Sunday, April 13, 2008
RepRap CAD model
In the interest of facilitating these mutations, I think one thing that would help immensely for some of us is to have a copy of the CAD used to design Darwin available. This allows more involved modifications to be digitally prototyped, directly printed, and then tested (I love how much easier this whole process becomes when we have access to 3D printers!) Currently there resides in the Subversion directory a copy (I'm not sure how up-to-date) of the CAD files in the Solid Edge format that Darwin was originally designed in, as well as copies of all of the RP parts in .STL and some of them (I believe) in .AoI.
I suggest that we augment these files with a complete copy of the machine plans in either the IGES or STEP file formats (both are open and ISO approved). This will allow the more CAD inclined of us to do our thing. :)
Embedded below is a copy of the Solid Edge files that someone who owns the program exported for me a few months ago as an IGES. I haven't worked with the files (much) since then, so this is pretty much the state of the design. There are some pretty obvious omissions. Unless someone on the dev team has more up-to-date files and can provide me with them, I'm trying take this model and by digitally following the assembly instructions, turn it into a fully modeled copy of Darwin. At that point, I will export a new IGES file and either find somewhere to host it online or place it in Subversion. My plan is to continue updating and re-releasing the model as the project goes through revisions.
For everyone's information, the software I'm using for this is Autodesk Inventor. I imported the IGES file, did a tiny bit of cleanup, then re-exported the files as a .dwf. I then uploaded that file to Autodesk's Freewheel service, which allowed me to embed the model here. It's quite a nifty feature, actually.
I'd like to put out one final call for more up-to-date files. These will work, but will take significantly more time to collate and rebuild than a more recent model would.
In addition, if anyone has Inventor and is interested in helping with this endeavor, let me know. I could always use some fellow monkeys. ;)
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