diff --git a/macros/test_speed.cfg b/macros/test_speed.cfg
index d39f6e9..19e9c9c 100644
--- a/macros/test_speed.cfg
+++ b/macros/test_speed.cfg
@@ -178,6 +178,37 @@ gcode:
 
 #--------------------------------------------------------------------
 
+[gcode_macro SPEED_LOOP_MINI]
+gcode:
+    MAYBE_HOME
+    {% set vel = (300,400) %}          # set velocity values to be tested (mm/s)
+    {% set accel = (5000,5000) %}    # set accel values to be tested (mm/s^2)
+    {% set min = 40 %}                     # set the square lower left point
+    {% set max = 260 %}                    # set the square upper right corner
+    G1 X{min} Y{min} F5000
+    {% for V in vel %}
+        {% set machineVel = V*60 %}
+        {% for A in accel %}
+            M118 velocity:{V}mm/s, accel:{A}mm/s^2
+            SET_VELOCITY_LIMIT VELOCITY={V}
+            SET_VELOCITY_LIMIT ACCEL={A}
+            SET_VELOCITY_LIMIT ACCEL_TO_DECEL={A}
+            G1 X{max} Y{min} F{machineVel}
+            G1 X{max} Y{max}
+            G1 X{min} Y{min}
+            G1 X{min} Y{max}
+            G1 X{max} Y{min}
+            G1 X{max} Y{min}
+            G1 X{max} Y{max}
+            G1 X{min} Y{max}
+            G1 X{min} Y{min}
+            G4 P1000
+        {% endfor %}
+    {% endfor %}
+    RESETSPEEDS
+
+#--------------------------------------------------------------------
+
 [gcode_macro RESETSPEEDS]
 gcode:
 	SET_VELOCITY_LIMIT VELOCITY={printer.configfile.settings.printer.max_velocity} 
diff --git a/printer.cfg b/printer.cfg
index 42189db..bc2fe8d 100644
--- a/printer.cfg
+++ b/printer.cfg
@@ -322,8 +322,8 @@ spi_software_miso_pin: toolboard: PB2
 [resonance_tester]
 accel_chip: adxl345
 probe_points: 150,150,20
-# min_freq: 40
-# max_freq: 90
+min_freq: 20
+max_freq: 100
 # accel_per_hz: 75
 # hz_per_sec: 1