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Type: Posts; User: Ishtar

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    CNC Lathe Emco PC Turn 120, Havant

    Fully working on original hardware, upgraded PC. Fanuc control installed. See listing for more details!

    https://www.ebay.co.uk/itm/-/325023815756
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    PC Turn 120 Floppy Disk Images?

    Does anyone have the floppy disks for a PC Turn 120? I've finally powered mine up and it's asking for a system restore disk. If you have them, would you be able to take some image backups of the...
  3. Help choosing a used machine! Hardinge, Nakamura, Tongtai...

    Hi all

    Need some help choosing a machine from a shortlist of 3 please! This will be my first machine with a sub spindle and live tooling, I use Fusion 360 for post and I'm happy I can program for...
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    I'm using the ST-V2 Chinese breakout board from...

    I'm using the ST-V2 Chinese breakout board from earlier in the thread, and the C3 index board.

    EDIT The Bob was behaving like this even before I installed the C3
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    Re: Connect Opto Switch to Powered Input on BOB?

    Hi John

    Please may I tap into your font of knowledge once again? I have sorted the index pulse issue with a CNC4PC board, which does the same thing as my transistor but much more reliable and...
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    Re: Connect Opto Switch to Powered Input on BOB?

    Hi John

    I have a spare switch so I'll start removing components from the red switch.

    I have had successful triggers by using a separate transistor but I don't think it's switching fast enough...
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    Re: Connect Opto Switch to Powered Input on BOB?

    Hi John

    Thanks, the board in my last post is an alternative I'm considering, it's not the one I have currently. The one in the first post is correct.

    What do I need to do to get my original...
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    Re: Connect Opto Switch to Powered Input on BOB?

    Hi John

    Many thanks.

    There are indeed 2 more resistors on the back side of the switch....
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    Re: Connect Opto Switch to Powered Input on BOB?

    Hi John

    Thanks. I don't know much about the optical switch, it's one of a bunch I bought a while ago for my 3D printers. It's operating range is 3.3-5v but that's all I know. It has some...
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    Connect Opto Switch to Powered Input on BOB?

    Hi

    I've got a Boxford 160TCL that I'm converting to use Mach3, I am using this 5 axis breakout board:
    ...
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    Re: Small Lathe Suggestions for CNC Retrofit

    Thanks - this sort of thing? https://www.harborfreight.com/7-inch-x-10-inch-precision-mini-lathe-93212.html

    I'll try to track down something similar. We can get Chinese lathes for about £500 but...
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    Small Lathe Suggestions for CNC Retrofit

    Hi guys

    I'm embarking on another project, this time I want to build a CNC Lathe. Space is a huge issue for me now with the small area I have available now filled with 3D printers and a CNC'D RF31....
  13. Re: Breakout board LEDs working, Steppers enable but no movement w/Mach3 & G201s

    Hi John

    That's sorted it thanks - Plumbed all the commons into the +5v port you mentioned and it's running - BOB is powered from the USB, I noticed earlier I was getting +5v out there when I was...
  14. Re: Breakout board LEDs working, Steppers enable but no movement w/Mach3 & G201s

    Ger21, I have the pins referred to as GND on the BOB axis outputs connected to the common on the Geckos.

    I forgot to mention I'm using a PCI expansion parallel port.
  15. Breakout board LEDs working, Steppers enable but no movement w/Mach3 & G201s

    Hi all

    I have a parallel breakout board (manual attached) which I have configured in Mach3 (xml attached) following all the instructions. If I jog in Mach3 the co-ordinates move but the steppers...
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    Piggyback 2 CNC Control Systems?

    Hi all

    I've got a CNC Masters CNC Jr (poison I know). It has a USB breakout board with Gecko 201s on a separate board and proprietary control software. The USB chokes when interpolating commands. ...
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    Re: CNC Jr Spindle Control Pinout

    Can anyone help me? I'm really struggling with this.

    Is there a way I can probe the outputs of the breakout board with a multimeter to determine where to plug them in on the Invertek VFD?
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    Re: CNC Jr Spindle Control Pinout

    I've been talking to CNC Masters, this is the pinout for their current VFD. They say the breakout board wires in exactly the same way as the old one.

    http://i.imgur.com/DPZbgsT.jpg
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    Re: CNC Jr Spindle Control Pinout

    I don't unfortunately, all I've got right now are the photos. I'm going to email the owner now to see if I can get that info - they should still have the original VFD.
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    CNC Jr Spindle Control Pinout

    So I'm restoring a CNC Jr that I got for the price of moving it and a new VFD. I know it's not the best machine in the world but I couldn't refuse a bargain like that. I'm also in the process of...
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    Choosing a VFD for a CNC Jr

    Hi all

    I need some help choosing a VFD for a CNC Jr please.

    I know the one that was on it previously was a Leeson AC. It needs to take single phase 230v from the wall and convert it to 3 phase...
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    Sticky: Re: Welcome thread-tell us about you.

    Hi all, I'm from the UK, I have recently acquired a CNC Jr for just the cost of moving it and replacing the VFD. I'm sure I will be here a lot asking questions about getting it up and running and...
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