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diff --git a/docs/Instruction/tips/genmitsu_prover_xl_setup.md b/docs/Instruction/tips/genmitsu_prover_xl_setup.md
index b4fdc6f3917069245e815e7b70db767e5bacd8a4..f58e8375639f51f3f21af27a34593b06941362f5 100644
--- a/docs/Instruction/tips/genmitsu_prover_xl_setup.md
+++ b/docs/Instruction/tips/genmitsu_prover_xl_setup.md
@@ -132,29 +132,171 @@ Download: [SVG image.nc](../images/proverXL/SVG image.nc)
### Start milling
- Click **Start Job** to run
-
+
### Milled
{width=400}
{width=400}
+From this result, 30mm design
+
+30x30mm|X |Y
+-- |---|--
+SVG |29.52|29.57
+PNG |29.50|29.55
+Ave |29.51|29.56
+30/Ave |1.016605|1.014885
### Adjust G-code Parameters
-![]()
+
+Ref [](https://bluesky20xx.com/e-work-arduino-grbl-configuration-details/)
+
+- Open Console (right-down)
+
+
+
+Type and Enter
+```
+$$
+```
+
+This is default settings
+```
+client $$
+$0=10 (Step pulse time, μs)
+$1=255 (Step idle delay, ms)
+$2=0 (Step pulse invert, mask)
+$3=0 (Step direction invert, mask)
+$4=0 (Invert step enable pin, boolean)
+$5=0 (Invert limit pins, boolean)
+$6=0 (Invert probe pin, boolean)
+$10=3 (Status report options, mask)
+$11=0.010 (Junction deviation, mm)
+$12=0.002 (Arc tolerance, mm)
+$13=0 (Report in inches, boolean)
+$20=0 (Soft limits enable, boolean)
+$21=1 (Hard limits enable, boolean)
+$22=1 (Homing cycle enable, boolean)
+$23=0 (Homing direction invert, mask)
+$24=25.000 (Homing locate feed rate, mm/min)
+$25=500.000 (Homing search seek rate, mm/min)
+$26=250 (Homing switch debounce delay, ms)
+$27=3.000 (Homing switch pull-off distance, mm)
+$30=10000 (Maximum spindle speed, rpm)
+$31=0 (Minimum spindle speed, rpm)
+$32=0 (Laser-mode enabled as spindle, boolean)
+$100=160.000 (X-axis travel resolution, step/mm)
+$101=160.000 (Y-axis travel resolution, step/mm)
+$102=160.000 (Z-axis travel resolution, step/mm)
+$110=2000.000 (X-axis maximum rate, mm/min)
+$111=2000.000 (Y-axis maximum rate, mm/min)
+$112=2000.000 (Z-axis maximum rate, mm/min)
+$120=300.000 (X-axis acceleration, mm/sec^2)
+$121=300.000 (Y-axis acceleration, mm/sec^2)
+$122=300.000 (Z-axis acceleration, mm/sec^2)
+$130=420.000 (X-axis maximum travel, mm)
+$131=310.000 (Y-axis maximum travel, mm)
+$132=110.000 (Z-axis maximum travel, mm)
+ok
+```
+
+Look at these three parameters
+```
+$100=160.000 (X-axis travel resolution, step/mm)
+$101=160.000 (Y-axis travel resolution, step/mm)
+$102=160.000 (Z-axis travel resolution, step/mm)
+```
+
+#### X and Y axis
+
+I need to change these numbers
+
+30x30mm|X |Y
+-- |---|--
+SVG |29.52|29.57
+PNG |29.50|29.55
+Ave |29.51|29.56
+30/Ave |1.016605|1.014885
+travel resolution</br>160.000*30/Ave</br>[step/mm]|162.657 |162.382
+
+To set numbers, simply type and enter, one by one
+```
+$100=162.657
+
+$101=162.382
+```
+
+To check to be saved
+```
+client $$
+.
+.
+$100=162.657 (X-axis travel resolution, step/mm)
+$101=162.382 (Y-axis travel resolution, step/mm)
+$102=160.000 (Z-axis travel resolution, step/mm)
+.
```
+SVG 30x30mm |X |Y
+-- |--- |--
+Test_1</br>travel resolution</br>[step/mm]|162.657 |162.382
+Result_1</br>[mm] |30.03 |30.05
+Test_2 |162.495 |162.119|
+Result_2 |29.91 |29.99
+Test_3 |162.984 |162.173
+Result_3 |30.00 |30.00-29.99
+
+
+{width=400}
+This is the setting from Test_3
+```
+$100=162.984 (X-axis travel resolution, step/mm)
+$101=162.173 (Y-axis travel resolution, step/mm)
+$102=160.000 (Z-axis travel resolution, step/mm)
+```
+#### Z axis
+{width=300}
+{width=300}
+{width=300}
+Height Gauge |Value|Diff
+-- |--- |--
+Before |7.60 |0
+After 10mm down|6.61 | -9.99
+
+This is the setting from Test (no change)
+```
+$102=160.000 (Z-axis travel resolution, step/mm)
```
+## Surfacing
+### Tool
+{width=200}
+- 3/4" = 19.05mm
+- Change Collet to 3/4"
+Click **Surfacing** (Top-Center)
+
+
+- Dimensions: size of a spoiled board
+- Router Bit Diameter 19 mm
+- Start Position
+ - left-down
+
+- **Genetate G-code** -> **Run on Main Visualizer**
+- Click **Start job** to start surfacing
+
+!!! Attention
+ This is very **DUSTY** process!!
+----
## Adjust MODS' g-code for this machine
[mods](https://mods.cba.mit.edu/)