Skip to content

M42 Macro Extension Tube - 10mm/20mm/36mm

Creation quality: 4.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description

A quick remix of Murin's M42 macro extension tube. I chamfered the inner ring to make this print without supports, and adapted the size to standard extension tube ratios. It comes in a 10mm, 20mm, and 36mm size.

I would recommend first printing the 10mm to check the tolerances of your printer. If its not an exact fit as is, you can increase or decrease the x and y sizes in your slicer, while leaving the z the same. This allows you to easily make minor adjustments to the diameter.

As mentioned in the original, print this at 0.1mm or else the threads will be too thick to function properly.

3D printer file information

  • 3D design format: STL Folder details Close
    • m42-10mm-macroExtension.stl
    • m42-20mm-macroExtension.stl
    • m42-36mm-macroExtension.stl

    Learn more about the formats

  • Publication date: 2020-01-08 at 09:59





I'm just here making cool things for cool people. I have a ton of free models, but if you're feeling especially awesome consider supporting me by buying one of my bigger projects.

Issue with this design? Report a problem

Best sellers of the category Gadget

Add a comment

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 AdBlock banner blocker and click on our banner ads.

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

  • DONATE: If you want, you can make a donation via PayPal here.

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