E3D Tool Changer Pebble Wiper V2.1
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Create pebbles instead of purge blocks!
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Model information
- Source
- Printables
- Category
- Other Printer Parts & Upgrades
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- Creative Commons — Attribution — Noncommercial — Share Alike
Pebble Wiper V2.1 for Tool Changing 3D Printers
I was tired of unreliable, time and filament-wasting purge blocks which made the tool changing 3d printer experience much less convenient. The Pebble Wiper system instead extrudes a small amount of filament (a pebble) onto a small flat platform, cools this filament, and then wipes it off the platform using a servo. If any filament is leftover on the nozzle, the hotend then does a brushing routine over a soft silicone brush. The Pebble should fall into the “Pebble Bucket” which simply slides onto the bottom of the Wiper and can hold several prints worth of Pebbles.
I also created a version of the Pebble Wiper which uses a lead screw to raise and lower the platform along a linear rail. This version is available as a remix:
I recommend the height adjustable version as it can adjust to different hotend lengths and allows you to use a more reliable, however complex, wiping routing.
I have included SLDPRT, STEP, and STL files for regular E3D Tool Changers using both fancy and cheap servos.
BOM for Pebble Wiper V2.1:
Printed PW V2.1 (I recommend printing in Polycarbonate, but other materials may work just as well, depending on your use case)
Servo (I recommend the KST DS215MG, a servo lead extension may be required)
Silicone Brush
Adhesive Backed Metallic Strip
*Optional: Metal Servo Arm
Links to model sources and materials used:
René's "Automatic Adjustable Brush": https://rene-jurack.de/automatic-adjustable-brush/
Gregs's “Adjustable Cleaning Brush”: https://www.thingiverse.com/thing:3744969
Servos:
- https://tinyurl.com/DS215MG
- https://tinyurl.com/MG14Servo
Silicone Brush:
- https://tinyurl.com/Silicone-Brushes
For the metallic strip any adhesive-backed metallic foil should work, such as HVAC foil tape.
Please check out my GitHub page for other information if needed: https://github.com/KevinMar1/Pebble_Wiper/releases/tag/V2.1
If you have any further questions, feel free to message me on my Instagram account @kevins_prints, or email me at [email protected]