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  • PatJac
  • PatJac
27 Nov 2024 01:44
Replied by PatJac on topic Mesa 7i92 with PC-2-Route Model M2 BOB

Mesa 7i92 with PC-2-Route Model M2 BOB

Category: Driver Boards

pncconf also knows how to setup a stepgen as
a charge-pump

Ok ,within pncconf , nice , missed that one .

i was reading a post , you did suggest velocity mode as an option .

May i disable charge pump on both BOB ,they got jumpers , test config as is,
just curious , than back to pncconf .

Thanks
  • PCW
  • PCW's Avatar
27 Nov 2024 01:10
Replied by PCW on topic Set spindle speed

Set spindle speed

Category: HAL

You can certainly issue "S" commands in MDI mode
  • PCW
  • PCW's Avatar
27 Nov 2024 01:08
Replied by PCW on topic Mesa 7i92 with PC-2-Route Model M2 BOB

Mesa 7i92 with PC-2-Route Model M2 BOB

Category: Driver Boards

I would generate a configuration with pncconf.
pncconf also knows how to setup a stepgen as
a charge-pump
  • spumco
  • spumco
26 Nov 2024 23:16
Replied by spumco on topic Jones and shipley cylindrical grinder CNC conversion, grinding camshafts, cranks

Jones and shipley cylindrical grinder CNC conversion, grinding camshafts, cranks

Category: General LinuxCNC Questions

I'd think you'd want to put the gear holes, and especially the registration hole(s), in the end before you start grinding lobes.  Even with adjustable timing pulley/gears you still need all the lobes to be referenced to something.

Do you have a good workhead for your grinder?  I picked up a surplus high-end grinder work spindle that I was thinking of turning in to a lathe headstock, but that's not likley to happen as it has no through-bore.  I could make you a sweet deal on it... quad AC bearings and runout is not measurable on a 50-millionths indicator.
  • PCW
  • PCW's Avatar
26 Nov 2024 23:13 - 26 Nov 2024 23:14
Replied by PCW on topic Xilinx Setup to edit config for 7i92T

Xilinx Setup to edit config for 7i92T

Category: Driver Boards

If you have a 7I92T you need the Efinix tool set (Efinity) not the Xilinx tool set

The pinout looks almost identical to the G540 pinout except the step/dir pins are swapped,
so 7i92t_g540d.bin could be used if it's not too much of an issue to physically swap the
step/dir pins.

Note that for the charge-pump, a stepgen is normally used (and pncconf knows how to set this up)

If swapping the step/dir pins is too much of a pain, I can either build firmware with the more advanced stepgens
the can swap output pins (so its still a g540 configuration but with some added stepgen features)
or make a custom configuration. It is a fair nuisance to setup the tools so maybe not worth it for one configuration
that I can do a a few minutes.
  • PatJac
  • PatJac
26 Nov 2024 22:57
Replied by PatJac on topic Mesa 7i92 with PC-2-Route Model M2 BOB

Mesa 7i92 with PC-2-Route Model M2 BOB

Category: Driver Boards

File Attachment:
  first time i try Ai , it's interesting ...it does look at forum ,tutorial + user manual doc ! i think .
Ease the boring pain (well , let's be optimistic, some may enjoy it) of repetition for you devs/coders repeating; as it's writen in the book ,or solved already there , etc...
but i should come with some questions ,
nothing moved , Ai did not generate working hal  yet  , got to feed the thing with more 
still got pens and papers.

Sorry for my lack of seriousness on the forum , i'll try to stay focus...where was i ,oh, yes 12mhz generator in hal... 
File Attachment:
  • PCW
  • PCW's Avatar
26 Nov 2024 22:56
Replied by PCW on topic PC for Mesa 5i25T

PC for Mesa 5i25T

Category: Driver Boards

Yes. just create a configuration file set for the 5I25, the hal/ini files are identical
(even the name is the same in the hal file)
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
26 Nov 2024 22:50
Replied by Cant do this anymore bye all on topic Xilinx Setup to edit config for 7i92T

Xilinx Setup to edit config for 7i92T

Category: Driver Boards

Regrading the Rpi there is a pre made image. Look on the Linuxcnc home page and go to the downloads section.

Regarding Xilinx ISE I can't recall having to have Virtualization on. Make sure you are using ISE 14.7 or less as Vivado doesn't support the spartan 6.

Pete from Mesa will usually build a new config for users, so just be patient.

For info on installing ISE
wiki.linuxcnc.org/cgi-bin/wiki.pl?Editing_MESA_Bitfiles

Unfornately the images are unavailable.
  • nigelh
  • nigelh's Avatar
26 Nov 2024 22:48
Set spindle speed was created by nigelh

Set spindle speed

Category: HAL

I've just spent an unfruitful few hours searching through the HAL stuff to write a simple spindle speed set routine.
HALUI allows me to increment and decrement it in 100s but nowhere can I put in 350rpm and get it.
Is it so obvious that I've missed it?
Can I make the HALUI steps smaller, 10 or even 1, and 'buzz' it up and down?
There is an 'Increment=' value for a spindle0 in the INI but changing that from 100 didn't help.
Can I fake up an S command?
I'm sure you smart guys have done it and I must confess it is to use the mill for a pretty deviant job not pure metal cutting but...
  • lukin1156
  • lukin1156
26 Nov 2024 22:35
Replied by lukin1156 on topic PC for Mesa 5i25T

PC for Mesa 5i25T

Category: Driver Boards

Thanks for the replies, finally disabling #SERR in the BIOS settings helped.
I uploaded the bin file 5i25t_7i77x2d.bin to the card
Now I am dealing with creating a configuration using PNCconf. I don't have a choice of 5i25t card here. Should I create the files for the 5i25 card and then overwrite the .hal file of the 5i25 to the 5i25t?
  • phillc54
  • phillc54's Avatar
26 Nov 2024 22:22
Replied by phillc54 on topic Translation files for QtPlasmaC

Translation files for QtPlasmaC

Category: Plasmac

Glad you got it going.

If you wanted to you could post the .ts file when you have finished your translations and we could include it in master branch.
 
  • smc.collins
  • smc.collins
26 Nov 2024 22:18 - 26 Nov 2024 22:20
Replied by smc.collins on topic Jones and shipley cylindrical grinder CNC conversion, grinding camshafts, cranks

Jones and shipley cylindrical grinder CNC conversion, grinding camshafts, cranks

Category: General LinuxCNC Questions

I have actually found 4 companies that make software, 1 of them is relatively affordable. The issue again becomes generating tools path. I am curious about the Freecad work offset bench however. does freecad support 4th axis or C axis work ? I was considering adding a indicator with a radius foot that could act as a encoder onto a set of centers I have laying around with a encoder to grab the pertinent data. Very open to ideas on all of this BTW. the air cutting issue isn\t that big of a deal. If I can figure out how to generate the roughing profiles on the C axis, I can add a spindle to my lathe, rough turn the camshaft and then rough in the cam lobes. Stand it up and drill the ends or do it as a C-axis drilling open for the locating pin or bolt up.

I am very open to suggestions on all of this BTW  
  • StoneB
  • StoneB
26 Nov 2024 22:09 - 26 Nov 2024 22:10
Xilinx Setup to edit config for 7i92T was created by StoneB

Xilinx Setup to edit config for 7i92T

Category: Driver Boards

Hello, I am trying to set up my 7i92T for my existing controller (a Mechapro Slider SFX), and am struggling with the very first step: I have tried the two computers in the house (Windows 11) and both refuse to install the Xilinx Software ("Virtualization needs to be enabled"). I have made sure the BIOS virtualization is on, and have also tried some youtube trick to install Oracle Virtualbox already - but no success so far. 

Is there any further trick I miss?

Alternatively, I thought I could use Raspi I want to run LinuxCNC on, but I have no idea if I can install the 4 .xz packages: do I need to unzip them all four in the same folder? How do I trigger install on Linux?

Or, if anybody has the software already installed for a 7i92T, would you be willing to program it with the below ports?

Thank you!!

P2: LPT 1 (Slider SFX)
IO Connections for P2
DB25 pin#             I/O   Pri. funk    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

 1                      0   IOPort       None             
14                      1   IOPort       PWM              1        PWM             (Out)           
 2                      2   IOPort       StepGen          0        Dir/Table2      (Out)
15                      3   IOPort       None            
 3                      4   IOPort       StepGen          0        Step/Table1     (Out)
16                      5   IOPort       PWM              1        PWM             (Out)     (Toggle @ 250Mhz: Assume it needs to be a PWM)
 4                      6   IOPort       StepGen          1        Dir/Table1      (Out)
17                      7   IOPort       None
 5                      8   IOPort       StepGen          1        Step/Table1     (Out)
 6                      9   IOPort       StepGen          2        Dir/Table2      (Out)
 7                     10   IOPort       StepGen          2        Step/Table1     (Out)
 8                     11   IOPort       StepGen          3        Dir/Table2      (Out)
 9                     12   IOPort       StepGen          3        Step/Table1     (Out)
10                     13   IOPort       None           
11                     14   IOPort       None           
12                     15   IOPort       None           
13                     16   IOPort       None           

P1: IO & Encoder (Pendant & Future Spindle)
IO Connections for P1
DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

 1                     17   IOPort       None           
14                     18   IOPort       QCount           1        Quad-A          (In)           
 2                     19   IOPort       None           
15                     20   IOPort       QCount           1        Quad-B          (In)           
 3                     21   IOPort       None           
16                     22   IOPort       QCount           1        Quad-IDX        (In)           
 4                     23   IOPort       None           
17                     24   IOPort       None           
 5                     25   IOPort       None
 6                     26   IOPort       None
 7                     27   IOPort       None
 8                     28   IOPort       None
 9                     29   IOPort       None
10                     30   IOPort       QCount           1        Quad-A          (In)
11                     31   IOPort       QCount           1        Quad-B          (In)
12                     32   IOPort       QCount           1        Quad-IDX        (In)
13                     33   IOPort       None           


Slider SFX Pinout
Pin 1 Relay 1, e.g. main spindle on/off
Pin 2 Direction motor X
Pin 3 Clock motor X
Pin 4 Direction motor Y
Pin 5 Clock motor Y
Pin 6 Direction motor Z
Pin 7 Clock motor Z
Pin 8 Direction motor 4
Pin 9 Clock motor 4
Pin 10-13 Forwarded inputs, e.g. for signals from limit and
 reference switches
Pin 14 PWM signal
Pin 15 Output for ready signal
Pin 16 Toggle signal
Pin 17 Current reduction input (active low)
Pin 18-25 Signal ground (0V, GND)
  • RDA
  • RDA
26 Nov 2024 20:05
Replied by RDA on topic AX58100

AX58100

Category: EtherCAT

These are just my opinions but, you dont need isolation and you would not design to read the raw arc voltage. Most decent plasma's will give you a divided arc voltage output, most common divider ration being 50. So an arc voltage of 100, would read as 100V/50=2V. You probably only need some filtering, input buffer and over voltage protection.

I took a quick look at the AX schematic, seems its only used as a gateway and none of the "special" features are used. This begs the question, why the AX instead of the LAN9252? To me the AX seems hard to get, are there benefits to use the AX as a gateway?

What are your plans for the plasma build? Do you need the MCU to do the step/dir? Or could you just get an ethercat drive and let that handle the motion side? Then you could probably use a much simpler (cheaper and smaller) MCU for IO, Analog input, maybe an encoder for pendant etc.
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