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IndustryArena Forum > WoodWorking Machines > DIY CNC Router Table Machines > 1st Build, will this be a decent Design?
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  1. #37

    Re: 1st Build, will this be a decent Design?

    Does anyone on here know anywhere in UK/Europe i can get the PS (ger shared above) im getting quotes for around £100 delivery from the US...!?

  2. #38
    Community Moderator ger21's Avatar
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    Re: 1st Build, will this be a decent Design?

    Probably because they are very heavy. There are a couple DIY CNC suppliers in the UK. They might carry them, or something similar.
    Gerry

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  3. #39
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    Re: 1st Build, will this be a decent Design?

    Look for a supplier or electronics to the industrial markets. The parent company of Newark in the USA is based in England if I remember correctly. The problem is I can’t remember the name of that company (RSRADIO maybe).

    If searching for that company is fruitless you can look for an electrical supply house that serves industry, especially automation. Generally they will be reps for many potential suppliers, the trick is to go in acting like you know what you want. In this case an unregulated supply of Xx volts at Xx amps.

    I’m not sure if any of these sell internationally but I do know that Automation Direct has power supplies for stepper drives. Companies like Digi-Key, Newark, Mouser and others sell power supplies but they also sell parts that you cam use to make your own with. In the end all you are really talking about here is a transformer, bridge rectifier and a filter cap for the basic power supply. You should add some fusing, a power switch and whatever else floats your boat. I know Digi-Key sells at least some stuff internationally but the problem here is that transformers are heavy upping the shipping cost.


    Quote Originally Posted by BigFellaPhil View Post
    Does anyone on here know anywhere in UK/Europe i can get the PS (ger shared above) im getting quotes for around £100 delivery from the US...!?

  4. #40
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    Re: 1st Build, will this be a decent Design?

    Would an American sourced power supply generate the correct output given the difference in our electrical supplies? Its a question worth asking as the UK has 230 volts at 50Hz and not all components intended for 60Hz will behave.In some instances we have posters on this forum who seem to believe the world begins and ends at the American borders.

  5. #41
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    Re: 1st Build, will this be a decent Design?

    Would an American sourced power supply generate the correct output given the difference in our electrical supplies?
    A better question is would the American supply survive the experience? Maybe, maybe not.

    Try RSComponents in the UK for the basic bits: transformer, bridge, caps, OR for a complete PS. They are not the cheapest, but they are good quality.

    Cheers
    Roger

  6. #42
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    Re: 1st Build, will this be a decent Design?

    Hi BFP - Look at stepperonline. They have european distribution for motors, drivers, PS and other CNC stuff. Peter

  7. #43
    I’m running ihsv57-30-18-36-01-BY from JMC and they have incredible amounts of torque and speed. Also ultra quiet and I found them on aliexpress for $100 each with integrated drivers. Seems fairly competitive to steppers after you buy drivers especially compared to closed loop steppers and these are actual AC servos driven by an internal vector drive. It’s a dc to AC servo.

    Quote Originally Posted by BigFellaPhil View Post
    I've not looked into Servo Motors purely due to reading that they are considerably more costly than standard motors and my budget is tight...

  8. #44
    Quote Originally Posted by Uguessedit View Post
    I’m running ihsv57-30-18-36-01-BY from JMC and they have incredible amounts of torque and speed. Also ultra quiet and I found them on aliexpress for $100 each with integrated drivers. Seems fairly competitive to steppers after you buy drivers especially compared to closed loop steppers and these are actual AC servos driven by an internal vector drive. It’s a dc to AC servo.
    Here is a photo of my benchtop router. I designed it with the idea when I have the space I can move the z axis and all the electrical hardware to a bigger table some day. It can machine steel at slow ipm and aluminum without issue. Though it’s running I do plan to install Y axis hiwin rails (the weak point) and extend the length to 48 inches with a cast Alcoa plate. I can tell you in retrospect that slotted tables stink, mdf stinks, unless all you cut is wood. The t slots won’t ever be as flat as you want if you do any type of precision work. Considering router are not really that they can do very well setup good. My custom z axis and gantry are stout and using all my physical force cannot flex it where round rails will flex easily. I used cast Alcoa for all the parts I made. Cost was around $2/lb for drops at the local aluminum yard.. I bought most everything a year ahead and pre planned my build. The only thing I changed was rid the steppers for servos. The rest has been part of my design plan from the get go. If you can try and keep a machine usable and upgrade it along the way to minimize downtime and gain experience on it you will have more enjoyment versus it sitting there waiting for your ideal build to get finished.

  9. #45
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    Re: 1st Build, will this be a decent Design?

    It depends upon the specs for the power supply. Switch mode supplies for example are often designed to work from 50HZ to 400 Hz with a similarly wide voltage input range. However not every supply can handle that. In the same way transformer based supplies can be multi voltage and even specced for 50 Hz operation. In a nut shell you need to read the documentation!

    As for europe I’m pretty sure everything that is needed for a CNC can be found there. It might not be cheap or easy to find but the industrial base in the area kinda says that the hardware must be available. If you want to DIY a power supply for your drivers things like capacitors and rectifiers have to be engineered (sized) for what you are building and they can be purchased anywhere. The real trick is getting quality components, especially caps. Sadly I can’t help beyond that as I only know USA suppliers and a few international sources.

    Quote Originally Posted by routalot View Post
    Would an American sourced power supply generate the correct output given the difference in our electrical supplies? Its a question worth asking as the UK has 230 volts at 50Hz and not all components intended for 60Hz will behave.In some instances we have posters on this forum who seem to believe the world begins and ends at the American borders.

  10. #46
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    Re: 1st Build, will this be a decent Design?

    A thought just occurred! The power supply issue can be completely eliminated by buying stepper drives with built in supplies ready to be wired up to line voltages. These drives will cost a bit more but it does eliminate a whole bunch of design effort and can save panel space.

  11. #47
    Quote Originally Posted by wizard View Post
    A thought just occurred! The power supply issue can be completely eliminated by buying stepper drives with built in supplies ready to be wired up to line voltages. These drives will cost a bit more but it does eliminate a whole bunch of design effort and can save panel space.
    Isn’t it 50hz 380v in the UK? There should be plenty of psu’s that plug in over there to 48v DC or whatever you choose for under $100usd. Just a quick look at aliexpress there is this US $408.64 10? Off | 12V/24V/36V/48V/50V Switching Power Supply Input 110V 220V 380V AC to DC LED Smps 4000W Adjustable Power Supply
    https://s.click.aliexpress.com/e/swzP0I4g. That’s $400 however I’m sure you can find them for less. eBay has a 380v AC to 24v dc for $20 so whatever is needed there should be something compatible so he can use what he needs.

  12. #48
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    Re: 1st Build, will this be a decent Design?

    FWIW, Standard line voltage is supplied at 240v 50hz in the UK; with the official declared voltage specification being 230v (+10% to -6%) 50hz.

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