{"data":{"make":{"id":"1240095","created":"2023-11-01T08:59:59.290549+00:00","edited":null,"deleted":null,"isMake":true,"printer":{"id":"1","name":"Prusa MK3/S/S+","__typename":"PrinterTypeType"},"parent":null,"author":{"id":"103007","handle":"makitprojects_103007","verified":false,"dateVerified":null,"publicUsername":"makitprojects","avatarFilePath":"media/auth/avatars/68/68241335-6398-4614-aafa-35da44e88606.png","badgesProfileLevel":{"profileLevel":16,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"images":[{"id":"1078775","filePath":"media/comment_images/53/226eef-38e4-45b9-a512-008099e448dd/pxl_20230816_154652733.jpg","rotation":0,"__typename":"CommentImageType"},{"id":"1078773","filePath":"media/comment_images/7c/09d24e-6a2f-4b8c-9543-eaea5bee833e/pxl_20230816_154700070.jpg","rotation":0,"__typename":"CommentImageType"},{"id":"1078774","filePath":"media/comment_images/70/596d5e-19ec-401f-9bb1-3a31d7892377/pxl_20230816_154646283.jpg","rotation":0,"__typename":"CommentImageType"},{"id":"1078772","filePath":"media/comment_images/bd/3eeea4-cd42-499d-93e1-ee356061dbf6/pxl_20230816_154639025.jpg","rotation":0,"__typename":"CommentImageType"}],"mentions":[],"text":"What do you think about theses colors?","rating":null,"likesCount":4,"liked":null,"membershipAgeMonths":null,"modelData":{"model":{"id":"318896","ratingAvg":"4.9444444444","ratingCount":18,"__typename":"PrintType"},"__typename":"ModelDataType"},"membershipTier":null,"__typename":"PrintCommentType","model":{"eligibleForNomination":false,"id":"318896","slug":"openrc-tractor-mk3-tea20","name":"OpenRC Tractor MK3 TEA20","authorship":"author","club":false,"excludeCommercialUsage":false,"price":null,"eduProject":null,"ratingAvg":"4.9444444444","myRating":null,"ratingCount":18,"description":"

The new OpenRC Tractor is finally here!!

It's been almost two years since I started working on this new MK3 TEA20 project.

Now, after hundreds of hours of design, test, print, redesign\u2026 it\u2019s finally here and all the hard work has paid off! I think it turned out great and I\u2019m very excited to see if you like it!

It has been completely designed from scratch and has many improvements over previous versions:

Dual motors
Much more detail and realism
Much easier electronics management
No differential (forget grinding problems)
Ackerman style steering
Standard servo
3 part wheels (beadlock style), so tires can be printed in any filament, flexible or not.

My plan is to continue working on this project. I think it has endless possibilities. Sometimes, it\u2019s difficult to find free time for this, but even if sometimes slows down, the OpenRC Tractor never stops!

I have several tools and addons for my tractors and will update materials and upload them to printables progressively, stay tunned!

Instructions

Check these resources to help you with your tractor build and don\u2019t forget to click \u201clike\u201d and share makes of your tractor.

List of materials and printed parts (BOM spreadsheet)
- 3rd party hardware kit here.
Assembly video
Electronics connections
Video in action

Considerations

Some parts have a \u201csacrificial layer\u201d. It was made this way to avoid using supports. You\u2019ll just have to remove them manually before assembling. I use the tool from the BOM spreadsheet.
All parts should be correctly oriented to print the way they are (let me know if they\u2019re not).
Total printing time is around 70 hours but of course that depends on the printer/settings you use.
Recommended printing settings can be found in BOM spreadsheet
I used a piece of TPU to mimic motor pipes

Changes

16-12-2022: Added part 9tight for tight fit (perfect with my prusa)

07-06-2023: Added connection instructions picture

29-05-2024: Added a loose 38 part with more room for the servo arm.

06-02-2025: Added part 28 v2 (28-OpenRC Tractor- rear center arm support V2_x2) with improved geometry for rear arm attachments.

Special thanks to my friend Nicolas for all the support and help!

If you like my tractor, please click \"like\", and post a make. This will help me to win some prusameters to keep printing!

You can also support my work with a coffee or a tip!

Thank you!!!

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OpenRC Tractor MK3 TEA20

OpenRC Tractor MK3 TEA20

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