Bambu PTFE connector upgrade
https://cults3d.com/en/3d-model/gadget/bambu-ptfe-connector-upgrade
I had a L93A PTFE connector fail where the filament exits the H2D buffer. The Bambu Wiki instructions were to disassemble the printer and replace the buffer. No buffers in stock with Bambu. However; in a different Bambu Wiki it shows how to replace the L93A connector, by gaining access to both sides and prying the connector out. Bambu does not appear to sell the L93A, but Aliexpress and Amazon do.
Therefore, on the buffer I pried the one side I had access to:
Then I wrapped safety wire under the release button of the old L93A and pulled out the broken PTFE connector, without prying from the back.
The L93A has two flats that need to align with the bore before you can press in a new one. I did not have any L93A’s on hand and aligning the two flats would be very hard with the buffer mounted in the printer.
Anyway I prefer Serviceability, so I created a screw in adapter, which uses a ECAS-04 PTFE connector.
I consider this ECAS-04 screw in adapter an upgrade, because you do not need to disassemble anything to replace a bad connector after installing these adapters. Simply unscrew the adapter and screw in another !!!
Link to download my adapter is at the top of this post.