{"data":{"model":{"id":"545632","slug":"mmu3-alternate-cassette","name":"MMU3 Alternate cassette","authorship":"remix","club":false,"excludeCommercialUsage":false,"price":null,"eduProject":null,"ratingAvg":"0E-10","myRating":null,"ratingCount":0,"description":"

I'm doing a partial, self-sourced \u201cMMU2.5\u201d upgrade and it looks like the commonly available \u201cultimaker\u201d collet (6mm diameter) doesn't fit the collet holes on the MMU3 (5mm). In addition, it seems difficult to source the required 8.5mm x 2.9mm shaft. So I remixed the cassette with the following two changes:

Use a 6mm M3 socket head screw instead of a shaft, and,
Use a 6mm collet (like https://www.amazon.com/dp/B0B2825TB4 ) Because the top and bottom of the cassette isn't quite the same (the screw is assymetric!) I've uploaded two models. Print both for each slot (5 of each). The same wheel is used.

The screw just drops in place and is captured as if it were a shaft. Note that it is retained by a very thin wall (a single layer). There shouldn't be any axial load on the screw, so it worked fine for me, but some glue to hold the screw in place on the head side would probably be advisable.

","category":{"id":"134","path":[{"id":"1","name":"3D Printers","nameEn":"3D Printers","description":"Upgrading and improving your 3D printer couldn't be easier - no matter whether you're looking for functional or aesthetic modifications. Discover the best improvements.","__typename":"CategoryType"},{"id":"134","name":"Prusa Parts & Upgrades","nameEn":"Prusa Parts & Upgrades","description":"Explore upgrades, parts and modifications! Enhance your Prusa 3D printer with spool holders, camera mounts, LCD covers, fan shrouds, and more, including the Lack enclosure \u2013 all designed to optimize your Prusa MK4, XL, MINI, MK3S+, SL1S and more.","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-08-07T15:01:08.864984+00:00","firstPublish":"2023-08-07T01:00:53.555077+00:00","datePublished":"2023-08-07T15:01:08.842801+00:00","dateCreatedThingiverse":null,"nsfw":false,"summary":"A design for the MMU3 cassette that uses more common collets and a screw instead of a rod","likesCount":25,"makesCount":1,"liked":null,"printDuration":null,"numPieces":0,"weight":null,"nozzleDiameters":null,"usedMaterial":null,"layerHeights":null,"mmu":false,"materials":[],"dateFeatured":null,"downloadCount":70,"displayCount":1506,"filesCount":2,"privateCollectionsCount":17,"publicCollectionsCount":19,"pdfFilePath":"media/prints/545632/pdfs/545632-mmu3-alternate-cassette-900e72e8-581c-4e61-96b9-13d4ab4f0dfb.pdf","commentCount":4,"userGcodeCount":0,"remixCount":1,"canBeRated":false,"printer":null,"image":{"id":"2087169","filePath":"media/prints/545632/images/4392312_d6c2f233-469f-4d64-bcc0-969007a6b772/img_1739.jpg","rotation":0,"imageHash":"WAcKNQRQZ4iJV4Z5iIV4h/aJi5/Z","imageWidth":3024,"imageHeight":4032,"__typename":"PrintImageType"},"images":[{"id":"2087169","filePath":"media/prints/545632/images/4392312_d6c2f233-469f-4d64-bcc0-969007a6b772/img_1739.jpg","rotation":0,"imageHash":"WAcKNQRQZ4iJV4Z5iIV4h/aJi5/Z","imageWidth":3024,"imageHeight":4032,"__typename":"PrintImageType"},{"id":"2087170","filePath":"media/prints/545632/images/4392313_58915838-00d1-4f00-afb7-fbcfa23fbb3c/img_1740.jpg","rotation":0,"imageHash":"T/cFJQKXd8WLOZnImpr4aciOn7z5","imageWidth":3024,"imageHeight":4032,"__typename":"PrintImageType"}],"tags":[],"thingiverseLink":null,"filesType":null,"previewFile":{"id":"2323623","filePreviewPath":"media/prints/545632/stls/4387921_0263098a-e617-4f71-a711-0c381bc45f36/mmu3-alt-cassette-a_preview.png","__typename":"STLType"},"license":{"id":"9","disallowRemixing":false,"__typename":"LicenseType"},"remixParents":[{"id":"354900","modelId":"531604","modelName":"MMU3 printable parts","modelAuthor":{"id":"16","handle":"Prusa3D","verified":true,"publicUsername":"Prusa Research","__typename":"UserType"},"model":{"id":"531604","name":"MMU3 printable parts","slug":"mmu3-printable-parts","datePublished":"2025-01-30T10:53:15.892580+00:00","image":{"id":"2051129","filePath":"media/prints/531604/images/4313644_2895fd07-f0fa-4854-a690-e7076aef498d/mmu3_small.jpg","rotation":0,"imageHash":"MwgOBYD4h3d3iHd/hIZ4dyekYGAI","imageWidth":1600,"imageHeight":1200,"__typename":"PrintImageType"},"club":false,"authorship":"author","license":{"id":"9","name":"GNU General Public License v2.0","disallowRemixing":false,"__typename":"LicenseType"},"eduProject":null,"__typename":"PrintType"},"url":null,"urlAuthor":null,"urlImage":null,"urlTitle":null,"urlLicense":null,"urlLicenseText":null,"__typename":"PrintRemixType"}],"remixDescription":null,"__typename":"PrintType","user":{"id":"162111","handle":"doomsey_162111","verified":false,"dateVerified":null,"publicUsername":"doomsey","avatarFilePath":"media/auth/avatars/a6/a6c83b6f-7a93-4072-89e8-2091b01f9d32.png","badgesProfileLevel":{"profileLevel":9,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isFollowedByMe":false,"isHiddenForMe":false,"canBeFollowed":true,"billingAccountType":"personal","lowestTierPrice":null,"highlightedModels":{"models":[{"id":"76935","name":"Designer Lithoplane Moon Lamp Hue remix","slug":"designer-lithoplane-moon-lamp-hue-remix","ratingAvg":"5.0000000000","likesCount":38,"liked":null,"datePublished":"2021-09-25T17:48:39.633274+00:00","dateFeatured":null,"firstPublish":"2021-09-25T17:48:39.633274+00:00","downloadCount":246,"mmu":false,"category":{"id":"7","path":[{"id":"3","name":"Household","nameEn":"Household","__typename":"CategoryType"},{"id":"7","name":"Living Room","nameEn":"Living Room","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2021-09-25T17:48:39.660966+00:00","image":{"id":"434291","filePath":"media/prints/76935/images/831514_d7e7efcd-e3ce-4170-84d3-95eae71de785/moon-lamp.jpg","rotation":0,"imageHash":"KEoKFQIrV4+HJ3dIVolXdwpZc4BE","imageWidth":1074,"imageHeight":1488,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"162111","handle":"doomsey_162111","verified":false,"dateVerified":null,"publicUsername":"doomsey","avatarFilePath":"media/auth/avatars/a6/a6c83b6f-7a93-4072-89e8-2091b01f9d32.png","badgesProfileLevel":{"profileLevel":9,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"545632","name":"MMU3 Alternate cassette","slug":"mmu3-alternate-cassette","ratingAvg":"0E-10","likesCount":25,"liked":null,"datePublished":"2023-08-07T15:01:08.842801+00:00","dateFeatured":null,"firstPublish":"2023-08-07T01:00:53.555077+00:00","downloadCount":70,"mmu":false,"category":{"id":"134","path":[{"id":"1","name":"3D Printers","nameEn":"3D Printers","__typename":"CategoryType"},{"id":"134","name":"Prusa Parts & Upgrades","nameEn":"Prusa Parts & Upgrades","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-08-07T15:01:08.864984+00:00","image":{"id":"2087169","filePath":"media/prints/545632/images/4392312_d6c2f233-469f-4d64-bcc0-969007a6b772/img_1739.jpg","rotation":0,"imageHash":"WAcKNQRQZ4iJV4Z5iIV4h/aJi5/Z","imageWidth":3024,"imageHeight":4032,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"162111","handle":"doomsey_162111","verified":false,"dateVerified":null,"publicUsername":"doomsey","avatarFilePath":"media/auth/avatars/a6/a6c83b6f-7a93-4072-89e8-2091b01f9d32.png","badgesProfileLevel":{"profileLevel":9,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"76263","name":"Moon lamp stand for unthreaded socket","slug":"moon-lamp-stand-for-unthreaded-socket","ratingAvg":"5.0000000000","likesCount":23,"liked":null,"datePublished":"2021-09-19T16:23:12.127647+00:00","dateFeatured":null,"firstPublish":"2021-09-19T16:23:12.127647+00:00","downloadCount":110,"mmu":false,"category":{"id":"44","path":[{"id":"3","name":"Household","nameEn":"Household","__typename":"CategoryType"},{"id":"44","name":"Home Decor","nameEn":"Home Decor","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2021-09-19T16:23:12.155166+00:00","image":{"id":"430956","filePath":"media/prints/76263/images/824750_c8a6a204-8370-4d1d-ae91-25d52e5cedb3/lamp-stand.jpg","rotation":0,"imageHash":"lTgKJQZWq3eG+XiYaHmIiLaQaQlK","imageWidth":648,"imageHeight":974,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"162111","handle":"doomsey_162111","verified":false,"dateVerified":null,"publicUsername":"doomsey","avatarFilePath":"media/auth/avatars/a6/a6c83b6f-7a93-4072-89e8-2091b01f9d32.png","badgesProfileLevel":{"profileLevel":9,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"404096","name":"Exchange-A-Blade remix","slug":"exchange-a-blade-remix","ratingAvg":"5.0000000000","likesCount":11,"liked":null,"datePublished":"2023-03-19T20:57:15.783480+00:00","dateFeatured":null,"firstPublish":"2023-02-20T02:28:42.626439+00:00","downloadCount":68,"mmu":false,"category":{"id":"49","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"49","name":"Tools","nameEn":"Tools","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-03-19T20:57:15.799979+00:00","image":{"id":"1619709","filePath":"media/prints/404096/images/3365191_b5db33d1-6ecd-4d6a-a680-7eadf48a396b/img_1627.jpg","rotation":0,"imageHash":"HGoGJYa/mYZeZYZcZCaoqIZ4X5j3","imageWidth":4032,"imageHeight":3024,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"162111","handle":"doomsey_162111","verified":false,"dateVerified":null,"publicUsername":"doomsey","avatarFilePath":"media/auth/avatars/a6/a6c83b6f-7a93-4072-89e8-2091b01f9d32.png","badgesProfileLevel":{"profileLevel":9,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"75000","name":"Two Part Apple TV remote case","slug":"two-part-apple-tv-remote-case","ratingAvg":"0E-10","likesCount":6,"liked":null,"datePublished":"2021-08-30T16:14:00.583733+00:00","dateFeatured":null,"firstPublish":"2021-08-30T16:14:00.583733+00:00","downloadCount":45,"mmu":false,"category":{"id":"43","path":[{"id":"21","name":"Gadgets","nameEn":"Gadgets","__typename":"CategoryType"},{"id":"43","name":"Other Gadgets","nameEn":"Other Gadgets","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2021-08-30T16:14:00.610272+00:00","image":{"id":"423553","filePath":"media/prints/75000/images/811099_d7ce3d4c-e3ef-4ddc-856b-0416d26e2f5d/img_1371.jpeg","rotation":0,"imageHash":"1KoGRw73aoZ1mnaKZqhYZ4d5aK+I9ooI","imageWidth":2555,"imageHeight":2555,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"162111","handle":"doomsey_162111","verified":false,"dateVerified":null,"publicUsername":"doomsey","avatarFilePath":"media/auth/avatars/a6/a6c83b6f-7a93-4072-89e8-2091b01f9d32.png","badgesProfileLevel":{"profileLevel":9,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"626227","name":"Mixed material iPhone 15 case","slug":"mixed-material-iphone-15-case","ratingAvg":"0E-10","likesCount":6,"liked":null,"datePublished":"2023-10-25T16:19:18.634874+00:00","dateFeatured":null,"firstPublish":"2023-10-25T16:19:18.632772+00:00","downloadCount":99,"mmu":false,"category":{"id":"28","path":[{"id":"21","name":"Gadgets","nameEn":"Gadgets","__typename":"CategoryType"},{"id":"28","name":"Portable Devices","nameEn":"Portable Devices","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-10-25T16:19:18.653047+00:00","image":{"id":"2346599","filePath":"media/prints/626227/images/4964838_60cc71d8-f3ac-4806-a091-24f433f44c3f_b722226d-4570-44cb-aa55-cd6a386ce112/img_0888.jpg","rotation":0,"imageHash":"2woGQ4RJWXhvdBemKIyAfvo=","imageWidth":2805,"imageHeight":1332,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"162111","handle":"doomsey_162111","verified":false,"dateVerified":null,"publicUsername":"doomsey","avatarFilePath":"media/auth/avatars/a6/a6c83b6f-7a93-4072-89e8-2091b01f9d32.png","badgesProfileLevel":{"profileLevel":9,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"404087","name":"Bumper case for M1 iPad","slug":"bumper-case-for-m1-ipad","ratingAvg":"0E-10","likesCount":4,"liked":null,"datePublished":"2023-07-05T12:09:38.126832+00:00","dateFeatured":null,"firstPublish":"2023-02-20T02:10:18.454643+00:00","downloadCount":52,"mmu":false,"category":{"id":"28","path":[{"id":"21","name":"Gadgets","nameEn":"Gadgets","__typename":"CategoryType"},{"id":"28","name":"Portable Devices","nameEn":"Portable Devices","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-07-05T12:09:38.146597+00:00","image":{"id":"1619690","filePath":"media/prints/404087/images/3365148_b861883a-b062-494b-942d-daaf60554760/img_1625.jpg","rotation":0,"imageHash":"F6gJLpA1eHqZdnWQiql1WZeT+HB9H9c=","imageWidth":3658,"imageHeight":2915,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"162111","handle":"doomsey_162111","verified":false,"dateVerified":null,"publicUsername":"doomsey","avatarFilePath":"media/auth/avatars/a6/a6c83b6f-7a93-4072-89e8-2091b01f9d32.png","badgesProfileLevel":{"profileLevel":9,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"585488","name":"iPad Mini Vertical Wall Mount","slug":"ipad-mini-vertical-wall-mount","ratingAvg":"0E-10","likesCount":3,"liked":null,"datePublished":"2023-09-17T18:57:12.820003+00:00","dateFeatured":null,"firstPublish":"2023-09-17T18:57:12.818059+00:00","downloadCount":59,"mmu":false,"category":{"id":"28","path":[{"id":"21","name":"Gadgets","nameEn":"Gadgets","__typename":"CategoryType"},{"id":"28","name":"Portable Devices","nameEn":"Portable Devices","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-09-17T18:57:12.845829+00:00","image":{"id":"2214972","filePath":"media/prints/585488/images/4670213_0c5cadbe-1849-4869-a8e7-119fd58ca70c/img_1765.jpg","rotation":0,"imageHash":"ItgFFQotboenlbp3aX9DWOd4j4/3","imageWidth":3024,"imageHeight":4032,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"162111","handle":"doomsey_162111","verified":false,"dateVerified":null,"publicUsername":"doomsey","avatarFilePath":"media/auth/avatars/a6/a6c83b6f-7a93-4072-89e8-2091b01f9d32.png","badgesProfileLevel":{"profileLevel":9,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"}],"featured":false,"__typename":"HighlightedModelsType"},"designer":false,"stripeAccountActive":null,"membership":null},"contests":[],"contestsResults":[],"prusameterPoints":null,"latestContestResult":null}}}

MMU3 Alternate cassette

Model files

MMU3 alt cassette A.stl

MMU3 alt cassette A.stl

MMU3 alt cassette B.stl

MMU3 alt cassette B.stl

Model origin

MMU3 printable parts

License