Skip to main content

Get the Reddit app

Scan this QR code to download the app now
Or check it out in the app stores

3D printing








What was the MOST USEFUL thing you have printed in you 3D printer?
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 Online
What was the MOST USEFUL thing you have printed in you 3D printer?

I'm considering buying my first 3D printer and I would like a use case other than printing toys (not that they are not useful).

What was the most useful object you have printed in your 3D printer and why? If you can give detail about the size, material and amount of material used it would be great.

Thank you!











First layer 0.6mm nozzle
r/ender3

Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. Here, enthusiasts, hobbyists, and professionals gather to discuss, troubleshoot, and explore everything related to 3D printing with the Ender 3. Whether you're looking for guides on calibration, advice on modding, or simply want to share your latest 3D prints on the Ender 3, this subreddit is your go-to hub for support and inspiration.


Members Online
First layer 0.6mm nozzle
r/ender3 - First layer 0.6mm nozzle


I am using clear PMMA filament for a live subway map as optical fiber and although it works great I cannot bend the fibers enough to shut the shadowbox frame it's in. I know heating the filament likely the best way to go about it but is there a safe way to ensure I don't ruin what I've done?
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 Online
I am using clear PMMA filament for a live subway map as optical fiber and although it works great I cannot bend the fibers enough to shut the shadowbox frame it's in. I know heating the filament likely the best way to go about it but is there a safe way to ensure I don't ruin what I've done?
  • r/3Dprinting - This is the shadow box I bought to encase the map. The fibers light up stations where there are trains
  • r/3Dprinting - This is the back, lots and lots of filament...iirc over 300ft worth for all 400+ stations
  • r/3Dprinting - The shadowbox cover is flimsy cardboard and the tension of the filament will not give no matter what. I have read that heating it is a good bet but am nervous about melting it



I made a collection of Ender 3 mods to make it a reliable workhorse with many QOL upgrades and nothing frivolous
r/ender3

Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. Here, enthusiasts, hobbyists, and professionals gather to discuss, troubleshoot, and explore everything related to 3D printing with the Ender 3. Whether you're looking for guides on calibration, advice on modding, or simply want to share your latest 3D prints on the Ender 3, this subreddit is your go-to hub for support and inspiration.


Members Online
I made a collection of Ender 3 mods to make it a reliable workhorse with many QOL upgrades and nothing frivolous



  • /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
  • Welcome to Bambu Lab! Here we discuss everything related to Bambu Lab 3D printers. members
  • Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. Here, enthusiasts, hobbyists, and professionals gather to discuss, troubleshoot, and explore everything related to 3D printing with the Ender 3. Whether you're looking for guides on calibration, advice on modding, or simply want to share your latest 3D prints on the Ender 3, this subreddit is your go-to hub for support and inspiration. members
  • A community dedicated to share and discuss 3D prints that have a specific, practical function or use in everyday life. members
  • All things related to Prusa 3D printers. Show off your prints, or ask a question. Pictures of boxes and shipping notices are considered low-effort and will be removed. members
  • Subreddit dedicated to creating a community around users of SLA and other resin-based 3D printing systems. Feel free to ASK questions, POST cool prints, DISCUSS hardware designs, and SHARE anything you think is relevant to resin-based printing. members
  • The community of r/FixMyPrint will help you fix your 3D printer settings for the most optimal prints. members
  • /r/klippers -- a place to discuss all things related to the Klipper 3d Printer Firmware. Old Printer? Cheap Printer? New Printer? Bad Prints? Great Prints? Klipper can help you and your machine produce beautiful prints at a fraction of the time. This is not an official Klipper support channel and poorly moderated so ymmv. Check Klipper out on discord, discourse, or Klipper3d.org members
  • Welcome to the official community of Creality, the world-leading 3D printer brand. Follow our rules and you can get tremendous support and suggestions from our community. Welcome to share your unique models, printing tips & ask for help. Have fun in the 3D printing world with Creality! members
  • A Subreddit for Ender 3 v2 users to seek help, share their creations and talk. members
  • Welcome To the Voron Design sub! ___________________________________________ Also join our discord https://discord.gg/voron and our official forum https://forum.vorondesign.com _________________________________________ Community for proud owners of VORON 3D printers, and anyone interested in building one. ___________________________________________ http://www.vorondesign.com https://www.github.com/vorondesign https://discord.gg/voron https://forum.vorondesign.com members
  • Welcome to Creality Official K Series (K2 PLUS/K1/K1 MAX/K1C) Community! Follow our rules and you can get tremendous support and suggestions from our community. Welcome to share your unique models, printing tips & ask for help. Have fun in the 3D world with Creality! members
  • We offer a wide range of support, tips and tricks for a wide range of Elegoo's Resin Printers! Whether you've got a Mars, Saturn or Jupiter - we're here to help! Note - not official Elegoo. members
  • Everything about the Anycubic line of resin printers! Come discuss resin printing or submit your questions here! members
  • All about Elegoo Mars' bigger brother. members
  • Anything to do with Anycubic 3d printers. Unofficial, not affiliated with Anycubic. members
  • Welcome to ELEGOO official! We offer a wide range of support, tips, and tricks for a wide range of Elegoo products. Whatever you're using, we're here to help! members
  • Subreddit dedicated to discussing the Neptune 4 from Elegoo members
  • Welcome to BIGTREETECH&BIQU Community! This is a great place to connect with fellow makers and share insights about BIGTREETECH and BIQU products. Please always be friendly and respectful towards others. 𝐆𝐢𝐭𝐡𝐮𝐛: https://github.com/bigtreetech 𝐖𝐢𝐤𝐢: https://bttwiki.com Online Store https://biqu.equipment BIQU Official: http://biqu3d.com BIGTREETECH Official: http://bigtree-tech.com Any product problems, please submit a ticket: https://biqu3d.com/pages/submit-a-ticket members
  • A place to share insights, ask questions, and stay updated with the latest trends and innovations in 3D scanning. members
  • Community for owners of the Ender 3 S1, Ender 3 S1 Pro, and Ender 3 S1 Plus. members
  • Gridfinity, your Ultimate Modular Workshop. This community talks and modifies and makes Gridfinity that was started by the always-spectacular Zack Freedman. members
  • This is a place for owners and future owners to discuss the Elegoo Neptune 3, Pro , Plus and the Max members
  • A place to come together and discuss the Creality Ender 5, Pro and Plus 3D printers members
  • Welcome to the Creality Ender 3 Pro Community! Welcome to share your unique models, printing tips & ask for help. Have fun in the 3D world! members
  • Flashforge 3D printers members
  • This is the SubReddit for the Creality CR-10/CR-10S 3D Printer. Please be friendly and helpful. Message and mods before posting any sales links/affiliate links. Full rules are in the "Community Rules" link at the top of the sub. members
  • A subreddit dedicated to Sovol 3D printers, prints, troubleshooting, and any upgrades along the way. members
  • End to end solution for fused filament printing members
  • Serial requests (new & transfers) for proud owners of VORON CoreXY 3D printers. ___________________________________________ Want to talk about Vorons? Join us at: Our Discord https://discord.gg/voron or Our Official Forum https://forum.vorondesign.com/ ___________________________________________ members