teddy8bear

https://photos.app.goo.gl/TbSnNr1nD2n6zpnHA Please see the attached. I've got new bobbin case 0504151380. with shuttle frame 0504151220. However It doesn't fit on 205-64 cylinder arm. Would you help me if I bought wrong parts? or there is still a lack of parts for mechanical repair? 205-64.mp4

I have this DURKOPP ADLER machine model 205-64, however I've got original new shuttle #204150104 on hand, it doesn't fit on machine well. Please see the attached. Can I pick you brains？ What can be done to fix this problem? https://leatherworker.net/forum/topic/97461-can-i-pick-your-brain-adler-205-64-how-to-fix-shuttle-hook-in-sewing-machine/