The 3D printer thread

Someone else had mentioned a while back to not use CPU style paste on stuff that gets this hot. That was of course after I had already used it.

My nozzle kit came with a small packet of crealitys paste. I just ordered a tube of creality's meant for the nozzles.
Hadn't even considered that, I was just buying cheap thermal paste. That stuff I'm using is only advertised for 150° C, not even enough for PETG. I guess I've been lucky, I've used the stuff on 2 printers and at least 4 nozzles with no issues.
 
So the poly maker pacf is twice as expensive as sunlu pagf.

Worth it.
Did 14 hour print with .4 nozzle and it's perfect.
290 nozzle
50 bed
45 chamber
My threads are correct
Are you using a bed temp of 50c for the entire print? While researching PA it seems like a lot of people recommend a higher bed temp to start, like 60 or 65. But then after the first couple of layers, slowly dropping to more like 50 or 55. Just curious if that is what you are doing?

I chickened out on learning with Nylon. I bought some cheap ABS to make some odds-and-ends parts and get things dialed in before I waste any of my expensive Nylon.

Are these buffer tube threads? I don't know the pitch, but those are pretty fine, right?
 
any ever got this error. ****ing hell 2529 k1c
1777898715607.png
 
Are you using a bed temp of 50c for the entire print? While researching PA it seems like a lot of people recommend a higher bed temp to start, like 60 or 65. But then after the first couple of layers, slowly dropping to more like 50 or 55. Just curious if that is what you are doing?

I chickened out on learning with Nylon. I bought some cheap ABS to make some odds-and-ends parts and get things dialed in before I waste any of my expensive Nylon.

Are these buffer tube threads? I don't know the pitch, but those are pretty fine, right?
Yes.
I'm using a fancy biqu build plate. Polymaker recommends 30-50. Sunlu recommended 50-70.
I printed the sunlu at 55-60, and the polymaker at 50.

I see no reason to vary the bed temp and the expansion/contraction of the plate changing temperatures seems like it could dislodge the part. That seems like something a person without a heated chamber may do to try and prevent the warp.

They were suppressor threads. 3/4-16 for a bushing.

I've printed plenty of threaded bits without issue, but there is a practical limit to how fine they can be based on nozzle size, layer height and how the model is oriented on the bed.

edit:
the #1 takeaway I've learned from the nylon is that it must be dried.
Brand new out of the package goes into the dryer for 12 hours.
depending on ambient humidity you will start to see issues with it being exposed in 4-6 hours.
It LOVES moisture.
So when I printed this the brand new roll of filament went into the dryer the night before, cooked, and I baked my dessicant as well for the drybox.
when you're printing a 14 hour print you need to accommodate that.
other than that, just like every other filament after you figure out your temps/flow rate.
I clicked the button on this thing at 2PM and when I came down at 6am it were done. No issues.
 

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google says uses a strain gauge for bed leveling.
it's probably damaged or has crept out of tolerance.
is there an option to rescale the load cell?
if not, probably just replacement
too much going on yesterday but i will look tonight by pulling the bed up one guy found a loose wire in the circuit board under there. maybe i will get that lucky.
 
Made some quick jigs to help drill holes in my welding table. Needed 2 since I'm doing an alternating pattern, might need different ones for the end. But its really easy to pop it on, align the center pin, remove and drill.

Obligatory safety sandals
 

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google says uses a strain gauge for bed leveling.
it's probably damaged or has crept out of tolerance.
is there an option to rescale the load cell?
if not, probably just replacement.
so last night i took bed off, maybe one bolt may have been slightly loose. i checked all the connections and reassembled and did the self check and now it works.
all the electrical connection looked ok. but i did push down each one and dont think any moved.
1777983476300.png
 
Not to ask too stupid of a question, but have you sat there and watched a print to see what's going on? You're not just hitting print and walking away?
 
what happens when you heat the extruder and just manually advance it?

what did you last print?
I've had problems going from nylon to other things because it never heats the nozzle hot enough to purge the nylon when you tell it to load PLA. Have to do it manually.
 
when it rains, it pours.

Now I'm getting error 2564, nozzle not heating as expected, AND the soc fan seems to have failed.

The nozzle one is odd, it heats up as fast as ever, but when the model fan kicks in right to 100%, it drops about 20° lickity split and it faults out before it even gets a chance to recover

Seems like possibly a bad thermocouple connection at the hot end, maybe it's not completely connected. Soc fan I haven't looked into yet

As long as I turn the model fan down to only come on to 70% max speed it won't fault, but it's definitely not supposed to do this.
 
when it rains, it pours.

Now I'm getting error 2564, nozzle not heating as expected, AND the soc fan seems to have failed.

The nozzle one is odd, it heats up as fast as ever, but when the model fan kicks in right to 100%, it drops about 20° lickity split and it faults out before it even gets a chance to recover

Seems like possibly a bad thermocouple connection at the hot end, maybe it's not completely connected. Soc fan I haven't looked into yet

As long as I turn the model fan down to only come on to 70% max speed it won't fault, but it's definitely not supposed to do this.
Make sure the nozzle is seated completly. I had a similar error and replacing the nozzle fixed it.
 
So far so good. Pulled the whole hot end out, didn't really find anything crazy.

Noticed the nozzle section was loose on the heatsink, started looking at it harder, and found the threads inside were completely grey, assuming from the CPU thermal compound I had used. It was dried, thinking it made itself a little barrier. Would make sense, the thermocouple would only be reacting to the heater and not the assembly with the nozzle

I cleaned everything with contact cleaner, that stuff melted the thermal compound right off. Also remembered I got a few new cuts on my hands today.

Anyways, I ran a really quick test and it didn't move when the model fan came on now. I ran a heater pid calibration and started a test print now.

Also, I want to beat up that 6 year old at creality whose job is to glue all the connectors together

Edit: aww yea it only dropped 3 degrees instead of 20. Lesson learned. CPU heatsink compound indeed bad (probably).

Still have to look at the soc fan. That's a tomorrow job I think.
 
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Nozzle had some smoo on it. Cleaned, and needeled it

PLA ****ed off again.

15478.jpg


Only error I get is lidar lens is dirty
 
Does anyone have a file for some of those brake line holders that hose clamp on for tube upper arms? I need a set of 3 for a 2" link with 4x 5/16" holes in them.

Edit: pic for reference

1778068050676.png
 
Does anyone have a file for some of those brake line holders that hose clamp on for tube upper arms? I need a set of 3 for a 2" link with 4x 5/16" holes in them.

Edit: pic for reference

1778068050676.png
Like this?
Screenshot 2026-05-06 at 7.25.15 AM.png

Or does stacking the holes not work?
 
Nozzle had some smoo on it. Cleaned, and needeled it

PLA ****ed off again.

15478.jpg


Only error I get is lidar lens is dirty


From this point of view it just looks like it's not sticking to the bed? Try a glue stick?

Some of those lines at the front of the bed looks really crappy, not sure if they're just for purging or?
 
From this point of view it just looks like it's not sticking to the bed? Try a glue stick?

Some of those lines at the front of the bed looks really crappy, not sure if they're just for purging or?
It seems like its not extruding correctly. the raft was stuck to the bed fine.

The ones at the front are just a pre print purge thing
 
Java my P1s does one pre-print purge line thing not a half dozen. Do you have something going on with the settings? tried different print files and they all fail to stick in some way?

ruled out wet/bad filament and build plate is cleaned with dawn right?

still a newbie, so likely not much help
 
Been fighting with this Crealty PETG filament printing like ****... MF, it wants to run 10*C hotter than my other PETG. Bumped up the nozzle temp and looking good so far. Lesson, pay attention to the label on your spool when swapping filament. :shaking:

I mostly use their PETG, the Creality PETG settings under Generic on Orca Slicer work great for K1 Max.
 
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