First, you can update the software and the firmware via the following links:
Please do as follows to adjust the proximity sensor(for A150 as well):
It seems that you need to adjust the proximity sensor and check the platform.
Normally, when the nozzle is close to the surface of the printing, there will be a red dot in the nozzle.
Please do a calibration process, and record the process to check if the proximity sensor works during the process.
1, Please check if you have assembled the platform in right method. Here is an image for you to refer to.
2, 1, Please adjust the height difference, which one between the nozzle and the proximity sensor, to about 1 mm and then tighten the screws of the probe sensor. Connect the machine with the PC via the provided USB cable.
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1, As for the 1 mm height difference, you can use a piece of credit card as the standard.
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2, Power off the machine and assemble the module in place as shown in the following picture. Loosen the screws of the probe sensor and put a credit card below it. Adjust the height difference and make sure the values of it is about 1 mm, and then tighten the screw.
2, Please be noted that you need to record all the information of the software from the booting to the end of calibration process, which is greatly helpful for us to troubleshoot this issue
3, Please be noted that you need to record all the information of the software from the booting to the end of calibration process, which is greatly helpful for us to troubleshoot this issue. Here is an extension tool for recording Loom – Screen Recorder & Screen Capture - Chrome Web Store
4, Open the software Snapmaker Luban and enter the command “M502“ → “M500“ → “G28“ in order and operate each of them. Change the value of time-out to 15s or 30s so that we can record the settings.
image1234×752 33.9 KB5, Do the calibrations process by using the touchscreen.
6, Please do not cut off the connection between the machine and the PC during the calibration process.