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Type: Posts; User: KiwiEngineer

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  1. Replies
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    Re: UC400ETH HY VFD Control

    Yes PD08=240. Sorry i remember having to change a few when i programmed it.

    Our mains power is 230v-240v 50hz.

    I have attached a picture of the motor. It is a 2 pole motor fyi.

    Sorry the...
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    Re: UC400ETH HY VFD Control

    Hi Mactec54, I think i have found one of those converter boards so i will hopefully get that setup soon. My only settings i set are as follows. Hopefully are correct haha.

    PD001=0 (1 For Remote...
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    Re: UC400ETH HY VFD Control

    I dont believe so? I dont have any experience programming a VFD. I currently have PD070 set to 1. Is there a way to run the HY VFD's with PWM?
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    UC400ETH HY VFD Control

    Ive just got my CNC milling machine all working finally. Im just stuck on being able to control the speed of my spindle.

    I have a UC400ETH motion controller from CNCdrive with the UCSB breakout...
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    Re: GL-45 Motor Upgrade

    Hi All,

    Ive been busy finishing my control cabinet and everything is working great. I just need to put some settings into my VFD. Can someone please help me with the correct settings. I have a...
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    Re: UCCNC Wiring Diagram

    Gidday Yall,

    So got a bit more progress now. I feel like my safety circuit is looking better. (added a contactor to my mains VFD and Stepper power lines). I have also added a green light in series...
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    Re: UCCNC Wiring Diagram

    Ello again,

    Dazp1976, Thanks for all the info! I have to admit i am truly lost haha. Definitely need to watch a few more videos on sinking.

    How can i put the relays in series when they are...
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    Re: UCCNC Wiring Diagram

    I think i understand. But if i simply ran the emergency stop on the output of the 24v power supply would that work? This would also turn off pretty much the entire system even the relay to the...
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    Re: UCCNC Wiring Diagram

    Is there a good/safe way to wire in a emergency stop using a relay? I’ve noticed most emergency stops arnt rated for very high current and i imagine my system will be around 40A.
  10. Replies
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    Re: UCCNC Wiring Diagram

    So i was just looking at Lichuan ac servo drives and they seem interesting! It would will be around $300 NZD more to go down this path then to buy a VDF and a ****ty old ac induction motor. What sort...
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    Re: UCCNC Wiring Diagram

    Thanks again Mactec54!

    So much to learn about this stuff haha. Sounds like i may be going slightly over kill with my motor choice. The mill currently has a 1.5HP single phase motor and it was...
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    Re: UCCNC Wiring Diagram

    Hi Mactec54, Can you explain this a little for me? If i plan to use a 2.2KW 10A VFD with a 2 Pole 3Hp 3Ph with full load amps of 10A . Why would i need to double the drive input amperage? The VFD can...
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    Re: UCCNC Wiring Diagram

    Maybe a 2 pole induction motor would be better suited so i dont need such a large VFD.

    Mactec54,

    If i run a motor at twice the rated frequency will this also double the rated current draw of...
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    Re: UCCNC Wiring Diagram

    Dazp1976,

    The homing switches are currently NO but i am thinking about having them NC and running them in series encase their is a fault in the picked up in future. I have chosen to run them to...
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    UCCNC Wiring Diagram

    Hello all,

    Ive roughly drawn up a wiring diagram for my control cabinet. I am not the greatest at electronics.

    Can anyone have a look over my wiring diagram and let me know if all looks good or...
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    GL-45 Motor Upgrade

    Kia ora everyone,

    I recently brought a flogged GL-45 mill which i am currently converting to CNC. It has had about 10 years of work out of an engineering firm, so fair to say the gearbox is tired...
  17. Re: AC Stepper Drive Toroidal Transformer

    Great! sounds like a toroidal transformer is the way to go. I am waiting to get the spec sheet of the transformer before i accept the order. Hopefully it is 50v.

    Looks like i need to study some...
  18. AC Stepper Drive Toroidal Transformer

    Gidday Everyone,

    Just in the process or ordering some stepper motor and drives for my RF-45 mill conversion (...
  19. Replies
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    Re: Cast Bench Top CNC Build

    Hi Roger,

    I understand with some builds you can get away with hiding belts. But with a mill-drill type conversion they become very hard to do so. My friend did a belt version and made guards to...
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    Re: Cast Bench Top CNC Build

    Hi Peter and Roger,

    Yes the plan is to use a 2005 ball screw with double nut. But from some of the builds ive been following, using beefy motors and direct driving with a low backlash coupling...
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    Re: Cast Bench Top CNC Build

    Howdy yall,

    So i havnt given up on this build. I just need to decide on the gantry and z axis design. I have a few in mind that i will share and hopefully start the ball rolling again.
    ...
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    Re: Cast Bench Top CNC Build

    Hi Mactec, Have you had much experience with IONI? I know a few people that use these in robotic project and love them. https://granitedevices.com/ionicube-multiaxis-servo-drive-boards/
  23. Replies
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    Re: Cast Bench Top CNC Build

    Hi Rod, Ive actually already brought some Nema 24 stepper motors for this build, long with a Gecko 540 and UCCNC. Plan is to keep it pretty low cost on the motor side until i feel the need to...
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    Re: Cast Bench Top CNC Build

    Hi dixdance,
    You are correct, grey iron is low cost, better in vibration and better machine ability. With SG iron having a higher tensile strength and elongation then grey iron. In all honestly i...
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    Re: Cast Bench Top CNC Build

    Hi Mactec, I think some servos in future would be good! Something like the clearpath ones seem to be an easy physical replacement. Ived used stepper motors before so i feel comfortable with those....
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    Re: Cast Bench Top CNC Build

    Hi Peter,

    As this is my first build i wanted to go down a path i thought would be the simplest or at least the path with the most documentation and resources. My original plan was to go towards...
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    Re: Cast Bench Top CNC Build

    Hi Peter, Have been looking into some of the concrete and epoxy casting. I think i still actually prefer to go down the casting in SG iron method. Simply because if my one isnt a complete disaster i...
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    Re: Cast Bench Top CNC Build

    Hi Peter, Ahh gotcha, yes i can change them to triangles. I will probably do the same to the base aswell. I was originally going to weld a steel frame, stress release it, cast it into a mold of epoxy...
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    Re: Cast Bench Top CNC Build

    Gidday Peter,

    Sorry the webs were simply there as a 2 second sketch up. Ive done a few quick mock ups what do you think? I guess no matter what way i do this im going to have to make some guide...
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    Re: Cast Bench Top CNC Build

    Thanks!

    I did look into a twin gantry style setup but it got a little complex and the extra added machining/required accuracy began to put me off a little. Definitely a good option if i had a...
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