Vacuum wand for silicon substrates

thingiverse

Update 11/9/17: The substrate vacuum mount has been upgraded to minimize filament sag and improve stiffness. A new design features an improved vacuum channel and a mounting tube with an outer diameter of 6.8 mm, allowing for easy attachment to the standard 6.6 mm vacuum actuator pen. If needed, lightly sanding the mounting tube can facilitate a smooth fit. For optimal results, print face down on glass with 100% infill and 100 micron layers. Vacuum wand designed for handling silicon substrates measuring approximately 2-6 inches in length. Recommended materials for printing include: PETG offers good solvent resistance but lacks acid resistance. ABS provides mild acid resistance while exhibiting poor solvent resistance. Polypropylene is the preferred material, although it's not strictly necessary for most applications. PLA is not a suitable choice due to its limitations. Update 8/21/16: The vacuum channel has been slightly increased in height to compensate for filament sag.