User:Zdthi9

Welcome to EDSGN 497J Open-Source 3D Printing course. We cover the topic of creating physical objects by converting a part-data file to machine language G-Code, then using a self REPlicating RAPid prototyping machine - REPRAP - to extrude melted polylactic acid through a nozzle, the movement of which is controlled by the G-code instructions. The source of the part-data for this course is mainly the internet, where related sites list part files to be downloaded free of charge. Users obtain the part files, inspect for errors, convert the .stl (standard tessellation language) file to G-code and create their part on the REPRAP machine. .stl files are those which are divided into slices representing the layers that the parts are built up from. The following is a presentation of a general introduction to Additive Manufacturing:

]]Here is a presentation on the method of Powder-Bed Fusion:

A presentation on the method of Electron-Beam mnf'g

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Presentation on the method of Direct Metal Deposition:

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I will post continuing information as the course proceeds. Thanks.

2 Oct 14

Still working on being able to post the additive mnf'g presentation on this site - powerpoint files too large, looking for suitable link function.

A nicely detailed 3-D print of the Nittany Lion is in the print-club area of the room. Gives a good idea of the detail capability of Rep Rap machines.

Machines "Big Red", "Beta" and "Gold" are up and running. After adjusting operating parameters, they will be available to print parts for others and then objects for the class printing service to EDSGN 100 class teams. End.

9 Oct 14

Class continuing well although attendance is roughly 1/2. Those people are simply missing out for experience with these machines and background theory. Those here are continuing quite well and I'm surprised at how many up & running machines we have already. Our print service should be ready for the EDSGN classes. Still working on a method to get my Additive Mnf'g presentations posted on this site. Else, all good for now.

15 Oct 14: Attendance is a little sketchy but those here are doing really good work. Class could use more tools and equipment but there's no place to put it, such as a vice or machine tools. Weblogs are quite sparse so far - there's one that's really good, full of explanation and enthusiasm. As for this one, still trying to find a way to include my powerpoint presentations on various Add'v Mnf'g methods. Else - good so far. >>>>>>>