Shaken Screw Syndrome?
I have tried to read as much as possible about problems people have had with assembling the Core One and 3D printing in general as I have just starting printing. However, I have not read anywhere in which people are having issues with the Fan Shroud staying attached. About a month ago I had a failure due to one screw falling out of the fan shroud. This morning I found both screws had fallen out of the Fan Shroud. The resulting mess does make me understand the term spaghetti monster much better.
Occam's Razor says the screws shook themselves loose over time, is Occam believable in this instance or should I be looking at something else? If Occam is right, beyond scheduling a tightening check every couple of weeks, is there anything I can do to keep the screws in place? Also, are there any other screws that have a tendency to shake themselves loose?
RE: Shaken Screw Syndrome?
When I replaced my fan shroud it was also because of a loose screw which caused the shroud to get pushed into the heat block and melt. I printed a new shroud and used blue Loctite on the screws
RE: Shaken Screw Syndrome?
When I replaced my fan shroud it was also because of a loose screw which caused the shroud to get pushed into the heat block and melt. I printed a new shroud and used blue Loctite on the screws
I am going to assume that Loctite 242 (temperature resistance to 150°C) would work, while it is close to the nozzle, it is not so close that using Loctite 246 (temperature resistance to 230°C) would be needed.
Have you had any other screws shake loose that I should consider using Loctite on?
RE: Shaken Screw Syndrome?
It's only an opinion, but in my printer every single metal-to-metal screw is threadlocked (excluding the thumb screws on the nozzle).
We've got thermal cycling, we've got non-negligible vibrations, we've got a gazillion screws in hard-to-reach places.
I understand the rationale of not promoting use of threadlock in the kit from a support perspective. But that serves the vendor, not me.
RE: Shaken Screw Syndrome?
When I replaced my fan shroud it was also because of a loose screw which caused the shroud to get pushed into the heat block and melt. I printed a new shroud and used blue Loctite on the screws
I am going to assume that Loctite 242 (temperature resistance to 150°C) would work, while it is close to the nozzle, it is not so close that using Loctite 246 (temperature resistance to 230°C) would be needed.
Have you had any other screws shake loose that I should consider using Loctite on?
When I installed the Hula feet (mistake in hindsight) the printer was shaking so much that I would find 2 or 3 screws stuck to the magnets underneath the print bed. Like @mnetwig I thread locked most of my screws that I can still reach.
RE: Shaken Screw Syndrome?
When I installed the Hula feet (mistake in hindsight) the printer was shaking so much that I would find 2 or 3 screws stuck to the magnets underneath the print bed. Like @mnetwig I thread locked most of my screws that I can still reach.
Okay, not one to pass up on reasonable advise, when the Loctite arrives it will be used on any metal to metal screws I can find. But what did you not like about the Hula feet? I have them installed and they seem to be helping, am I missing something?
RE: Shaken Screw Syndrome?
You'll probably get best results from a stock core one if you place it stiffly (stock rubber feet) on a solid surface. Then the printer moves the printhead.
Floating it, giving it more degrees of freedom to move, achieves the opposite: the print head moves the printer. Question is, do I want this. Why would I.
Take a hint from any "serious" piece of machinery that is placed on a firm foundation not floated on an air cushion. Unless the subway underneath rumbles so badly that it needs to be isolated.
No clear consensus on this one but neither on Loctite.
RE: Shaken Screw Syndrome?
When I installed the Hula feet (mistake in hindsight) the printer was shaking so much that I would find 2 or 3 screws stuck to the magnets underneath the print bed. Like @mnetwig I thread locked most of my screws that I can still reach.
Okay, not one to pass up on reasonable advise, when the Loctite arrives it will be used on any metal to metal screws I can find. But what did you not like about the Hula feet? I have them installed and they seem to be helping, am I missing something?
+1 on @mnentwig comment
Basically the printer was shaking so much that is was knocking out screws. The reason I installed it was I was on a mod spree (before I knew better). I get a quieter printer and better results with this mod Prusa core One feet v2 but using PEBA Air instead of TPU.
RE: Shaken Screw Syndrome?
The reason I installed it was I was on a mod spree (before I knew better).
Remember: "If it ain't broke, fix it until it is." -Unknown
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RE: Shaken Screw Syndrome?
+1 on @mnentwig comment
Basically the printer was shaking so much that is was knocking out screws. The reason I installed it was I was on a mod spree (before I knew better). I get a quieter printer and better results with this mod Prusa core One feet v2 but using PEBA Air instead of TPU.
The great part about 3D printing is that you can try many different things. Which means I can print the Core One Feet v2, install them, and make completely unscientific observations. I will be using TPU over PEBA Air. I have looked into PEBA Air and it looks like a very interesting filament, but not yet.
Thanks again for the advise
RE: Shaken Screw Syndrome?
+1 on @mnentwig comment
Basically the printer was shaking so much that is was knocking out screws. The reason I installed it was I was on a mod spree (before I knew better). I get a quieter printer and better results with this mod Prusa core One feet v2 but using PEBA Air instead of TPU.
The great part about 3D printing is that you can try many different things. Which means I can print the Core One Feet v2, install them, and make completely unscientific observations. I will be using TPU over PEBA Air. I have looked into PEBA Air and it looks like a very interesting filament, but not yet.
Thanks again for the advise
Another useful mod, it's similar to the short feet I linked but instead of TPU pads, you remove the adhesive and reuse the rubber feet. They pressure fit in.