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Type: Posts; User: Pader

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  1. Alternative sources for Stepper Driver signals.

    I have, among others, just bought a cheap Chinese router/laser engraver controlled by grbl on an Arduino board. I am in the process of increasing the 320 x 160mm table size mechanically and using...
  2. Re: Can anyone identify my chinese laser controller as I need a circuit diagram.

    Thank you both for taking the trouble to help me.

    I have done some further searching and I am reasonably sure that the MOBO is an RDLC320 as none of the others that I can find are anything like...
  3. Can anyone identify my chinese laser controller as I need a circuit diagram.

    Hi folks,
    I bought my Chinese 50W(?) laser some years ago and must admit to not be being very impressed with the performance of the laser. I reckon that the quoted power, as so many others have...
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    Re: Building a positioning visual display.

    Thank you for your reply Pete and I note what you say about taking the pulse and direction signals from the parallel port.

    In my new build, I shall be incorporating a UC100 USB to parallel...
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    Building a positioning visual display.

    I am in the process of building an OSD for my home built CNC machine.

    The circuit utilises CD40110BE up/down/counter/drivers directly driving dual 7 segment displays. The ICs have an up input and...
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    Re: Earthing spindle on Yuhuan VFD

    Shielding was recommended to me by the guy from which I have bought most of my equipment. He said it is essential to prevent RF interference to nearby equipment and that he installs it on all of his...
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    Re: Earthing spindle on Yuhuan VFD

    I would not dream of using flexible conduit in the circumstances that you suggest. I do use it to route cabling on non-moving parts but if they were required to flex often, would result in the...
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    Re: Earthing spindle on Yuhuan VFD

    I am thinking that what you advocate is functionally achieved by what I have written in reply to Mactech54 above. Am I correct?
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    Re: Earthing spindle on Yuhuan VFD

    The picture shows the connection end of my spindle with just 3 pins in the Aviation connector. The black metal cap, body of the spindle and the aviation connector body all have electrical continuity...
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    Earthing spindle on Yuhuan VFD

    Hi folks,
    I am finally getting around to installing my Yuhuan VFD to my chinese, 1.5kW, water cooled spindle.

    I have watched numerable YouTube tutorials on the subject but still feel uneasy with...
  11. Chinese 1.5kW, water cooled spindle and controller.

    First of all, I apologise if I have come to the wrong section in which to make this post.

    I am working on my design for an automatic tool changer that requires the tool holder to be slowly...
  12. Information please on step/direction pulses to stepper motors.

    Hello folks.

    I intend to use a microcontroller to run an on screen digital positioning display (OSD) but need to know something of the nature of the pulses sent to the stepper driver and/or the...
  13. Re: Need info on socket connections for DRO on cheap chinese 5 Axis BOB

    Hello John-100,
    First of all, sincere apologies for not answering sooner. The cause was illness and that the notification went to my spam folder.

    I am somewhat confused at the circuit diagrams. ...
  14. Re: Considering a Chinese imported laser machine with weird plug socket - HELP

    Yes, the machine has been modified and the white socket is a standard British, 13 amp, 3 pin socket (twin and ground). However, I would guess that socket has been added for external equipment to be...
  15. Need info on socket connections for DRO on cheap chinese 5 Axis BOB

    Hi Folks
    I am rebuilding my home built CNC machine and have now fitted a 1.5 kW spindle motor with a Huanyang Inverter.

    My original BOB was a cheap chinese, 5 Axis version that came with a hand...
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    Re: Using mill table manually,, mach3 DRO readout

    I don't know if you are aware of it Dude but the rating of a stepper motor (pounds/ft, KG/Metre) is an indication of the HOLDING torque, not the cutting torque and so, when you have power applied,...
  17. Re: Chinese, 220V, 1.5 kW, water cooled spindle motore

    Thank you John, Ger and CNCman. I much appreciate your very prompt replies. Of course, the listing did not mention that the motor required a VFD. I suppose I shall have to spend out for one though...
  18. Chinese, 220V, 1.5 kW, water cooled spindle motore

    Hi Guys,
    I have been rebuilding and rewiring my home built CNC machine and bought a Chinese, 1.5 kW, water cooled spindle. It looks very substantial and thought that it would do what I need it to...
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    Best coding software?

    Hello folks,
    I have been a member of these fora for some 2years when I first became interested in CNC and thought it may give me insight into how to go about building a machine. I am involved in...
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    I do not know whether I am off the mark here but...

    I do not know whether I am off the mark here but I have come across this difference in Asian built motor shafts. They nearly all use inches instead of metric for the US market. 6.3mm equates with...
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