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May 2016
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May 2016
May 2016
Alexandru_Nechi
May '16

Greetings! I have a sunhokey prusa i3 and can’t seem to calibrate it. Can’t even print a damn 1cm cube properly and I ran out of patience.

I wish to pay for the service of having my printer adjusted, calibrated in both software and hardware. I have tried, and failed. Its a standard Sunhokey prusa i3, with a mks gen-2z v1.2 a sensor wired to the zstop LJ18A3-8-Z/BX

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    May '16

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    May '16
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kissfan4
May '16

not in Germany, but what are the problems you are having, i have a prusa i3 bought from a Chinese company that required a lot of tweaking in order to get quality prints. Can you try to explain whats wrong? Pictures?

Alexandru_Nechi
May '16

I just can’t get it to autolevel properly. The nozzle is too close to the glass and I can’t figure out how to make it go upwards in 0.1 increments

Xasin
May '16

If you want to just level the bed I recommend doing that manually, if there are no other ways.
I’ve got a *generic brand name* DIY Prusa i3 too, and I’ve never had the luxury of Auto-Bed-Leveling, but the thing still works fine.

All you need to do is move the head up and down a little when the printer is off (by turning the Z-Axis-Motors synchronously), and then, by looking or a piece of paper, try to adjust the nozzle height as far down as possible without having it touch the bed.

If that isn’t the problem, and instead the Axes are moving in the wrong dimensions, I recommend RepRap Calculator - Original Prusa 3D Printers to figure out some good Steps/MM values for the different pulleys or threaded rods the printer is using.

Honestly though, if you google around a bit and spend some time with that stuff it really isn’t all that hard to calibrate the printer properly ^^

-- Sidenote –

If you want to simply move the nozzle up or down a bit, you can Pronterface or similar control software to send raw G-Code commands.

Then use the following to move the nozzle up or down:

G91 ; Relative Movements

G1 Z1 ; For upwards movement of one millimeter

G1 Z-1; For downwards movement

And don’t forget G90 again for absolute positioning afterwards!!

You can then, once finished positioning your nozzle, set the current printer position with
G92 Z0