r/CNC

Community Overview

About r/CNC

For anything CNC related: CAD, CAM, automation, and more!

The community at a glance

r/CNC is a Subreddit for Hardware with roughly 127K members. It has been around since 2009. It uses a forum format for communication. It is the 10th largest community in the Hardware topic page.

Roughly 22K members have joined in the past year. Popular discussion topics include Cnc, Machining, and Programming. Product recommendations often mention cnc machine.

On Reddit
Established 2009
127K Members

Community Features

This community has a forum

Subreddit Analysis

via GummySearch
Yearly: +22K members
Growth: +20.6% / year

Member growth over time

All time (yearly)

  • 2013: 1K members
  • 2014: 2K members
  • 2015: 2K members
  • 2016: 2K members
  • 2017: 3K members
  • 2018: 5K members
  • 2020: 18K members
  • 2023: 34K members
  • 2024: 19K members
  • 2025: 22K members
  • 2026: 18K members

Past year (monthly)

  • Dec: 2K members
  • Jan: 2K members
  • Feb: 2K members
  • Mar: 2K members
  • Apr: 2K members
  • May: 2K members
  • Jun: 2K members
  • Jul: 2K members
  • Aug: 2K members
  • Sep: 2K members
  • Oct: 1K members
  • Nov: 585 members

Topics

  • Cnc
    325 posts in the past month
    #1
    Cnc
    325
  • Machining
    124 posts in the past month
    #2
    Machining
    124
  • Programming
    22 posts in the past month
    #3
    Programming
    22
  • Software
    21 posts in the past month
    #4
    Software
    21
  • Design
    20 posts in the past month
    #5
    Design
    20

Flair

  • ADVICE
    16 posts in the past month
    1. Is this machinable?
    2. How do you handle “deburr all edges” when some edges are functional?
    3. How is machining process planning done at your shopfloor?
    #1
    ADVICE
    Is this machinable? · How do you handle “deburr all edges” when some edges are functional? · How is machining process planning done at your shopfloor?
    16
  • HARDWARE SUPPORT
    8 posts in the past month
    1. To Re-Build or Not To Re-Build
    2. All Star CNC gasket not sealing on Air Weights vacuum table — anyone using tile gasket on a production fixture?
    3. Native bed size math: how much does a bigger bed actually save on batch jobs?
    #2
    HARDWARE SUPPORT
    To Re-Build or Not To Re-Build · All Star CNC gasket not sealing on Air Weights vacuum table — anyone using tile gasket on a production fixture? · Native bed size math: how much does a bigger bed actually save on batch jobs?
    8
  • SOFTWARE
    7 posts in the past month
    1. CNC-cut gears from my own gear generator – what bit size do you use for small teeth?
    2. I made a free tool for nesting DXF parts onto sheets
    3. Takumion: parametric CAD in your browser now (desktop app on the way)
    #3
    SOFTWARE
    CNC-cut gears from my own gear generator – what bit size do you use for small teeth? · I made a free tool for nesting DXF parts onto sheets · Takumion: parametric CAD in your browser now (desktop app on the way)
    7
  • GENERAL SUPPORT
    6 posts in the past month
    1. Is learning CNC programming enough to improve my manufacturing knowledge as a Design Engineer?
    2. Seeking advice on dimensions for a custom sleeve nut
    3. Help! ACU-RITE MILLPWR Z limit fault
    #4
    GENERAL SUPPORT
    Is learning CNC programming enough to improve my manufacturing knowledge as a Design Engineer? · Seeking advice on dimensions for a custom sleeve nut · Help! ACU-RITE MILLPWR Z limit fault
    6
  • SOFTWARE SUPPORT
    5 posts in the past month
    1. Looking for ADTECH CNC4220 / CNC4320 Controller Firmware or BIOS Backup
    2. Centroid CNC11 to Haas 2008 control - how much would I be compromising?
    3. Issues with importing file from SketchUp to Aspire
    #5
    SOFTWARE SUPPORT
    Looking for ADTECH CNC4220 / CNC4320 Controller Firmware or BIOS Backup · Centroid CNC11 to Haas 2008 control - how much would I be compromising? · Issues with importing file from SketchUp to Aspire
    5

Product recommendations

  • cnc machine
    4 posts in the past month
    1. Best cnc for small business
    2. Best sub 300$ cnc to cut carbon fiber abt 5-8mm with for drones?
    3. I want to get into sewing and making my own clothes. would a CNC machine be worth the investment to cut fabric? if so any recs?
    #1
    cnc machine
    Best cnc for small business · Best sub 300$ cnc to cut carbon fiber abt 5-8mm with for drones? · I want to get into sewing and making my own clothes. would a CNC machine be worth the investment to cut fabric? if so any recs?
    4

Frequently asked questions

Who is r/CNC for?
Best for Hardware enthusiasts looking for a Reddit-based community with forum discussion.
Is r/CNC free to join?
This listing is not marked as paid-only. Access rules and any fees are decided by the community.
How many members does r/CNC have?
Roughly 127K members, based on figures reported by the community or its host. Member counts are approximate and change over time.
What platform is r/CNC on?
r/CNC runs on Reddit. Reddit communities (or "subreddits") are forum-based groups on the popular social news aggregation, web content rating, and discussion website Reddit. Reddit is commonly known as "the front page of the internet". Users submit content to the site such as links, text posts, and images, which are then voted up or down and discussed by other members. From investing Reddit communities, to professional ones, to ones just for laughs, you're likely to find a community for you on Reddit.
What topics does r/CNC cover?
On the Hive Index, r/CNC is organized under Hardware.
How do I join r/CNC?
You can join r/CNC by clicking this link, or pressing the "Go to community" button above.
What are the Hardware communities like?
Communities for hardware engineers, electronics hobbyists, and embedded systems developers. Discord and Reddit host communities for Arduino, Raspberry Pi, PCB design, and DIY electronics, alongside more professional spaces for engineers working on commercial hardware products.