itself, given a small amount of (possibly
recycled) plastic.  Once the machine is made, the user can download
designs for other objects from the Internet or create their own
designs, which can then be printed with the RepRap machine.

The two-day sessions will include talks by RepRap founders and
pioneers, as well as demonstrations by local experimenters who have
built their own RepRaps and contributed to the development of the
system.   After the talks, the seminar participants will participate
in the construction of a RepRap from the ground up.  Attendees will
complete this process  during the seminar, providing a great
opportunity for everyone to get some experience assembling and using a
RepRap.  Smaller breakout sessions on related topics, such as stepper
motor function, microcontroller programming and 3D modeling will be
presented, in order to provide the attendees with the skills needed to
construct and use the RepRap system.

The event will take place at HacDC's headquarters at 1525 Newton St.
in NW Washington, DC.  The events will start at 10:00am on Saturday,
January 24 and end on Sunday the 25th at 3:00pm.  For more
information, see the HacDC website at:

The process of "desktop manufacturing" is coming of age- like the
personal computer in the 1970s, such systems are either very
expensive, or the purview of a few hobbyists in their garages.  But
like the personal computer before it, the desktop manufacturing
revolution is breaking out.  The RepRap, like other open-source
projects such as the Linux operating system and the Firefox browser,
is allowing anyone with the patience and interest to participate.
HacDC and other organizations throughout the world want to see that
this technology can be widely understood and utilized by the public.
As a result, HacDC (along with other area technology groups such as
B/WRUG, Make:DC and DC Dorkbot) are presenting this event, and making
it free and open to the public.


The RepRap Project is an initiative aimed at creating a largely
self-replicating machine which can be used for rapid prototyping and
manufacturing. A rapid prototyper is a 3D printer that is able to
fabricate three dimensional artifacts from a computer-based model.

Project authors describe 'self-replication', understood as the ability
to reproduce the components necessary to build another version of
itself, as one of the goals for the project.  This will allow the
number of RepRaps to increase exponentially to meet demand. The
authors further speculate that, due to the Open Source nature of the
project, RepRap will eventually demonstrate evolution, improving and
increasing its capabilities over time. This gives RepRap the potential
to become a powerful disruptive technology, similar to the Internet,
the home computer, and the automobile.  For more information, see the
RepRap website at:

Baltimore RepRap Users Group
Brian Dolge
briandolge at


HacDC is a District of Columbia Non-Profit Corporation whose mission
is to improve the world by creatively rethinking technology.
Specifically by building and maintaining spaces suitable for technical
and social collaboration.  HacDC collaborates on all forms of
technology, culture and craft in new and interesting ways, while
applying the results of its work to specific cultural, charitable and
scientific causes.  HacDC freely shares its research and discoveries,
using what is learned to teach others, and actively recruits and
develops talented members dedicated to these efforts.

Nick Farr
ndf at

1525 Newton St NW
Washington DC 20010 USA


Join the HacDC and and the Baltimore/Maryland RepRap User’s Group (RUG) for a weekend of RepRap fun! Save the weekend of January 24/25 for our RepRap Build-a-Thon. Initial plans include a range of activities, including hands-on group construction a RepRap Darwin from the ground up starting with laser-cut acrylic parts. We are also planning on having several local RepRap builders on hand with their machines, and hopefully able to demonstrate them in operation, making stuff!

We would also like to invite some of the local technology media/blogosphere folks, and take the opportunity to not only demonstrate what these machines can do, but also to talk in general about the implications of readily-available (and self-replicating) rapid prototyping machines. Certainly a great opportunity to chat with some RepRap pioneers, have a chance to participate in a hands-on build, and to generally have a good time with some local hackers.

More information coming as the plans develop- watch this space! If you are interested in helping out, please let us know via the mailing list. If you have contacts in the local technology media, or know someone in the trade who would be interested in this kind of event, please let us know! See the movie post below for a time-compressed version of RepRap construction by one of the original designers- the time represented by the video is about four hours. Given enough participants, we should be able to do something similar in our two days!

Project Plan

In order to get this project under way, it will be important to have a schedule that is workable, given that we have a month and a half or so to plan and execute the event. Thanks to Nick for this first cut at what needs to be done. Over the following week or so, we will identify folks to take these action items and give them a due date.

0) Ensure the venue is sufficient

1) Solidify the schedule for the event:

  • We have the Auditorium from 08:00 Saturday Morning to roughly 09:00 Sunday Morning
  • Due to church activities, we'll have to shift quietly into the HacDC space or our Workshop until roughly 13:00 Sunday afternoon, when we move down to the Dining Room.
  • Then we have the Dining Room until Monday morning.
  • Do we need to schedule time on Friday night?
  • Are we going to have classes, mini events, talks, etc? If so, what? We should try to make the event something that people can come check out for an hour, as well as have specific talks, classes, events, demos that people need to be there for at a specific time. (Otherwise, some people might not show up!)

2) Solidify the budget

  • This event should be free and open to the public, like all HacDC events
  • What are we going to realistically need/want to provide? Food? A machine for HacDC? Etc.

3) Publicity/Future

  • How frequently do we want to blog about it on, possibly cross-promote on, or other sites? Thingiverse?
  • When do we want to really start hitting make, etc.
  • What are we calling the event? Are we committing to doing something like this annually? Quarterly?

Proposed (DRAFT) Resource List

The draft Resource List is available as a Google Docs spreadsheet- you can see the current version here. Current DRAFT Resource List

Proposed (DRAFT) Agenda

The draft agenda is available as a Google Docs spreadsheet- you can see the current version here. Current DRAFT Agenda

Reference Material


repRapAgenda 20090126

Task list

  • procure m8 threaded rod (Ash; this afternoon at Fastenal: Rockville,MD)
  • install diagonal truss structure on 4/6 sides ( hacers, early evening )
  • true truss structure ( several hours )
  • sort all loose hardware
  • clean up
  • procure ball chain for x and y stages
  • install/build/burn/diag/adapt arduino software stack
  • test motor/endstop transit under power and software

Phase ++

    • install z stage timing belt
    • test z stage travel