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#420 Regression in G33.1 tapping

2.7
closed-fixed
nobody
None
5
2015-03-04
2015-03-03
Chris Radek
No

Some tapping moves get stuck part-way through and never complete.

In 2.7, run sim/axis/lathe, home all and go to MDI, issue

S300 M3
G33.1 X1 Z1 K0.05

Expected behavior: synchronized motion to X1 Z1, spindle reversal, synchronized motion back past X0 Z0, spindle goes forward again, move ends at X0 Z0. This is what happens in 2.6.5.

Actual behavior in v2.7.0-pre4-40-g9db0cad: synchronized motion to X.707 Z.707, motion stops and spindle remains running forward, state becomes weird and further MDI commands don't work right.

Discussion

  • Robert Ellenberg

    Robert Ellenberg - 2015-03-04

    Good catch! The function that computed the segment target was returning int instead of double, so it would stop short.

     

  • Sebastian Kuzminsky

    Sebastian Kuzminsky - 2015-03-04
    • status: open --> closed-fixed
     

  • Sebastian Kuzminsky

    Sebastian Kuzminsky - 2015-03-04

    This was fixed by Rob's PR on github. The fix is in v2.7.0-pre4-44-gf7f7f82.

     
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