Re: [Emc-users] Linuxcnc and Arduino
Thank you all, I'll do tests Best regards, Pierre 2016-05-22 5:09 GMT+02:00 Chris Albertson : > On Thu, May 19, 2016 at 12:37 AM, Erik Christiansen < > dva...@internode.on.net > > wrote: > > > On 18.05.16 08:30, Chris Albertson wrote: > > > This is a general problem that applies not just to CNC machines. What > > > to do if the human interface allows a human to tell a machine to do > > > something it can't do?In this case the interface allows you to > > > command the axis to move faster then it can. The best design is to > > > prevent this. You'd need to have some kind of force feedback, a > > > torque or brake applied to the command wheel to prevent you from > > > turning it to fast. Cheaper solution is a big red LED that lights up > > > as you approach 90% of the maximum speed. Or in place of the LED a > > > vibrator motor to shake the wheel. > > > > I like the big red LED, especially together with a little mobile phone > > vibrator motor or a complaining squawker, but what about just limiting > > the joystick/knob output to MAX_VEL? > > > If it is a joystick then yes that would work. A joystick is a "jog" > command that says to the machine "go left" and you can't enter a bad > command because pushing it hard to the stop always means "go as fast as you > can". > > But the user interface device we that started this discussion was a dial. A > dial says "move a distance proportionate to how many degrees I turn the > dial". It is intended to by an analog of the dial that turns a lead screw > on a manual machine. The problem is the user can turn the dial as fast as > he likes and the only feedback that he is turning it to fast is lag in the > control. In other words the "feedback" is that the machine no longer moves > proportionate to how many degrees I turn the dial. > > The first is a velocity control and the second is a position control. > > To make a joystick always work you all you ned to do is able the hard stop > "max speed", just like you said. > > The dial could too if you could limit what a user could do with it, > > My point was not really HOW to fix this just to point out that user > interfaces can have theoretical issues a designer must address. They > either need to logically not allow invalid input (like a joystick) or the > designer needs to specify what happens when the user makes an invalid > input.This applies to software, toasters and cars not just CNC tools > > > > Within LinuxCNC that ought to be > > possible, maybe using a hal limit component? If it had to be done in the > > arduino, then the limit would also not need to be hard-coded into the > > program if means to increase/decrease the value via the user interface > > were provided, as the result could then instead be saved in on-chip > EEPROM. > > > > The latter method would permit scaling of the joystick travel to match > > MAX_VEL, whereas the former would result in the last bit of joystick > > travel doing nothing, which is suboptimal. > > > > If an operator is likely to jerk the joystick instantly to full travel, > > then it might be an idea to limit output to e.g. 95% of MAX_VEL, so that > > LinuxCNC can catch up despite limited MAX_ACCEL. > > > > Erik > > > > > > > -- > > Mobile security can be enabling, not merely restricting. Employees who > > bring their own devices (BYOD) to work are irked by the imposition of MDM > > restrictions. Mobile Device Manager Plus allows you to control only the > > apps on BYO-devices by containerizing them, leaving personal data > > untouched! > > https://ad.doubleclick.net/ddm/clk/304595813;131938128;j > > ___ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > -- > > Chris Albertson > Redondo Beach, California > > -- > Mobile security can be enabling, not merely restricting. Employees who > bring their own devices (BYOD) to work are irked by the imposition of MDM > restrictions. Mobile Device Manager Plus allows you to control only the > apps on BYO-devices by containerizing them, leaving personal data > untouched! > https://ad.doubleclick.net/ddm/clk/304595813;131938128;j > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___
Re: [Emc-users] Linuxcnc and Arduino
On Thu, May 19, 2016 at 12:37 AM, Erik Christiansen wrote: > On 18.05.16 08:30, Chris Albertson wrote: > > This is a general problem that applies not just to CNC machines. What > > to do if the human interface allows a human to tell a machine to do > > something it can't do?In this case the interface allows you to > > command the axis to move faster then it can. The best design is to > > prevent this. You'd need to have some kind of force feedback, a > > torque or brake applied to the command wheel to prevent you from > > turning it to fast. Cheaper solution is a big red LED that lights up > > as you approach 90% of the maximum speed. Or in place of the LED a > > vibrator motor to shake the wheel. > > I like the big red LED, especially together with a little mobile phone > vibrator motor or a complaining squawker, but what about just limiting > the joystick/knob output to MAX_VEL? If it is a joystick then yes that would work. A joystick is a "jog" command that says to the machine "go left" and you can't enter a bad command because pushing it hard to the stop always means "go as fast as you can". But the user interface device we that started this discussion was a dial. A dial says "move a distance proportionate to how many degrees I turn the dial". It is intended to by an analog of the dial that turns a lead screw on a manual machine. The problem is the user can turn the dial as fast as he likes and the only feedback that he is turning it to fast is lag in the control. In other words the "feedback" is that the machine no longer moves proportionate to how many degrees I turn the dial. The first is a velocity control and the second is a position control. To make a joystick always work you all you ned to do is able the hard stop "max speed", just like you said. The dial could too if you could limit what a user could do with it, My point was not really HOW to fix this just to point out that user interfaces can have theoretical issues a designer must address. They either need to logically not allow invalid input (like a joystick) or the designer needs to specify what happens when the user makes an invalid input.This applies to software, toasters and cars not just CNC tools > Within LinuxCNC that ought to be > possible, maybe using a hal limit component? If it had to be done in the > arduino, then the limit would also not need to be hard-coded into the > program if means to increase/decrease the value via the user interface > were provided, as the result could then instead be saved in on-chip EEPROM. > > The latter method would permit scaling of the joystick travel to match > MAX_VEL, whereas the former would result in the last bit of joystick > travel doing nothing, which is suboptimal. > > If an operator is likely to jerk the joystick instantly to full travel, > then it might be an idea to limit output to e.g. 95% of MAX_VEL, so that > LinuxCNC can catch up despite limited MAX_ACCEL. > > Erik > > > -- > Mobile security can be enabling, not merely restricting. Employees who > bring their own devices (BYOD) to work are irked by the imposition of MDM > restrictions. Mobile Device Manager Plus allows you to control only the > apps on BYO-devices by containerizing them, leaving personal data > untouched! > https://ad.doubleclick.net/ddm/clk/304595813;131938128;j > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linuxcnc and Arduino
On 18.05.16 08:30, Chris Albertson wrote: > This is a general problem that applies not just to CNC machines. What > to do if the human interface allows a human to tell a machine to do > something it can't do?In this case the interface allows you to > command the axis to move faster then it can. The best design is to > prevent this. You'd need to have some kind of force feedback, a > torque or brake applied to the command wheel to prevent you from > turning it to fast. Cheaper solution is a big red LED that lights up > as you approach 90% of the maximum speed. Or in place of the LED a > vibrator motor to shake the wheel. I like the big red LED, especially together with a little mobile phone vibrator motor or a complaining squawker, but what about just limiting the joystick/knob output to MAX_VEL? Within LinuxCNC that ought to be possible, maybe using a hal limit component? If it had to be done in the arduino, then the limit would also not need to be hard-coded into the program if means to increase/decrease the value via the user interface were provided, as the result could then instead be saved in on-chip EEPROM. The latter method would permit scaling of the joystick travel to match MAX_VEL, whereas the former would result in the last bit of joystick travel doing nothing, which is suboptimal. If an operator is likely to jerk the joystick instantly to full travel, then it might be an idea to limit output to e.g. 95% of MAX_VEL, so that LinuxCNC can catch up despite limited MAX_ACCEL. Erik -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linuxcnc and Arduino --> jog not run
The obvious answer is user have to read manual, it is jog wheel not a run wheel! If wheel lack break or other support for feed back then user run faster than speed limit the wheel could slip in software. For a control loop there is a similar phenomenon called wind up. Nicklas Karlsson On Wed, 18 May 2016 08:30:37 -0700 Chris Albertson wrote: > This is a general problem that applies not just to CNC machines. What > to do if the human interface allows a human to tell a machine to do > something it can't do?In this case the interface allows you to > command the axis to move faster then it can. The best design is to > prevent this. You'd need to have some kind of force feedback, a > torque or brake applied to the command wheel to prevent you from > turning it to fast. Cheaper solution is a big red LED that lights up > as you approach 90% of the maximum speed. Or in place of the LED a > vibrator motor to shake the wheel. > > In any case, I think it is always a design error if an interface > accepts commands that cannot be executed and gives no user feedback. > In that case the interface is broken by a design error. Best case is > that it is logically impossible to over drive the machine with the > interface. Maybe an example of this is that a control wheel can > always be rotated at any speed but the position of the wheel is > indicated by an LCD numeric display above the wheel that shows where > the actual position the machine is really at. (some microwave timers > and radio tuner dials work this way > A more general idea is the concept of "correctness". There are at > least two levels > 1) given correct input the computer produces correct output and > 2) in addition to #1 above, given incorrect input the computer does > not produce incorrect output. > Level #1 is usually easy to implement but for most real-world systems > you need #2 even if it is much harder to implement. > > I think what you have is a level 1 correct controller. > > On Tue, May 17, 2016 at 9:05 PM, Todd Zuercher > wrote: > > If the problem is that your able to turn the handwheel fast enough to > > exceed the maximum velocity for the axis and build up a store of pulses. > > Perhaps you should consider limiting the step size generated by the > > handwheel to one small enough that it is not possible to easily over run > > the max velocity of the axis. I have seen similar behavior even in large > > expensive commercial machines with Fanuc controls. Granted you have to > > turn the wheel really fast, faster than you can sustain for a long enough > > period to build up a significant overrun but it is detectable. > > > > - Original Message - > > From: "Forum Deswysen" > > To: "Enhanced Machine Controller (EMC)" > > Sent: Tuesday, May 17, 2016 9:22:53 AM > > Subject: Re: [Emc-users] Linuxcnc and Arduino > > > > I have a XHC - HB04 Wireless MPG during LinuxCNC HAL module. > > If I turn the crank too fast I have a time delay ??? > > > > It's dangerous > > > > 2016-05-17 11:21 GMT+02:00 Forum Deswysen : > > > >> Hi Andy, > >> > >> With a python script and the serial port : > >> > >> https://www.youtube.com/watch?v=flajZMff28U > >> > >> https://ckcnc.wordpress.com/basic-arduino-emc-howto/python-emc-module/ > >> > >> With arduino, today I 'm testing my order for tool change turret. > >> It works fine > >> > >> > >> @+ > >> > >> Pierre > >> > >> 2016-05-16 23:48 GMT+02:00 andy pugh : > >> > >>> On 16 May 2016 at 15:03, Forum Deswysen wrote: > >>> > The reaction speed is the same as a button on a Parport entry? > >>> > >>> That rather depends on how the Arduino connects to LinuxCNC, but the > >>> answer is likely to be that it won't be anywhere near as fast. > >>> > >>> > >>> -- > >>> atp > >>> "A motorcycle is a bicycle with a pandemonium attachment and is > >>> designed for the especial use of mechanical geniuses, daredevils and > >>> lunatics." > >>> — George Fitch, Atlanta Constitution Newspaper, 1916 > >>> > >>> > >>> -- > >>> Mobile security can be enabling, not merely restricting. Employees who > >>> bring their own devices (BYOD) to work are irked by the imposition of MDM > >>> restrictions. Mobile Device Manager Plus allows yo
Re: [Emc-users] Linuxcnc and Arduino
This is a general problem that applies not just to CNC machines. What to do if the human interface allows a human to tell a machine to do something it can't do?In this case the interface allows you to command the axis to move faster then it can. The best design is to prevent this. You'd need to have some kind of force feedback, a torque or brake applied to the command wheel to prevent you from turning it to fast. Cheaper solution is a big red LED that lights up as you approach 90% of the maximum speed. Or in place of the LED a vibrator motor to shake the wheel. In any case, I think it is always a design error if an interface accepts commands that cannot be executed and gives no user feedback. In that case the interface is broken by a design error. Best case is that it is logically impossible to over drive the machine with the interface. Maybe an example of this is that a control wheel can always be rotated at any speed but the position of the wheel is indicated by an LCD numeric display above the wheel that shows where the actual position the machine is really at. (some microwave timers and radio tuner dials work this way A more general idea is the concept of "correctness". There are at least two levels 1) given correct input the computer produces correct output and 2) in addition to #1 above, given incorrect input the computer does not produce incorrect output. Level #1 is usually easy to implement but for most real-world systems you need #2 even if it is much harder to implement. I think what you have is a level 1 correct controller. On Tue, May 17, 2016 at 9:05 PM, Todd Zuercher wrote: > If the problem is that your able to turn the handwheel fast enough to exceed > the maximum velocity for the axis and build up a store of pulses. Perhaps > you should consider limiting the step size generated by the handwheel to one > small enough that it is not possible to easily over run the max velocity of > the axis. I have seen similar behavior even in large expensive commercial > machines with Fanuc controls. Granted you have to turn the wheel really > fast, faster than you can sustain for a long enough period to build up a > significant overrun but it is detectable. > > - Original Message - > From: "Forum Deswysen" > To: "Enhanced Machine Controller (EMC)" > Sent: Tuesday, May 17, 2016 9:22:53 AM > Subject: Re: [Emc-users] Linuxcnc and Arduino > > I have a XHC - HB04 Wireless MPG during LinuxCNC HAL module. > If I turn the crank too fast I have a time delay ??? > > It's dangerous > > 2016-05-17 11:21 GMT+02:00 Forum Deswysen : > >> Hi Andy, >> >> With a python script and the serial port : >> >> https://www.youtube.com/watch?v=flajZMff28U >> >> https://ckcnc.wordpress.com/basic-arduino-emc-howto/python-emc-module/ >> >> With arduino, today I 'm testing my order for tool change turret. >> It works fine >> >> >> @+ >> >> Pierre >> >> 2016-05-16 23:48 GMT+02:00 andy pugh : >> >>> On 16 May 2016 at 15:03, Forum Deswysen wrote: >>> > The reaction speed is the same as a button on a Parport entry? >>> >>> That rather depends on how the Arduino connects to LinuxCNC, but the >>> answer is likely to be that it won't be anywhere near as fast. >>> >>> >>> -- >>> atp >>> "A motorcycle is a bicycle with a pandemonium attachment and is >>> designed for the especial use of mechanical geniuses, daredevils and >>> lunatics." >>> — George Fitch, Atlanta Constitution Newspaper, 1916 >>> >>> >>> -- >>> Mobile security can be enabling, not merely restricting. Employees who >>> bring their own devices (BYOD) to work are irked by the imposition of MDM >>> restrictions. Mobile Device Manager Plus allows you to control only the >>> apps on BYO-devices by containerizing them, leaving personal data >>> untouched! >>> https://ad.doubleclick.net/ddm/clk/304595813;131938128;j >>> ___ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >> >> > -- > Mobile security can be enabling, not merely restricting. Employees who > bring their own devices (BYOD) to work are irked by the imposition of MDM > restrictions. Mobile Device Manager Plus allows you to control only the > apps on BYO-devices by containerizing them, leaving
Re: [Emc-users] Linuxcnc and Arduino
If maximum speed is to low it take a while to catch up. I guess jog signal have to be limited to maximum speed. On Wed, 18 May 2016 08:40:05 +0800 Thomas Powderly wrote: > is it windup? > like a queue is filled up with commands and has to drain? > yes, handwheels should stop when you stop turning, not later > i saw it on pmacs, the fix was something like the charge-pump used on > linuxcnc > the rotary pulses allowed the action(similar to charge-pump), > and ending rotation killed pulse stream. > 'immediately' as in, by end of next plc cycle. fast enuf for most, not > perfect > > tomp > > On 05/17/16 21:22, Forum Deswysen wrote: > > I have a XHC - HB04 Wireless MPG during LinuxCNC HAL module. > > If I turn the crank too fast I have a time delay ??? > > > > It's dangerous > > > > 2016-05-17 11:21 GMT+02:00 Forum Deswysen : > > > >> Hi Andy, > >> > >> With a python script and the serial port : > >> > >> https://www.youtube.com/watch?v=flajZMff28U > >> > >> https://ckcnc.wordpress.com/basic-arduino-emc-howto/python-emc-module/ > >> > >> With arduino, today I 'm testing my order for tool change turret. > >> It works fine > >> > >> > >> @+ > >> > >> Pierre > >> > >> 2016-05-16 23:48 GMT+02:00 andy pugh : > >> > >>> On 16 May 2016 at 15:03, Forum Deswysen wrote: > The reaction speed is the same as a button on a Parport entry? > >>> That rather depends on how the Arduino connects to LinuxCNC, but the > >>> answer is likely to be that it won't be anywhere near as fast. > >>> > >>> > >>> -- > >>> atp > >>> "A motorcycle is a bicycle with a pandemonium attachment and is > >>> designed for the especial use of mechanical geniuses, daredevils and > >>> lunatics." > >>> — George Fitch, Atlanta Constitution Newspaper, 1916 > >>> > >>> > >>> -- > >>> Mobile security can be enabling, not merely restricting. Employees who > >>> bring their own devices (BYOD) to work are irked by the imposition of MDM > >>> restrictions. Mobile Device Manager Plus allows you to control only the > >>> apps on BYO-devices by containerizing them, leaving personal data > >>> untouched! > >>> https://ad.doubleclick.net/ddm/clk/304595813;131938128;j > >>> ___ > >>> Emc-users mailing list > >>> Emc-users@lists.sourceforge.net > >>> https://lists.sourceforge.net/lists/listinfo/emc-users > >>> > >> > > -- > > Mobile security can be enabling, not merely restricting. Employees who > > bring their own devices (BYOD) to work are irked by the imposition of MDM > > restrictions. Mobile Device Manager Plus allows you to control only the > > apps on BYO-devices by containerizing them, leaving personal data untouched! > > https://ad.doubleclick.net/ddm/clk/304595813;131938128;j > > ___ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > -- > Mobile security can be enabling, not merely restricting. Employees who > bring their own devices (BYOD) to work are irked by the imposition of MDM > restrictions. Mobile Device Manager Plus allows you to control only the > apps on BYO-devices by containerizing them, leaving personal data untouched! > https://ad.doubleclick.net/ddm/clk/304595813;131938128;j > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linuxcnc and Arduino
I'm not sure what context you're saying you have for the XHC. I have he XHC-HB04 on LinuxCNC RT on the Linux RT kernel. It's a VERY smooth response, but partly because my machine is very fast. There is, however, a case for time delay if you select jogmode=normal and not =vnormal on a slower machine, or with greater scale on the handwheel. Depends on the jogwheel speed vs the machine's acceleration and max velocity. IF you set the wheel to its highest speed and spin it fast, you might command a router to move 50" in one quick twist of the hand that will take the machine 5 sec to execute. This rarely comes up with me. My machine is very fast and you have to spin the wheel unnaturally aggressively at top speed to get ahead of it, and it's not possible to get ahead by more than like 1 sec. It cannot always keep the commanded position AND stop immediately when the handwheel stops. That's logically impossible. If you don't like that, you can select jogmode=vnormal and it will always stop when the handwheel stops. However, you lose sync with the wheel. e.g. quickly spin the wheel +2 turns forward and it may only register 1.5 turns before the wheel being stopped means the machine stops moving. Then turn back -2 turns slowly and the machine is -0.5 turns worth of motion from where it started, even though the handwheel is where it started. I don't like this functionality myself. And even that vnormal mode only means the gantry begins decelerating when you stop turning the handwheel. If the machine takes 0.75 sec to come to stop from jog speed, it will not come to a stop until 0.75 sec after you stop the handwheel. I recommend you reduce scale if you don't like it. e.g. if you would never turn more than 2 turns/sec on that handwheel, and your machine's got a quick acceleration and 5 inches/sec jog speed, the scale should be ~2.5 in/turn so you never outrun it. With acceleration being significant, there's no definitive answer. Danny On 5/17/2016 8:22 AM, Forum Deswysen wrote: > I have a XHC - HB04 Wireless MPG during LinuxCNC HAL module. > If I turn the crank too fast I have a time delay ??? > > It's dangerous > > 2016-05-17 11:21 GMT+02:00 Forum Deswysen : > >> Hi Andy, >> >> With a python script and the serial port : >> >> https://www.youtube.com/watch?v=flajZMff28U >> >> https://ckcnc.wordpress.com/basic-arduino-emc-howto/python-emc-module/ >> >> With arduino, today I 'm testing my order for tool change turret. >> It works fine >> >> >> @+ >> >> Pierre >> >> 2016-05-16 23:48 GMT+02:00 andy pugh : >> >>> On 16 May 2016 at 15:03, Forum Deswysen wrote: The reaction speed is the same as a button on a Parport entry? >>> That rather depends on how the Arduino connects to LinuxCNC, but the >>> answer is likely to be that it won't be anywhere near as fast. >>> >>> >>> -- >>> atp >>> "A motorcycle is a bicycle with a pandemonium attachment and is >>> designed for the especial use of mechanical geniuses, daredevils and >>> lunatics." >>> — George Fitch, Atlanta Constitution Newspaper, 1916 >>> >>> >>> -- >>> Mobile security can be enabling, not merely restricting. Employees who >>> bring their own devices (BYOD) to work are irked by the imposition of MDM >>> restrictions. Mobile Device Manager Plus allows you to control only the >>> apps on BYO-devices by containerizing them, leaving personal data >>> untouched! >>> https://ad.doubleclick.net/ddm/clk/304595813;131938128;j >>> ___ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >> > -- > Mobile security can be enabling, not merely restricting. Employees who > bring their own devices (BYOD) to work are irked by the imposition of MDM > restrictions. Mobile Device Manager Plus allows you to control only the > apps on BYO-devices by containerizing them, leaving personal data untouched! > https://ad.doubleclick.net/ddm/clk/304595813;131938128;j > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linuxcnc and Arduino
If the problem is that your able to turn the handwheel fast enough to exceed the maximum velocity for the axis and build up a store of pulses. Perhaps you should consider limiting the step size generated by the handwheel to one small enough that it is not possible to easily over run the max velocity of the axis. I have seen similar behavior even in large expensive commercial machines with Fanuc controls. Granted you have to turn the wheel really fast, faster than you can sustain for a long enough period to build up a significant overrun but it is detectable. - Original Message - From: "Forum Deswysen" To: "Enhanced Machine Controller (EMC)" Sent: Tuesday, May 17, 2016 9:22:53 AM Subject: Re: [Emc-users] Linuxcnc and Arduino I have a XHC - HB04 Wireless MPG during LinuxCNC HAL module. If I turn the crank too fast I have a time delay ??? It's dangerous 2016-05-17 11:21 GMT+02:00 Forum Deswysen : > Hi Andy, > > With a python script and the serial port : > > https://www.youtube.com/watch?v=flajZMff28U > > https://ckcnc.wordpress.com/basic-arduino-emc-howto/python-emc-module/ > > With arduino, today I 'm testing my order for tool change turret. > It works fine > > > @+ > > Pierre > > 2016-05-16 23:48 GMT+02:00 andy pugh : > >> On 16 May 2016 at 15:03, Forum Deswysen wrote: >> > The reaction speed is the same as a button on a Parport entry? >> >> That rather depends on how the Arduino connects to LinuxCNC, but the >> answer is likely to be that it won't be anywhere near as fast. >> >> >> -- >> atp >> "A motorcycle is a bicycle with a pandemonium attachment and is >> designed for the especial use of mechanical geniuses, daredevils and >> lunatics." >> — George Fitch, Atlanta Constitution Newspaper, 1916 >> >> >> -- >> Mobile security can be enabling, not merely restricting. Employees who >> bring their own devices (BYOD) to work are irked by the imposition of MDM >> restrictions. Mobile Device Manager Plus allows you to control only the >> apps on BYO-devices by containerizing them, leaving personal data >> untouched! >> https://ad.doubleclick.net/ddm/clk/304595813;131938128;j >> ___ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linuxcnc and Arduino
is it windup? like a queue is filled up with commands and has to drain? yes, handwheels should stop when you stop turning, not later i saw it on pmacs, the fix was something like the charge-pump used on linuxcnc the rotary pulses allowed the action(similar to charge-pump), and ending rotation killed pulse stream. 'immediately' as in, by end of next plc cycle. fast enuf for most, not perfect tomp On 05/17/16 21:22, Forum Deswysen wrote: > I have a XHC - HB04 Wireless MPG during LinuxCNC HAL module. > If I turn the crank too fast I have a time delay ??? > > It's dangerous > > 2016-05-17 11:21 GMT+02:00 Forum Deswysen : > >> Hi Andy, >> >> With a python script and the serial port : >> >> https://www.youtube.com/watch?v=flajZMff28U >> >> https://ckcnc.wordpress.com/basic-arduino-emc-howto/python-emc-module/ >> >> With arduino, today I 'm testing my order for tool change turret. >> It works fine >> >> >> @+ >> >> Pierre >> >> 2016-05-16 23:48 GMT+02:00 andy pugh : >> >>> On 16 May 2016 at 15:03, Forum Deswysen wrote: The reaction speed is the same as a button on a Parport entry? >>> That rather depends on how the Arduino connects to LinuxCNC, but the >>> answer is likely to be that it won't be anywhere near as fast. >>> >>> >>> -- >>> atp >>> "A motorcycle is a bicycle with a pandemonium attachment and is >>> designed for the especial use of mechanical geniuses, daredevils and >>> lunatics." >>> — George Fitch, Atlanta Constitution Newspaper, 1916 >>> >>> >>> -- >>> Mobile security can be enabling, not merely restricting. Employees who >>> bring their own devices (BYOD) to work are irked by the imposition of MDM >>> restrictions. Mobile Device Manager Plus allows you to control only the >>> apps on BYO-devices by containerizing them, leaving personal data >>> untouched! >>> https://ad.doubleclick.net/ddm/clk/304595813;131938128;j >>> ___ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >> > -- > Mobile security can be enabling, not merely restricting. Employees who > bring their own devices (BYOD) to work are irked by the imposition of MDM > restrictions. Mobile Device Manager Plus allows you to control only the > apps on BYO-devices by containerizing them, leaving personal data untouched! > https://ad.doubleclick.net/ddm/clk/304595813;131938128;j > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linuxcnc and Arduino
I have a XHC - HB04 Wireless MPG during LinuxCNC HAL module. If I turn the crank too fast I have a time delay ??? It's dangerous 2016-05-17 11:21 GMT+02:00 Forum Deswysen : > Hi Andy, > > With a python script and the serial port : > > https://www.youtube.com/watch?v=flajZMff28U > > https://ckcnc.wordpress.com/basic-arduino-emc-howto/python-emc-module/ > > With arduino, today I 'm testing my order for tool change turret. > It works fine > > > @+ > > Pierre > > 2016-05-16 23:48 GMT+02:00 andy pugh : > >> On 16 May 2016 at 15:03, Forum Deswysen wrote: >> > The reaction speed is the same as a button on a Parport entry? >> >> That rather depends on how the Arduino connects to LinuxCNC, but the >> answer is likely to be that it won't be anywhere near as fast. >> >> >> -- >> atp >> "A motorcycle is a bicycle with a pandemonium attachment and is >> designed for the especial use of mechanical geniuses, daredevils and >> lunatics." >> — George Fitch, Atlanta Constitution Newspaper, 1916 >> >> >> -- >> Mobile security can be enabling, not merely restricting. Employees who >> bring their own devices (BYOD) to work are irked by the imposition of MDM >> restrictions. Mobile Device Manager Plus allows you to control only the >> apps on BYO-devices by containerizing them, leaving personal data >> untouched! >> https://ad.doubleclick.net/ddm/clk/304595813;131938128;j >> ___ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linuxcnc and Arduino
Hi Andy, With a python script and the serial port : https://www.youtube.com/watch?v=flajZMff28U https://ckcnc.wordpress.com/basic-arduino-emc-howto/python-emc-module/ With arduino, today I 'm testing my order for tool change turret. It works fine @+ Pierre 2016-05-16 23:48 GMT+02:00 andy pugh : > On 16 May 2016 at 15:03, Forum Deswysen wrote: > > The reaction speed is the same as a button on a Parport entry? > > That rather depends on how the Arduino connects to LinuxCNC, but the > answer is likely to be that it won't be anywhere near as fast. > > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1916 > > > -- > Mobile security can be enabling, not merely restricting. Employees who > bring their own devices (BYOD) to work are irked by the imposition of MDM > restrictions. Mobile Device Manager Plus allows you to control only the > apps on BYO-devices by containerizing them, leaving personal data > untouched! > https://ad.doubleclick.net/ddm/clk/304595813;131938128;j > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linuxcnc and Arduino
On 16 May 2016 at 15:03, Forum Deswysen wrote: > The reaction speed is the same as a button on a Parport entry? That rather depends on how the Arduino connects to LinuxCNC, but the answer is likely to be that it won't be anywhere near as fast. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
