Drill_type eq tapping
- Michael_k
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08 Jul 2021 08:35 #214012
by Michael_k
Drill_type eq tapping was created by Michael_k
I use a FANUC PP and did some changes to work on Linux CNC based system.
If a want to drill a thread, the Code M29 is used. After research M29 is for syncing spindle and servo motor.
This will give me an error message, so M29 can not be used on a Linuc CNC System?
I also added the GPP-Code.
Is there a different way to drill a thread in Linux CNC?
Thank for your help.
If a want to drill a thread, the Code M29 is used. After research M29 is for syncing spindle and servo motor.
This will give me an error message, so M29 can not be used on a Linuc CNC System?
I also added the GPP-Code.
Is there a different way to drill a thread in Linux CNC?
Thank for your help.
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- Aciera
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08 Jul 2021 09:30 #214015
by Aciera
Replied by Aciera on topic Drill_type eq tapping
The available g-codes in linuxcnc:
linuxcnc.org/docs/2.8/html/gcode/g-code.html#gcode:g43
The available m-codes :
linuxcnc.org/docs/html/gcode/m-code.html#mcode:m68
Maybe have a look at G33 and G33.1
linuxcnc.org/docs/2.8/html/gcode/g-code.html#gcode:g43
The available m-codes :
linuxcnc.org/docs/html/gcode/m-code.html#mcode:m68
Maybe have a look at G33 and G33.1
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- Michael_k
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20 Jul 2021 12:36 #215409
by Michael_k
Replied by Michael_k on topic Drill_type eq tapping
Thanks for your help.
When I‘m coding
G33.1 Z-5 K0.25
nothing happens.
The spindle is still rotating, but there is no movement in z-direction.
I’m using a ISEL1200-is Frequency Converter. Could there be some problem with the hardware, like its not able to sync?
Thank you for your help
When I‘m coding
G33.1 Z-5 K0.25
nothing happens.
The spindle is still rotating, but there is no movement in z-direction.
I’m using a ISEL1200-is Frequency Converter. Could there be some problem with the hardware, like its not able to sync?
Thank you for your help
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- 0x2102
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24 Jul 2021 05:47 - 24 Jul 2021 06:06 #215741
by 0x2102
Replied by 0x2102 on topic Drill_type eq tapping
G33.1 (rigid tapping (spindle synchronized motion with return) requires an encoder on the spindle with feedback to LinuxCNC to sync motion.
Your ISEL1200 spindle (1200W / 0.5Nm@22K) doesn't have an encoder and the torque is way to low for rigid tapping.
Not sure which CAD/CAM system you are using, but Fusion 360 e.g. has a "2D Thread" operation to mill a thread.
Your ISEL1200 spindle (1200W / 0.5Nm@22K) doesn't have an encoder and the torque is way to low for rigid tapping.
Not sure which CAD/CAM system you are using, but Fusion 360 e.g. has a "2D Thread" operation to mill a thread.
Last edit: 24 Jul 2021 06:06 by 0x2102.
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- andypugh
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31 Jul 2021 21:12 - 31 Jul 2021 21:13 #216498
by andypugh
Replied by andypugh on topic Drill_type eq tapping
I have just had a report from another LinuxCNC user that the surprisingly cheap thread mills at
APT
are surprisingly good.
He has run 88 M3 holes with a £17 cutter, where the previous cutter he bought was £120.
Thread milling is a one-line command in LinuxCNC G-code. An M6 x 1 thread 10mm deep cut with a 4mm dia cutter might be:
G0 X2
G0 Z1
G3 I-2 Z-11 P11
G1 X0
G0 Z1
By not having any start or finish points the line is interpreted as "P" full rotations.
He has run 88 M3 holes with a £17 cutter, where the previous cutter he bought was £120.
Thread milling is a one-line command in LinuxCNC G-code. An M6 x 1 thread 10mm deep cut with a 4mm dia cutter might be:
G0 X2
G0 Z1
G3 I-2 Z-11 P11
G1 X0
G0 Z1
By not having any start or finish points the line is interpreted as "P" full rotations.
Last edit: 31 Jul 2021 21:13 by andypugh.
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