October 3, 2025
Description
Decreases the ID of the Catch 3 hole so can use your catch 3 piece without the aluminum barrel insert.
This prevents aluminum shavings from building up in your plunger tube over time as the plunger rod catch nut and spring wear against it.
Print it fully solid in TPU or PETG. Dry your filament, tolerances are tight.
Also included are PTFE versions that let you use 4mm Teflon Bowden tubes to remove slop from the prime. No glue needed.
License:
Creative Commons — Attribution — Noncommercial — Share Alike