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Locking PTC Adapter

  • Sale
  • Regular price $19.00

  • SKU: 71239

SeeMeCNC Locking PTC Adapter for SE300 and HE280 hotends

Standard item on all SE300 hotends and standard on HE280 starting February 1st, 2018!

This precision machined components made in-house by the SeeMeCNC team. This adapter assembly captures a 38mm long PTFE tube and slightly compresses it to significantly reduce the likelihood of a jam.



  • SE300 Hotends
  • HE280 Hotends
  • SeeMeCNC 2 into 1 filament adapters part no. 70630 and 70689
  • Artemis 300 printer (already included standard)
  • Orion (HE280 only)
  • RostockMAX v3 (HE280)
  • RostockMAX v3.2 (SE300 already included standard)

Note: This adapter



  1. Observe slight inside taper of PTFE tubing. This taper is inserted up into the knurled adjusting component.
  2. Position jam nut almost completely threaded onto the knurled adjuster.
  3. Screw in the adjuster assembly by hand until some resistance is felt by trapping the PTFE tube between the heat break and knurled adjuster.
  4. No tools needed, turn 1/4 further to slightly compress the PTFE tube.
  5. Then use the blue SeeMeCNC hotend spanner wrench (included) to firmly tighten the jam nut to the PCB.
  6. Install the included nylon PTC locking clip on the PTFE bowden tube and snap under the black PTC release ring of the knurled adjust assembly.
  7. Seat the bowden tube again after installing the lock clip.
  8. Finished




  • Precision machined aluminum
  • Precision injection molded nylon