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  1. Thread: 60 40 Controller

    by m_c
    Replies
    2
    Views
    35,202

    Re: 60 40 Controller

    If you want to avoid Mach, then I'd doubt that there is anything available ready to go, and something custom built by somebody else is likely to cost more than $600.
  2. Replies
    13
    Views
    127,159

    Re: Blue Elephant is biting me

    If the drive Neutral (or L1/L2) terminals are connected to the N11 terminal, then it is a neutral connector.

    My guess is that whoever has wired it up previously, has bodged the wiring with 4 core,...
  3. Replies
    9
    Views
    28,681

    Re: Benefits of Belt Drives for Steppers

    The issue with microstepping, is that you're essentially relying on the energised coils to balance the rotor between steps, so any external forces can affect the actual position.
    The reduced noise...
  4. Replies
    4
    Views
    17,600

    Re: Aluminium extrusion i need big c-beam

    I did have a list of with some UK suppliers from when I was looking at building a router, but I can't find it.
    Only thing I can find, is the model I started on used a Kanya 50x100 extrusion -...
  5. Replies
    10
    Views
    175,589

    Re: Milling deep into 6062 T6

    The best place to get a rough idea of material removal rates, is to stick some figures into a speeds and feeds calculator (FS Wizard is free online, and good enough for most things).
    Your approach...
  6. Replies
    10
    Views
    153,834

    Re: BSMCEO4U board is not recognized by MACH3

    I've just realised you mentioned that the cards do work with Druful, so the drivers must be fine.

    The issue is possibly a more generic Mach3 issue, as Win11 may reject certain DLLs if it think...
  7. Replies
    10
    Views
    153,834

    Re: BSMCEO4U board is not recognized by MACH3

    Unfortunately, although I do have a Win11 laptop, I don't use it that much, and I've certainly not yet had any reason to look at how the device manager shows unrecognised devices.

    If the driver...
  8. Replies
    10
    Views
    153,834

    Re: BSMCEO4U board is not recognized by MACH3

    My guess is that the driver (DLL) isn't security signed, so won't work with Windows 11.
    If you look in Device Manager, does the card show when plugged in, and does it show as having any errors?
  9. Thread: LinuxCNC

    by m_c
    Replies
    5
    Views
    14,190

    Re: LinuxCNC

    No, they're EtherCAT only, and the other two non-EtherCAT sets I've got lying around are destined for machines.
  10. Thread: Novamill - Mach3

    by m_c
    Replies
    29
    Views
    308,955

    Re: Novamill - Mach3

    The PWM is connected to pin 1 on the parallel port, so it shouldn't be too hard to figure out.
  11. Thread: Novamill - Mach3

    by m_c
    Replies
    29
    Views
    308,955

    Re: Novamill - Mach3

    Looks like they've patched the PWM signal into the original interface board, in which case you just need to work out the PWM settings to control the spindle speed.


    You'd need to confirm, but if...
  12. Thread: Novamill - Mach3

    by m_c
    Replies
    29
    Views
    308,955

    Re: Novamill - Mach3

    The machine has been running, so I'm guessing there must already be some form of isolation.
    Going by the photos, I'm guessing P17 is being used to control the SGR (Spindle Go Relay aka switches on...
  13. Thread: Novamill - Mach3

    by m_c
    Replies
    29
    Views
    308,955

    Re: Novamill - Mach3

    It's been a long time since I've used Mach3, so can't really help you there, but it'll depend on exactly how the speed control is being done. You'll probably have to trace the wiring to establish how...
  14. Thread: Spindle Options?

    by m_c
    Replies
    7
    Views
    10,102

    Re: Spindle Options?

    Aliexpress/Alibaba is probably your best bet to get an idea of what the potential options are.
    Aliexpress is generally full of resellers, but some searching of Alibaba usually reveals the real...
  15. Replies
    12
    Views
    181,720

    BUILD LOG: Re: Planning my first CNC machine

    I have seen a similar design in the past (pretty sure it was actually on here somewhere).

    It does work, but the Z-axis is a lot of work to get everything spaced correctly, and restricts access to...
  16. Replies
    4
    Views
    24,803

    Re: Stepper motor replacement ?

    You'll only get that torque if you run at the full current.
    The lower inductance allows faster current changes, which ultimately results in better performance.

    Unless your machine is pushing the...
  17. Replies
    1
    Views
    15,817

    WANTED: Re: Sieg X2 / CMD300 Mini Mill motor required

    I doubt you'll get a secondhand one, as the spindle motor is a bit of a weak point. However not as much of a weak point as the controller normally is.

    Have you tried Arc Euro Trade?
    And Machine...
  18. Replies
    2
    Views
    18,059

    Re: Spindle pulley locked onto shaft!

    Are 100% sure there are no grubscrews on the side?
    And if there is, that they've not been doubled up?
  19. Replies
    14
    Views
    144,755

    Re: Soft Start Inrush Current Limiter- PCB design

    SSRs typically switch at the zero crossing point, however that is the worst point to switch as it'll cause the biggest inrush, which is why they're a poor choice for switching transformers (plus the...
  20. Replies
    6
    Views
    19,178

    BUILD LOG: Re: Building a machine to mimic a robot...

    As it's only polystyrene, cutting forces would be very minimal, so well designed lightweight should be more than acceptable.



    Robot control is all about kinematics.
    As long as a robot could be...
  21. Replies
    38
    Views
    223,049

    Re: 220V single phase to 380V three phase

    It would likely still have worked with a 10k pot.
    Even quick blow fuses, only trip fast if they see a big enough current. There are blow speed charts, which show that if only slightly above their...
  22. Replies
    38
    Views
    223,049

    Re: 220V single phase to 380V three phase

    Given those dimensions, you could probably fit a servo motor.
  23. Replies
    9
    Views
    28,681

    Re: Benefits of Belt Drives for Steppers

    Like a lot of things, people use something just because others have used something, but as you've realised, that doesn't mean it's the best something.

    However it looks like you've only considered...
  24. Thread: Touch probe woe's

    by m_c
    Replies
    22
    Views
    163,177

    Re: Touch probe woe's

    For that one I linked to, typical turn on time is 0.1ms, and turn off 1ms.

    On a typical home brew machine, those times are going to be negligible in the grand scheme of things.
  25. Thread: Touch probe woe's

    by m_c
    Replies
    22
    Views
    163,177

    Re: Touch probe woe's

    Something like this -
    31681
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