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Joined 1 year ago
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Cake day: August 15th, 2023

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  • All good! It’s the same situation as I described and I see that increasing temps did help. It’s good to do a temperature tower test for quality and also a full speed test after that. After temperature calibration, print a square that is only 2 or 3 bottom layers that covers the entire bed at full speed or faster. (It’s essentially a combined adhesion/leveling/extrusion volume/z offset test, but you need to understand what you are looking at to see the issues separately.)

    If you have extrusion problems, the layer line will start strong from the corners, get thin during the acceleration and may thicken up again at the bottom of the deceleration curve. A tiny bit of line width variation is normal, but full line separation needs attention.

    Just be aware if you get caught in a loop of needing to keep bumping up temperatures as that starts to get into thermistor, heating element or even some mechanical issues/problems.








  • 185C is cold for PLA. It may work for slow prints, but my personal minimum has always been around 200C and my normal print temperature is usually at 215C.

    Long extrusions are probably sucking out all the heat from the nozzle and it’s temporarily jamming until the filament can heat up again.

    Think of the hotend as a reservoir for heat. For long extrusions, it will drain really fast. Once the hotend isn’t printing for a quick second, it will fill back up really fast. At 185C, you are trying to print without a heat reservoir. I mean, it’ll work, but not during intense or extended extrusions.







  • The proper metric to plan around is longevity, unless you absolutely need performance now.

    Performance and cost should be divided by time. Do you think that bit of hardware will be able to support software for the next two years, or five? That is one way to “compute” value, anyway.

    A 4090 will eventually be outdated and unable to run new software, but that may not happen for a good number of years. If you want to get super deep, start crunching the numbers on power costs too. It may simply become too inefficient to run, eventually. (Hell, it’s probably super inefficient now, actually.)

    I almost always buy top-tier “last-gen” tech, right after “new-gen” is released when I am saving money. When I have the extra cash and it makes sense, top-tier may also be a good investment.

    Be honest with yourself and determine what matters most to you and put your money there.