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  • PCW
  • PCW's Avatar
Today 17:48 - Today 18:42

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

If this is a drive level issue, note that a 26C31 does not swing to 5V
and its output level is about 2 diode drops below 5V (3.6V) with a 5 mA load.
  • 3D-Master
  • 3D-Master
Today 16:33
Replied by 3D-Master on topic Tool life tracking with tooldata

Tool life tracking with tooldata

Category: Advanced Configuration

can this also be used for sister tools/replacement tools that point to another tool number?
  • meister
  • meister
Today 15:57 - Today 16:13
  • okielaxplyr
  • okielaxplyr
Today 15:06 - Today 15:38
spindle speed pick-up using the bull gear was created by okielaxplyr

spindle speed pick-up using the bull gear

Category: General LinuxCNC Questions

Hello folks,

Wondering if anyone has incorporated a hall effect sensor in their Bridgeport gear head to pick up real-time spindle RPM.

My plan is to drill and tap a hole to pick-up the bull gear teeth with a hall effect sensor, then wire the sensor into my encoder_4 inputs on a  mesa 7i77.
Is this is viable? If it is what I am looking for is measurements and locations on where to drill/tap the hole for the hall effect sensor, also what sensor do people use for this job? I currently have a ZF GS100502 gear tooth speed sensor good to 15khz.

I have the following hardware:
Bridgeport V2XT {1996) donor mill using the legacy servo motors and drives.
Mesa 7i92M and 7i77D
cheap amazon VFD.


Please advise.
John VanAtta
 
  • tuxcnc
  • tuxcnc
Today 14:31

How do i know if my EtherCat Install is right

Category: EtherCAT

I have bad experience with xml file.
I don't know why, but a slight difference in the block order made everything work fine, or the motors wouldn't turn...
Therefore, I recommend writing a file for one slave first, testing it thoroughly, adding another slave, testing it again and so on until the last one.
This take more time, but if something will not want to work, at least you will know where the error occurred...
  • meister
  • meister
Today 14:27

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

Hey, that’s a bit mean – I want a board like that too :)

Yes, that really is strange, but I can’t explain it at the moment and I’d be glad if I knew the solution.

All I can do here is take some more measurements; I’ll connect it to a logic analyser again and record the pulses for a bit longer to check them.
But on that board too, please measure the voltage arriving at the driver.

That board looks really good
  • Mtndrew77
  • Mtndrew77
Today 14:25
Okuma encoders and drives was created by Mtndrew77

Okuma encoders and drives

Category: General LinuxCNC Questions

Hello all,
Just out of curiosity has anyone been able to integrate Okuma drives and encoders with Linux CNC?I know that it is proprietary tech so you are not going to get much information Okuma, but was wondering if anyone has been able to crack it?Thanks
  • saxa
  • saxa
Today 13:45

Gantry oxyfuel / plasma type machine from scratch

Category: General LinuxCNC Questions

Some large commercial tables have a central exhaust duct down the side or up the centre and as the torch passes into a zone, a gate opens and the others close (usually by pneumatics) so the draft is centralised in that particular cutting zone. It is possible to track the torch position and activate the relevant zone with LinuxCNC. The dust is usually filtered and the exchaust ducted outside of the building. I did write a component that did this for another user which triggered a bank of air solenoids.


Rod, you catched me, thanks for this heads up. I have not even thought about that problem of exhaust gases and
pollution stuff. I was thinking to make a water based table under the torch, but this solves just partly this
problem of gases. We have a luck of being in a country where its hot the whole year so everything is open and ventilated, but that does not mean I dont need it.
  • viewsat
  • viewsat
Today 13:34 - Today 13:52

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

I have a Riocore + ICEBreakerV1.0e + 26LS31 (pulse, dir) control board. I tested connecting it to an unmodified DM542 (dir / pc817), but it still cannot return to the zero position correctly.There shouldn't be any problem connecting this board to the motor driver using the 26C31 differential output. Adjusting the dirhold value had no effect.  I suspect it might be caused by a deviation in the dir/step during the forward and reverse rotation of the riocore.

 ICEBreakerV1.0e board
 

26C31 Differential Output Driver
 

FPGA
 
 
  • cmorley
  • cmorley
Today 12:44
Replied by cmorley on topic Error in tool_offsetview.py

Error in tool_offsetview.py

Category: Qtvcp

Can you give details on the procedure you are using to test the sim?
I can't see this behavior on my system but maybe I am doing it wrong.

Thanks
  • tommylight
  • tommylight's Avatar
Today 11:55
Replied by tommylight on topic hm2 firmware missing in new install 2.9.10

hm2 firmware missing in new install 2.9.10

Category: Driver Boards

www.mesanet.com/parallelcardinfo.html
Second one, download and unzip then copy the missing file to where it is looking for it.
  • jochen91
  • jochen91
Today 11:44

Planning to Retrofit a Mazak Integrex200Y Mill-Turn Machine

Category: Advanced Configuration

Thank you!

It's true its my biggest project so far and in the beginning it was tremendous and overwhelmingly big. But with time and money i got an overview of the whole machine and all the things that need to be done. In retrospect thats how it always was when i started a new project. First my 3/4 axis mill, then the lathe and now the big mill turn. I like a challenge and i'm not afraid of making mistakes. They are a good teacher.

I learned so much in therms of scraping/painting/adjusting/planing. Its quit a lot of fun.

But to be honest i would not be so motivated to do this project without the help i recieved from you. So thanks to you as well!

Also my girlfriend helped and supported me a lot with lots of understanding and also alot of physical help.
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