Z length has to be a discrete number of mm ?? Hi guys, I am having some trouble getting the correct z length my Mendel90 (it has a z max limit switch, and no min). It seems that the printer will only use whole mm lengths for the z axis, for example I will put in 5.5mm z length in Sprinter, home the printer then take it down to z=0mm and it will only move down 5mm, when I raise it up to z max and send m114 it states the z height as 5mm although in Sprinter it is 5.5mm. I can move 0.1mm increments in pronterface accurately but for some reason it will only use whole mm for the z length in Sprinter (I doesn't even round properly, so does Sprinter just truncate the length to the nearest mm ?) Thanks so much, any help would be great Jeremy https://reprap.org/forum/read.php?262,371279,371279#msg-371279 Wed, 15 Jul 2026 07:15:25 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?262,371279,374049#msg-374049 Re: Z length has to be a discrete number of mm ?? https://reprap.org/forum/read.php?262,371279,374049#msg-374049 nophead Printing Tue, 24 Jun 2014 08:12:08 -0400 https://reprap.org/forum/read.php?262,371279,374028#msg-374028 Re: Z length has to be a discrete number of mm ?? https://reprap.org/forum/read.php?262,371279,374028#msg-374028

Yeah I am using sprinter (I cant quite remember why but I had trouble with Marlin when I first set up the printer) .... will the calibration numbers be the same (can I just copy them from sprinter to marlin ) ? thanks heaps]]> Jerms.a320 Printing Tue, 24 Jun 2014 07:47:09 -0400 https://reprap.org/forum/read.php?262,371279,371368#msg-371368 Re: Z length has to be a discrete number of mm ?? https://reprap.org/forum/read.php?262,371279,371368#msg-371368 github.com]]]> nophead Printing Wed, 18 Jun 2014 04:50:48 -0400 https://reprap.org/forum/read.php?262,371279,371279#msg-371279 Z length has to be a discrete number of mm ?? https://reprap.org/forum/read.php?262,371279,371279#msg-371279
I am having some trouble getting the correct z length my Mendel90 (it has a z max limit switch, and no min). It seems that the printer will only use whole mm lengths for the z axis, for example I will put in 5.5mm z length in Sprinter, home the printer then take it down to z=0mm and it will only move down 5mm, when I raise it up to z max and send m114 it states the z height as 5mm although in Sprinter it is 5.5mm. I can move 0.1mm increments in pronterface accurately but for some reason it will only use whole mm for the z length in Sprinter (I doesn't even round properly, so does Sprinter just truncate the length to the nearest mm ?)

Thanks so much, any help would be great

Jeremy]]> Jerms.a320 Printing Tue, 17 Jun 2014 21:13:16 -0400