See the BOM included in these files, or the one out on the Github: https://github.com/eclsnowman/Eustathios-Spider-V2.5/raw/master/BOM/ES25%20BOM.xlsx And the assembly prints available in these files or out on the Github: https://github.com/eclsnowman/Eustathios-Spider-V2.5/raw/master/Drawings/ESV25.PDF The Github will always have the most up to date information: https://github.com/eclsnowman/Eustathios-Spider-V2.5 And the Makerforums.info group is available for support questions as well as a great community: https://forum.makerforums.info/c/herculien