{"data":{"model":{"id":"1134574","slug":"mmu3-buffer-solution-using-ceiling-mounted-weights","name":"MMU3 Buffer Solution Using Ceiling Mounted Weights","authorship":"author","club":false,"excludeCommercialUsage":false,"price":null,"eduProject":null,"ratingAvg":"0E-10","myRating":null,"ratingCount":0,"description":"

Basically the idea is to use weights (80 grams seems about right) to pull the slack out of the filament after ejecting. In order to route the tubes out of the front of the enclosure, I mounted the MMU backwards. Might prevent printing tall objects, but for what I print I don't care.

The tube router piece is screwed onto the front of the enclosure with M3 screws / nuts.

The filament hooks are designed to not get caught on other things.

Who knows if this will work long term - but it's been good for about 100 changes so far with no issues.

Filling the weight pieces with cement or something heavy.

In action

","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":"2025-01-04T20:53:46.083859+00:00","firstPublish":"2025-01-04T20:53:46.062288+00:00","datePublished":"2025-01-04T20:53:46.066179+00:00","dateCreatedThingiverse":null,"nsfw":false,"summary":"Yet another idea of how to avoid using the filament buffer.","likesCount":1,"makesCount":0,"liked":null,"printDuration":null,"numPieces":0,"weight":null,"nozzleDiameters":null,"usedMaterial":null,"layerHeights":null,"mmu":false,"materials":[],"dateFeatured":null,"downloadCount":1,"displayCount":100,"filesCount":3,"privateCollectionsCount":0,"publicCollectionsCount":0,"pdfFilePath":"media/prints/1134574/pdfs/1134574-mmu3-buffer-solution-using-ceiling-mounted-weights-698440d4-baa6-47cb-aae6-cc6a4c20fc66.pdf","commentCount":1,"userGcodeCount":0,"remixCount":0,"canBeRated":false,"printer":null,"image":{"id":"3941946","filePath":"media/prints/1134574/images/8561329_2390aa00-6c7d-49eb-bae8-a6e581ea33de_205a29e3-146e-410e-959b-eaee3f37ddab/img_0048.jpg","rotation":0,"imageHash":"4ygOFYJ2d3efaHiZd3eIeHKPF/h4","imageWidth":5712,"imageHeight":4284,"__typename":"PrintImageType"},"images":[{"id":"3941946","filePath":"media/prints/1134574/images/8561329_2390aa00-6c7d-49eb-bae8-a6e581ea33de_205a29e3-146e-410e-959b-eaee3f37ddab/img_0048.jpg","rotation":0,"imageHash":"4ygOFYJ2d3efaHiZd3eIeHKPF/h4","imageWidth":5712,"imageHeight":4284,"__typename":"PrintImageType"},{"id":"3941944","filePath":"media/prints/1134574/images/8561332_9ce6a7cc-9b48-4ed7-9818-edda2fab7edb_b9fc29cf-e02b-4fc1-a352-ea89419ed986/img_0047.jpg","rotation":0,"imageHash":"HTkKFYK2mHlfd3eadpd4hzBLBcAz","imageWidth":5712,"imageHeight":4284,"__typename":"PrintImageType"},{"id":"3941945","filePath":"media/prints/1134574/images/8561330_f348761e-e99a-4b3f-abb1-f1fdab2a0d2f_a1494d4b-e744-42e1-b2e5-99309f97948f/img_0045.jpg","rotation":0,"imageHash":"mCgOFYS5aImnZ3h5iAdmiFNvN/WF","imageWidth":5712,"imageHeight":4284,"__typename":"PrintImageType"},{"id":"3941947","filePath":"media/prints/1134574/images/8561331_a86a923a-7313-41c9-8eea-e836872735fa_392625f5-b37f-413d-9604-512ac970e0bc/img_0046.jpg","rotation":0,"imageHash":"WRgKDYL1Y3rCqGaAh8hHduB2Bp6G","imageWidth":5712,"imageHeight":4284,"__typename":"PrintImageType"}],"tags":[{"name":"buffer","id":"910","__typename":"TagType"},{"name":"mmu3","id":"13020","__typename":"TagType"}],"thingiverseLink":null,"filesType":null,"previewFile":{"id":"4735624","filePreviewPath":"media/prints/1134574/previews/018a4026ab214ada552ceda269b3beb51aecfb41.png","__typename":"STLType"},"license":{"id":"7","disallowRemixing":false,"__typename":"LicenseType"},"remixParents":[],"remixDescription":null,"__typename":"PrintType","user":{"id":"249421","handle":"DJBB_249421","verified":false,"dateVerified":null,"publicUsername":"DJBB","avatarFilePath":"media/auth/avatars/2c/2c1ec780-36f3-4e57-95c3-9ff7ddcee3f4.jpg","badgesProfileLevel":{"profileLevel":14,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isFollowedByMe":false,"canBeFollowed":true,"billingAccountType":"personal","lowestTierPrice":null,"highlightedModels":{"models":[{"id":"464641","name":"RAW Cone Filler for Making Joints","slug":"raw-cone-filler-for-making-joints","ratingAvg":"4.9090909091","likesCount":238,"liked":null,"datePublished":"2023-06-22T21:47:19.030747+00:00","dateFeatured":null,"firstPublish":"2023-04-28T01:14:51.641151+00:00","downloadCount":555,"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":"2023-06-22T21:47:19.044666+00:00","image":{"id":"1974886","filePath":"media/prints/464641/images/4142430_bfa8297e-f492-487a-ad9c-c2e410f82bd0/img_4512.jpg","rotation":0,"imageHash":"XGoKDgIAi1mpdpe3dnqHeqeXZ9CgWQo=","imageWidth":2510,"imageHeight":2939,"__typename":"PrintImageType"},"nsfw":true,"club":false,"price":null,"user":{"id":"249421","handle":"DJBB_249421","verified":false,"dateVerified":null,"publicUsername":"DJBB","avatarFilePath":"media/auth/avatars/2c/2c1ec780-36f3-4e57-95c3-9ff7ddcee3f4.jpg","badgesProfileLevel":{"profileLevel":14,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"latestContestResult":null,"__typename":"PrintType"},{"id":"243063","name":"2X USB C Holder for MacBook So You Can Use Your Cheap Dumb Dock that Doesn't Work Correctly","slug":"2x-usb-c-holder-for-macbook-so-you-can-use-your-ch","ratingAvg":"4.0000000000","likesCount":66,"liked":null,"datePublished":"2022-07-16T19:55:01.776193+00:00","dateFeatured":null,"firstPublish":"2022-07-16T19:55:01.776193+00:00","downloadCount":312,"mmu":false,"category":{"id":"27","path":[{"id":"21","name":"Gadgets","nameEn":"Gadgets","__typename":"CategoryType"},{"id":"27","name":"Computers","nameEn":"Computers","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-07-16T19:56:01.675363+00:00","image":{"id":"1074127","filePath":"media/prints/243063/images/2193554_95ad8fa8-d6b9-454d-97a7-74b33f90790f/img_3269-large.jpeg","rotation":0,"imageHash":"m0kKJQSHVqR594pnp1R5p2aAqge8","imageWidth":960,"imageHeight":1280,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"249421","handle":"DJBB_249421","verified":false,"dateVerified":null,"publicUsername":"DJBB","avatarFilePath":"media/auth/avatars/2c/2c1ec780-36f3-4e57-95c3-9ff7ddcee3f4.jpg","badgesProfileLevel":{"profileLevel":14,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"latestContestResult":null,"__typename":"PrintType"},{"id":"243071","name":"Flower Press","slug":"flower-press","ratingAvg":"0E-10","likesCount":54,"liked":null,"datePublished":"2022-07-16T20:03:38.273706+00:00","dateFeatured":null,"firstPublish":"2022-07-16T20:03:38.273706+00:00","downloadCount":81,"mmu":false,"category":{"id":"41","path":[{"id":"13","name":"Art & Design","nameEn":"Art & Design","__typename":"CategoryType"},{"id":"41","name":"Other Art & Designs","nameEn":"Other Art & Designs","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-07-20T17:29:22.719308+00:00","image":{"id":"1080497","filePath":"media/prints/243071/images/2207166_5be537d2-25b9-4a16-b7d1-a90639226d5b/img_3282-large.jpeg","rotation":0,"imageHash":"WRgKFQR5aY91d5dIiXp3d7CBXwm3","imageWidth":960,"imageHeight":1280,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"249421","handle":"DJBB_249421","verified":false,"dateVerified":null,"publicUsername":"DJBB","avatarFilePath":"media/auth/avatars/2c/2c1ec780-36f3-4e57-95c3-9ff7ddcee3f4.jpg","badgesProfileLevel":{"profileLevel":14,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"latestContestResult":null,"__typename":"PrintType"},{"id":"425333","name":"Thin-as-possible Mechanical Pencil + Bookmark","slug":"thin-as-possible-mechanical-pencil-bookmark","ratingAvg":"4.0000000000","likesCount":53,"liked":null,"datePublished":"2023-03-24T05:10:20.703292+00:00","dateFeatured":null,"firstPublish":"2023-03-24T05:09:42.295446+00:00","downloadCount":134,"mmu":false,"category":{"id":"29","path":[{"id":"3","name":"Household","nameEn":"Household","__typename":"CategoryType"},{"id":"29","name":"Office","nameEn":"Office","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-03-24T05:10:20.716899+00:00","image":{"id":"1712962","filePath":"media/prints/425333/images/3575497_585cad10-ea03-47d4-8b4c-5e5014727578/pic.jpg","rotation":0,"imageHash":"bAgGDoD6yriPhoZ5d3eIV4iYd3B5bPY=","imageWidth":1512,"imageHeight":1230,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"249421","handle":"DJBB_249421","verified":false,"dateVerified":null,"publicUsername":"DJBB","avatarFilePath":"media/auth/avatars/2c/2c1ec780-36f3-4e57-95c3-9ff7ddcee3f4.jpg","badgesProfileLevel":{"profileLevel":14,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"latestContestResult":null,"__typename":"PrintType"},{"id":"268875","name":"Cassette \"Shelf\" - Modular","slug":"cassette-shelf-modular","ratingAvg":"0E-10","likesCount":19,"liked":null,"datePublished":"2022-08-30T20:44:31.913533+00:00","dateFeatured":null,"firstPublish":"2022-08-30T20:44:31.905727+00:00","downloadCount":77,"mmu":false,"category":{"id":"25","path":[{"id":"21","name":"Gadgets","nameEn":"Gadgets","__typename":"CategoryType"},{"id":"25","name":"Audio","nameEn":"Audio","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-08-30T20:44:31.926708+00:00","image":{"id":"1177672","filePath":"media/prints/268875/images/2391427_521033a2-1479-4794-81e7-f7fde58203e1/img_3377-large.jpeg","rotation":0,"imageHash":"nigKHQSpZmmE93cXqHeVWLmAvQuo","imageWidth":960,"imageHeight":1280,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"249421","handle":"DJBB_249421","verified":false,"dateVerified":null,"publicUsername":"DJBB","avatarFilePath":"media/auth/avatars/2c/2c1ec780-36f3-4e57-95c3-9ff7ddcee3f4.jpg","badgesProfileLevel":{"profileLevel":14,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"latestContestResult":null,"__typename":"PrintType"},{"id":"516277","name":"Cassette Tape Dispenser (for making tape loops)","slug":"cassette-tape-dispenser-for-making-tape-loops","ratingAvg":"0E-10","likesCount":18,"liked":null,"datePublished":"2023-06-29T19:53:07.897231+00:00","dateFeatured":null,"firstPublish":"2023-06-29T19:53:07.894786+00:00","downloadCount":56,"mmu":false,"category":{"id":"95","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"95","name":"Music","nameEn":"Music","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-06-29T19:53:07.909823+00:00","image":{"id":"1991636","filePath":"media/prints/516277/images/4180087_d0824348-f136-45b9-8fb8-6d088bc4dc0b/img_4543.jpg","rotation":0,"imageHash":"ISkOHQTaqIt491eXeHa3WKFQDAq1","imageWidth":3024,"imageHeight":4032,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"249421","handle":"DJBB_249421","verified":false,"dateVerified":null,"publicUsername":"DJBB","avatarFilePath":"media/auth/avatars/2c/2c1ec780-36f3-4e57-95c3-9ff7ddcee3f4.jpg","badgesProfileLevel":{"profileLevel":14,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"latestContestResult":null,"__typename":"PrintType"},{"id":"188671","name":"DJBB Arcade Button Midi Controller","slug":"djbb-arcade-button-midi-controller","ratingAvg":"0E-10","likesCount":15,"liked":null,"datePublished":"2022-05-01T20:18:04.210725+00:00","dateFeatured":null,"firstPublish":"2022-05-01T20:18:04.210725+00:00","downloadCount":33,"mmu":false,"category":{"id":"95","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"95","name":"Music","nameEn":"Music","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2022-05-01T20:18:04.225662+00:00","image":{"id":"868446","filePath":"media/prints/188671/images/1757559_18772b08-54fb-40ba-9108-6d78cc8353d9/front-pic-full.jpg","rotation":0,"imageHash":"FygGFwigiKh6l4eJeFiJhoh4awu3RYAD","imageWidth":1500,"imageHeight":1500,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"249421","handle":"DJBB_249421","verified":false,"dateVerified":null,"publicUsername":"DJBB","avatarFilePath":"media/auth/avatars/2c/2c1ec780-36f3-4e57-95c3-9ff7ddcee3f4.jpg","badgesProfileLevel":{"profileLevel":14,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"latestContestResult":null,"__typename":"PrintType"},{"id":"523076","name":"Cassette Tape Replacement Parts (wheel, pressure pads, etc.)","slug":"cassette-tape-replacement-parts-wheel-pressure-pad","ratingAvg":"0E-10","likesCount":14,"liked":null,"datePublished":"2023-07-12T18:12:20.423628+00:00","dateFeatured":null,"firstPublish":"2023-07-08T21:54:01.059223+00:00","downloadCount":78,"mmu":false,"category":{"id":"95","path":[{"id":"48","name":"Hobby & Makers","nameEn":"Hobby & Makers","__typename":"CategoryType"},{"id":"95","name":"Music","nameEn":"Music","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-07-12T18:12:20.439193+00:00","image":{"id":"2014082","filePath":"media/prints/523076/images/4230662_844390fc-9843-4ec7-a645-5a945e61abf9/img_4607.jpg","rotation":0,"imageHash":"YSkGFoKGl3i7hndwh1emh4indHB4Bmc=","imageWidth":2593,"imageHeight":2369,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"249421","handle":"DJBB_249421","verified":false,"dateVerified":null,"publicUsername":"DJBB","avatarFilePath":"media/auth/avatars/2c/2c1ec780-36f3-4e57-95c3-9ff7ddcee3f4.jpg","badgesProfileLevel":{"profileLevel":14,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"latestContestResult":null,"__typename":"PrintType"}],"featured":false,"__typename":"HighlightedModelsType"},"designer":false,"stripeAccountActive":null,"membership":null},"contests":[],"contestsResults":[],"prusameterPoints":null,"latestContestResult":null}}}