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  1. Replies
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    Re: Help a Newb Build an 8x4 Machine ????

    Hi Zorbit,
    Thanks for your thoughts, I started off thinking I could do that kind of build, seen so many people bash R&P I automatically disregarded it as an option, but I do understand it’s the...
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    Re: Help a Newb Build an 8x4 Machine ????

    Thanks fellas, I understand I need to know what’s forces I’m wanting to achieve, at this stage, I just wanted to get a rough idea of the cost of the Linear Motors system, to see whether it’s worth...
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    Re: Help a Newb Build an 8x4 Machine ????

    Hi Peter, I’m going to get a quote from Hiwin for the LMX, and LMC system, looks easier to implement and possibly cheaper.
    This is link to the specs page, which power would you suggest? If you have...
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    Re: Help a Newb Build an 8x4 Machine ????

    Hi Peter,
    Do you mean the LMT series? That looks like witch craft to me...lol
    Also looks amazing.. I’m looking at LMT6T, does that look a suitable spec you you? Although it does say max stroke is...
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    Re: Help a Newb Build an 8x4 Machine ????

    Hahahaa.... ahahaaa.. hahahaaaa.. sorry StrawberryBoi, I’m still laughing from the quote I received today from Stober... £1500 gbp EACH. They are made to accept off the shelf sizes rotating ball...
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    Re: Help a Newb Build an 8x4 Machine ????

    Yeah I do kinda go over the top with most projects..lol

    This is the kind of thing I had in mind..
    The top is 450+18mm off the floor
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    Re: Help a Newb Build an 8x4 Machine ????

    Thanks Peter, going for a look at those belts.

    On the Driven Nut plan, found a company that make through shaft servo motors.. specs look promising.. but, they look really, really expensive.. Iv...
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    Re: Help a Newb Build an 8x4 Machine ????

    Hi Peter,

    Thanks for the link, it’s not working on my iPad atm but I’ll check it out when I get in front of a pc.
    My experience of belt drive things is Engines. I used to build a fair few...
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    Re: Help a Newb Build an 8x4 Machine ????

    Well, Belts are expensive.. lol
    For a length of 8ft, would I need a belt to be a full continuous loop, or could I use a belt clamped at each end, and driven pulley on gantry.
    Or, am I better off...
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    Re: Help a Newb Build an 8x4 Machine ????

    Hi Peter,

    Screen shot and link below is what I mean by non captive motor. These particle ones range from 460N to 900N force(assuming they mean Nm), that’s wildly different to the 4nm and 2nm you...
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    Re: Help a Newb Build an 8x4 Machine ????

    This is what I’m getting at, this is where Iv been struggling to spec the appropriate motor.

    Thank you for taking the time to explain this, exactly the sort of info Iv been after, very much...
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    Re: Help a Newb Build an 8x4 Machine ????

    Hi Peter, angle iron Iv drawn is 100mm x 100mm x 14mm, in reality, I think 12mm thick will suffice. 12mm stuff is tough as hell, welded to the legs every ~500mm or so.
    Idea of the angle iron was to...
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    Re: Help a Newb Build an 8x4 Machine ????

    Hi Peter, thanks for your thoughts, I take on board what you’re saying about a flat bed, I’ll do my best, I have a Fab shop behind my unit, they have a big engineers flat table I can use, hopefully...
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    Re: Help a Newb Build an 8x4 Machine ????

    That’s a great idea, Iv just had a quick look at driven ball nuts, they are expensive to buy, but easy enough to make. Most are smooth for flat belts, I’d like them with teeth/notched belt, or better...
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    Re: Help a Newb Build an 8x4 Machine ????

    I need to workout the following..Ball Screw Pitch, Stepper Motor Spec, Drivers Spec..

    How do I work this out? Is there a guide somewhere on how to equate the variables?

    Considering the Ball...
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    Re: Help a Newb Build an 8x4 Machine ????

    Hi Andrew, I shall bare that in mind.
    Iv decided to scrap the adjustable hight mounting method I had planned, and decided to make end plates for the gantry to be adjustable. I’m designing it to...
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    Re: Help a Newb Build an 8x4 Machine ????

    Hi Andrew, thanks for taking the time to reply. Iv done a few more evenings of reading/youtubing, there is so many variables I don’t know where to start in spec’ing the components, so many articles...
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    Re: Help a Newb Build an 8x4 Machine ????

    Thank you both, much appreciated.
    I can assure you it will be firmly fixed each and every time I come to use it. My workshop is a reasonable size but I can not afford an 8x4 area to be solely for...
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    Help a Newb Build an 8x4 Machine ????

    Hi All,

    I’m new here, given myself a 2 week crash course with a 3018, done 4 jobs, now ready to build a decent size machine. I only learn by ‘doing’, so in the deep end suits me fine.

    I have...
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