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  • JamesHoward
  • JamesHoward
01 Aug 2024 05:01 - 01 Aug 2024 05:05
Replied by JamesHoward on topic Is a parport fast enough?

Is a parport fast enough?

Category: General LinuxCNC Questions

The Litehm2 project is for the Spartan 6 FPGA so only the RV901T is suitable.

The Litexcnc project is for the Lattice based boards.

There's also Ollie's Linuxcnc rio project, and just maybe if you ask him nicely he may be able to work his magic for your DAC. Don't know if he supports analogue servos, but might be worth hittng him up.

Thanks man! This is useful to me, I have lots of Spartan 6 FPGA's areound here!
  • JamesHoward
  • JamesHoward
01 Aug 2024 04:57
Replied by JamesHoward on topic Is a parport fast enough?

Is a parport fast enough?

Category: General LinuxCNC Questions

          and what exactly does a road train have to do with this? My very first job at 16 years old was to move houses.... Them I was a marine mech for 20 years. Now I own CNC machines and make money doing my hobby.... I dont expect to be babied thru this process, but a little mutual respect would be nice! 
  • Krulli_Fräser
  • Krulli_Fräser
01 Aug 2024 04:30
Replied by Krulli_Fräser on topic Verify my Mesa selection

Verify my Mesa selection

Category: Driver Boards

I have already made a deal with a used electronics seller. The Heidenhain components will be sold and the money from that more than covers all components for the retrofit.I weel keep the middle panel because i can wrap my head around how the small keypad and the cycle start/stop buttons are wired. In the bottom I will just use a USB keyboard and encoders for JOG/SPEED/FEED.
 
  • MennilTossFlykune
  • MennilTossFlykune
01 Aug 2024 04:24
Replied by MennilTossFlykune on topic Flexible GUI

Flexible GUI

Category: Other User Interfaces

This should all work:
    view_controls = {
        'view_rotate_up_pb': ('rotateView', 0, -10),
        'view_rotate_down_pb': ('rotateView', 0, 10),
        'view_rotate_left_pb': ('rotateView', 10, 0),
        'view_rotate_right_pb': ('rotateView', -10, 0),
        'view_pan_up_pb': ('panView', 0, 10),
        'view_pan_down_pb': ('panView', 0, -10),
        'view_pan_left_pb': ('panView', 10, 0),
        'view_pan_right_pb': ('panView', -10, 0),
        'view_zoom_in_pb': ('zoomin',),
        'view_zoom_out_pb': ('zoomout',),
        'view_clear_pb': ('clear_live_plotter',)
    }

    for key, value in view_controls.items():
        if key in parent.children:
            button = getattr(parent, key)
            if len(value) == 3:
                method, vertical, horizontal = value
                button.clicked.connect(lambda _, m=method, v=vertical, h=horizontal: (
                    getattr(parent.plotter, m)(vertical=v, horizontal=h)
                ))
            elif len(value) == 1:
                method = value[0]
                button.clicked.connect(lambda _, m=method: (
                    getattr(parent.plotter, m)()
                ))   
            
    views = {
        'view_p_pb': 'p',
        'view_x_pb': 'x',
        'view_y_pb': 'y',
        'view_y2_pb': 'y2',
        'view_z_pb': 'z',
        'view_z2_pb': 'z2'
    }

    for key, value in views.items():
        if key in parent.children:
            button = getattr(parent, key)
            button.clicked.connect(lambda _, v=value: (
                parent.plotter.makeCurrent(),
                setattr(parent.plotter, 'current_view', v),
                parent.plotter.set_current_view()
            ))
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
01 Aug 2024 04:13
Replied by Cant do this anymore bye all on topic Is a parport fast enough?

Is a parport fast enough?

Category: General LinuxCNC Questions

Hey great! Thanks for the real responses! I can appreciate the hate you guys may have for ChatGPT. I get it! I use it all the time for programming simple micrcontrollers. I knew that it wasn't quite correct. I put it there just as a thought. I didnt think there would be such an up-roar! lol I am not trying to be lazy. I just got lost in code. My brain says NO! I can build almost anything, except software!

That being said! I am a hobby CNC guy. I love these machines. I mostly build speaker boxes and I make random parts for my friends, typically for things that are obsoleted and you can't find parts. (Metal or wood) I have a Makino Lablonde FNC-106. It is a 20,000 pound absolute dream of a machine from 1988. It is as accurate as anything built currently (actually more accurate than some). It is a beauty! I also have a 1996 Morbidelli Author 502. I have replaced the NC with Mach and a Galil Motion Control. I has been good but recently, a rat chewed on some wires and fried the control card. I am playing with some ideas on replacing it on a budget. I just vbought a truck so I really dont have much to spare.

I do however have TONS of different gear around here to repurpose. I have several options. one was the parport idea. It was only a thought. Now the other thought that I have is an FPGA. I have several different FPGA boards. I am, again, just having issues with the software part of them. I have included a couple of photos of them. I think I can make the colorlight board work... With the DAC as well! I am just having difficulties. The other board that is by itself.... I think would also be a real good candidate. Anyone know much about Reverse Enginering?
 

Mate I gave you an honest and real response. Just because it doesn't make you feel warm and fuzzy doesn't make it any less real. You really need to harden up and accept criticism. It wasn't my fault chatgpt spat out garbage.
Yeah reverse engineering requires time, a good eye, an idea of what you are working with, tech level training in electronics is going to help (being able to program an arduino doesn't cut it). With FPGAs you are going to need software & tools that can do a boundary scan, including bdsl files. The very first thing you will need to do is identify the JTAG interface. You'll also need a pile of data sheets for the components you can identify, which sometimes can be a PITA. Then it is a whole lot of time, checking double checking and triple checking, getting frustrated, getting sore eyes.
But the very first thing is to find as much information as you can regarding what you are trying to reverse engineer. And honestly it's hard enough attempting repairs on multi layer boards, cos tracks in between layers can go open circuit, or go open circuit only when the board is screwed into it's housing, now imagine that issue arising when reverse engineering ?
With some of the colorlight boards they were part reverse enginered by removing all the components off the board, taking an image of the tracks, then carefully sand the first layer off to reveal one of the mid layers.
I spent the best part of 2 days reverse engineering a a mini901, think of a colorlight board, the bulk of the the board without RJ45 connectors and buffers being on a board the same format as a laptop ram module. It would have been easier if I had a carrier board for it, but alas that was not the case. There's a lot of trial and error involved.

It also could be a generational thing, cos when I was doing my apprenticeship if the work you did was crap you got told that. Tho a good tradesman would let you know how he wanted things done in the beginning and any knowledge he had, so it was wise to pay attention and not spit the dummy. Call me an old cranky bastard.
It's the same with what guys in the US call trucks, we call them utes.

This is a thing you'll see outside of the major cities (they can get much bigger and drive through some real snotty terrain), they'll break them down in country depos for their journey to the cities. B Doubles are common in the cities and major urban areas. And we wont mention the lunatics that drive the truck & dogs used in civvy construction.
 
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
01 Aug 2024 03:40
Replied by Cant do this anymore bye all on topic Is a parport fast enough?

Is a parport fast enough?

Category: General LinuxCNC Questions

The Litehm2 project is for the Spartan 6 FPGA so only the RV901T is suitable.

The Litexcnc project is for the Lattice based boards.

There's also Ollie's Linuxcnc rio project, and just maybe if you ask him nicely he may be able to work his magic for your DAC. Don't know if he supports analogue servos, but might be worth hittng him up.
  • PCW
  • PCW's Avatar
01 Aug 2024 03:04 - 01 Aug 2024 03:04

Mesa 7i77 remote error = (27) over current

Category: Driver Boards

The NCV7608s are quite fine with inductive loads up to their rated 350 mA,
but larger inductive loads must have a flyback diode. The NCV7608s can
also be damaged by excessive field voltage or switching the field voltage with
a mechanical switch or relay contact.

Also 29V is odd for relays and suggests an unregulated supply, which may also
be an issue.
  • Benb
  • Benb's Avatar
01 Aug 2024 02:28

Mesa 7i77 remote error = (27) over current

Category: Driver Boards

The 7i77 card outputs use NCV7806 IC. These chips are sensitive to overvoltage and overcurrent. You can reduce the chances of frying them by NOT disconnecting the 24vdc supply side of the card to avoid overvoltage.  Use slave relay cards to avoid overcurrent.Have look at the attached picture.  Centroidcnc equip their low-cost CNC cards with hobby grade relay card and hard wire the dc supply side (I would solder the wires) to further reduce headaches with fried chips and provide an AC plug for power disconnections.Centroidcnc has been in the business of dealing with hobbits for long time, they know how to reduce issuance of RMA’s (PCW knows what I am taking about).
   
  • tommylight
  • tommylight's Avatar
  • ffffrf
  • ffffrf
01 Aug 2024 00:04

help with millrun and/or custom Z-X-A(or C) lathe/machine

Category: Fusion 360

Please help - I am completely lost and have hit dead ends with the doosan post - I am now thinking it is better to start with the linuxcnc milling post or find a different post.

Do you think I should look for a post processor that handles 4th axis milling and limit Y axis output?
  • JamesHoward
  • JamesHoward
01 Aug 2024 00:03
Replied by JamesHoward on topic Is a parport fast enough?

Is a parport fast enough?

Category: General LinuxCNC Questions

TB6600 Drives will not push 10HP
  • JamesHoward
  • JamesHoward
01 Aug 2024 00:01
Replied by JamesHoward on topic Is a parport fast enough?

Is a parport fast enough?

Category: General LinuxCNC Questions

Hey great! Thanks for the real responses! I can appreciate the hate you guys may have for ChatGPT. I get it! I use it all the time for programming simple micrcontrollers. I knew that it wasn't quite correct. I put it there just as a thought. I didnt think there would be such an up-roar! lol I am not trying to be lazy. I just got lost in code. My brain says NO! I can build almost anything, except software!

That being said! I am a hobby CNC guy. I love these machines. I mostly build speaker boxes and I make random parts for my friends, typically for things that are obsoleted and you can't find parts. (Metal or wood) I have a Makino Lablonde FNC-106. It is a 20,000 pound absolute dream of a machine from 1988. It is as accurate as anything built currently (actually more accurate than some). It is a beauty! I also have a 1996 Morbidelli Author 502. I have replaced the NC with Mach and a Galil Motion Control. I has been good but recently, a rat chewed on some wires and fried the control card. I am playing with some ideas on replacing it on a budget. I just vbought a truck so I really dont have much to spare.

I do however have TONS of different gear around here to repurpose. I have several options. one was the parport idea. It was only a thought. Now the other thought that I have is an FPGA. I have several different FPGA boards. I am, again, just having issues with the software part of them. I have included a couple of photos of them. I think I can make the colorlight board work... With the DAC as well! I am just having difficulties. The other board that is by itself.... I think would also be a real good candidate. Anyone know much about Reverse Enginering?
  • tommylight
  • tommylight's Avatar
31 Jul 2024 22:49
Replied by tommylight on topic How to monitor OP mode in Panasonic A6B Ethercat

How to monitor OP mode in Panasonic A6B Ethercat

Category: EtherCAT

Sorry for the delay, pictures attached, DC brushed motors with tachos, no encoders, encoders were mounted on the ballscrews.



  • PCW
  • PCW's Avatar
31 Jul 2024 22:11
Replied by PCW on topic Latency Test OK, dennoch Fehlermeldung

Latency Test OK, dennoch Fehlermeldung

Category: Deutsch

As described in the hm2_eth man page, it involves adding the appropriate text
to the /etc/network/interfaces file, in your case, adding something like:

       auto eno1
       iface eno1 inet static
           address 10.10.10.2
           hardware-irq-coalesce-rx-usecs 0


You need to run the editor as root (with sudo) to edit this file

After editing the file its probably best to re-boot and then check if the
setting works with:

ethtool -c en01



 
  • Muftijaja
  • Muftijaja
31 Jul 2024 21:43 - 31 Jul 2024 21:52
Replied by Muftijaja on topic Latency Test OK, dennoch Fehlermeldung

Latency Test OK, dennoch Fehlermeldung

Category: Deutsch

Hi PCW,
the result with the ethtool is very sufficient:
 

So, do I have to copy this line in my .hal file? Or is there another way to do that permanently? I don't find that clearly in the manual doc. I'm sorry that I'm not a Linux pro but a newbie to all that.
Thanks, Arno
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