Problem with Peck Drilling

[danspencer101]

All good apart from the peck drilling cycle. The post generates a G74 which is technically correct but the Novaturn seems to be plunging all the way in and ignoring the chip-breaking pecks.

https://www.youtube.com/watch?v=m1TQN1tr-HA

We got around it by removing this from the post processor:

case "chip-breaking": writeComment("Lathe Drilling Cycle: chip-breaking - Untested on Novamill"); writeBlock( gFormat.format(74), "R" + rFormat.format(cycle.chipBreakDistance)); writeBlock( gFormat.format(74), zOutput.format(z), "Q" + spatialFormat.format(cycle.incrementalDepth * 1000), feedOutput.format(cycle.feedrate)); break;

This forces the post to expand the cycle into sequential moves.

Full cycle with expanded peck drill:
https://youtu.be/1j7ME2bgn7Y