I have done a design for the well drilling rig, and modeled as best I could the "as built" versions of the rototiller, the backhoe, and the universal rotor. On the organization front, I am in the process of categorizing all of the images on the wiki (I am about 25% done after ~14 hours) and am trying to get the file upload restrictions changed so CAD drawings and files can be uploaded to the wiki.

I can work on this full time for the next few months so I am trying to get started as quickly as possible. I plan to finish organizing the rest of the pictures and then start "mining" them for design information by converting them into "replica's" of the models built as prototypes on the farm (at least for all the existing stuff anyway). Once I have those rough models I make a 2d sketch like you see for the rototiller and upload it to the site so the people on the farm can add dimensions to all the pieces and then scan that back onto the wiki. Once we have the "as built" dimensions we can discuss as a community what we want to change about the design and if the dimensions are good. If they are it is then a simple matter to adjust the various machine components to the agreed upon dimensions and optionally do this for both english and metric builds of the same machine. Then the finalized 3d models are converted to 2d drawings with dimensions, and CNC and torch table control routines are created to manufacture the next prototype. Obviously for things like the furnace which have not been built yet the process will be a bit different but there are quite a few small machines like the ones I have made CAD stuff for and I plan to do the rest of those ASAP so we can start discussing the designs with the aid of fully fledged 3d models to aid in discussion.

I have been trying to get a list of high priority items to do CAD drawings for from Marcin but it seems like there is not really a list at the current time. I can make 3d models like the ones for the rototiller for anything I can find an image of (the rototiller all comes from the video on the development page). If there is anything anyone wants a model of, post a picture or sketch to the wiki and I can knock up a rough model in a few hours.

Yeah its been quite a task so far. Once I get all the pictures sorted by type I plan to go through them again and categorize them in a separate tree by subject matter. That way you can calculate the intersection and difference of various categories and produce pretty useful lists of media content and pages.

Hi Andrew, thanks for your great job!

As for the upload restrictions, I don't know why I forgot about these file types...
Anyways, I've just added svg and dxf to the allowed list.

I just uploaded an SVG and it uploaded correctly, however mediawiki automatically converts SVG images to PNG images on-the-fly and serves the PNG images to people in articles, etc (they do this because many browsers suck at displaying SVG images properly).  It looks like it is unable to find one of the converters for the process.  See the SVG image below for the error message.

http://openfarmtech.org/wiki/File:Rototiller_Tine_Sketch.svg

Note to self: take a look at the page below to find out how to fix the svg problem:

Hi Andrew,

DIA files are now allowed. What are the file extensions associated with the most common CAD file formats ?

Thanks