diff --git a/construction/v4_3dprinting_stl/BaseBlock.stl b/construction/v4_3dprinting_stl/machine/BaseBlock.stl
similarity index 100%
rename from construction/v4_3dprinting_stl/BaseBlock.stl
rename to construction/v4_3dprinting_stl/machine/BaseBlock.stl
diff --git a/construction/v4_3dprinting_stl/EndEffector.stl b/construction/v4_3dprinting_stl/machine/EndEffector.stl
similarity index 100%
rename from construction/v4_3dprinting_stl/EndEffector.stl
rename to construction/v4_3dprinting_stl/machine/EndEffector.stl
diff --git a/construction/v4_3dprinting_stl/MotorHorn.stl b/construction/v4_3dprinting_stl/machine/MotorHorn.stl
similarity index 100%
rename from construction/v4_3dprinting_stl/MotorHorn.stl
rename to construction/v4_3dprinting_stl/machine/MotorHorn.stl
diff --git a/construction/v4_3dprinting_stl/MotorMount.stl b/construction/v4_3dprinting_stl/machine/MotorMount.stl
similarity index 100%
rename from construction/v4_3dprinting_stl/MotorMount.stl
rename to construction/v4_3dprinting_stl/machine/MotorMount.stl
diff --git a/construction/v4_3dprinting_stl/RubberBandCollet.stl b/construction/v4_3dprinting_stl/machine/RubberBandCollet.stl
similarity index 100%
rename from construction/v4_3dprinting_stl/RubberBandCollet.stl
rename to construction/v4_3dprinting_stl/machine/RubberBandCollet.stl
diff --git a/construction/v4_3dprinting_stl/tools/rod_length_setting_press/CaliperClamp.stl b/construction/v4_3dprinting_stl/tools/rod_length_setting_press/CaliperClamp.stl
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diff --git a/construction/v4_3dprinting_stl/tools/rod_length_setting_press/RodCollet.stl b/construction/v4_3dprinting_stl/tools/rod_length_setting_press/RodCollet.stl
new file mode 100644
index 0000000..9513b59
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diff --git a/construction/v4_3dprinting_stl/tools/rod_length_setting_press/RodGrindingJigA.stl b/construction/v4_3dprinting_stl/tools/rod_length_setting_press/RodGrindingJigA.stl
new file mode 100644
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diff --git a/construction/v4_3dprinting_stl/tools/rod_length_setting_press/RodGrindingJigB.stl b/construction/v4_3dprinting_stl/tools/rod_length_setting_press/RodGrindingJigB.stl
new file mode 100644
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diff --git a/construction/v4_3dprinting_stl/tools/rod_length_setting_press/RodGuide.stl b/construction/v4_3dprinting_stl/tools/rod_length_setting_press/RodGuide.stl
new file mode 100644
index 0000000..50ab4bc
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diff --git a/construction/v4_3dprinting_stl/tools/rod_sharpener/BladeCarrier.stl b/construction/v4_3dprinting_stl/tools/rod_sharpener/BladeCarrier.stl
new file mode 100644
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diff --git a/construction/v4_3dprinting_stl/tools/rod_sharpener/RodGuide.stl b/construction/v4_3dprinting_stl/tools/rod_sharpener/RodGuide.stl
new file mode 100644
index 0000000..0acaf6c
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