RUG/Pennsylvania/State College/Hot Tip

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Hot Tip Projects


Penn State has decided to design and manufacture their own hot extruding tips. We are currently manufacturing .5mm tips and .35mm tips. We are hoping to get .25mm tips into manufacturing in the near future. This page is to keep update information on hot tip production and a place for future students working on hot tips to learn how to make them.


Below are the solidwork files as well as the drawing for the hot tip.

Brass Tip SolidWorks

Steel Tip SolidWorks

Brass Tip Drawing

Steel Tip Drawing


We are currently doing a combination of manual milling and CNC milling. For the .25mm tips we tried to manually mill the hole; however the machine was not precise enough to create a centered hole without breaking the bits. We used the FAME lab and a HASS turning center to create the front part of the brass piece, and manually turned the other parts.

Step by step instructions will be posted up shortly.


11.30.12 (In Progress) - We are currently working on redesigning the steel tip to include a smaller teflon piping to allow more space for the threads screwing into the hot plate. Updated solidworks drawings will be added when complete. With a smaller sized hole, we are working inserting a aluminum oxide rod to allow for higher temperature melting.