Graber i3: Z-height axis tuning On the Ultimaker it very easy:

Graber i3: Z-height axis tuning

On the Ultimaker it very easy: I turn the lead screw by hand a few clicks while the machine is printing the skirt. That’s it :slight_smile:

But the Graber has two spindles for the z-axis. That means no chance for a manual height override. :frowning:

How do you do that on printers like the Graber, Prusa or Mendel?

I use baby stepping via LCD menu.

Just turn both leadscrews at the same time

@Jesper_Lindeberg While it is printing the skirt?

Yes and first layer :wink:

Tell me more about this function. On my LCD there no option like that. :frowning:

Found a video about it https://www.youtube.com/watch?v=LE15jh_Nr_A maybe your marlin firmware is to old. You need to set it up in Configuration_adv.h and compile marlin again.

Set your z-endstop?

@enhydra you have to enable it in the firmware and re flash.

I had my friend lesser me out parts fir this exact printer how do you like it? Should be here in a few days. I’m hoping it’s better than my I2.

Btw what extruder body are u using do you have the link to the stls?

@Vaclav_Hula Hm, do you think that’ll work?

@John_Abella The z-endstop are nicely set. But when the temperture varies, the frame “suffers” from thermal expansion.

@Jeremy_G_WeisTek_Eng I’m quite happy with the Graber i3. :slight_smile: I’ve still got some extruder issues. Prusa i3 compact extruder by misan - Thingiverse

hmmm wont it be dangerous if one side is too high and allows the nozzle to ram into the platform in the midst of checking? may i suggest use a cheap dial? the type with a springy tip, so you have a lot of safe height?

@enhydra thanks for the link, frame just came in today. Got half of it put together already :). Def looks better than my I2. (Still love my I2 though it’s more mechanical looking)