Dual Material Link for Third Hand
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Third Hand link piece remix set up for printing the ball portion out of TPU and then switching to PETG
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- Printables
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- Electronics
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- Creative Commons — Attribution — Share Alike
This project file is set up for Prusaslicer to print a slightly enlarged ball portion in flexible filament (I used Fillamentum 98A Flexfill) and then a pause for you to change out for Prusament PETG for the remainder.
IMPORTANT NOTE: Be sure to raise the temperature of the PETG layer to 250C on your printer and the flow rate down from 95%to 90% right before the filament change . This can be done via gcode automatically after the pause if you know what you are doing.
The reason I did this is to prevent the degrading of the joint over time with the softer, but resilient, TPU surface on the ball.
Edit: Adding a thick lubricant like petro-gel and a tiny bit of sand to each joint has dramatically increased the holding power while retaining its mobility. I highly recommend it.