The program does not work correctly if "start from the selected line"

[Anriro]

If you stop the program and then select "start from the selected line" the program works at the wrong speed. What to do with it? TNG
In the old version, it was possible to choose where to get speed, from the program, or from the settings, the new program does not have this option.



the video shows that first the G-code is executed correctly (the speed is set to 1000), after stopping and starting from a certain line, the speed starts jumping

In the old cnc planet program, there were no such problems.

Similar Threads:

• Need Help!- "absolute" position doesn't read correctly
• User profile not respecting the selected "Theme"
• "Radius to end of arc differs from radius to start on Line #"
• "The selected sub-chain does not touch the branch point"
• Where is the "start from line"

[dasilvaboards]

I also experience the same thing with TNG.
Seems like when you "start from line", the program ignores lookahead and goes into exact stop mode - decelerating and accelerating for each line segment.
Any quick settings or script edit solution for this? or wait for the next version update?

[PlanetCNC]

If selected g-code line does not have G code but only X or Y, then moves will be using G00 and not G01 as expected. This results in incorrect behavior like you reported.

[109jb]

This is very controller dependent. Some controllers go into a default modal state when the program is started whether or not it is started at the beginning or middle of the program. This is why you should always have a line at the beginning of a program to define the modal states. Something like:

G90G0G54G17G20G98

If you start from the middle of the program it may be up to you to determine what those modal states should be. They change as the program runs, so what it is at the beginning is probably not what it is at line XXX. Some controllers do this for you and basically interrogate the lines before the one you are starting at so that the modal states can be correctly set. This isn't a "problem", it is just how some controller programs work.

[dasilvaboards]

The old program did work correctly when starting from any line tho