Autodesk Inventor Autodesk Inventor EdgeCAM EdgeCAM CNC Motion - Part 3 CNC Motion - Part 3 Prolight CNC Mill Prolight CNC Mill CNC Box

CNC Motion LID INTERIOR

LOAD MILL – SET PRZ / Origin T5 – ½” End Mill Spacer = ” PRZ – Top Surface – Front – Left CNC Motion – LID INTERIOR

LOAD MILL – SET PRZ Find PRZ Verify Program Run Program CNC Motion – LID INTERIOR

Setup Verify Select Stock & Vise – Length = 3.0 – Width = 3.0 – Height = 1 – Spacer = CNC Motion – LID INTERIOR

Virtual Verify CNC Motion – LID INTERIOR

Milling Operations Profiling – Boss – 1 st Profile Offset 0.5” – 2 nd Profile Offset 0.25” – 3 rd Profile Offset 0.0 Roughing - Pocket CNC Motion – LID INTERIOR

CNC Motion Surface – LID EXTERIOR

Setup for Surfacing CNC Motion – SETUP for SURFACE After milling we are left with a Boss on each piece as well as material left in the corners from the profiling operation. The need the lid to be temporally attached to the base to be held and located in the mill for the surface operation. BASE LID INTERIOR Currently the material left from the profiling operation is interfering with the lids ability to be placed and attached onto the base. Some of the material will need to be roughly removed. Warning: If the LID and BASE fit loosely together, this process is not recommended.

Setup CNC Motion – SETUP for SURFACE The material in the corners does not need to be completely removed. It will be beneficial in the final process for some (about 50%) of the boss remain on one side A band saw can be used to quickly remove about half of each column. This will provide enough Clarence for the LID INTERIOR to fit onto the BASE

Setup CNC Motion – SETUP for SURFACE Once the BASE and LID INTERIOR are fitted together, we can use electrical tape to snuggly wrap and hold the BASE and LID INTERIOR temporarily together. Stretch the tape tightly around the seam of the two parts.

Setup CNC Motion – SETUP for SURFACE Do not just cover the seam. Wrap the part 5 or 6 times and cover an area approximately 1” to 1.25” wide. Ensure the two parts are firmly held together by gently twisting the parts. Warning: If the parts seem to still contain a lose tolerance, it is not recommended to proceeded with a surface process using this strategy.

LOAD MILL – SET PRZ / Origin T5 – ½” End Mill T3 – ¼” Ball End Spacer = None PRZ – Top Surface – Front – Right CNC Motion – SETUP for SURFACE

LOAD MILL – SET PRZ / Origin Home Machine Find PRZ Verify Program Run Program CNC Motion – SETUP for SURFACE

Setup Verify Select Stock & Vise – Length = 3.0 – Width = 3.0 – Height = 1 – Spacer = 1.25 – X Offset = 6 Select Verify Settings from the Setup drop- down – Change X Axis to CNC Motion – SETUP for SURFACE

Virtual Verify CNC Motion – SETUP for SURFACE

Remove Boss Once the PRZ / Origin has been located and saved, the top boss will be removed CNC Motion – SETUP for SURFACE Once the boss has been removed, it will be extremely difficult to again find the PRZ for the surface operation of this part.

Remove Boss - Facing A facing program may be written in Edgecam to remove this ¼” Boss In this example, we are going to manually face this part. Avoid plunging onto the part as this pressure might cause the part to shift. CNC Motion – SETUP for SURFACE

Remove Boss - Facing Use the Jog Control Panel to manually locate the facing tool (example ½” end mill) in front of the part. CNC Motion – SETUP for SURFACE

Remove Boss - Facing Manually turn the Spindle on Select Go To Position from the Setup drop down – Set the Z axis to – Feed 10 in/min – Select go CNC Motion – SETUP for SURFACE

Remove Boss - Facing Manually jog the tool across the top of the part to the other side. Move the part over approx. 50% of the bit diameter Return the tool across the part Repeat across the part CNC Motion – SETUP for SURFACE

Remove Boss – Facing Again open the Go to Position command – Set the Z axis to Repeat the previous steps to finish the facing process. Open the Set Position command – Set the current Z axis to 0 CNC Motion – SETUP for SURFACE

Milling Operations Roughing – Remove Bulk Surface Operation – Parallel Lace 45° – 60% Step Over Surface Operation – Parallel Lace -45° – 60% Step Over CNC Motion – Run SURFACE

Remove Part Remove the part from the vise Remove the tape CNC Motion – Finish Part

Remove Bottom Boss Band saw – Set the distance from the rip fence to the blade Offset = (just over ½”) – Carefully remove the boss from the bottom of the BASE Band saw– Finish Part For safety, it is recommended that this operation be performed by the instructor.

Remove Bottom Boss – If necessary, use a fine grit sandpaper to remove any band saw marks off the bottom of the box Finishing– Finish Part

Final Product