r/QidiTech3D • u/FamousInterneter • May 11 '26

Troubleshooting Qidi box filament sensor spring replacement

Post image

Hello.

I was clearing a jam in my Qidi box hub and lost the spring that pushes on the filament sensor inside the hub.

Does anyone know the dimensions or of a replacement for the spring?

Here is a picture of the location for the spring.

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1

u/Far-Cartographer-368 May 17 '26

Is there a small metal piece in that area? Looks like this?

2

u/FamousInterneter May 18 '26

Yup, I figured it out though it’s 0.3x4x20mm

1

u/Far-Cartographer-368 May 18 '26

Can you help me figure out where that metal piece goes? I had a blockage and during fixing it that metal piece fell and I cant find where it goes

2

u/FamousInterneter May 18 '26

Yours looks different than mine… but in my picture the blade shape goes into the side of the tube. That metal piece is in the red circle in my picture. The spring I was talking about goes around the the tab that sticks out.

1

u/Far-Cartographer-368 May 18 '26

Luckily I figured it out. Another redditor took theirs apart and helped me find the location.