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.
Members
3,404,772
3.4M
Posts per day
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no sample yet
Comments per post
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no sample yet
Growth · 7d
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not enough history yet
Growth · 30d
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not enough history yet
Promo tolerance
high
read the sidebar rules first
Tracking since Aug 7 · growth spans are the real distance between snapshots, not rounded windows.
Member growth
Tracking since Aug 7 — growth charts appear after a week of history.
Similar by content
Communities that discuss what r/3Dprinting discusses.
A community dedicated to share and discuss 3D prints that have a specific, practical function or use in everyday life.
A place where you can show off your 3D models, artworks, and designs.
Help each other out! This subreddit is for people with printers who are willing to 3D print stuff out for others and send it to them, and for people who can't get a hold of a printer and want something printed! When choosing who to work with, make sure they comment BEFORE sending you a message to avoid banned and scam users.
A community for those that practice the broad discipline of mechanical engineering.
See the full lists on similar subreddits.
r/3Dprinting — frequently asked
How many members does r/3Dprinting have?
r/3Dprinting has 3,404,772 members as of our most recent crawl on Aug 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/3Dprinting growing?
We don't have 30 days of snapshot history for r/3Dprinting yet, so we're not going to invent a growth number. We've been tracking it since Aug 7; the chart fills in as history accumulates.
How active is r/3Dprinting?
We don't have a reliable posting-rate sample for r/3Dprinting yet. Subscriber count alone is a poor guide to whether a community is active, so treat this one as unverified until the crawl accumulates more.
Can I promote my product in r/3Dprinting?
Our read on r/3Dprinting is high promo tolerance. It has a promo-friendly culture or a dedicated thread, but that still means being useful first. Always read the sidebar rules before you post; moderator enforcement is the thing that actually decides.
How do I monitor r/3Dprinting for mentions?
Hit Watch on this page. Prowlo starts crawling r/3Dprinting 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.