Quick Calibration Prints

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Many of the calibration pieces I've seen on Thingiverse use unnecessarily large amounts of time and filament that I prefer to spend on prints I'm going to keep. So I threw together some for personal use and decided to upload them in case someone else can make use of them. Best done in the following order. <b>1) Flow calibration:</b> Print this in vase mode or sprial outer contour (whatever your slicer calls it). This object should be tall enough that any warp from being too close or too far from the buildplate should be gone at the top. Take a few width measurements of the top wall thickness and average them. calculations: [slicer width setting] / [your measured width] = [new flowrate multiplier slicer setting] <b>2) 1st layer calibration / z-height calibration:</b> Each step of the staircase should be 0.1mm tall, except the first step is 0.2mm tall. So the total height of the object should be 1mm. Adjust the settings or build plate until the bottom step measures 0.2mm. Make sure to set your slicer to 0.2mm for the first layer thickness and 0.1mm layer thickness for the rest. <b>3) XY calibration:</b> The reason for the length is to minimize measurement error. The piece is designed to give multiples of 10mm on a perfect print. Be sure printer settings allow for 0.2mm walls. You will probably want to measure and compensate for some of the error. calculations: Measure the width of each notch. Width notch 1 = 0.043mm, Width notch 2 = 0.42mm, etc. Record the error. Error width notch 1 = 0.43mm - 0.4mm ideal width = .03mm error Error width notch 2 = 0.42mm - 0.4mm ideal width = 0.02mm error Measure the length between notches. distance n1 to n2 = 110.07mm For each measurement, account for half the estimated error for each notch from earlier Adjusted distance n1 to n2 = 110.07mm - (0.03mm / 2) - (0.02mm / 2) = 110.045mm Subtract the ideal measurement from each. (This number reflects the difference between the ideal and the measured distances.) difference n1 to n2 = 110.045mm - 110.0mm = .045mm Finally, divide each by the ideal and multiply by 100% (this gives the percentage long the print is in this dimension) %difference n1 to n2 = .045mm / 110mm * 100% = .409% Now you should have measurements like this for each notch from the base notch. Throw out anything that's very high or low and average (most values should be very near each other). You can adjust settings or just scale models to account for the difference In slicer scale x dimension by = 1/(1.00409) = .99591 <b>4) Z calib:</b> In theory should work just like XY calibration but mine measured with essentially no error so I didn't use this piece. Also designed to be printed in vase mode (will probably need a substantial brim).

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