diff --git a/site_ansto/instrument/rsd/extraconfig.tcl b/site_ansto/instrument/rsd/extraconfig.tcl
index e69de29b..cbc98cdf 100644
--- a/site_ansto/instrument/rsd/extraconfig.tcl
+++ b/site_ansto/instrument/rsd/extraconfig.tcl
@@ -0,0 +1,75 @@
+sz fixed 1
+sz send GRB=0
+
+Motor sz1 $motor_driver_type [params \
+  asyncqueue mc2\
+  axis A\
+  units mm\
+  hardlowerlim 0\
+  hardupperlim 750\
+  maxSpeed 5\
+  maxAccel 1\
+  maxDecel 1\
+  stepsPerX [expr -25000.0*(24.0/25.0)*50/11.0]\
+  absenc 1\
+  absenchome $sz_home\
+  cntsPerX -[expr (1<<15)/260.09]]
+setHomeandRange -motor sz1 -home 0 -lowrange 0 -uprange 750
+sz1 speed 5
+sz1 part sample
+sz1 backlash_offset -1
+sz1 blockage_ratio 5
+sz1 precision 0.025
+sz1 creep_offset 0.1
+sz1 creep_precision 0.01
+sz1 long_name translate_z1
+
+Motor sz2 $motor_driver_type [params \
+  asyncqueue mc2\
+  axis B\
+  encoderAxis A\
+  units mm\
+  hardlowerlim 0\
+  hardupperlim 750\
+  maxSpeed 5\
+  maxAccel 1\
+  maxDecel 1\
+  stepsPerX [expr -25000.0*(24.0/25.0)*50/11.0]\
+  absenc 1\
+  absenchome $sz_home\
+  cntsPerX -[expr (1<<15)/260.09]]
+setHomeandRange -motor sz2 -home 0 -lowrange 0 -uprange 750
+sz2 speed 5
+sz2 part sample
+sz2 backlash_offset -1
+sz2 blockage_ratio 5
+sz2 precision 0.025
+sz2 creep_offset 0.1
+sz2 creep_precision 0.01
+sz2 long_name translate_z2
+
+fileeval vmotors.tcl
+
+proc home_z {} {
+  sz send GRB=0
+  sz1 send sh`
+  sz2 send sh`
+  sz1 send jg`=-25000
+  sz2 send jg`=-25000
+  sz1 send bg`
+  sz2 send bg`
+  set running 1
+  while { $running > 0 } {
+    set running 0
+    set line [sz1 send MG _bg`]
+    set line [string trimright $line ":"]
+    set sw [expr int([string trimleft $line " 0"])]
+    if { $sw > 0 } { set running 1 }
+    set line [sz2 send MG _bg`]
+    set line [string trimright $line ":"]
+    set sw [expr int([string trimleft $line " 0"])]
+    if { $sw > 0 } { set running 1 }
+  }
+  sz1 send mo`
+  sz2 send mo`
+}