r/3dprinter
3D Printer
Founded October 2012 · Public — anyone can post
Anything about 3d printing and 3d printers
Members
80,046
80K
Online now
—
not captured in the last snapshot
Posts per day
—
no sample yet
Comments per post
—
no sample yet
Growth · 7d
—
not enough history yet
Growth · 30d
+3.7%
+2.9K members · ≈32d
Promo tolerance
—
not assessed yet
Last post
—
no sample yet
Distinct posters
—
no sample yet
Tracking since Aug 5 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.
Member growth
Similar by content
Communities that discuss what r/3dprinter discusses.
A place to discuss all things 3D Printing related! This sub is community driven and aims to be a place to express ideas and grow together in this amazing hobby. Happy printing!
/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.
A place to compare, review, and discuss 3D printers. Share experiences, ask questions, and help others choose the right printer for their needs.
A community for discovering, reviewing, and discussing tools that make 3D printing easier.... apps, slicers, calculators, diagnostics, and everything in between. Share what's working for you.
All things related to Prusa 3D, including Printers, Prusament, and Prusa Slicer. Show off your prints, or ask a question.
See the full lists on similar subreddits.
r/3dprinter — frequently asked
How many members does r/3dprinter have?
r/3dprinter has 80,046 members as of our most recent crawl on Sep 7. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.
Is r/3dprinter growing?
Over the last ≈32 days r/3dprinter changed by +3.7% — a gain of 2.9K members. We compare against the nearest snapshot we actually hold and state the real span rather than rounding it to a clean "30 days".
How active is r/3dprinter?
We don't have a reliable posting-rate sample for r/3dprinter yet. Subscriber count alone is a poor guide to whether a community is active, so treat this one as unverified until the next sample lands.
When was r/3dprinter created?
r/3dprinter was founded in October 2012 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.
Can I promote my product in r/3dprinter?
We don't have a promo-tolerance read for r/3dprinter yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.
How do I monitor r/3dprinter for mentions?
Hit Watch on this page. Prowlo starts crawling r/3dprinter into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.
Can my AI agent read r/3dprinter's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/3dprinter's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.
Read-only · Human-in-the-loop
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