Mysterious small set screw fell out during Initial first layer calibration
 
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Mysterious small set screw fell out during Initial first layer calibration  

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trollwarlord7
(@trollwarlord7)
New Member
Mysterious small set screw fell out during Initial first layer calibration

Hi all.

I was performing my first time setup and a small set screw (?) fell out as the it started extruding for the first time. It was sucked onto the edge of the magnetic print bed. I thought it was from the nearby area so went to pick it up with by hand, but it was very hot and I threw it away on reflex. So, probably from the extruder. Now that I can't find the screw, does anyone know where it's possibly from and what it's for?

 

It was about 5mm long and looked similar to this:

It looked similar to this

Best Answer by Baklin:

If it was that hot I would expect that it was the crubscrew holding the thermistor in the hotend.

This small crubscrew:

 

It is in the hole next to the nozzle.

 

 

I don't see it on the spare parts bag in the shop. But I have one in my parts box and so I'm sure you should have a spare too. I never ordered any so it must have come with my printer. It is m3x3.

Postato : 22/06/2021 4:09 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Mysterious small set screw fell out during Initial first layer calibration

there is a grubscrew in the extruder hobbed gear, M3 x 2mm
and two grubscrews in each X &Y toothed wheel M3 x 3mm, and there is one in the heaterblock holding the thermistor in place... M3 x ?? suspect 3mm

Take your pick!

Regards Joan

 

 

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Postato : 22/06/2021 4:26 pm
trollwarlord7 hanno apprezzato
trollwarlord7
(@trollwarlord7)
New Member
Topic starter answered:
RE: Mysterious small set screw fell out during Initial first layer calibration

@joantabb

Thank you for your reply Joan! After checking according to your message it seems like the one in the heater block fell out, shown in the picture below:

Could you confirm the specs for me? I may have lost the screw. Thank you!

Postato : 22/06/2021 5:23 pm
Baklin
(@baklin)
Reputable Member
RE: Mysterious small set screw fell out during Initial first layer calibration

If it was that hot I would expect that it was the crubscrew holding the thermistor in the hotend.

This small crubscrew:

 

It is in the hole next to the nozzle.

 

 

I don't see it on the spare parts bag in the shop. But I have one in my parts box and so I'm sure you should have a spare too. I never ordered any so it must have come with my printer. It is m3x3.

Postato : 22/06/2021 7:39 pm
trollwarlord7 hanno apprezzato
trollwarlord7
(@trollwarlord7)
New Member
Topic starter answered:
RE: Mysterious small set screw fell out during Initial first layer calibration

@baklin

Indeed that's missing. I searched through my kit but unfortunately I didn't find one. I'll be looking for a replacement instead. Thank you for helping me!

Postato : 22/06/2021 7:59 pm
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