QIDI 3D printer house fire - Revision history

Tempo123: /* References */ Archive

2026-04-07T18:02:14Z

References: Archive

← Older revision		Revision as of 18:02, 7 April 2026
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	===Media coverage===		===Media coverage===

	Leading 3D printing news publications, including Fabbaloo and All3DP, covered the story in detail, criticizing the initial censorship and calling for greater transparency.<ref name="Fabbaloo" /><ref name="All3DP" /> Influential YouTube channels, such as 3D Musketeers and Ricky Impey, produced in-depth videos explaining the technical issues, which were instrumental in pressuring Qidi Tech to publicly address the problem.<ref name="PFF186">{{Cite web \|author=@3DMusketeers \|date=4 Apr 2025 \|title=Qidi Plus 4: 3D Printer or Firestarter? - PrintFixFriday 186 \|url=https://www.youtube.com/watch?app=desktop&v=6sktfZMhur4 \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>		Leading 3D printing news publications, including Fabbaloo and All3DP, covered the story in detail, criticizing the initial censorship and calling for greater transparency.<ref name="Fabbaloo" /><ref name="All3DP" /> Influential YouTube channels, such as 3D Musketeers and Ricky Impey, produced in-depth videos explaining the technical issues, which were instrumental in pressuring Qidi Tech to publicly address the problem.<ref name="PFF186">{{Cite web \|author=@3DMusketeers \|date=4 Apr 2025 \|title=Qidi Plus 4: 3D Printer or Firestarter? - PrintFixFriday 186 \|url=https://www.youtube.com/watch?app=desktop&v=6sktfZMhur4 \|url-status=live \|archive-url=https://preservetube.com/watch?app=desktop&v=6sktfZMhur4 \|archive-date=2026-02-23 \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>

	===Community-developed solutions===		===Community-developed solutions===

	In response to the perceived inadequacy of the official fix, technically skilled users designed and shared their own safety modifications. These community-driven guides detailed how to replace the under-specified stock SSR with a higher-rated component and, most importantly, how to add the missing thermal fuse to the heater circuit. This proactive response created a decentralized, open-source repair program that provided a more robust safety solution than the one offered by the manufacturer.<ref name="PrintablesFix">{{Cite web \|title=Fail-safe Chamber Heater SSR for Qidi Plus 4 \|url=https://www.printables.com/model/1053814-fail-safe-chamber-heater-ssr-for-qidi-plus-4 \|access-date=5 Aug 2025 \|website=Printables \|archive-url=http://web.archive.org/web/20251030203943/https://www.printables.com/model/1053814-fail-safe-chamber-heater-ssr-for-qidi-plus-4 \|archive-date=30 Oct 2025}}</ref><ref name="YouTubeFix">{{Cite web \|author=@3DPrintSOS \|date=20 Nov 2024 \|title=FIXING the Qidi Plus 4 - DIY SSR Upgrade \|url=https://www.youtube.com/watch?v=kYKGGycYN2w \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>		In response to the perceived inadequacy of the official fix, technically skilled users designed and shared their own safety modifications. These community-driven guides detailed how to replace the under-specified stock SSR with a higher-rated component and, most importantly, how to add the missing thermal fuse to the heater circuit. This proactive response created a decentralized, open-source repair program that provided a more robust safety solution than the one offered by the manufacturer.<ref name="PrintablesFix">{{Cite web \|title=Fail-safe Chamber Heater SSR for Qidi Plus 4 \|url=https://www.printables.com/model/1053814-fail-safe-chamber-heater-ssr-for-qidi-plus-4 \|access-date=5 Aug 2025 \|website=Printables \|archive-url=http://web.archive.org/web/20251030203943/https://www.printables.com/model/1053814-fail-safe-chamber-heater-ssr-for-qidi-plus-4 \|archive-date=30 Oct 2025}}</ref><ref name="YouTubeFix">{{Cite web \|author=@3DPrintSOS \|date=20 Nov 2024 \|title=FIXING the Qidi Plus 4 - DIY SSR Upgrade \|url=https://www.youtube.com/watch?v=kYKGGycYN2w \|url-status=live \|archive-url=https://preservetube.com/watch?v=kYKGGycYN2w \|archive-date=7 Apr 2026 \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>

	==Current status==		==Current status==

Bananabot: Added archive URLs for 1 citation(s) using CRWCitationBot

2026-02-23T12:56:28Z

Added archive URLs for 1 citation(s) using CRWCitationBot

← Older revision		Revision as of 12:56, 23 February 2026
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	===Community-developed solutions===		===Community-developed solutions===

	In response to the perceived inadequacy of the official fix, technically skilled users designed and shared their own safety modifications. These community-driven guides detailed how to replace the under-specified stock SSR with a higher-rated component and, most importantly, how to add the missing thermal fuse to the heater circuit. This proactive response created a decentralized, open-source repair program that provided a more robust safety solution than the one offered by the manufacturer.<ref name="PrintablesFix">{{Cite web \|title=Fail-safe Chamber Heater SSR for Qidi Plus 4 \|url=https://www.printables.com/model/1053814-fail-safe-chamber-heater-ssr-for-qidi-plus-4 \|access-date=5 Aug 2025 \|website=Printables}}</ref><ref name="YouTubeFix">{{Cite web \|author=@3DPrintSOS \|date=20 Nov 2024 \|title=FIXING the Qidi Plus 4 - DIY SSR Upgrade \|url=https://www.youtube.com/watch?v=kYKGGycYN2w \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>		In response to the perceived inadequacy of the official fix, technically skilled users designed and shared their own safety modifications. These community-driven guides detailed how to replace the under-specified stock SSR with a higher-rated component and, most importantly, how to add the missing thermal fuse to the heater circuit. This proactive response created a decentralized, open-source repair program that provided a more robust safety solution than the one offered by the manufacturer.<ref name="PrintablesFix">{{Cite web \|title=Fail-safe Chamber Heater SSR for Qidi Plus 4 \|url=https://www.printables.com/model/1053814-fail-safe-chamber-heater-ssr-for-qidi-plus-4 \|access-date=5 Aug 2025 \|website=Printables \|archive-url=http://web.archive.org/web/20251030203943/https://www.printables.com/model/1053814-fail-safe-chamber-heater-ssr-for-qidi-plus-4 \|archive-date=30 Oct 2025}}</ref><ref name="YouTubeFix">{{Cite web \|author=@3DPrintSOS \|date=20 Nov 2024 \|title=FIXING the Qidi Plus 4 - DIY SSR Upgrade \|url=https://www.youtube.com/watch?v=kYKGGycYN2w \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>

	==Current status==		==Current status==

Bananabot: Added archive URLs for 9 citation(s) using CRWCitationBot

2026-02-23T07:18:02Z

Added archive URLs for 9 citation(s) using CRWCitationBot

Bythmusters: Added "3D printers" category

2026-01-24T13:59:21Z

Added "3D printers" category

← Older revision		Revision as of 13:59, 24 January 2026
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	[[Category:Qidi Tech]]		[[Category:Qidi Tech]]
	[[Category:Qidi Tech Plus 4]]		[[Category:Qidi Tech Plus 4]]
			[[Category:3D printers]]

Bythmusters: Added cargo template

2026-01-13T23:38:05Z

Added cargo template

← Older revision		Revision as of 23:38, 13 January 2026
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			{{IncidentCargo
			\|Company=QIDI Tech
			\|StartDate=2025-03-31
			\|EndDate=
			\|Status=Unresolved
			\|ProductLine=
			\|Product=Tech Plus 4
			\|ArticleType=Product
			\|Type=Quality, Safety, Silencing
			\|Description=A 3D printer allegedly caused a house fire, and in response, QIDI Tech banned the customer from their subreddit.
			}}
	In early 2025, a consumer reported a catastrophic house fire allegedly caused by a Qidi Tech Plus 4 3D printer. The incident gained widespread attention after the user claimed their report was censored on the company's official subreddit.<ref name="RedditPost">{{Cite web \|author=r/3Dprinting \|date=31 March 2025 \|title=R/QidiTech3d Permanently banned me for warning people after my family lost everything from a fire! \|url=https://www.reddit.com/r/3Dprinting/comments/1jnuju1/rqiditech3d_permanently_banned_me_for_warning/ \|access-date=5 Aug 2025 \|website=[[Reddit]]}}</ref> The subsequent public outcry led to a community-driven technical investigation that identified potential systemic design flaws, including an under-specified Solid-State Relay (SSR) and the absence of a thermal fuse, which could lead to thermal runaway.<ref name="MakerForums">{{Cite web \|date=1 Apr 2025 \|title=Qidi permanently banned a customer for reporting that a Qidi Plus4 caught fire and destroyed their entire house \|url=https://forum.makerforums.info/t/qidi-permanently-banned-a-customer-for-reporting-that-a-qidi-plus4-caught-fire-and-destroyed-their-entire-house/92980 \|access-date=5 Aug 2025 \|website=Maker Forums}}</ref> In response, Qidi Tech initiated a program to provide replacement parts and released firmware updates, though the adequacy of these solutions was debated within the 3D printing community.<ref name="PFF164">{{Cite web \|author=@3DMusketeers \|date=1 Nov 2024 \|title=Fire Hazards & Fight Club Fails! - PrintFixFriday 164 \|url=https://www.youtube.com/watch?v=pvhohMVPl1Q \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>		In early 2025, a consumer reported a catastrophic house fire allegedly caused by a Qidi Tech Plus 4 3D printer. The incident gained widespread attention after the user claimed their report was censored on the company's official subreddit.<ref name="RedditPost">{{Cite web \|author=r/3Dprinting \|date=31 March 2025 \|title=R/QidiTech3d Permanently banned me for warning people after my family lost everything from a fire! \|url=https://www.reddit.com/r/3Dprinting/comments/1jnuju1/rqiditech3d_permanently_banned_me_for_warning/ \|access-date=5 Aug 2025 \|website=[[Reddit]]}}</ref> The subsequent public outcry led to a community-driven technical investigation that identified potential systemic design flaws, including an under-specified Solid-State Relay (SSR) and the absence of a thermal fuse, which could lead to thermal runaway.<ref name="MakerForums">{{Cite web \|date=1 Apr 2025 \|title=Qidi permanently banned a customer for reporting that a Qidi Plus4 caught fire and destroyed their entire house \|url=https://forum.makerforums.info/t/qidi-permanently-banned-a-customer-for-reporting-that-a-qidi-plus4-caught-fire-and-destroyed-their-entire-house/92980 \|access-date=5 Aug 2025 \|website=Maker Forums}}</ref> In response, Qidi Tech initiated a program to provide replacement parts and released firmware updates, though the adequacy of these solutions was debated within the 3D printing community.<ref name="PFF164">{{Cite web \|author=@3DMusketeers \|date=1 Nov 2024 \|title=Fire Hazards & Fight Club Fails! - PrintFixFriday 164 \|url=https://www.youtube.com/watch?v=pvhohMVPl1Q \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>

AnotherConsumerRightsPerson: /* The incident: House fire and censorship allegations */ +wplink

2025-11-15T06:33:03Z

The incident: House fire and censorship allegations: +wplink

← Older revision		Revision as of 06:33, 15 November 2025
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	The controversy began on March 31, 2025, when Reddit user u/ProgressLocal1511 alleged that their Qidi Tech Plus 4 printer had catastrophically failed and started a fire that resulted in the complete destruction of their home. According to the user's account, the printer was operating with PETG filament. Approximately 15 to 30 minutes after a routine check, smoke alarms were triggered. The user discovered dense smoke and flames emanating from the rear of the machine, and the fire escalated too rapidly to be controlled with a home fire extinguisher.<ref name="RedditPost" />		The controversy began on March 31, 2025, when Reddit user u/ProgressLocal1511 alleged that their Qidi Tech Plus 4 printer had catastrophically failed and started a fire that resulted in the complete destruction of their home. According to the user's account, the printer was operating with PETG filament. Approximately 15 to 30 minutes after a routine check, smoke alarms were triggered. The user discovered dense smoke and flames emanating from the rear of the machine, and the fire escalated too rapidly to be controlled with a home fire extinguisher.<ref name="RedditPost" />

	The incident's scope expanded significantly when the user reported that their attempts to warn other owners on the official r/QidiTech3d subreddit were censored. They claimed their posts were removed and their account was permanently banned from the forum.<ref name="RedditPost" /> This action was perceived by the broader community as an attempt to suppress critical safety information, triggering the "Streisand effect," where the effort to censor the report amplified its reach across social media and 3D printing news outlets.<ref name="Fabbaloo">{{Cite web \|last=Stevenson \|first=Kerry \|date=4 Apr 2025 \|title=Reports Emerge of Fires Caused by Qidi Plus 4 3D Printer \|url=https://www.fabbaloo.com/news/reports-emerge-of-fires-caused-by-qidi-plus-4-3d-printer \|access-date=5 Aug 2025 \|website=Fabbaloo}}</ref>		The incident's scope expanded significantly when the user reported that their attempts to warn other owners on the official r/QidiTech3d subreddit were censored. They claimed their posts were removed and their account was permanently banned from the forum.<ref name="RedditPost" /> This action was perceived by the broader community as an attempt to suppress critical safety information, triggering the "[[wikipedia:Streisand effect\|Streisand effect]]," where the effort to censor the report amplified its reach across social media and 3D printing news outlets.<ref name="Fabbaloo">{{Cite web \|last=Stevenson \|first=Kerry \|date=4 Apr 2025 \|title=Reports Emerge of Fires Caused by Qidi Plus 4 3D Printer \|url=https://www.fabbaloo.com/news/reports-emerge-of-fires-caused-by-qidi-plus-4-3d-printer \|access-date=5 Aug 2025 \|website=Fabbaloo}}</ref>

	==Community technical investigation==		==Community technical investigation==

AnotherConsumerRightsPerson: AnotherConsumerRightsPerson moved page QIDI to QIDI 3D printer house fire: See talk page.

2025-09-23T18:59:37Z

AnotherConsumerRightsPerson moved page QIDI to QIDI 3D printer house fire: See talk page.

← Older revision		Revision as of 18:59, 23 September 2025
(No difference)

45.134.140.146: changed capitalization of nylon

2025-08-20T20:50:24Z

changed capitalization of nylon

← Older revision		Revision as of 20:50, 20 August 2025
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	Zhejiang Qidi Electronic Co., Ltd., operating as Qidi Tech, is a Chinese manufacturer of 3D printers founded in 2014. The company produces a range of Fused Deposition Modeling (FDM) and resin-based printers for hobbyists and professional users.<ref name="QidiAbout">{{Cite web \|title=About QIDI Tech \|url=https://eu.qidi3d.com/pages/about \|access-date=5 Aug 2025 \|website=[[QIDI]]}}</ref>		Zhejiang Qidi Electronic Co., Ltd., operating as Qidi Tech, is a Chinese manufacturer of 3D printers founded in 2014. The company produces a range of Fused Deposition Modeling (FDM) and resin-based printers for hobbyists and professional users.<ref name="QidiAbout">{{Cite web \|title=About QIDI Tech \|url=https://eu.qidi3d.com/pages/about \|access-date=5 Aug 2025 \|website=[[QIDI]]}}</ref>

	The product at the center of the controversy is the Qidi Tech Plus 4, a CoreXY 3D printer. A key feature of the Plus 4 is its large, fully enclosed build volume with an actively heated build chamber capable of reaching temperatures up to 65°C. This feature is critical for printing with engineering-grade materials like ABS and ~~Nylon~~, which are prone to warping without a consistently hot environment.<ref name="TomsHardware">{{Cite web \|last=Bertacchi \|first=Denise \|date=18 Apr 2025 \|title=QIDI Plus4 Review: Bigger is Better \|url=https://www.tomshardware.com/3d-printing/qidi-plus4-review \|access-date=5 Aug 2025 \|website=Tom's Hardware}}</ref> The high-power electrical system required to heat the chamber became the focal point of the subsequent safety concerns.		The product at the center of the controversy is the Qidi Tech Plus 4, a CoreXY 3D printer. A key feature of the Plus 4 is its large, fully enclosed build volume with an actively heated build chamber capable of reaching temperatures up to 65°C. This feature is critical for printing with engineering-grade materials like ABS and nylon, which are prone to warping without a consistently hot environment.<ref name="TomsHardware">{{Cite web \|last=Bertacchi \|first=Denise \|date=18 Apr 2025 \|title=QIDI Plus4 Review: Bigger is Better \|url=https://www.tomshardware.com/3d-printing/qidi-plus4-review \|access-date=5 Aug 2025 \|website=Tom's Hardware}}</ref> The high-power electrical system required to heat the chamber became the focal point of the subsequent safety concerns.

	==The incident: House fire and censorship allegations==		==The incident: House fire and censorship allegations==

OskaRRRitoS: Remove stub banner, article is sufficiently detailed

2025-08-16T18:11:45Z

Remove stub banner, article is sufficiently detailed

← Older revision		Revision as of 18:11, 16 August 2025
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	~~{{stub}}~~

	In early 2025, a consumer reported a catastrophic house fire allegedly caused by a Qidi Tech Plus 4 3D printer. The incident gained widespread attention after the user claimed their report was censored on the company's official subreddit.<ref name="RedditPost">{{Cite web \|author=r/3Dprinting \|date=31 March 2025 \|title=R/QidiTech3d Permanently banned me for warning people after my family lost everything from a fire! \|url=https://www.reddit.com/r/3Dprinting/comments/1jnuju1/rqiditech3d_permanently_banned_me_for_warning/ \|access-date=5 Aug 2025 \|website=[[Reddit]]}}</ref> The subsequent public outcry led to a community-driven technical investigation that identified potential systemic design flaws, including an under-specified Solid-State Relay (SSR) and the absence of a thermal fuse, which could lead to thermal runaway.<ref name="MakerForums">{{Cite web \|date=1 Apr 2025 \|title=Qidi permanently banned a customer for reporting that a Qidi Plus4 caught fire and destroyed their entire house \|url=https://forum.makerforums.info/t/qidi-permanently-banned-a-customer-for-reporting-that-a-qidi-plus4-caught-fire-and-destroyed-their-entire-house/92980 \|access-date=5 Aug 2025 \|website=Maker Forums}}</ref> In response, Qidi Tech initiated a program to provide replacement parts and released firmware updates, though the adequacy of these solutions was debated within the 3D printing community.<ref name="PFF164">{{Cite web \|author=@3DMusketeers \|date=1 Nov 2024 \|title=Fire Hazards & Fight Club Fails! - PrintFixFriday 164 \|url=https://www.youtube.com/watch?v=pvhohMVPl1Q \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>		In early 2025, a consumer reported a catastrophic house fire allegedly caused by a Qidi Tech Plus 4 3D printer. The incident gained widespread attention after the user claimed their report was censored on the company's official subreddit.<ref name="RedditPost">{{Cite web \|author=r/3Dprinting \|date=31 March 2025 \|title=R/QidiTech3d Permanently banned me for warning people after my family lost everything from a fire! \|url=https://www.reddit.com/r/3Dprinting/comments/1jnuju1/rqiditech3d_permanently_banned_me_for_warning/ \|access-date=5 Aug 2025 \|website=[[Reddit]]}}</ref> The subsequent public outcry led to a community-driven technical investigation that identified potential systemic design flaws, including an under-specified Solid-State Relay (SSR) and the absence of a thermal fuse, which could lead to thermal runaway.<ref name="MakerForums">{{Cite web \|date=1 Apr 2025 \|title=Qidi permanently banned a customer for reporting that a Qidi Plus4 caught fire and destroyed their entire house \|url=https://forum.makerforums.info/t/qidi-permanently-banned-a-customer-for-reporting-that-a-qidi-plus4-caught-fire-and-destroyed-their-entire-house/92980 \|access-date=5 Aug 2025 \|website=Maker Forums}}</ref> In response, Qidi Tech initiated a program to provide replacement parts and released firmware updates, though the adequacy of these solutions was debated within the 3D printing community.<ref name="PFF164">{{Cite web \|author=@3DMusketeers \|date=1 Nov 2024 \|title=Fire Hazards & Fight Club Fails! - PrintFixFriday 164 \|url=https://www.youtube.com/watch?v=pvhohMVPl1Q \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>

217.138.216.164: Changed the incident date to March 31 as I was unable to verify any information to support the January 10th incident date

2025-08-06T10:37:40Z

Changed the incident date to March 31 as I was unable to verify any information to support the January 10th incident date

← Older revision		Revision as of 10:37, 6 August 2025
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	{{stub}}		{{stub}}

	In early 2025, a consumer reported a catastrophic house fire allegedly caused by a Qidi Tech Plus 4 3D printer. The incident gained widespread attention after the user claimed their report was censored on the company's official subreddit.<ref name="RedditPost">{{Cite web \|author=r/3Dprinting \|date=~~10 January~~ 2025 \|title=R/QidiTech3d Permanently banned me for warning people after my family lost everything from a fire! \|url=https://www.reddit.com/r/3Dprinting/comments/1jnuju1/rqiditech3d_permanently_banned_me_for_warning/ \|access-date=5 Aug 2025 \|website=[[Reddit]]}}</ref> The subsequent public outcry led to a community-driven technical investigation that identified potential systemic design flaws, including an under-specified Solid-State Relay (SSR) and the absence of a thermal fuse, which could lead to thermal runaway.<ref name="MakerForums">{{Cite web \|date=1 Apr 2025 \|title=Qidi permanently banned a customer for reporting that a Qidi Plus4 caught fire and destroyed their entire house \|url=https://forum.makerforums.info/t/qidi-permanently-banned-a-customer-for-reporting-that-a-qidi-plus4-caught-fire-and-destroyed-their-entire-house/92980 \|access-date=5 Aug 2025 \|website=Maker Forums}}</ref> In response, Qidi Tech initiated a program to provide replacement parts and released firmware updates, though the adequacy of these solutions was debated within the 3D printing community.<ref name="PFF164">{{Cite web \|author=@3DMusketeers \|date=1 Nov 2024 \|title=Fire Hazards & Fight Club Fails! - PrintFixFriday 164 \|url=https://www.youtube.com/watch?v=pvhohMVPl1Q \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>		In early 2025, a consumer reported a catastrophic house fire allegedly caused by a Qidi Tech Plus 4 3D printer. The incident gained widespread attention after the user claimed their report was censored on the company's official subreddit.<ref name="RedditPost">{{Cite web \|author=r/3Dprinting \|date=31 March 2025 \|title=R/QidiTech3d Permanently banned me for warning people after my family lost everything from a fire! \|url=https://www.reddit.com/r/3Dprinting/comments/1jnuju1/rqiditech3d_permanently_banned_me_for_warning/ \|access-date=5 Aug 2025 \|website=[[Reddit]]}}</ref> The subsequent public outcry led to a community-driven technical investigation that identified potential systemic design flaws, including an under-specified Solid-State Relay (SSR) and the absence of a thermal fuse, which could lead to thermal runaway.<ref name="MakerForums">{{Cite web \|date=1 Apr 2025 \|title=Qidi permanently banned a customer for reporting that a Qidi Plus4 caught fire and destroyed their entire house \|url=https://forum.makerforums.info/t/qidi-permanently-banned-a-customer-for-reporting-that-a-qidi-plus4-caught-fire-and-destroyed-their-entire-house/92980 \|access-date=5 Aug 2025 \|website=Maker Forums}}</ref> In response, Qidi Tech initiated a program to provide replacement parts and released firmware updates, though the adequacy of these solutions was debated within the 3D printing community.<ref name="PFF164">{{Cite web \|author=@3DMusketeers \|date=1 Nov 2024 \|title=Fire Hazards & Fight Club Fails! - PrintFixFriday 164 \|url=https://www.youtube.com/watch?v=pvhohMVPl1Q \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>

	==Background==		==Background==
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	==The incident: House fire and censorship allegations==		==The incident: House fire and censorship allegations==

	The controversy began on ~~January 10~~, 2025, when Reddit user u/ProgressLocal1511 alleged that their Qidi Tech Plus 4 printer had catastrophically failed and started a fire that resulted in the complete destruction of their home. According to the user's account, the printer was operating with PETG filament. Approximately 15 to 30 minutes after a routine check, smoke alarms were triggered. The user discovered dense smoke and flames emanating from the rear of the machine, and the fire escalated too rapidly to be controlled with a home fire extinguisher.<ref name="RedditPost" />		The controversy began on March 31, 2025, when Reddit user u/ProgressLocal1511 alleged that their Qidi Tech Plus 4 printer had catastrophically failed and started a fire that resulted in the complete destruction of their home. According to the user's account, the printer was operating with PETG filament. Approximately 15 to 30 minutes after a routine check, smoke alarms were triggered. The user discovered dense smoke and flames emanating from the rear of the machine, and the fire escalated too rapidly to be controlled with a home fire extinguisher.<ref name="RedditPost" />

	The incident's scope expanded significantly when the user reported that their attempts to warn other owners on the official r/QidiTech3d subreddit were censored. They claimed their posts were removed and their account was permanently banned from the forum.<ref name="RedditPost" /> This action was perceived by the broader community as an attempt to suppress critical safety information, triggering the "Streisand effect," where the effort to censor the report amplified its reach across social media and 3D printing news outlets.<ref name="Fabbaloo">{{Cite web \|last=Stevenson \|first=Kerry \|date=4 Apr 2025 \|title=Reports Emerge of Fires Caused by Qidi Plus 4 3D Printer \|url=https://www.fabbaloo.com/news/reports-emerge-of-fires-caused-by-qidi-plus-4-3d-printer \|access-date=5 Aug 2025 \|website=Fabbaloo}}</ref>		The incident's scope expanded significantly when the user reported that their attempts to warn other owners on the official r/QidiTech3d subreddit were censored. They claimed their posts were removed and their account was permanently banned from the forum.<ref name="RedditPost" /> This action was perceived by the broader community as an attempt to suppress critical safety information, triggering the "Streisand effect," where the effort to censor the report amplified its reach across social media and 3D printing news outlets.<ref name="Fabbaloo">{{Cite web \|last=Stevenson \|first=Kerry \|date=4 Apr 2025 \|title=Reports Emerge of Fires Caused by Qidi Plus 4 3D Printer \|url=https://www.fabbaloo.com/news/reports-emerge-of-fires-caused-by-qidi-plus-4-3d-printer \|access-date=5 Aug 2025 \|website=Fabbaloo}}</ref>

← Older revision		Revision as of 07:18, 23 February 2026
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	\|Description=A 3D printer allegedly caused a house fire, and in response, QIDI Tech banned the customer from their subreddit.		\|Description=A 3D printer allegedly caused a house fire, and in response, QIDI Tech banned the customer from their subreddit.
	}}		}}
	In early 2025, a consumer reported a catastrophic house fire allegedly caused by a Qidi Tech Plus 4 3D printer. The incident gained widespread attention after the user claimed their report was censored on the company's official subreddit.<ref name="RedditPost">{{Cite web \|author=r/3Dprinting \|date=31 March 2025 \|title=R/QidiTech3d Permanently banned me for warning people after my family lost everything from a fire! \|url=https://www.reddit.com/r/3Dprinting/comments/1jnuju1/rqiditech3d_permanently_banned_me_for_warning/ \|access-date=5 Aug 2025 \|website=[[Reddit]]}}</ref> The subsequent public outcry led to a community-driven technical investigation that identified potential systemic design flaws, including an under-specified Solid-State Relay (SSR) and the absence of a thermal fuse, which could lead to thermal runaway.<ref name="MakerForums">{{Cite web \|date=1 Apr 2025 \|title=Qidi permanently banned a customer for reporting that a Qidi Plus4 caught fire and destroyed their entire house \|url=https://forum.makerforums.info/t/qidi-permanently-banned-a-customer-for-reporting-that-a-qidi-plus4-caught-fire-and-destroyed-their-entire-house/92980 \|access-date=5 Aug 2025 \|website=Maker Forums}}</ref> In response, Qidi Tech initiated a program to provide replacement parts and released firmware updates, though the adequacy of these solutions was debated within the 3D printing community.<ref name="PFF164">{{Cite web \|author=@3DMusketeers \|date=1 Nov 2024 \|title=Fire Hazards & Fight Club Fails! - PrintFixFriday 164 \|url=https://www.youtube.com/watch?v=pvhohMVPl1Q \|access-date=5 Aug 2025 \|website=[[YouTube]]}}</ref>		In early 2025, a consumer reported a catastrophic house fire allegedly caused by a Qidi Tech Plus 4 3D printer. The incident gained widespread attention after the user claimed their report was censored on the company's official subreddit.<ref name="RedditPost">{{Cite web \|author=r/3Dprinting \|date=31 March 2025 \|title=R/QidiTech3d Permanently banned me for warning people after my family lost everything from a fire! \|url=https://www.reddit.com/r/3Dprinting/comments/1jnuju1/rqiditech3d_permanently_banned_me_for_warning/ \|access-date=5 Aug 2025 \|website=[[Reddit]] \|archive-url=http://web.archive.org/web/20250404082000/https://old.reddit.com/r/3Dprinting/comments/1jnuju1/rqiditech3d_permanently_banned_me_for_warning/ \|archive-date=4 Apr 2025}}</ref> The subsequent public outcry led to a community-driven technical investigation that identified potential systemic design flaws, including an under-specified Solid-State Relay (SSR) and the absence of a thermal fuse, which could lead to thermal runaway.<ref name="MakerForums">{{Cite web \|date=1 Apr 2025 \|title=Qidi permanently banned a customer for reporting that a Qidi Plus4 caught fire and destroyed their entire house \|url=https://forum.makerforums.info/t/qidi-permanently-banned-a-customer-for-reporting-that-a-qidi-plus4-caught-fire-and-destroyed-their-entire-house/92980 \|access-date=5 Aug 2025 \|website=Maker Forums \|archive-url=http://web.archive.org/web/20251001015153/https://forum.makerforums.info/t/qidi-permanently-banned-a-customer-for-reporting-that-a-qidi-plus4-caught-fire-and-destroyed-their-entire-house/92980 \|archive-date=1 Oct 2025}}</ref> In response, Qidi Tech initiated a program to provide replacement parts and released firmware updates, though the adequacy of these solutions was debated within the 3D printing community.<ref name="PFF164">{{Cite web \|author=@3DMusketeers \|date=1 Nov 2024 \|title=Fire Hazards & Fight Club Fails! - PrintFixFriday 164 \|url=https://www.youtube.com/watch?v=pvhohMVPl1Q \|access-date=5 Aug 2025 \|website=[[YouTube]] \|archive-url=https://preservetube.com/watch?v=pvhohMVPl1Q \|archive-date=23 Feb 2026}}</ref>

	==Background==		==Background==

	Zhejiang Qidi Electronic Co., Ltd., operating as Qidi Tech, is a Chinese manufacturer of 3D printers founded in 2014. The company produces a range of Fused Deposition Modeling (FDM) and resin-based printers for hobbyists and professional users.<ref name="QidiAbout">{{Cite web \|title=About QIDI Tech \|url=https://eu.qidi3d.com/pages/about \|access-date=5 Aug 2025 \|website=[[QIDI]]}}</ref>		Zhejiang Qidi Electronic Co., Ltd., operating as Qidi Tech, is a Chinese manufacturer of 3D printers founded in 2014. The company produces a range of Fused Deposition Modeling (FDM) and resin-based printers for hobbyists and professional users.<ref name="QidiAbout">{{Cite web \|title=About QIDI Tech \|url=https://eu.qidi3d.com/pages/about \|access-date=5 Aug 2025 \|website=[[QIDI]] \|archive-url=http://web.archive.org/web/20251209160431/https://eu.qidi3d.com/pages/about \|archive-date=9 Dec 2025}}</ref>

	The product at the center of the controversy is the Qidi Tech Plus 4, a CoreXY 3D printer. A key feature of the Plus 4 is its large, fully enclosed build volume with an actively heated build chamber capable of reaching temperatures up to 65°C. This feature is critical for printing with engineering-grade materials like ABS and nylon, which are prone to warping without a consistently hot environment.<ref name="TomsHardware">{{Cite web \|last=Bertacchi \|first=Denise \|date=18 Apr 2025 \|title=QIDI Plus4 Review: Bigger is Better \|url=https://www.tomshardware.com/3d-printing/qidi-plus4-review \|access-date=5 Aug 2025 \|website=Tom's Hardware}}</ref> The high-power electrical system required to heat the chamber became the focal point of the subsequent safety concerns.		The product at the center of the controversy is the Qidi Tech Plus 4, a CoreXY 3D printer. A key feature of the Plus 4 is its large, fully enclosed build volume with an actively heated build chamber capable of reaching temperatures up to 65°C. This feature is critical for printing with engineering-grade materials like ABS and nylon, which are prone to warping without a consistently hot environment.<ref name="TomsHardware">{{Cite web \|last=Bertacchi \|first=Denise \|date=18 Apr 2025 \|title=QIDI Plus4 Review: Bigger is Better \|url=https://www.tomshardware.com/3d-printing/qidi-plus4-review \|access-date=5 Aug 2025 \|website=Tom's Hardware \|archive-url=http://web.archive.org/web/20251011072619/https://www.tomshardware.com/3d-printing/qidi-plus4-review \|archive-date=11 Oct 2025}}</ref> The high-power electrical system required to heat the chamber became the focal point of the subsequent safety concerns.

	==The incident: House fire and censorship allegations==		==The incident: House fire and censorship allegations==
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	The controversy began on March 31, 2025, when Reddit user u/ProgressLocal1511 alleged that their Qidi Tech Plus 4 printer had catastrophically failed and started a fire that resulted in the complete destruction of their home. According to the user's account, the printer was operating with PETG filament. Approximately 15 to 30 minutes after a routine check, smoke alarms were triggered. The user discovered dense smoke and flames emanating from the rear of the machine, and the fire escalated too rapidly to be controlled with a home fire extinguisher.<ref name="RedditPost" />		The controversy began on March 31, 2025, when Reddit user u/ProgressLocal1511 alleged that their Qidi Tech Plus 4 printer had catastrophically failed and started a fire that resulted in the complete destruction of their home. According to the user's account, the printer was operating with PETG filament. Approximately 15 to 30 minutes after a routine check, smoke alarms were triggered. The user discovered dense smoke and flames emanating from the rear of the machine, and the fire escalated too rapidly to be controlled with a home fire extinguisher.<ref name="RedditPost" />

	The incident's scope expanded significantly when the user reported that their attempts to warn other owners on the official r/QidiTech3d subreddit were censored. They claimed their posts were removed and their account was permanently banned from the forum.<ref name="RedditPost" /> This action was perceived by the broader community as an attempt to suppress critical safety information, triggering the "[[wikipedia:Streisand effect\|Streisand effect]]," where the effort to censor the report amplified its reach across social media and 3D printing news outlets.<ref name="Fabbaloo">{{Cite web \|last=Stevenson \|first=Kerry \|date=4 Apr 2025 \|title=Reports Emerge of Fires Caused by Qidi Plus 4 3D Printer \|url=https://www.fabbaloo.com/news/reports-emerge-of-fires-caused-by-qidi-plus-4-3d-printer \|access-date=5 Aug 2025 \|website=Fabbaloo}}</ref>		The incident's scope expanded significantly when the user reported that their attempts to warn other owners on the official r/QidiTech3d subreddit were censored. They claimed their posts were removed and their account was permanently banned from the forum.<ref name="RedditPost" /> This action was perceived by the broader community as an attempt to suppress critical safety information, triggering the "[[wikipedia:Streisand effect\|Streisand effect]]," where the effort to censor the report amplified its reach across social media and 3D printing news outlets.<ref name="Fabbaloo">{{Cite web \|last=Stevenson \|first=Kerry \|date=4 Apr 2025 \|title=Reports Emerge of Fires Caused by Qidi Plus 4 3D Printer \|url=https://www.fabbaloo.com/news/reports-emerge-of-fires-caused-by-qidi-plus-4-3d-printer \|access-date=5 Aug 2025 \|website=Fabbaloo \|archive-url=http://web.archive.org/web/20251015023510/https://www.fabbaloo.com/news/reports-emerge-of-fires-caused-by-qidi-plus-4-3d-printer \|archive-date=15 Oct 2025}}</ref>

	==Community technical investigation==		==Community technical investigation==
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	===Solid-state relay (SSR) failure===		===Solid-state relay (SSR) failure===

	The primary component identified as a point of failure was the Solid-State Relay (SSR), an electronic switch that controls power to the mains-powered chamber heater. The investigation concluded that the SSR was under-specified for the electrical load, particularly in regions with a 110V power grid. The higher current draw at 110V caused the SSR to operate near its maximum rating, leading to overheating and a high likelihood of failure.<ref name="RedditSSR_PSA">{{Cite web \|author=r/QIDI \|date=2024 \|title=PSA: SSR Safety Issues With Qidi Tech PLUS 4 Printer: 'The way it's been handled so far can only be described as negligent... As of right now I cannot recommend this printer.' \|url=https://www.reddit.com/r/QIDI/comments/1ghh06b/psa_ssr_safety_issues_with_qidi_tech_plus_4/ \|access-date=5 Aug 2025 \|website=[[Reddit]]}}</ref>		The primary component identified as a point of failure was the Solid-State Relay (SSR), an electronic switch that controls power to the mains-powered chamber heater. The investigation concluded that the SSR was under-specified for the electrical load, particularly in regions with a 110V power grid. The higher current draw at 110V caused the SSR to operate near its maximum rating, leading to overheating and a high likelihood of failure.<ref name="RedditSSR_PSA">{{Cite web \|author=r/QIDI \|date=2024 \|title=PSA: SSR Safety Issues With Qidi Tech PLUS 4 Printer: 'The way it's been handled so far can only be described as negligent... As of right now I cannot recommend this printer.' \|url=https://www.reddit.com/r/QIDI/comments/1ghh06b/psa_ssr_safety_issues_with_qidi_tech_plus_4/ \|access-date=5 Aug 2025 \|website=[[Reddit]] \|archive-url=http://web.archive.org/web/20241125065259/https://old.reddit.com/r/QIDI/comments/1ghh06b/psa_ssr_safety_issues_with_qidi_tech_plus_4/ \|archive-date=25 Nov 2024}}</ref>

	Crucially, a common failure mode for an SSR is to fail "closed," meaning it becomes permanently stuck in the "on" position. This allows unregulated power to flow to the heating element, causing a thermal runaway where the temperature rises uncontrollably until a component ignites.<ref name="MakerForums" />		Crucially, a common failure mode for an SSR is to fail "closed," meaning it becomes permanently stuck in the "on" position. This allows unregulated power to flow to the heating element, causing a thermal runaway where the temperature rises uncontrollably until a component ignites.<ref name="MakerForums" />
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	==Qidi Tech's response==		==Qidi Tech's response==

	Following public backlash, Qidi Tech acknowledged a problem with the "heater power boards" in printers operating in 110V regions. The company's official statement attributed the issue to "high temperatures" causing "accelerated aging of the inductor" but asserted there was "no fire risk associated with this issue".<ref name="All3DP">{{Cite web \|last=Mensley \|first=Matthew \|date=7 Nov 2024 \|title=Plus4 Issue Prompts Qidi Tech to Offer Replacement Parts \|url=https://all3dp.com/4/plus4-issue-prompts-qidi-tech-to-offer-replacement-parts/ \|access-date=5 Aug 2025 \|website=All3DP}}</ref>		Following public backlash, Qidi Tech acknowledged a problem with the "heater power boards" in printers operating in 110V regions. The company's official statement attributed the issue to "high temperatures" causing "accelerated aging of the inductor" but asserted there was "no fire risk associated with this issue".<ref name="All3DP">{{Cite web \|last=Mensley \|first=Matthew \|date=7 Nov 2024 \|title=Plus4 Issue Prompts Qidi Tech to Offer Replacement Parts \|url=https://all3dp.com/4/plus4-issue-prompts-qidi-tech-to-offer-replacement-parts/ \|access-date=5 Aug 2025 \|website=All3DP \|archive-url=http://web.archive.org/web/20251001015156/https://all3dp.com/4/plus4-issue-prompts-qidi-tech-to-offer-replacement-parts/ \|archive-date=1 Oct 2025}}</ref>

	As a remedy, Qidi Tech initiated a program to ship "optimized replacement heater power boards" to affected customers and released firmware updates with "optimized chamber heating logic."<ref name="QidiFirmware">{{Cite web \|title=Firmware Download \|url=https://qidi3d.com/pages/firmware-download \|access-date=5 Aug 2025 \|website=[[QIDI]]}}</ref> However, these solutions were criticized by many commentators as an inadequate software patch for a fundamental hardware safety flaw, arguing that no firmware could prevent a fire if the physical SSR component failed.<ref name="PFF164" />		As a remedy, Qidi Tech initiated a program to ship "optimized replacement heater power boards" to affected customers and released firmware updates with "optimized chamber heating logic."<ref name="QidiFirmware">{{Cite web \|title=Firmware Download \|url=https://qidi3d.com/pages/firmware-download \|access-date=5 Aug 2025 \|website=[[QIDI]] \|archive-url=http://web.archive.org/web/20260105185631/https://qidi3d.com/pages/firmware-download \|archive-date=5 Jan 2026}}</ref> However, these solutions were criticized by many commentators as an inadequate software patch for a fundamental hardware safety flaw, arguing that no firmware could prevent a fire if the physical SSR component failed.<ref name="PFF164" />

	==Consumer and media reaction==		==Consumer and media reaction==