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Type: Posts; User: ledaero

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  1. Replies
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    Sticky: Re: About the Australian and New Zealand forum

    So what is your problem with it? Why does it need a controller upgrade, in your opinion? Is it faulty?
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    Sticky: Re: About the Australian and New Zealand forum

    Are you sure of the model number? That doesn't return any results.

    Does it have a Prototrak MX2 2-channel controller?
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    Re: Is this a good drive choice ?

    That's not enough power supply - look for 480-600W.

    2x Meanwell. Either https://www.amazon.com/Meanwell-NDR-480-24-Power-Supply-Economical/dp/B0774H8V1C or...
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    Re: Is this a good drive choice ?

    stupid editing caught me out: Fuller explanation:




    If it’s quite a bit more expensive, the quality of what you are looking at is very suspect, or your supplier is gouging, or you aren't...
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    If it’s quite a bit more expensive, the quality...

    If it’s quite a bit more expensive, the quality of what you are looking at is very suspect, or your supplier is gouging

    I’m not interested in building to the lowest price or in spec’ if for...
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    Re: Is this a good drive choice ?

    You can't beat 3-phase closed-loop steppers and drivers from Leadshine. Hardly much different in price from the no-name Chinese ones. Lots of choice in spec.
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    Re: Hiwin LG20 grease

    Most Hiwin rails are lubed with white lithium grease, initially - but I don't know what they use inside the bearing itself.

    https://www.hiwin.com/pdf/lubricating_instructions.pdf

    You can use...
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    Re: Laser cutting PU leather... yes or not?

    Despite your attempts to belittle with the use of 'screed' and other diminishing words, you're still as wrong as you were with your first post.
    ...
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    Re: Laser cutting PU leather... yes or not?

    epilog, as other manufacturers, specifically list polyurethane as laser safe.

    the isocyanates and ‘hydrogen cyanide gas’ are at lower levels than cutting or engraving wood.

    It’s about as...
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    Re: Anyone bought laser cutter from robotecnc

    'Andrew' was an obvious shill for the company - one post only.

    If you want a decent machine at a good price, drop me a message - I'm in NZ.
  11. Send me a PM and I’ll put you in touch

    Send me a PM and I’ll put you in touch
  12. Replies
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    Re: Chinese Laser Engraver User Experience

    If you need any of that, I’m sure it’s a plus.

    if you don’t, it’s a LOT more money than you need to spend.

    My 150W Reci EATS 15mm plywood. What would an RF laser of the same price/performance...
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    Re: Anyone bought laser cutter from robotecnc

    Not in the UK, no.
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    Re: finishing metal edges

    Hi Peter,

    Thats fantastic - just what I wanted. I can build one of those pretty easily. I have a bunch (20?) of those polypropylene wheels that fit a drill that I use for cleaning up 3D relief...
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    finishing metal edges

    I am slowly succumbing to pressure and considering buying a fibre laser. I wanted to make my own CNC plasma cutter, and still may do, but time constraints mean I am more likely to buy off-the-shelf....
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    Re: 1kW Chinese fiber laser cutter

    How long have you worked for Bodor, Celia?
  17. Re: Looking for recommendations for a Chinese CO2 laser

    If you'd bought with escrow, the seller would have eaten the loss.
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    Re: 1kW Chinese fiber laser cutter

    Except, there’s no such thing as an el-cheapo fibre laser module - even a low-powered one (30W) is US$3K. But what do you want to cut with it? It only has a very limited application outside metal...
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    Re: 1kW Chinese fiber laser cutter

    If you’re not looking at tight tolerances, have you thought about CNC plasma?

    For ‘art’ pieces and architectural it is probably much better value for money - plus you can attach it to that cheap...
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    Re: Anyone bought laser cutter from robotecnc

    Not you. I was replying to you. The one-post OP that wants to buy a machine that’s almost unknown, with no reviews or recommendations, but he wants to buy one.
  21. Re: Shenhui SH350 - need vendor settings file or screenshots

    You set the controller to its defaults without saving the settings. The controller defaults are not the machine defaults.

    ShenHui support should be able to send you the base settings
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    Re: Anyone bought laser cutter from robotecnc

    I suspect he’s trolling for robotecnc...
  23. Re: First Laser Cutting Machine purchase - any pointers?

    Danny @ Engraving Machines - there seems to. be something strange about this thread - I get the email notifications of updates, but can only see a few posts (number 9 then a jump to 29, this one) and...
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    Re: Anyone bought laser cutter from robotecnc

    What makes you want to buy from them?

    No info, no reviews, no users - why not buy from an established and popular supplier?
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    Re: Co2 chinese engraver dc to rf upgrade

    Go have a look at bell laser - they have good-as-new refilled/refurbished Synrad and can give you all the advice and parts you’ll need.
  26. Re: Help! Amp meter shows power has dropped off.

    Measure the output from your psu with a digital multimeter. Measure the output from your tube with a laser power probe - they’re only about $100 from Bell Laser.

    There are many things that can...
  27. Re: First Laser Cutting Machine purchase - any pointers?

    Or not ‘fumble through’, or get ‘a free education’, but be professional and studious about what you do. I can see why you’re a salesman and why I’m an engineer.

    Your analogy doesn’t hold water.
    ...
  28. Re: First Laser Cutting Machine purchase - any pointers?

    Mines crated and in our container (we’re in the process of moving country) but this is the same model. Mine has pass-through doors, as well..
    ...
  29. Re: First Laser Cutting Machine purchase - any pointers?

    Is it worth the $12,000 difference you charge over my ShenHui?

    That came with hybrid Leadshine steppers and motion control drivers @36V, a Reci W6, a genuine HY PSU, quality Taiwanese sealed...
  30. Re: Low laser current means time to replace the tube?

    When you say ‘adjusted as high as possible’, how high is that?

    My Reci W4 is tested/calibrated at 30mA and should be run at 26mA for 8000 hour tube life.

    A 130W tube drawing 22mA is only going...
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