Subreddit directory
r/
3Dprinting
/r/3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
Subscribers
3.2M
Active users
—
Category
technology
Refreshed
1 day ago
Coverage score
2 / 4 evidence checks passed
Can you post here?
Thin data
Directional only
We do not yet have enough data to make a clean recommendation here.
Posting gates
- Min karma
- —
- Account age (days)
- —
- Submission type
- any
- NSFW
- No
Brands winning here
When cited Reddit discussions from 3Dprinting show up in our LLM-observation dataset, these brands appear most often.
1. SOLIDWORKS
254
2. Autodesk Fusion 360
173
3. Prusa Research
75
4. Bambu Lab
73
5. OctoPrint
30
6. Raspberry Pi
22
7. Prusa Core One
18
8. Creality
17
Based on 929 observed brand mentions across all indexed citation history. Rankings prioritize the last 30 days. Last updated Apr 20, 2026.
See the broader citation datasetBest times to post
Observed posting velocity across a seven-day, two-hour-bucket heatmap.
Not enough post-timing observations yet to map when this subreddit is most active.
Activity
A simple read on whether the subreddit is accelerating, stable, or contracting in recent observed data.
We do not yet have enough observed activity to describe how this subreddit is trending.
Related subreddits
Nearby communities worth comparing before you commit to one posting strategy.
Smaller, similar
Larger, stricter
Same audience
Reading between the lines
Three things most marketers miss about technology subreddits.
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Technical communities punish vagueness faster than they punish self-interest. A detailed teardown or benchmark can survive mild commercial intent. A fuzzy launch post usually cannot.
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Proof beats polish. Screenshots, code, data, and candid tradeoffs matter more here than careful brand language. If you sound too managed, the thread loses trust fast.
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The comment section is usually more important than the original post. Technology subreddits often decide whether you belong based on how you handle skeptical follow-up questions, not on the headline alone.
Managed path
If this community matters to your pipeline, scope it like a campaign.
Use 3Dprinting as one signal, not the whole strategy. The plan needs the surrounding communities, posting constraints, and the commercial context for your category.
The directory is informational. Live moderation behavior still decides what gets through.
Prefer the DIY path?
Signals is still the hands-on option for buying aged Reddit accounts or supporting a live post once you already know the execution plan.