I'm working on blowmold, specifically cutting the feature that makes the (SP400) threads for the lid in the molded part.
The block is mounted to our 4th axis so that we can generate clearance for the tool (which is a .02" ball mill).
I'm using roughing sequences with the rotary positioned at +45°, +22.5°, 0°, -22.5°, and -45°. Two of the sequences, the ones at +22.5° and -22.5° are not doing what they should; they cut much deeper than they are supposed to. The attached picture shows a correct sequence (at +45°) and one incorrect sequence (at +22.5°).
MFG_AUTO_REF_PRT_AS_CHK_SURF and CHK_PART_SURFS_PROFPOCK are both yes, but I don't think they apply to roughing sequences.
I've tried changing the angle of the rotary (i.e. 20°/22°/23°/25° instead of 22.5°), but the result was the same.
I thought that my mill window might be a problem, because two edges of the window were made from the edges of the thread (and those edges were splines), so I changed the window to a simple rectangle, but, again, the result was the same.
There is a similar groove feature, just to the left of the thread, that works just fine.
The block has been in the machine for the last 4 days, waiting for this one remaining feature...any ideas would be greatly appreciated.
The block is mounted to our 4th axis so that we can generate clearance for the tool (which is a .02" ball mill).
I'm using roughing sequences with the rotary positioned at +45°, +22.5°, 0°, -22.5°, and -45°. Two of the sequences, the ones at +22.5° and -22.5° are not doing what they should; they cut much deeper than they are supposed to. The attached picture shows a correct sequence (at +45°) and one incorrect sequence (at +22.5°).
MFG_AUTO_REF_PRT_AS_CHK_SURF and CHK_PART_SURFS_PROFPOCK are both yes, but I don't think they apply to roughing sequences.
I've tried changing the angle of the rotary (i.e. 20°/22°/23°/25° instead of 22.5°), but the result was the same.
I thought that my mill window might be a problem, because two edges of the window were made from the edges of the thread (and those edges were splines), so I changed the window to a simple rectangle, but, again, the result was the same.
There is a similar groove feature, just to the left of the thread, that works just fine.
The block has been in the machine for the last 4 days, waiting for this one remaining feature...any ideas would be greatly appreciated.