FlyingBear P905 $4 Bed Leveling

thingiverse

DO NOT LEAVE THE GAUGE ON YOUR PRINTER WHILE PRINTING, IT WILL CAUSE DAMAGE TO YOUR PRINTER. This gauge mount makes leveling your X-axis gantry with your entire printer bed fast and easy, corner-to-corner to within +/- 0.01mm of accuracy or better. Your first layer will be the most uniform it's ever been, whether you have auto-leveling or not. It is also a great diagnosis tool for bed leveling problems. You can readily see precisely how your bed leveling efforts are affecting your bed. It's much faster than printing a calibration grid to find low and high spots. In other words, you can see your adjustments "LIVE" as you make them. There are different versions of these tire tread depth gauges, so be sure to buy the same one. This is the one I bought for $4: https://www.ebay.com/itm/0-25-4mm-Digital-Car-Tyre-Tread-Depth-Gauge-Tester-Meter-Measurer-Tool-Black-LJ/112664501069?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Here is the same gauge on Amazon with faster delivery: https://www.amazon.com/Audew-Digital-Tread-Depth-Gauge/dp/B078TCYPR7/ref=sr_1_10?ie=UTF8&qid=1532044794&sr=8-10&keywords=tire+tread+depth+gauge Mounting the gauge: Before putting the gauge in the mount, remove the tension spring. Image #5 shows the back of the gauge with the label removed to expose four Philips head screws. Image #6 shows the probe tension spring. Remove this spring and reassemble the gauge. Make sure the probe is reading the left edge of the bed. Zero the gauge. Move the gauge to the right side of the bed and take a reading. Example for a negative reading: Right side reading is -0.20. Divide -0.20 by 2 = -0.10. Multiply -0.10 by -1 (negative one) = +0.10. Adjust the right Z-motor until it reads +0.10. Example for a positive reading: Right side reading is +0.20. Divide +0.20 by 2 = +0.10. Multiply +0.10 by -1 (negative one) = -0.10. Adjust the right Z-motor until it reads -0.10. Now, let's check if we are level. Zero the gauge while it is still mounted on the right side. Move the gauge back to the left side of the bed and take a reading. You should now be within +/- 0.01mm of level. If not, repeat one more time. If you repeat these steps a second time, you can usually achieve 0.00mm to 0.01mm of leveling. This gauge is very sensitive. If your arms are resting on your desk, it will affect your accuracy. From this point on, you only need to adjust the right Z-motor to get your X-axis level. The gauge has both inches and mm modes. I find the inch mode easier because I don't have to deal with decimal points. You will find these steps are much faster and easier to do than they sound. -VegasGuy Thanks VegasGuy! This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/aMjNrWHX3mU