After about a month of use, I disassembled all four toolheads for cleaning — cleaned them, lubricated the parts that needed it, and cleaned underneath as well. Then I reinstalled all four.
Initially, all four toolheads seated correctly and the red indicator dot disappeared completely on every one — Toolhead 1 behaved exactly like Toolhead 2, both perfectly fine.
However, when the printer runs a device calibration (which automatically picks up each toolhead and re-parks it), I noticed a problem: after the printer picks up Toolhead 1 and places it back down, the red dot appears again, as if it isn’t seated properly — even though it was fine before that pick-and-place cycle.
With Toolhead 3, the issue is worse — the red dot never disappears at all, no matter how many times I manually remove and reinstall it.
I tried printing with Toolhead 3 anyway, thinking the issue might be cosmetic and not actually affect performance. But partway through the print, it failed to park correctly after a tool change, and I had to stop the print and manually reseat it myself. Since then, I haven’t been able to reliably print with either Toolhead 1 or Toolhead 3.
I’ve gone through the official Snapmaker Wiki and YouTube troubleshooting guides, but none of the suggested steps have resolved the issue. I’ve tried everything I can think of — readjusting the latch, reseating the toolhead multiple times, checking the locating pins — but the problem persists.
Has anyone else experienced this, especially after the pick-and-park calibration? What else can I try before requesting a replacement part?
