Prusa 3d printer mk3 heatbed flatness level check and fix

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Is your Prusa mk2 mk3 mk3s heatbed flat? Use this simple file to check. It’s a 1 layer .200mm think sheet that covers most of the heatbed. If you check the heatbed with some kind of strait edge make sure you do it when the heatbed is as printing temperature. My MK3 and two MK3s all were not flat when at printing temperature.

Part file.
https://www.prusaprinters.org/prints/16639-prusa-3d-printer-mk3-heatbed-flatness-level-check-

This is what I use for a straight edge. Make sure to inspect it to make sure it's got a good flat edge before purchasing.
https://www.walmart.com/ip/Best-Look-12-In-Paint-Shield-Trim-Guide-PS2-DIB/44105262

Here's the springs.
https://www.mcmaster.com/1986K79/

DISCLAIMER
GKMAKEIT assumes no liability for bodily or property damage or injury incurred as a result of any of the information contained in this video. GKMAKEIT recommends safe practices when working with all devices, equipment and tools and recommends everyone follow manufacture instructions and safety guidelines.
Any injury, damage or loss that may result from improper use of these devices, equipment, tools or the information contained in this video is the sole responsibility of the user and not GKMAKEIT. Only attempt these projects if you can accept personal responsibility for the results, do at your own risk.