Bar Break Chamfers for Stock in Turn Toolpaths You can add bar break moves to Turn toolpaths generated for ODs to prevent burrs that can damage guide bushings. During the Turn toolpath machining process, burrs (unwanted sharp edges), can form near the tool inserts when the edges of the cylindrical stock are machined. Burrs can cause damage when the stock material slides through guide bushings. To eliminate burr formation, you can specify an option for bar break moves for these types of Turn toolpaths: Turn Rough Turn Finish Groove Rough (OD features only) Groove Finish (OD features only) Face Rough Face Finish Adding bar break moves to the cut passes ensures the deburring of stock edges. It also prevents damage to guide bushings when the stock moves in and out of the guide bushing during the machining process. SOLIDWORKS CAM adds bar break moves to the passes that intersect the maximum stock diameter. It appends these moves to the regular cut moves as required. Turn Rough toolpath with bar break chamfers on first and final cut passes Face Rough toolpath with bar break chamfers for each cut pass For Groove Rough and Finish toolpaths, SOLIDWORKS CAM adds the bar break moves based on the groove style. The app accounts for the cutting pattern of the groove when adding the bar break moves. There can be either one or multiple bar break moves depending on the groove style. Groove Rough toolpath with zig groove style Groove Rough toolpath with zigzag groove style The following Groove Rough toolpaths have normal groove styles and no groove peck types: Order: S123 Bar break move added before final cut pass Order: S321 Bar break move added before first cut pass Order: S213 Bar break moves added before first and final cut passes Order: S231 Bar break move added before final cut pass Contents Creating Bar Break Chamfers Parent topicSOLIDWORKS CAM
