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  • gmr
  • gmr
04 Mar 2025 08:58
Mitsubishi Meldas Control and Motors was created by gmr

Mitsubishi Meldas Control and Motors

Category: Milling Machines

Hi All,

I have an old VMC that is based on the Mitsubishi Meldas controller and Mitsubishi motors. The machine is in good mechanical condition but the control has given up the ghost, so I plan to replace all the servo drives and do a new controller based on LinuxCNC. 

A few questions that I'd like some input on:
  • The machine has 3 phase 1kW, 3000 RPM motors on it for the X and Y axes and 2kW, 2000 RPM for the Z axis - they are Mitsubishi HA83  and Mitsubishi HA103 and have rotary encoders on them that means the original servo drives keep track of the absolute position. Does anyone have any thoughts on sticking with this motors or replacing them?  If replacing them, any suggestions for a good brand/family?
  • If I just replace the drives, then it seems that the Nidec/Control Techniques Unidrive M700 series might be a good choice? Any thoughts. Ideally I would power the drives directly from the 3 phase 415V supply (the machine currently has a transformer which delivers 200V to the drives).
  • On the control side, any suggestions as to which Mesa cards are well suited? Previously I have converted machines using the 7C81 and a Raspberry Pi and 5i25 and PC - I think this will need quite a lot of I/O so I'm thinking a PC based card this time.
Thanks,
Greg
 
  • kzali
  • kzali
04 Mar 2025 08:51
Replied by kzali on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

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

Category: Computers and Hardware

Thanks for testing :)

ohh, i forgot a package in the installer:
apt-get install openfpgaloader

the BOB is added as module in the sample config, you can convert/split this into single plugins:
 [attachment=68228]split.png[/attachment]

The pins on the left and right connector are named P1->P17,
like on the DB26 connectors:
 [attachment=68229]pins.png[/attachment]

hope that helps.

T





 

Thanks for your incredible work
So I did install 
openfpgaloader but I still got an error.  However when I installed 
OpenOCD
 it flashed without errors.
So now I cannot ping 192.168.10.94  even though I have made the intel nuc 192.168.10.1 and put 8.8.8.8 as dns.  Trired 192.168.10.93 and gateway 192.168.10.1.  maybe the w55000 is not powered and wonder if there is a jumper on the tangoboard.  I will check the solders in the morning.  
The 5axis bob as setup in your default config is great for me however I am probably too silly to understand how the pins map out on the china bob, other than the steppers.  But I will leave that for more research.  
Than you
I would imagine that the attached image is somewhat of areference   
  • Mr. Mass
  • Mr. Mass's Avatar
04 Mar 2025 07:46
Replied by Mr. Mass on topic qtdragon additonal buttons

qtdragon additonal buttons

Category: Qtvcp

In terminal "qtvcp copy", check "qtdragon_hd", name "qtdragon_hd_vertical" for your case, then ask you to create folders, agree, ask for copy, agree also. Now in your home folder will be qtvcp/screen/qtdragon_hd_vertical. Copy and replace qtdragon_hd_vertical.ui from this topic and replace/rename handler file from here - forum.linuxcnc.org/qtvcp/54731-qtdragon-...tons?start=20#320578

In your .ini file replace DISPLAY = qtvcp qtdragon_hd_vertical
  • Piet
  • Piet
04 Mar 2025 07:43
Replied by Piet on topic difference 7i76e and 7i76EU

difference 7i76e and 7i76EU

Category: Driver Boards

thank you, good to know
  • stefan63
  • stefan63's Avatar
04 Mar 2025 07:12
Replied by stefan63 on topic Announcing Deckard: StreamDeck support for LinuxCNC

Announcing Deckard: StreamDeck support for LinuxCNC

Category: Show Your Stuff

Have you seen this?
I have tampered with it for a short period and it looks great.
I beleive it would be possible to use it as base and build a one or several LinuxCNC plugins for it!?
I use a 15 key streamdeck for tests and have had no problems to simply create keybord macros.
streamcontroller.github.io/docs/latest
  • Hakan
  • Hakan
04 Mar 2025 07:10
Replied by Hakan on topic Fusion 360 post processor file for Plamac

Fusion 360 post processor file for Plamac

Category: Plasmac

You should try checking the Merge Circles box.
The test checks for a full, closed circle. If he distance between start point  and end point is < 0.01 mm it is a full circle.
Have to allow something for numerical precision but 0.2 mm seems a lot when it should be 0.

I see what happened. After the almost full circle, you got in a very short segment that should have been merged with the circle.
But instead of merging, it ended up as an own short segment. See line N430 in the G-code you attached. There is the small segment.
 
  • meister
  • meister
04 Mar 2025 06:47
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

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

Category: Computers and Hardware

Thanks for testing :)

ohh, i forgot a package in the installer:
apt-get install openfpgaloader

the BOB is added as module in the sample config, you can convert/split this into single plugins:
 

The pins on the left and right connector are named P1->P17,
like on the DB26 connectors:
 

hope that helps.





 
  • ErwinCNC
  • ErwinCNC
04 Mar 2025 06:39 - 06 Mar 2025 19:05
Replied by ErwinCNC on topic 7i96s Watchdog Ethernet

7i96s Watchdog Ethernet

Category: Deutsch

hier stand Unsinn 
  • cmorley
  • cmorley
04 Mar 2025 06:35
Replied by cmorley on topic How to open QT ui file in LinuxCNC

How to open QT ui file in LinuxCNC

Category: Qtvcp

Try this version for 2.9.
name it qtdragon_hd.ui
put it in YOUR CONFIG FOLDER/qtvcp/screens/qtdragon_hd/

Chris
  • ihavenofish
  • ihavenofish
04 Mar 2025 06:25
Replied by ihavenofish on topic New ethercat / probe basic control for minimonster

New ethercat / probe basic control for minimonster

Category: CNC Machines

  • kzali
  • kzali
04 Mar 2025 06:18
Replied by kzali on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

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

Category: Computers and Hardware

I have LCNC version 2.9.4 on a core i5. I used the Installer-Script the script all went well smoothly.
I connected my Tangobob and the China 5 axis BOB and used the deafault config for the setup Gui. Found the GUI to be very intuitive. However after Generate and Compile when I try the Flash button, I get the following error:

openFPGALoader -b tangnano9k impl/pnr/project.fs -f
make: openFPGALoader: No such file or directory
make: *** [Makefile:41: load] Error 127

Also is there any DB25 pin mapping or schematic of the China 5 axis BOB available to customize the config, or am I missing something?

Any help will be much appreciated

Thanks
  • NTULINUX
  • NTULINUX's Avatar
04 Mar 2025 06:17
Replied by NTULINUX on topic LinuxCNC on Intel Clear Linux

LinuxCNC on Intel Clear Linux

Category: Installing LinuxCNC

Thank you NTULINUX. A few years ago I started running my machines with QtDragon. I have not used axis ever since. I think your Gentoo build gives me the perfect reason to start gaining some experience with FlexGUI, which I think is a great initiative.

JT made like a 5 line change to get FlexGUI working in Gentoo, ever since, FlexGUI has been rock solid with Gentoo.

Turboss and someone else (Lcvette I think) is working on porting qtpyvcp to pyside6. Once their migration is complete, I'll be pushing out a new Gentoo image with support for qtpyvcp. qtpyvcp currently is on Qt5, and Qt5 has been getting purged by the Gentoo devs and they've been dropping support for it all across the board. QtDragon is also based on Qt5. FlexGUI is your best bet right now as it uses Qt6 and I haven't had any troubles with it. Gmoccapy also works flawlessly.
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