G0 movement gouges part
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22 Jan 2021 17:46 #196251
by tommylight
Replied by tommylight on topic G0 movement gouges part
G64 P0.002 Q0.002 helps a lot so in general changing the values is working.
When the tolerance is set at 0.1mm with G64 P0.1 Q0.1 it stops at 7.672mm when retracting and at -9.84mm when plunging ?
G61 on the other hand stops exactly at 10 and -10mm.
When the tolerance is set at 0.1mm with G64 P0.1 Q0.1 it stops at 7.672mm when retracting and at -9.84mm when plunging ?
G61 on the other hand stops exactly at 10 and -10mm.
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23 Jan 2021 02:38 #196305
by cakeslob
Replied by cakeslob on topic G0 movement gouges part
changing my setting to G64 P0.002 Q0.002 has fixed my unrelated problem with the velocity pins all displaying different values
forum.linuxcnc.org/38-general-linuxcnc-q...blem-with-feed-rates
forum.linuxcnc.org/38-general-linuxcnc-q...blem-with-feed-rates
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24 Jan 2021 23:49 - 24 Jan 2021 23:49 #196489
by andypugh
This sounded odd to me, so I emailed Rob Ellenberg.
The blend move is pre-computed, so in single-step mode the Z axis will, indeed, stop short, and will then do the blend move and the XY moves on the next program line.
Thinking about it, this makes rather more sense than completing the Z move _and_ making a small XY move on a program line that contains no XY motion.
You might expect single-step to revert to absolute-stop mode, but this isn't the case.
Replied by andypugh on topic G0 movement gouges part
The cut depth is set at 2mm but it stops short and waits till the next G1 move, and when going up that is even more off
This sounded odd to me, so I emailed Rob Ellenberg.
The blend move is pre-computed, so in single-step mode the Z axis will, indeed, stop short, and will then do the blend move and the XY moves on the next program line.
Thinking about it, this makes rather more sense than completing the Z move _and_ making a small XY move on a program line that contains no XY motion.
You might expect single-step to revert to absolute-stop mode, but this isn't the case.
Last edit: 24 Jan 2021 23:49 by andypugh.
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