Could anyone point me to drawings of the i3 please? I need the distance from the Z motor shaft centre to the centre of the Z vertical rod. I plan to replace the rods with 10mm ones and want to design a set of new ends for the X carriage so need that dimension. I have measured it as best I can and it looks like 18mm centre to centre but I'd rather be sure! Thanks https://reprap.org/forum/read.php?406,708070,708070#msg-708070 Thu, 13 Aug 2026 02:52:20 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?406,708070,710832#msg-710832 https://reprap.org/forum/read.php?406,708070,710832#msg-710832 RGN01 Prusa i3 and variants Fri, 30 Sep 2016 13:40:08 -0400 https://reprap.org/forum/read.php?406,708070,708151#msg-708151 https://reprap.org/forum/read.php?406,708070,708151#msg-708151
and it depends on which on of the millions of variants of I3 that you have

If its a real Prusa I3

from [github.com]

motor position
translate([25+4.3,21,-1])

zrod position
translate([25+4.3,4.2,-1])

The distance you are looking for is on the Y plane the values 21 and 4.2 so they are 16.8 mm apart.]]> Dust Prusa i3 and variants Sun, 18 Sep 2016 04:08:23 -0400 https://reprap.org/forum/read.php?406,708070,708134#msg-708134 https://reprap.org/forum/read.php?406,708070,708134#msg-708134 RGN01 Prusa i3 and variants Sun, 18 Sep 2016 01:59:10 -0400 https://reprap.org/forum/read.php?406,708070,708070#msg-708070 https://reprap.org/forum/read.php?406,708070,708070#msg-708070
I need the distance from the Z motor shaft centre to the centre of the Z vertical rod. I plan to replace the rods with 10mm ones and want to design a set of new ends for the X carriage so need that dimension. I have measured it as best I can and it looks like 18mm centre to centre but I'd rather be sure!

Thanks]]> RGN01 Prusa i3 and variants Sat, 17 Sep 2016 14:29:38 -0400