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Leveling Procedure and Print Core Heating on S5 7.0.1


arj3090
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Posted · Leveling Procedure and Print Core Heating on S5 7.0.1

I was watching the printer to figure out why it takes so long to start a print and one thing stands out that wastes time. Just before leveling, the print core is brought up to temperature. Once the leveling starts, it seems the heat is turned off. With the nozzle repeatedly touching the glass, it cools the nozzle back down. This then requires the printer to wait again for the print core to heat up before starting the print. Why couldn't it continue to keep the print core up to temperature during leveling and save the time it takes to re-heat a second time?

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    Posted · Leveling Procedure and Print Core Heating on S5 7.0.1

    The reason why the heater is turned off before leveling starts is that there are many interferences from the heater that could cause a leveling error. 

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    Posted · Leveling Procedure and Print Core Heating on S5 7.0.1

    Would it be better to not heat the print core before leveling? If the core is at temperature on the first touch off point and cool for the last, I would have to guess there is a small amount of thermal expansion/contraction creating some inaccuracy in height measurement.

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    Posted · Leveling Procedure and Print Core Heating on S5 7.0.1

    Yes there could be a small difference between the beginning and the end, but not so much as when you level with the cold nozzle and print with the hot one. And additionally a hot print core is needed to soften any filament residues on the tip of the nozzle.

     

    Heating up a print core is quite fast, the time you notice after leveling and before starting the print is the print bed which takes much longer to heat up again and which is also turned off during leveling to avoid electrical interferences. 

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    Posted · Leveling Procedure and Print Core Heating on S5 7.0.1

    Softening the plastic on the tip makes sense. I do see a small blob stick to the glass at the start of leveling.

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