Sometimes the best way to promote a service is not by selling it directly, but by showing an impressive real-world project that naturally sparks interest. Here’s how one creator’s 3D printed wheelchair post in r/3Dprinting became a great example of this approach.

In this case, the author didn’t promote directly - but I decided to share it as a good example of non-direct promotion that you can adapt for your product or service.

Algorithm:

1. The author shared a high-quality photo of a colorful, 3D printed toddler mobility trainer in r/3Dprinting - a community of people who care deeply about design, printing techniques, and innovation.
2. In the main post, they described the project details:
   • Evolution of an open source design
   • 8kg weight, 160 hours of printing
   • No glue or hardware on the frame, only a few nuts, bolts, and wheel bearings
   • All design files will be published when finished
3. They also added a transparent comment, thanking the community for feedback and mentioning the 3D design studio they work with, as well as the nonprofit involved in the project - without turning it into a sales pitch.
4. The post attracted a lot of praise and constructive feedback from the community, which the creator engaged with actively.

This Is How It Looks Like

Why This Works as an Inspiration for Promotion:

• Targeting a community that already cares about the niche (in this case, 3D printing).
• Showing a tangible, well-made product instead of making a direct sales pitch.
• Mentioning the service or company naturally within the context of the project story.
• Being transparent and focusing on value rather than self-promotion.

How to Scale This:

• If you run a service or collaborate with a company, share projects where your skills or products played a role.
• Post in communities where members appreciate the technical, creative, or functional aspects of your work.
• Encourage feedback and discussion - it not only increases engagement but also builds trust.
• Keep the post focused on the project, and mention the service/company only when it adds context.

Related Ideas:

• Architects or interior designers posting finished design projects in home improvement subreddits.
• Software developers sharing open-source tools in programming communities while crediting their studio.
• Photographers posting creative shoots in niche photo subs, crediting the gear brand or studio support.

What users say

• “This is amazing work - love the colors and design!”
• “Such a thoughtful project. Looking forward to seeing the files published!”

This kind of reaction shows that by targeting the right community with the right project, you can gain appreciation, feedback, and visibility - all while subtly showcasing the services or companies you work with.

Someone also suggests posting this to other subreddits, for example r/FunctionalPrints.

Final Notes

• Lead with value, not sales.
• Choose a community that shares your passion for the topic.
• Use comments to provide extra context or mention your collaborators.
• Show your work in a way that makes people want to know more.