diff --git a/Hardware_developement/4-HV/Cascade_double/cascade_double-B.Cu.gbr b/Hardware_developement/4-HV/Cascade_double/cascade_double-B.Cu.gbr
new file mode 100644
index 0000000..861f519
--- /dev/null
+++ b/Hardware_developement/4-HV/Cascade_double/cascade_double-B.Cu.gbr
@@ -0,0 +1,497 @@
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new file mode 100644
index 0000000..636db2a
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diff --git a/Hardware_developement/4-HV/Cascade_double/cascade_double.png b/Hardware_developement/4-HV/Cascade_double/cascade_double.png
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