Qidi Plus 4

SaferProducts.gov consumer incident report 20241110-A969C-2147335418. Severity: Incident, No Injury. Product: Qidi Plus 4 (Qidi Plus 4 3D printer). Incident: Qidi Tech is a Chinese based 3D printer manufacturer. Their new product "Qidi Plus 4" has a faulty SSR board that powers the chamber heater. These SSR boards are not rated for the 110 volts commonly used in the USA and thus, are a fire hazard. The official user group on [REDACTED] has many posts showing users posting their machines SSR actually melting. Qidi Tech has NOT issued a recall, in fact, they are trying to sweep this under the rug. They are NOT proactively notifying consumers of the potential risk, in fact they claimed in emails submitted by users that there is "No risk of fire" which is absolutely not true. They are NOT issuing replacement boards to everyone, they are only issuing them to users who found out about this issue through the community groups and who ask for them. Moreover, these are electrical components that directly connect to the power, so the average user should NOT be attempting to do this repair themselves as Qidi wants them to do. I personally notified Qidi and told them what they are doing is criminal and demanded they recall the machines. They have ignored this. Houses, garages, barns, or anywhere else someone may setup this printer is at serious risk of a fire. The deliberate gas lighting of consumers, telling them there is no risk is unacceptable and something needs to be done immediately before someone is hurt or dies in a fire. Watch it melt here: [REDACTED]

SaferProducts.gov consumer incident report 20241104-0CB98-2147335556. Severity: No Incident, No Injury. Product: Qidi Plus 4 (Qidi Tech Plus 4 3D printer, gray/silver in color). Incident: In September of '24 I bought a Qidi Tech Plus 4 3 D printer. This printer is capable of printing high-temperature materials such as Nylon, Polycarbonate, ASA, ABS, etc. In order to successfully print those materials the printer relies on a closed environment-achieved by a removable glass top and a glass door as well as a chamber heater. This heater circulates warm/hot air throughout the build chamber of the printer and maintains a fairly consistent temperature for the duration of the print cycle, which can vary in duration. Depending upon the size of the model being printed the print time can be 30 minutes to 24 hours or so. This chamber heater is controlled by an SSR which is located on the inside rear of the machine. This SSR is not suited for our 110v system and in many cases is overheating to the point of turning the coils black and making it smoke. As a remedy, Qidi has offered replacement SSRs for the affected machines. This option is not acceptable as it requires the consumer to either pay someone else to replace the defective unit or do it themselves. This exposes the consumer to risk of electrical shock if they are not knowledgeable in this type of repair work. Qidi needs to recall and/or replace the affected machines. The SSR in my Plus 4 unit has blackened coils and another part on the SSR shows signs of getting too hot as it appears to be partially melted.

SaferProducts.gov consumer incident report 20241111-7ED39-2147335379. Severity: Incident, No Injury. Product: Qidi Plus 4 (Qidi Plus 4 3d printer https://qidi3d.com/products/plus4-3d-printer). Incident: I recently purchased a Qidi 3D printer called the Plus 4. This was a new model on the market and I ordered it at the end of September, receiving it October 1st. I used this printer for several weeks before discovering some serious safety issues. After two weeks of use, I noticed a very strong burning plastic smell from this device. On discussing the issue with other members on the official Qidi tech [REDACTED], I removed the back panel from my printer and discovered the line voltage Solid State Relay that controls power for the chamber heater had melted significantly. This began my attempts to get the company to recall the printer and fix the problem. Since then, the past few weeks have been a cluster of bad decisions from the manufacturer. I asked the company to send a notice to all purchasers that continued use of the chamber heater was unsafe. Several [REDACTED] videos have been made by other early users demonstrating the immediate need for a recall and replacement of this part. The manufacturer has put this off for weeks. They have responded that the tests weren't "fair", even when I presented my own evidence that this was a fire hazard. They sent out replacement parts only to people who specifically asked for them, and sent out the same defective part as original. They also updated the firmware on their printer, without telling any customers that this was required, to a setting which uses less power, but is still creating unsafe temperatures in this power supply. Upwards of 210C has been recorded on video by several people in testing. A few days ago they started shippi