Optimizing the Z axis setting
I am a new to 3D printing just one week. However I cannot seem to get a consistent first layer. I have read the forum here and the hyper bed leveling conversation is a bit over my head. I did like the thought of printing out "test coupons" to see the difference in the Z axis offset. I have done that but I don't think that the printer is consistent in this regards. I also printed out large round shapes that came from the Castle that was loaded on the SD card that came with the printer. I have changed none of the profile settings that came with either the square calibration coupon or the Prusa Castle. Is this a case of requiring to do the hyperbed leveling or something that I am doing? Please note that I forgot to take a picture of the 0.03mm round before I took it off the bed. In all cases you can see that the print consistency goes bad as I go left and toward the front. The printer bed is level with the accuracy of 150 mm torpedo level. for all prints I have used acetone to wipe the bed before printing since I don't have access right now to 90+% alcohol. Any advise would be great. About half of the prints work the other half come loose and float around the bed.
Re: Optimizing the Z axis setting
The printer bed is level with the accuracy of 150 mm torpedo level.
Remember bed levelling is relative to the print nozzle/extruder, NOT "absolute level". Unless you made a phrasing mistake, I suspect therein lies your problem.
Bed levelling is a misnomer, it really should be called tramming.
Re: Optimizing the Z axis setting
It will help your print surface to give better results and last much longer if you can make the effort to obtain 90% plus IPA.
vintagepc is right - the 'level' indicated by a torpedo/spirit level does not help you with setting the bed.
The hyperfine thread is still the best way to work bed level on the MK2/S but you need to find and load the hyperfine modified 3.1.0 firmware to get the 8 point adjustment in the LCD menu. With that you have the choice of the eight squares to measure thickness with a micrometer OR running the no_print_calibration g-code and using feeler gauges to measure the gap between nozzle and bed at each point.
Bill
Tagaytay City, Philippines
Founder member of Philippines Prusa Printer Owners FB Group
Sponsor Pillars of God Academy in Bacoor
Re: Optimizing the Z axis setting
Thank you both. I will do so.