Why with the da vinci 1.0 does the bed and hot end have to heat up to level the bed? It would take so much less time to calibrate the bed if you did not have to heat up the hot end and bed as well have to clean the hot end. I know that you have to have a clean hot end to do the calibration but when you are performing this task oven and over again the hot end is probably already clean.
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The printed bed and nozzle expand a little when they are hot, which leads to the calibration not being correct if you do it cold.
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It sucks that it doesn’t stay heated until you’re done, you only have one shot, Makerbot stays in the calibration mode until you say its done, even after multiple attempts which would be better since after every attempt you have to restart the heating process. It is interesting that it does that when that would be an easy fix.
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It is general practice to calibrate accurate machinery when these are in operating condition. Temperature can have an impact on the geometry of machines structural components. The bed can cause the (metal) baseframe to grow or warp. Also a hot end can influence it surroundings and construction. This said a ‘hot’ machine will have a different geometric condition than a ‘cold’ machine. If you callibrate in machine in ‘cold’ condition than you run a chance that is will behave differently when it is in ‘warm’ condition. (the question remains however how big the impact is. . .)
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Things expand when heated and thats why it needs to be done when hot. Connect the printer to pronterface/simplify3d and enable the heaters. Then if you accidentally exit out the heaters will stay hot. If yoy have flashed with repetier then they stay hot until you exit.
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Yea, thermal expansion. You should only have to calibrate once in awhile, I can print for about 50 hours before I decide to calibrate, even then it’s just habbit.
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There is something called the coefficient of expansion, or, for you, things grow when they get hot. So to get an accurate measurement, the need to be at temperature is ideal.
It stays heated in Repetier mode, not sure about official.
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Calibration is a bit of a pain with the build plate cooling down, but this is likely due to expansion when it heats up. It would be nice to have the option to keep some things heated, however I have only needed to calibrate my printer once and I’ve had it almost a year now.
