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Topic Tag: Machine building

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Hello Plastic Precious Community! My name is Nate Chandler, I will be working for PP V4 in Eindhoven until January. My teammate in this effort is Dutch engineer - @Peter-Bas. We are working to continue the development of the extrusion machine; building on the research that the rest of the community has already contributed. Our material research will be populated on this spreadsheet, which is similar to mathijsstroober's beam research. The development plan is going to hit different points, some highlights: - Plastic Preparation - sieve granule size, how will this affect our material output. - Material Testing - MFI (Melt flow index), Tensile testing, HDT / Vicat (Thermo/mechanical properties), and compression capacity. - Dies / Molds - 25MM Square tubing, 25MM pipe, 50MM square tubing, channel / unistrut, Brick 100x100x300mm, and experimenting with large injection molds. Currently we are using a 15mm NPT pipe fitting for beam extrusion. -   Nozzle Size - 1mm - 8mm, This will be upgraded to a custom milled part(s). A >1mm tri hole for fabric / thread(?) Square nozzle, made by modified phillips(cross-head) bolt. - Performance Monitoring - Adding pressure / heat sensors, this should give us a better perspective on what our speed / heat settings are producing. - Motor - Replacing the current 2.2Kw Motor for a 3Kw motor with higher RPM potential. - Continuous Beam Extrusion Water cooling jacket R+D. - Ergonomics - Variable speed control through the use of a TIG welding pedal / Sewing pedal setup. Temperature controller placement. These additions / upgrades are directed towards more efficient material output, and ease of machine use for product design. An area I am particularly interested in are the problems our community is facing when it comes to constructing the extrusion machine. I am eager to hear / field some questions. Stay tuned!
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