Snapping sounds/New to 3d Printing
As the printer is printing, you hear snapping sounds.
Is the z axis to low?
If so, here's the problem , if I live z adjust up, the filament won't stick on the V2 calibration print.
And that's another thing. Left and right won't stick sometimes, while front and back will, during calibration print.
Here's the thing.
I built the i3 mk2s kit, even built it perpendicular, all the prints were magic, even printed the gear on the sd card, it printed able to move without having to be broken free.
I changed the z bearings for the aluminum cased drylin bearings. I thought that the frame was straight, it moved ok a little tight toward the back, thought nothing of it since they were new, and figured it just needed me re movement to self lube.
So I ran the xyz calibration test made it through the majority of the test until... it made it to test spot number seven in the sequence and dive bombed the bed.
I thought for sure that I was going to end up with horse shoes instead of x axis rods, they bent so much.
I don't know if it bent the bed or bars, but this snapping sound started after this incent.
My print have not been write since , and it crashed 3 more times since then.
I finally saw a video that said one end of the bed was wider than the other, and that fixed the slide problem but the snapping sound has not gone away and my print quality has not returned but has slightly improved.
Any help would be greatly appreciated
Re: Snapping sounds/New to 3d Printing
Hello Shawnee!
The drylin bearings are well known to demand very linear movements to be functioning well I think.
The snapping sound may come from some of the plastic parts (that may have been broken when the machine crashed) that the machine is made of - you could try to put a finger on the plastic parts one at a time and at different locations to be able to pinpoint the sound.
Are you printing from SD card or usb?
I do not print from SD card due to my machine may just crash into the endstops of the x-axis as well as y-axis at any given moment. That has not happened even once when printing from usb.
/Henrik
Re: Snapping sounds/New to 3d Printing
Henrik,
first thank you for the response.
The snapping sound is coming from the print itself, I think like maybe sounds like lines snapping. Which is why I thought maybe it was a z height issue. But when I run the calibration print and it doesn't want to stick, when I raise the z axis.
So I lower it again and of course the sound is still there the next print I do.
Like the tip of the extruded might be breaking lines or strings.
Would the bed have been bent when it crashed?
The extruded mashed hard onto the bed.
Re: Snapping sounds/New to 3d Printing
Sorry forgot to mention that I've printed mostly from the sad card and they all came out beautiful, that is until the crash.
One or two of the files from thingyverse have had issues with print but not from the card as of yet.
But at this point I would not be able to separate the two as the culprit/culprits.
Re: Snapping sounds/New to 3d Printing
Could you post a video of the snapping sound?
What do you mean by prints "crashed"?
Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss. If you solve your problem, please post the solution…
Re: Snapping sounds/New to 3d Printing
The extruder assembly / x axis crashed into or made extreme hard contact with the heatbed.
Re: Snapping sounds/New to 3d Printing
The snapping sound do seem to come from the print when the extruder moves fast.
Where there any curled plastic of the model that stroke the nozzle?
Was the printed object attached to the printbed at all sides when printing?
Just to be sure - did you recalibrate the machine after the crash?
Could there be another explanation of the sound? I imagine a loose ziptie stroking the belts on one axis.
/Henrik
Re: Snapping sounds/New to 3d Printing
A few things.
1) It would be good to go through a full XYZ Calibration again, from scratch. Reset Live Z, everything. Check that things are parallel, belts are tight, etc. Make sure the distance from the nozzle to the bed is nearly the same at multiple locations on the bed (this checks that things are all square.
2) Have you printed from the SD card since the crash? Are those printing okay? If so, it is a Slicer issue we are worried about. If those are failing (since the crash) then it is a hardware issue we are tracking down.
Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss. If you solve your problem, please post the solution…
Re: Snapping sounds/New to 3d Printing
Henri/Aaron
I talked with Shane from Prusa chat, and he pointed out that the bed could have been bent by the crash, and suggested that I use a straight ruler/square and see if light was showing through the bottom.
Well, let me put it this way...
I could watch the sunrise in the space that was lit up.
So I have ordered a new bed, but now I'm wondering about the rods, and maybe they are deformed. So I will order them Monday.
Thank you both for your help and suggestions.
Shawnee
Re: Snapping sounds/New to 3d Printing
Do either of you think that it's possible that the tip might have been damaged?
It is an Olson Ruby. Or maybe any part of the extruder assembly?
I don't hear any out of place sounds coming from it, the exstruder motor, or the x axis assembly.
But each time it crashed, the x a sis bars were deeply flexed.
What do you think?
Maybe?
Re: Snapping sounds/New to 3d Printing
I would check the plastic parts for cracks with a flashlight while wiggeling the extruder assembly up and down, to the sides as well as clockwise/counterclockwise. Inspect the individual layers for cracks that may widen when applying force. If all seems okay, then you probably are alright.
The Olsson ruby can be inspected from the outside and if you see pitting of the surface where the filament is squeezed out, then it might be affected. But I hardly think it will be damaged by pressure from the crash - it will probably take more of an impact from dropping it from a height onto a hard surface to destroy the tip.
/Henrik