{"data":{"model":{"id":"2016","slug":"prusa-i3-mk-filament-guide-clipon","name":"Prusa i3 MK Filament Guide ClipOn","authorship":"author","club":false,"excludeCommercialUsage":false,"price":null,"eduProject":null,"ratingAvg":"4.9051724138","myRating":null,"ratingCount":116,"description":"

The Prusa i3 kit comes without a filament guide - this is a problem when using stiffer filaments on small spools. The filament tend to unwind and get stuck when printing.

This filament guide is a two part solution, a base with a new ClipOn design to lock the guide to the Prusa frame and an interchangeable filament guide (loop).

The ClipOn Holder (base) it is securely locked to the aluminum frame, but still easy to re-position.
The loop has a friction fit into the holder that closes the filament loading slot and prevents the filament from escaping the loop when printing.

Selecting models:

Select a ClipOn Holder with or without filament store hole.
Select a Loop size and if it should have filament slot.

I often forget to put the filament through the loop when loading, the solution is the guide with filament slot.

If the holder has a loose fit, scaling it to 99% of original size should give a more tight fit.

Let me know in the comments if you have ideas or changes to the design.

See also:
Prusa i3 MK Filament Guide Dust Clearner for ClipOn base to use with the same holder.

>> Please leave a like and make me happy\u2026 :) Thank you!

Print instructions

Print with PLA, ABS, PET-G or similar.

2 perimeters, 3 top and 2 bottom layers 30% infill.

Gcode file is for printing one holder and large loop in Devil Design PETG (MK2/S, MK2.5/S, MK3/S, MK3S+).

Post printing:
The loop should fit into the base, but you may need to smooth the loop guide surface with a knife or sand paper to get an easy friction fit into the base.

","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":"2023-01-22T02:37:57.723653+00:00","firstPublish":"2019-04-29T23:24:15.784547+00:00","datePublished":"2023-01-22T02:37:57.697643+00:00","dateCreatedThingiverse":null,"nsfw":false,"summary":"The Prusa i3 kit comes without a filament guide - this is a problem when using stiffer filaments on small spools.","likesCount":468,"makesCount":88,"liked":null,"printDuration":"0.73","numPieces":1,"weight":"6.00","nozzleDiameters":["0.40"],"usedMaterial":null,"layerHeights":["0.20"],"mmu":false,"materials":[{"id":"8","name":"PET","__typename":"MaterialTypeType"}],"dateFeatured":null,"downloadCount":4721,"displayCount":16678,"filesCount":7,"privateCollectionsCount":474,"publicCollectionsCount":354,"pdfFilePath":"media/prints/2016/pdfs/2016-prusa-i3-mk-filament-guide-clipon-fe41c831-c7d0-4091-99e9-e20a97fd3294.pdf","commentCount":201,"userGcodeCount":0,"remixCount":2,"canBeRated":false,"printer":{"id":"1","name":"Prusa MK3/S/S+","__typename":"PrinterTypeType"},"image":{"id":"321607","filePath":"media/prints/2016/images/641382_93a4ef6f-9c09-4a03-9c63-baa6367d0fc5/p1140870-edit.jpg","rotation":0,"imageHash":"EggKFYJ/SJSMdnmKdTd3eQNbPdDU","imageWidth":3665,"imageHeight":2749,"__typename":"PrintImageType"},"images":[{"id":"321607","filePath":"media/prints/2016/images/641382_93a4ef6f-9c09-4a03-9c63-baa6367d0fc5/p1140870-edit.jpg","rotation":0,"imageHash":"EggKFYJ/SJSMdnmKdTd3eQNbPdDU","imageWidth":3665,"imageHeight":2749,"__typename":"PrintImageType"},{"id":"321608","filePath":"media/prints/2016/images/641383_a9f97b9b-ec94-4523-83b8-91aa231a5076/p1140874-edit.jpg","rotation":0,"imageHash":"VhgGHQQ4mSrD20dnlN4HdhdvePF2","imageWidth":1050,"imageHeight":1400,"__typename":"PrintImageType"},{"id":"8971","filePath":"media/prints/2016/images/12520_3a6421fa-c871-4c81-bef9-8d04be180419/guide-on-frame-model-3-angle.jpg","rotation":0,"imageHash":"IPcFFYBoIneAmnh/hSd5afpifAmm","imageWidth":1237,"imageHeight":926,"__typename":"PrintImageType"},{"id":"8970","filePath":"media/prints/2016/images/12514_65ef491b-6b36-4e85-86e2-a66bc128a725/angled-small-closed-loop-and-filament-storage.jpg","rotation":0,"imageHash":"IPcFFYC1OZeVV6d/ZRl3mPeTmgip","imageWidth":1157,"imageHeight":888,"__typename":"PrintImageType"}],"tags":[{"name":"upgrade","id":"1","__typename":"TagType"},{"name":"prusa","id":"2","__typename":"TagType"},{"name":"spool","id":"61","__typename":"TagType"},{"name":"mmu","id":"87","__typename":"TagType"},{"name":"frame","id":"131","__typename":"TagType"},{"name":"mk3","id":"133","__typename":"TagType"},{"name":"holder","id":"165","__typename":"TagType"},{"name":"mk2","id":"227","__typename":"TagType"},{"name":"original","id":"228","__typename":"TagType"},{"name":"filament","id":"303","__typename":"TagType"},{"name":"originalprusai3mk3","id":"854","__typename":"TagType"},{"name":"mk3s","id":"1023","__typename":"TagType"},{"name":"mmu2s","id":"1919","__typename":"TagType"},{"name":"mmu2","id":"1920","__typename":"TagType"},{"name":"mk2s","id":"1959","__typename":"TagType"},{"name":"loop","id":"2208","__typename":"TagType"},{"name":"guide","id":"2352","__typename":"TagType"},{"name":"smart","id":"2430","__typename":"TagType"},{"name":"snapfit","id":"2474","__typename":"TagType"},{"name":"snapon","id":"2476","__typename":"TagType"},{"name":"plus","id":"2678","__typename":"TagType"},{"name":"filamentguide","id":"2787","__typename":"TagType"},{"name":"clipon","id":"3248","__typename":"TagType"},{"name":"mk25","id":"3249","__typename":"TagType"},{"name":"mk25s","id":"3250","__typename":"TagType"},{"name":"roll","id":"3420","__typename":"TagType"},{"name":"filamentclip","id":"4372","__typename":"TagType"},{"name":"originalprusamk2s","id":"4489","__typename":"TagType"},{"name":"originalprusamk3","id":"6369","__typename":"TagType"},{"name":"clickon","id":"7437","__typename":"TagType"},{"name":"mk3splus","id":"32271","__typename":"TagType"},{"name":"filamentroll","id":"35223","__typename":"TagType"}],"thingiverseLink":null,"filesType":"GCODE","previewFile":{"id":"6415","filePreviewPath":"media/prints/2016/stls/12516_a37f3a0f-c3a2-4556-b5d8-1d323932eb9a/filament-guide-clip-angle_preview.png","__typename":"STLType"},"license":{"id":"4","disallowRemixing":false,"__typename":"LicenseType"},"remixParents":[{"id":"189613","modelId":null,"modelName":null,"modelAuthor":null,"model":null,"url":"https://www.thingiverse.com/thing:1940114","urlAuthor":"Area51","urlImage":"https://cdn.thingiverse.com/renders/83/d4/a8/30/c5/24286dbe964be4d9349f690552e161ce_preview_featured.jpg","urlTitle":"Prusa i3 MK2/S/3 Filament Guide ClipOn","urlLicense":null,"urlLicenseText":null,"__typename":"PrintRemixType"}],"remixDescription":null,"__typename":"PrintType","user":{"id":"1574","handle":"Area51","verified":false,"dateVerified":null,"publicUsername":"Area51","avatarFilePath":"media/auth/avatars/65/65e82530-2863-4a09-ba56-4ccdd5903a57.png","badgesProfileLevel":{"profileLevel":25,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isFollowedByMe":false,"isHiddenForMe":false,"canBeFollowed":true,"billingAccountType":"personal","lowestTierPrice":null,"highlightedModels":{"models":[{"id":"114308","name":"Sorting Tray with Funnel","slug":"sorting-tray-with-funnel","ratingAvg":"4.9906542056","likesCount":1841,"liked":null,"datePublished":"2023-01-22T02:33:17.944388+00:00","dateFeatured":null,"firstPublish":"2022-01-07T01:11:28.789843+00:00","downloadCount":4566,"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":"2023-01-22T02:33:17.978853+00:00","image":{"id":"581274","filePath":"media/prints/114308/images/1121503_fb2117ee-e0ca-4bba-9677-5e8391189447/p1150815-pp.jpg","rotation":0,"imageHash":"kSgKFYRYY5ikV3dQqld3ZvK1Im4L","imageWidth":1400,"imageHeight":1050,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"1574","handle":"Area51","verified":false,"dateVerified":null,"publicUsername":"Area51","avatarFilePath":"media/auth/avatars/65/65e82530-2863-4a09-ba56-4ccdd5903a57.png","badgesProfileLevel":{"profileLevel":25,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"808247","name":"Aether Karambit Knife","slug":"aether-karambit-knife","ratingAvg":"5.0000000000","likesCount":33,"liked":null,"datePublished":"2024-03-25T10:41:48.542762+00:00","dateFeatured":null,"firstPublish":"2024-03-18T01:16:43.041611+00:00","downloadCount":168,"mmu":true,"category":{"id":"81","path":[{"id":"76","name":"Costumes & Accessories","nameEn":"Costumes & Accessories","__typename":"CategoryType"},{"id":"81","name":"Props","nameEn":"Props","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2024-03-25T10:41:48.574230+00:00","image":{"id":"2919688","filePath":"media/prints/808247/images/6261944_437d5ed4-31ed-4bb3-86e9-62f2d9117efc_26ed7827-6f3f-4e4f-9ad9-de45ab7e5070/p1200655-p-cover.jpg","rotation":0,"imageHash":"4CgGFYKvWpZ5gne0cYqrUwdxfyBH","imageWidth":1600,"imageHeight":1200,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"1574","handle":"Area51","verified":false,"dateVerified":null,"publicUsername":"Area51","avatarFilePath":"media/auth/avatars/65/65e82530-2863-4a09-ba56-4ccdd5903a57.png","badgesProfileLevel":{"profileLevel":25,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"721727","name":"Nextruder Nozzle Compact Storage","slug":"nextruder-nozzle-compact-storage","ratingAvg":"5.0000000000","likesCount":8,"liked":null,"datePublished":"2024-08-24T22:46:57.215907+00:00","dateFeatured":null,"firstPublish":"2024-01-14T22:39:11.839109+00:00","downloadCount":45,"mmu":false,"category":{"id":"40","path":[{"id":"1","name":"3D Printers","nameEn":"3D Printers","__typename":"CategoryType"},{"id":"40","name":"Accessories","nameEn":"Accessories","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2024-08-24T22:46:57.250758+00:00","image":{"id":"2909058","filePath":"media/prints/721727/images/6239200_a1808237-f44c-430d-bb9f-545c0c15bdfd_5df65fab-3351-48d0-8d66-0083818ff1de/p1200474-p-cover.jpg","rotation":0,"imageHash":"VTkGFYSCj2aYwnpmlgi6kiavYuMH","imageWidth":1600,"imageHeight":1200,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"1574","handle":"Area51","verified":false,"dateVerified":null,"publicUsername":"Area51","avatarFilePath":"media/auth/avatars/65/65e82530-2863-4a09-ba56-4ccdd5903a57.png","badgesProfileLevel":{"profileLevel":25,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"141335","name":"Faucet/Tap water filter M24","slug":"faucettap-water-filter-m24","ratingAvg":"4.7500000000","likesCount":423,"liked":null,"datePublished":"2023-01-22T02:39:52.075811+00:00","dateFeatured":null,"firstPublish":"2022-02-28T00:34:27.606920+00:00","downloadCount":1821,"mmu":false,"category":{"id":"45","path":[{"id":"3","name":"Household","nameEn":"Household","__typename":"CategoryType"},{"id":"45","name":"Other House Equipment","nameEn":"Other House Equipment","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-01-22T02:39:52.115109+00:00","image":{"id":"679509","filePath":"media/prints/141335/images/1338987_e4722158-58f4-4571-a743-79420d109089/p1160152-pp-cover.jpg","rotation":0,"imageHash":"YBgKFYRwi1knuYdfqriWl6iQiwqZ","imageWidth":1440,"imageHeight":1080,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"1574","handle":"Area51","verified":false,"dateVerified":null,"publicUsername":"Area51","avatarFilePath":"media/auth/avatars/65/65e82530-2863-4a09-ba56-4ccdd5903a57.png","badgesProfileLevel":{"profileLevel":25,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"241692","name":"Filament Splicing Jig (Remix)","slug":"filament-splicing-jig-remix","ratingAvg":"4.7338709677","likesCount":1495,"liked":null,"datePublished":"2023-01-22T02:37:15.109628+00:00","dateFeatured":null,"firstPublish":"2022-07-14T03:17:04.008769+00:00","downloadCount":8691,"mmu":true,"category":{"id":"40","path":[{"id":"1","name":"3D Printers","nameEn":"3D Printers","__typename":"CategoryType"},{"id":"40","name":"Accessories","nameEn":"Accessories","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-01-22T02:37:15.143700+00:00","image":{"id":"1069382","filePath":"media/prints/241692/images/2182369_ac4fa487-9fd6-44b4-958a-686ac8a5360a/p1170174-p.jpg","rotation":0,"imageHash":"IfkJFYK8eZh/d4d+ZEiId6ygvFQJ","imageWidth":1600,"imageHeight":1200,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"1574","handle":"Area51","verified":false,"dateVerified":null,"publicUsername":"Area51","avatarFilePath":"media/auth/avatars/65/65e82530-2863-4a09-ba56-4ccdd5903a57.png","badgesProfileLevel":{"profileLevel":25,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"2016","name":"Prusa i3 MK Filament Guide ClipOn","slug":"prusa-i3-mk-filament-guide-clipon","ratingAvg":"4.9051724138","likesCount":468,"liked":null,"datePublished":"2023-01-22T02:37:57.697643+00:00","dateFeatured":null,"firstPublish":"2019-04-29T23:24:15.784547+00:00","downloadCount":4721,"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":"2023-01-22T02:37:57.723653+00:00","image":{"id":"321607","filePath":"media/prints/2016/images/641382_93a4ef6f-9c09-4a03-9c63-baa6367d0fc5/p1140870-edit.jpg","rotation":0,"imageHash":"EggKFYJ/SJSMdnmKdTd3eQNbPdDU","imageWidth":3665,"imageHeight":2749,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"1574","handle":"Area51","verified":false,"dateVerified":null,"publicUsername":"Area51","avatarFilePath":"media/auth/avatars/65/65e82530-2863-4a09-ba56-4ccdd5903a57.png","badgesProfileLevel":{"profileLevel":25,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"},{"id":"8805","name":"GT2 Timing Belt Holder/Clip","slug":"gt2-timing-belt-holderclip","ratingAvg":"5.0000000000","likesCount":93,"liked":null,"datePublished":"2023-12-05T13:24:43.549135+00:00","dateFeatured":null,"firstPublish":"2019-11-03T16:19:09.243121+00:00","downloadCount":1298,"mmu":false,"category":{"id":"2","path":[{"id":"1","name":"3D Printers","nameEn":"3D Printers","__typename":"CategoryType"},{"id":"2","name":"Other Printer Parts & Upgrades","nameEn":"Other Printer Parts & Upgrades","__typename":"CategoryType"}],"__typename":"CategoryType"},"modified":"2023-12-05T13:24:44.038289+00:00","image":{"id":"37989","filePath":"media/prints/8805/images/69398_5c9be2b7-62ad-4f26-840c-21aa214f2566/p1090970_-_thingiverse_8805.jpg","rotation":0,"imageHash":"lQgOFYKfd3iWd3dmh1iGifmiXD/7","imageWidth":1282,"imageHeight":952,"__typename":"PrintImageType"},"nsfw":false,"club":false,"price":null,"user":{"id":"1574","handle":"Area51","verified":false,"dateVerified":null,"publicUsername":"Area51","avatarFilePath":"media/auth/avatars/65/65e82530-2863-4a09-ba56-4ccdd5903a57.png","badgesProfileLevel":{"profileLevel":25,"__typename":"BadgesProfileLevelType"},"__typename":"UserType","isHiddenForMe":false},"latestContestResult":null,"__typename":"PrintType"}],"featured":true,"__typename":"HighlightedModelsType"},"designer":false,"stripeAccountActive":null,"membership":null},"contests":[],"contestsResults":[],"prusameterPoints":null,"latestContestResult":null}}}