A Windows utility for 3D printers equipped with automatic levelers. It tests multiple points to evaluate bed flatness.
While troubleshooting prints that always peeled up in a particular spot, I spot-checked a few positions (with the "G30" g-code) and discovered the surface of the bed was a lot less linear than I'd expected. I wanted a clearer picture, so I created this utility. The variation between the highest peak and lowest valley was a quarter of a millimeter. That doesn't sound like much, but it's more than two print layers at 0.1mm layer height!
- Adjust the left/right and top/bottom boundaries in the box to match the dimensions of your printer. Giving all four dimensions (instead of just width/height) allows you to add a bit of margin in case the sensor's offset makes it go past the edge of the bed.
- Type in your printer's serial port address at the top left. If it's the only serial device connected, the address should be automatically detected.
- Click Connect.
- Your printer should automatically home, center, and measure the height. (G28 and G30)
- (If it doesn't, try disconnecting and clicking the "..." button next to the port name box. Here you can adjust advanced serial port connection settings. You may be able to find the "correct" values from other software that has successfully connected to your printer in the past. Check the Fields section in these links for the legal values possible for parity, stop, and handshake.)
- Click around in the field to measure that location. (G1 followed by G30)
- To measure many points automatically, click the "Measure every" button at the bottom-left. (Change the number in the box first if you'd like to adjust the spacing.)
Out of the box: probably most/all printers with English Marlin 1.x or 2.x firmware.
If text is appearing in the sidebar but you don't see any colored circles, try enabling the Custom option on the Detection tab and then fill in the pattern from the text on the sidebar.
After clicking a location in the black area, the printer moves, takes a Z-probe measurement and writes the following to the sidebar area:
Zpracování Ložní X: 116.00 Y: 117.00 Z: -0.00
Go to the Detection tab, enable the Custom pattern, enter that text and just replace the numbers with {X}, {Y}, and {Z} like this:
Zpracování Ložní X: {X} Y: {Y} Z: {Z}
Now, clicking a location in the black area should produce a colored circle!