Skip to content

Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3

idler_mk3.png Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
/-β€”@& / op oO Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
idler_v-slot.png Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
ef0e43d396858c6102d23a8b0b83f510.png Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
d8e6c264614fe1b79adb4feb7d71d45d.png Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
07b25ef095d46c4e6e616078173625d2.png Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
9235dcaab339f5bf29a7820a7f1901bc.png Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
47022ce21156304738e53f4e18d5f1e5.png Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
bc89d9c8a333880f0ec4f9d2c6fd589d.png Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
f76553eae357460d0fc4209131d262aa.png Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
y-idler_mount_stock-mk3.STL Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
y-idler_slide.STL Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
y-idler_slide_stock-mk3.STL Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
y-idler_mount_vslot.STL Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
y-idler_mount_tslot.STL Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
belt-holder_mk2_mk25.STL Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
belt-holder_mk3.STL Y-belt holder and tensioner for MK3 and Bear MK2, MK2.5, and MK3
Advertising
Share
Add to
Make
Advertising
?
Creation quality: 5.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.
  • 956 views
  • 1 like
  • 16 downloads
License
3D design format
Folder details Close
  • belt-holder_mk2_mk25.STL
  • belt-holder_mk3.STL
  • y-idler_mount_stock-mk3.STL
  • y-idler_mount_tslot.STL
  • y-idler_mount_vslot.STL
  • y-idler_slide.STL
  • y-idler_slide_stock-mk3.STL
  • zbrozek-y-axis.zip
    • 91292A115_TYPE 18-8 SS SOCKET HEAD CAP SCREW.SLDPRT
    • 91585A384_METRIC 18-8 STAINLESS STEEL DOWEL PIN.SLDPRT
    • 91828A211_TYPE 18-8 STAINLESS STEEL HEX NUT.SLDPRT
    • 92095A208_18-8 SS BUTTON-HEAD SOCKET CAP SCREW.SLDPRT
    • 93625A100_TYPE 18-8 STAINLESS STL NYLON-INSERT LOCKNUT.SLDPRT
    • belt-holder_mk2_mk25.SLDPRT
    • belt-holder_mk3.SLDPRT
    • y-idler_mount_stock-mk3.sldprt
    • y-idler_mount_tslot.sldprt
    • y-idler_mount_vslot.sldprt
    • y-idler_slide.SLDPRT
    • y-idler_slide_stock-mk3.SLDPRT
    • y-idler_stock-mk3.SLDASM
    • y-idler_tslot.SLDASM
    • y-idler_vslot.SLDASM
    • _GPA16GT2040_A_H3_b_2.sldprt

Learn more about the formats
Publication date 2022-09-09 at 17:14
?
Published to Thingiverse on: 2018-07-09 at 04:23
Design number 838585
Zbrozek

Zbrozek

3D printer file info

3D model description

Motivation

There's a lot to love about the Prusa printers, but the Y axis belt line is not one of them. A 16T pulley on the motor, a 20T pulley on the idler, and an offset going through the belt holder introduce Z axis forces on your bed as it traverses along Y. These parts allow you to use a 16T idler and get a perfectly parallel belt line, keeping the bed more level as it travels.

User RHDreambox designed replacement parts to fix this on the stock MK3, but relies on quality assembly to achieve belt tension. These parts provide adjustment via screws.

Built for Bear

User pekcitron (https://www.thingiverse.com/pekcitron/about) designed an excellent frame replacement for modern members of the Prusa i3 family of printers. He's also built an excellent replacement X axis and extruder that makes the belt line parallel, adds a built-in belt tensioner, and improves the extruder itself.

Things

There are a few parts in this "thing". You will need the right set of belt holder, idler slide, and idler mount for your printer. There are a few preassembled kits (zipped STLs) as well.
- Y axis belt holder for the mk42 bed
- Y axis belt holder for the mk52 bed
- Y axis idler slide for Bear users.
- Y axis idler slide for stock MK3 users. (Not yet tested; beware!)
- Y axis idler mount for Bear users (OpenBuilds V-slot)
- Y axis idler mount for almost-Bear users (Misumi T-slot)

Additional hardware

Bear tensioners

Stock-MK3 tensioner (not the stock idler!)

Belt holder

Updates!

2018-07-29

Feedback told me that the slot-mount holders were harder to center than they needed to be because the screws were behind the slide. Good criticism, so I made mounting ears instead. It was also called to my attention that the naming of the Y belt holder files wasn't quite right. Fixed! I'm also working on an easier-to-use version of the belt holder.

2018-12-25

It's a day off work so it's a day for maker-ing. I've back-ported the belt holders from my "Serious business" (https://www.thingiverse.com/thing:3122625) mod since the tooth profile is better. I've also modified the Bear version to have a slightly different V-slot profile on feedback that it was slightly too-big. Finally, I added the sight-line to the stock MK3 flavor mount. New Solidworks source is up. It's now the 2019 version. Happy holidays!

3D printing settings

-

Categories

All designs β€Ί Tools

Tags

Advertising

Issue with this design? Report a problem.

Would you like to support Cults?

You like Cults and you want to help us continue the adventure independently? Please note that we are a small team of 3 people, therefore it is very simple to support us to maintain the activity and create future developments. Here are 4 solutions accessible to all:

  • ADVERTISING: Disable your banner blocker (AdBlock, …) and click on our banner ads.

  • AFFILIATION: Make your purchases online by clicking on our affiliate links here Amazon.

  • DONATE: If you want, you can make a donation via Ko-Fi πŸ’œ.

  • WORD OF MOUTH: Invite your friends to come, discover the platform and the magnificent 3D files shared by the community!

Sharing and downloading on Cults3D guarantees that designs remain in makers community hands! And not in the hands of the 3D printing or software giants who own the competing platforms and exploit the designs for their own commercial interests.

Cults3D is an independent, self-financed site that is not accountable to any investor or brand. Almost all of the site's revenues are paid back to the platform's makers. The content published on the site serves only the interests of its authors and not those of 3D printer brands who also wish to control the 3D modeling market.
Currency: USD
Cults.
100% secure payment by credit card, PayPal, Apple Pay, Google Pay, etc.
View all payment options.