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  • swepeter
  • swepeter
08 Sep 2024 14:23
Replied by swepeter on topic Mesa 7i96 Output Wiring

Mesa 7i96 Output Wiring

Category: Driver Boards

I am a bit lost as well and the pictures are gone. Is this correct?Thanks so much  
  • Aciera
  • Aciera's Avatar
08 Sep 2024 14:19
Replied by Aciera on topic Using a HAL pin in DH parameters

Using a HAL pin in DH parameters

Category: HAL

Not sure if 'genserkins.A-0' is a pin or a parameter but try using 'net' instead of 'setp'
  • Abdulkareem
  • Abdulkareem
08 Sep 2024 14:06
Using a HAL pin in DH parameters was created by Abdulkareem

Using a HAL pin in DH parameters

Category: HAL

I want to set A0 parameter as an input from the user interface, so i added this hal pin, but linuxcnc gives this error message
  • Saggy_headliner
  • Saggy_headliner's Avatar
08 Sep 2024 14:04

Troubleshooting Analog AC Servo - Full Speed at "Analog Scale Max = 0"

Category: Basic Configuration

Bench testing my configuration 7i96s + 7i77 with 1 Yasakawa AC Servo drive (SGDA-04AS) w/servo. Goal here is to get a baseline for PID settings.

Drive enable is an "active low" type and upon initial wiring I experienced a "chatter" with the relay. I fixed this by integrating a filter onto power leads for my bench setup. I'm still not 100% convinced I've eliminated all noise from the system, however, the issue below does not seem noise is root cause.

Issue: When setting parameter "hm2_7i96s.0.7i77.0.1.analogena" to enable, the servo immediately vibrates and the axis will rapidly move back and forth (the encoder does record this movement) in small increments. In the "calibration" settings, I've tried messing with the PID values to attempt to dampen this out and have observed no change. However, when I set the "ANALOG_SCALE_MAX" from it's default value to 0 and enable the drive, the servo will immediately spin at what it seems to be full speed until I disable the drive. I've changed servo drives and replicated this behavior so it seems it's something to do with my configuration.

Any idea what is going on here? 

Thanks
  • machinedude
  • machinedude's Avatar
08 Sep 2024 14:00

What do you really get for a $350 desk top engraver ?

Category: Show Your Stuff

no the black is just a reference for the belt thickness i was not even going to try to draw teeth on everything. It was was just an idea and i will probably test it just because it gives me something to do :) if nothing else you end up with a lot more surface contact engaged into the belt. Which i think is my man issue for a solution.

i look at things differently i had no idea how to model a arc tooth pulley before and now i do so i learned something :) so if you learn something it's not a total loss.
  • tommylight
  • tommylight's Avatar
08 Sep 2024 13:05

What do you really get for a $350 desk top engraver ?

Category: Show Your Stuff

Hmmmm something very wrong with that picture,
-if there is a single belt used and the red lines are also that belt, it will not reduce anything at all
-if there are more belts in use, again it just seems to much parts and effort for nothing
-if there is friction used somewhere (black belts only on pulleys???) again no use for two sets of everything
  • snowgoer540
  • snowgoer540's Avatar
08 Sep 2024 12:36
Replied by snowgoer540 on topic Building a chain driven Plasma table.

Building a chain driven Plasma table.

Category: General LinuxCNC Questions

From memory, the conversational will make each shape in the cut file with the material chosen at the top of the window.  It will always change to that material before beginning the cut for that shape. 

So, you could either hand edit the cut file to change the material number to the one you meant to use, or you could redo the conversational, remembering to first select the correct material before creating the shapes.  
  • machinedude
  • machinedude's Avatar
08 Sep 2024 12:02

What do you really get for a $350 desk top engraver ?

Category: Show Your Stuff

this is just a very crude picture of the belt route and gears for a linear reduction for open ended belts. the 72 tooth pulley's would just be a toothed idler pulley for the reduction and the idlers are for the omega configuration to route the belt out of the serpentine. the motor for the drive would just be mounted on the back side of a plate that holds everything in place.

  • tommylight
  • tommylight's Avatar
08 Sep 2024 11:40
  • tommylight
  • tommylight's Avatar
08 Sep 2024 11:36
Replied by tommylight on topic Building a chain driven Plasma table.

Building a chain driven Plasma table.

Category: General LinuxCNC Questions

I have a short video about Inkscape for plasma, bot sure if it is on toma.cnc1 or toma berisha channel, i have 4 channels on youtube.
Make the table at least 5-10cm bigger on all sides, less splash when cutting at the edges.
2mm is enough for table and slats, i used 3mm it proved to much and quite un-necessary.
  • Stormbird
  • Stormbird
08 Sep 2024 11:29
Replied by Stormbird on topic Threading with A B phase only?

Threading with A B phase only?

Category: General LinuxCNC Questions

Hi Andy I was just wondering 8 years later how your converted Emcomat 20E is running? Are there any recommendations you can offer in hindsight that might improve the retrofit? Kind regards, Adam
  • tommylight
  • tommylight's Avatar
08 Sep 2024 11:28
Replied by tommylight on topic USB ports quit working?

USB ports quit working?

Category: Installing LinuxCNC

Sorry, was sleeping! :)
ls <<< list in linux, so
lsusb <<< will list usb devices
ls <<< lists files in current folder
lsblk <<< lists block devices like HDD and USB flash
lscpu <<< lists processors
lspci <<< lists PCI device's
Etc
-
Although with Debian, i would just reinstall, it still has some strange failures at random, like disapearing panels...
  • routerman22
  • routerman22
08 Sep 2024 11:17 - 08 Sep 2024 11:50
Replied by routerman22 on topic Fanuc 2S AC spindle motor on Delta C2000+

Fanuc 2S AC spindle motor on Delta C2000+

Category: Milling Machines

I first did static im autotune and that worked.
So i did the rotary im and it faulted as oL3 derating error:

So i changed the carrier freq from 8 to the lowest setting 2. The autotuning took a bit longer but errored out on the same.
  • machinedude
  • machinedude's Avatar
08 Sep 2024 11:10

What do you really get for a $350 desk top engraver ?

Category: Show Your Stuff

the belts i am using don't have much backlash if any. Planetary gear boxes have some backlash to them and they require some space. i agree you can get some cheap gear boxes out of China even a small harmonic is not too bad in price but require the extra space. if you were needing loads of torque a harmonic drive would be the way to go but i noticed the life on the cheap ones is only 6000 or 7000 hours.

Belts are dirt cheap :) i would have to price around but you can even get pulley stock with the teeth cut if you don't want to get into doing that part and want to do some custom pulley ideas.
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