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Another plasma component...
- phillc54
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7 years 7 months ago #129868
by phillc54
Currently the component calculates the heights before each cut begins.
All the widgets are 'outputs' only at the moment, are cut height and THC enable the only parameters would you need to change externally?
Cheers, Phill.
Replied by phillc54 on topic Another plasma component...
Do you wish to change these during a cut or before each cut begins.islander261 wrote:
I really need to control the cutting height and THC enable from my Gcode files
Currently the component calculates the heights before each cut begins.
All the widgets are 'outputs' only at the moment, are cut height and THC enable the only parameters would you need to change externally?
Cheers, Phill.
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7 years 7 months ago - 7 years 7 months ago #129873
by phillc54
Replied by phillc54 on topic Another plasma component...
John,
I am not 100% sure if this is what you want.
This adds two hal input pins:
plasmac_panel.thc-enable-ext (bit)
plasmac_panel.cut-height-ext (float)
Changes to these pins will be reflected in the corresponding panel widgets and the plasmac component.
Changes to the panel widgets will also be reflected in these pins.
Note that changes to thc enable are valid at any time whereas changes to cut height are valid only from the beginning of the next cut.
You could apply these manually or via git as follows:
copy external_hal_pins.txt to the root of your git repo
cd to the root of your git repo
git apply --stat external_hal_pins.txt
git apply --check external_hal_pins.txt
if no errors:
git apply external_hal_pins.txt
Cheers, Phill.
I am not 100% sure if this is what you want.
This adds two hal input pins:
plasmac_panel.thc-enable-ext (bit)
plasmac_panel.cut-height-ext (float)
Changes to these pins will be reflected in the corresponding panel widgets and the plasmac component.
Changes to the panel widgets will also be reflected in these pins.
Note that changes to thc enable are valid at any time whereas changes to cut height are valid only from the beginning of the next cut.
You could apply these manually or via git as follows:
copy external_hal_pins.txt to the root of your git repo
cd to the root of your git repo
git apply --stat external_hal_pins.txt
git apply --check external_hal_pins.txt
if no errors:
git apply external_hal_pins.txt
Warning: Spoiler!
Code:
diff --git a/configs/sim/gmoccapy/plasmac/plasmac_panel.py b/configs/sim/gmoccapy/plasmac/plasmac_panel.py
index d35b8de43..85dd9f705 100644
--- a/configs/sim/gmoccapy/plasmac/plasmac_panel.py
+++ b/configs/sim/gmoccapy/plasmac/plasmac_panel.py
@@ -263,6 +263,18 @@ class HandlerClass:
mode = hal.get_value('plasmac.mode')
units = hal.get_value('halui.machine.units-per-mm')
maxPidP = self.thcFeedRate / units * 0.1
+ if self.builder.get_object('thcEnable').get_active() != self .thcEnable:
+ hal.set_p('plasmac_panel.thc-enable-ext','%d' % (self.builder.get_object('thcEnable').get_active()))
+ self.thcEnable = self.builder.get_object('thcEnable').get_active()
+ elif hal.get_value('plasmac_panel.thc-enable-ext') != self .thcEnable:
+ self.builder.get_object('thcEnable').set_active(hal.get_value('plasmac_panel.thc-enable-ext'))
+ self.thcEnable = hal.get_value('plasmac_panel.thc-enable-ext')
+ if self.builder.get_object('cutHeight').get_value() != self.cutHeight:
+ hal.set_p('plasmac_panel.cut-height-ext','%f' % (self.builder.get_object('cutHeight').get_value()))
+ self.cutHeight = self.builder.get_object('cutHeight').get_value()
+ elif hal.get_value('plasmac_panel.cut-height-ext') != self.cutHeight:
+ self.builder.get_object('cutHeight').set_value(hal.get_value('plasmac_panel.cut-height-ext'))
+ self.cutHeight = hal.get_value('plasmac_panel.cut-height-ext')
if mode != self.oldMode:
if mode == 0:
self.builder.get_object('arcOkHigh').show()
@@ -391,6 +403,10 @@ class HandlerClass:
else:
self.save_settings()
print '*** creating new plasmac configuration file,', self.configFile
+ hal.set_p('plasmac_panel.thc-enable-ext','%d' % (self.builder.get_object('thcEnable').get_active()))
+ self .thcEnable = self.builder.get_object('thcEnable').get_active()
+ hal.set_p('plasmac_panel.cut-height-ext','%f' % (self.builder.get_object('cutHeight').get_value()))
+ self.cutHeight = self.builder.get_object('cutHeight').get_value()
def save_settings(self):
try:
@@ -415,6 +431,8 @@ class HandlerClass:
self.builder = builder
self.lcnc = linuxcncInterface()
hal_glib.GPin(halcomp.newpin('config-disable', hal.HAL_BIT, hal.HAL_IN))
+ hal_glib.GPin(halcomp.newpin('thc-enable-ext', hal.HAL_BIT, hal.HAL_IN))
+ hal_glib.GPin(halcomp.newpin('cut-height-ext', hal.HAL_FLOAT, hal.HAL_IN))
configDisable = self.lcnc.linuxcncIniFile.find('PLASMAC', 'CONFIG_DISABLE') or '0'
hal.set_p('plasmac_panel.config-disable',configDisable)
self.thcFeedRate = (float(self.lcnc.linuxcncIniFile.find('AXIS_Z', 'MAX_VELOCITY')) * \
Cheers, Phill.
Last edit: 7 years 7 months ago by phillc54.
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- islander261
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7 years 7 months ago #129879
by islander261
Replied by islander261 on topic Another plasma component...
Phill
Thank you. This is exactly what I need to work with my current work flow.
Yes, I only need to change the cut height or the THC enable before the cut. I don't really understand all the git stuff but I will work on it in the morning.
I will check on the materials list thing again in the morning. I had actually changed the file before starting linuxCNC.
John
Thank you. This is exactly what I need to work with my current work flow.
Yes, I only need to change the cut height or the THC enable before the cut. I don't really understand all the git stuff but I will work on it in the morning.
I will check on the materials list thing again in the morning. I had actually changed the file before starting linuxCNC.
John
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- phillc54
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7 years 7 months ago #129880
by phillc54
Replied by phillc54 on topic Another plasma component...
John,
I tried all the sims with the materials and they work ok here.
You should be able to edit the file even while linuxcnc is running and once save then click reload on the config tab and it should reload correctly.
Cheers, Phill.
I tried all the sims with the materials and they work ok here.
You should be able to edit the file even while linuxcnc is running and once save then click reload on the config tab and it should reload correctly.
Cheers, Phill.
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7 years 7 months ago - 7 years 7 months ago #129882
by phillc54
Replied by phillc54 on topic Another plasma component...
WARNING!!!
I need to change the hal pin names in the Gmoccapy and GladeVCP sims so they are the same format as the other sims.
I need to do this to make it easier to support the different sims, at the moment it is a bit difficult.
[strike]I have almost finished Gmoccappy.[/strike]
I have finished Gmoccapy (I think...)
Cheers, Phill.
I need to change the hal pin names in the Gmoccapy and GladeVCP sims so they are the same format as the other sims.
I need to do this to make it easier to support the different sims, at the moment it is a bit difficult.
[strike]I have almost finished Gmoccappy.[/strike]
I have finished Gmoccapy (I think...)
Cheers, Phill.
Last edit: 7 years 7 months ago by phillc54.
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- andypugh
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7 years 7 months ago #129895
by andypugh
I had an idea walking across the site at work today:
If you had a pneumatic cylinder you could probe with head-weight only, then become more "springy" when cutting.
There might not even need to be any valve, just connect the cylinder to the compressed air feed to the nozzle and it automatically stiffens when cutting. Simply choose the right cylinder bore to get the required effect.
I have a cylinder (too big) that could form an entire floating mount with no extra parts, like this:
uk.rs-online.com/web/p/pneumatic-guided-cylinders/1215365/
Not cheap new, but eBay 301698037330 is a used one including magnetic limit switches for < $30
Replied by andypugh on topic Another plasma component...
islander261 wrote: I really tried hard to get just the float switch to work for probing. I tried many combinations of counter balance springs and never could get it right. If I had enough force negation with the springs then the float assembly would oscillate and over shoot when under THC. When I had it stiff enough so there was no oscillation or over shoot then the thin sheet is deflected a random amount.
I had an idea walking across the site at work today:
If you had a pneumatic cylinder you could probe with head-weight only, then become more "springy" when cutting.
There might not even need to be any valve, just connect the cylinder to the compressed air feed to the nozzle and it automatically stiffens when cutting. Simply choose the right cylinder bore to get the required effect.
I have a cylinder (too big) that could form an entire floating mount with no extra parts, like this:
uk.rs-online.com/web/p/pneumatic-guided-cylinders/1215365/
Not cheap new, but eBay 301698037330 is a used one including magnetic limit switches for < $30
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