diff --git a/STLs/[a]_idler_arm_short_alt_x1_rev3.STL b/STLs/[a]_idler_arm_short_alt_x1_rev3.STL
new file mode 100644
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diff --git a/STLs/[a]_idler_arm_short_x1_rev3.STL b/STLs/[a]_idler_arm_short_x1_rev3.STL
index 50c0358..481a6c8 100644
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