A1 Mini & A1 Users: Solved: Screw fell out of toolhead

[lion7718]

I’ve seen a few posts here & doing a Google search over the weekend after it happened to me.

I noticed my first layer was bad, tramming the bed didn’t fix it.
I changed the Z-Offset in Bambu Studio, it worked for a few prints.
The Z -Offset would change during the print. The last print I started having extrusion issues. During a calibration a screw fell out of the toolhead. I took the toolhead apart & couldn’t find where the screw came from, I was at a lost & put in a support ticket.

Support sent me this pic, I had no idea that there were screws behind the plate.

This is what I found.

So, for A1 users this is something to check from time to time…maybe every 6 months.
All 4 of my screws were loose, I had no idea as the 3 front screws hold the nozzle tight to the toolhead. The 4 back screws hold the nozzle clip.

I hope this helps someone, it did for me…so thank support for the help.

[SupportAssistant]

We are happy to hear you were able to solve the problem.

This wiki article provides a bit more insight about the problem, and how to reach the screws to be tightened.

A1 Series First Layer Print Issues - First Layer Too Low, Hotend Moving

[ricaxe]

I think that part should be secure with a adhesive and the screws !

[user_2146855419]

记得有一种胶叫做 螺丝胶，以前玩航模的时候经常用，不知道这个有没有用。

[lion7718]

[quote=“user_2146855419, post:4, topic:97626, full:true”]
记得有一种胶叫做 螺丝胶，以前玩航模的时候经常用，不知道这个有没有用。
I remember there is a kind of glue called screw glue, which I often used when playing model airplanes. I don’t know if this is useful.[/quote]

Purple 222 or Blue 242 should work.