Unboxing, setup, and first prints with the new Anycubic Kobra S1 Combo. From multi-material masks to practical test prints.

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👉 Full review: https://3dwithus.com/anycubic-kobra-s1-combo-review-3d-printer-tests-tips-and-settings

Edited May 4May 4 by Will Zoobkoff

Hello everyone. I have a problem with the Anycubic Cobra S1 combo. While I was accidentally removing the front cover on this printer, I cut the wires that are used for the fan that cools the model, and since then that fan hasn't been working when I reconnect it to its place. I tested the fan itself, and it works without any problems, but when I reconnect it to its place, it won't start at all when I begin printing. I'm wondering if anyone understands whether a short circuit might have caused some damage to the board behind the hotend where the fan connects, or if the problem is something else?

On 5/28/2025 at 6:20 PM, Danijel Djukic said:

Hello everyone. I have a problem with the Anycubic Cobra S1 combo. While I was accidentally removing the front cover on this printer, I cut the wires that are used for the fan that cools the model, and since then that fan hasn't been working when I reconnect it to its place. I tested the fan itself, and it works without any problems, but when I reconnect it to its place, it won't start at all when I begin printing. I'm wondering if anyone understands whether a short circuit might have caused some damage to the board behind the hotend where the fan connects, or if the problem is something else?

Yes, it is highly likely that when the wires were cut, they momentarily touched (created a short circuit), which damaged a small component on the printhead board where the fan connects. Since you've confirmed the fan itself works, the problem is almost certainly with the board that provides power to it.