Skip to content

7 Cylinder Radial Engine Model

Creation's quality: 4.8/5 (2 votes)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description

Note: This model is a correction to the original 8 cylinder radial engine model I built before. I realized after publishing the previous version that 4 stroke radial engines need to have odd number of cylinders. As a correction, I modified the the cylinder block to have 7 cylinders instead of 8. Most of the parts are identical to the previous one, so if you have already built the 8 cylinder version, you can re-make a few parts and make a more "realistic" radial engine model.

3D printing settings

To assemble, print the following parts, and follow the assembly procedure.

Cylinder Block
Handle *
Rotor *
Pin *
Hub Bottom (Requires support)
Hub Top
Piston (x 7ea) *
Rod (x 6ea) *
(Parts with an asterisk are identical to the 8 cylinder version. Note that you need 1 less of piston and rod.)
The "un-sectioned" cylinder block is also uploaded, but I have not tried printing it (I am not entirely sure if it the parts can be assembled into it).

I designed in some slack in each of the parts, but you may want to make sure that all parts fit with sufficient clearance for smooth motion

  • 3D file format: STL
  • Last update: 2020/04/20 at 15:34
  • Publication date: 2020/04/18 at 14:11



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, Gearbest 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!