#Why Happens this ?

1 messages · Page 1 of 1 (latest)

hard violet
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is is overextrusion ? or why i get this parts ? its ABS and i Print on 245°

20230716_212438.jpg
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thats what i try to print

reef valve
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could have many reasons moisture is verycommon as reason

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but do you have a ptfelined hotend?

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@hard violet

hard violet
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mhh

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u mean the little hose for the filament to the hotend ?

reef valve
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yes

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which printer do you have

hard violet
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ender 3

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but i changed the tube

reef valve
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okay there are 2 possible reasons

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first the tube got loose and you have alittle material stuck in the hotend

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the more possible one is

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time stamped it

hard violet
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mhh i print at 245 mhhh

reef valve
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yeah quick way to destry your printer

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they really lie about that

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for at least the 8 years or so i have that hobby

hard violet
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okay what u think is the max temp `?

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do you think this could help ?

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ok its goes loose again...

reef valve
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no it doesnt

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the max temp of ptfe is 220 thats where it starts to decompse soo 215 is

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but there are allmetal heatbreaks that fix that issue

hard violet
reef valve
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there is also the chance you had heatcreep. ( cooling of the heatsink unsufficent

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do you have a clogged hotend?

hard violet
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nope seems to be free

reef valve
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also if oyu have a pet bird the teflon fumes are really toxic for them

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overall your printer is not really suited for abs the lack of an enclosure the wrong hotendtype and the lack of filtration ... so its really no good idea to print abs on it ..

hard violet
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mhhh okay but PLA is not strong enough.. mhhh

reef valve
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what do you want to print ( make

hard violet
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parts that are in summe rin the sunlight it could be very warm

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u say i need a new hotend to print abs ?

reef valve
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and an enclosure

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also a filamentdryer but that can be improvised with a cardboard box

hard violet
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its alredy between ikea tables 😉

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i only have to close them

reef valve
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okay not the best heat but should be enough

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about the hotend

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you can switch out the heatbreak with an allmetal one

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that can cause heatcreep though

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since the finspacing on the heatsink is pretty tight

hard violet
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mhhh

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whats the different between an all metal and a stock hotend ?

reef valve
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jesus christ

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as example

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here you can see that the finspacing is creater

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because the small finspace is not good if you go for high temps

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because that prevents the fan from pushing air through

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also the heatbreak the part that connects the heatblock to the heatsink is made of metal

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so the ptfe tube does not go down all the way into the hotend