@SlicerDicer Are you using glue to get the PLA to stick to the print bed?

I prefer PETG personally. You don't need glue and it's less brittle.

@Tfmonkey I’ve never used glue it’s always been fine. This is more about the surface.

@SlicerDicer Oh, I thought you meant the speckles on the PLA. If you're referring to the layers not adhering smoothly, it's because your temp is too low. you probably changed filament brands and didn't run a test print. It looks like your temp needs to be increased by 5-10 degrees, which should clear up those cracks between the layers.

@Tfmonkey Ahh so it’s too cold.

No I didn’t change the filament I changed the thermistor when I broke the 3D printer and had to do all kinds of invasive surgery. You can see my posts on it.

https://bikeshed.party/notice/AmEjTQcSGG3NCAMFfc

@SlicerDicer print a benchie boat and that will help you dial in your settings.

general the filament tells you the temps you should have the printer set to on the label, but sometimes you have to increase the temps by 5-10 degrees if things aren't sticking correctly.

@Tfmonkey Yeah I had to put it at 175c and it’s working now.

Should be able to go to 220. My thermistor is way off in calibration.
@Tfmonkey Now I’m at 170c and it is really printing good. That’s a huge offset.

@SlicerDicer good to hear that it's working. The only other thing you can do if raising the temp doesn't work is to slow down the print.

@Tfmonkey I really had no problems printing anything till I broke my printer. I’m not sure how to calibrate the thermistor in the unit. I may have to build a custom firmware for this to make it read the temperature correctly.

steinhardt calculations are not hard. If I can adjust that I will need to look. I used a 100k ohm thermistor so I’m confused why it’s showing such a difference in temperature to the original thermistor that got destroyed.
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@SlicerDicer I just use a cheap <$200 printer. If my thermistor broke I would probably just buy a whole new one as an upgrade because FDM printers have come a long way in the last few years, but I don't want to buy a new printer while the one I have works fine.

I just recognized the flaws in the print as being indicative of the temp being low. I'm not much of a printer hobbyist. I just print stuff for tabletop RPGs and games.

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@Tfmonkey I have a quite expensive lulzbot. It’s able to print ginormous things.
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