My wife broke the presser foot lifter ever on her serger. She wasn't the first one this one had alredy been glued together once by the previous owner. I got out my calipers measured it up and made a "good enough" model. It doesn't have a thread cutter in it but it does fit and does work properly. The sewing places want ~$20 US for this part when a few cents worth of plastic and a few mintutes will do the trick.
Replaces Elna Serger Presser Bar Lifter (Part #396014-76)
Compatible with Elna Serger (Overlock) Models:
604E, 614DE, 624DS, 624DSE,704DEX, 744, 745, 845, 904DCX, 905DCX, 925DCX, 945, PRO4DC, PRO4DE, PRO5DC & PRO5DE.
Alternative Part Numbers Include 396010-85
Note - added new Presser_Bar_Lifter.STL (2019.03.24) - this is based on accurate measurements on my machine not tweaked values based on my old Thing-O-Matic. I have also uploaded the Solidworks Cad Model I made.
Print part and affix to the serger where the original lever broke off.
If you do not have a 3d printer and need this part please feel free to contact me and I'll print one out for you. All you have to do is pay shipping and a small fee for the plastic.
Otherwise check your local public library or Makerspace for 3D printing!