Probotix Nebula vs CNC Router Parts CRP4848 - Page 2


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Thread: Probotix Nebula vs CNC Router Parts CRP4848

  1. #13
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    Yeah. Except for their astounding QC issues and customer service problems. Anyone considering should take the time to read up on FLA


    Quote Originally Posted by manofmanyhats View Post
    This is a MUCH better machine than the other 2 you're considering OP. It will be orders of magnitude more rigid and capable of running without adjustment for quite some time. They also currently have a 25% off sale on this machine with free shipping. I don't think you're going to find anything that competes with it, short of looking at the used industrial market and waiting for the right machine to come along. The CNCRP PRO line is also very nice, but the FLA Saturn is likely considerably more rigid, as it has a welded steel frame.




  2. #14
    Gold Member LeeWay's Avatar
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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    I don't think having just the lower frame in steel makes it any more rigid than aluminum. It still uses an aluminum gantry and beam, so that is where steel would make a difference. It is no more rigid than the CRP pro version.
    Plus the bracing on the gantry is just awful design wise. At least the two in the OP have decent designs.

    Lee


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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    Quote Originally Posted by LeeWay View Post
    I don't think having just the lower frame in steel makes it any more rigid than aluminum. It still uses an aluminum gantry and beam, so that is where steel would make a difference. It is no more rigid than the CRP pro version.
    Plus the bracing on the gantry is just awful design wise. At least the two in the OP have decent designs.
    You don't think the linear rails on the FLA are far superior to either the probotix's (the gantry on which seems a little whimpy to me too) or the standard cncrp (which the OP referred to)?

    edit: I don't think any of them are bad machines, just that for around the same price, I find the FLA superior. Personally, I would save up for a CNCRP pro 5x10 though



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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    Yes. Better than the two in the OP.
    No better than the CRP Pro with profile rails too.
    That said I have not read the ball screw specs on any of them. They may or may not be better than the R&P on the CRP machines. I use the older style CRP pro with the v bearings and it along with the R&P is plenty accurate for our needs. It is a stout little machine.

    Lee


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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    Out of curiosity; would the Pro version or FLA model add any additional machining capabilities? ie AR lower?



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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    I would not think either would be strong enough or accurate enough for that. Either would probably machine aluminum easy enough, but my understanding is you need some long tooling to machine those things. Just a WAG on my part. I haven't tried it.
    If either had a steel gantry and risers, then you might be closer to the rigidity required.

    Lee


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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    I suspect that most of the lower end routers out there would have an issue with AR receiver machining. Rigidity is one issue but you also have to deal with the need to drill at reasonably low spindle speeds. Plus you really want a coolant solution

    Quote Originally Posted by DG_TX View Post
    Out of curiosity; would the Pro version or FLA model add any additional machining capabilities? ie AR lower?




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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    In that case, if I only stick with wood projects does the difference in rigidity between a pro and standard make that much of a difference to warrant the cost difference?

    Btw, I'm planning on purchasing a spindle instead of a router.



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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    Don't FLA have gantry made of steel now? My memory might plays me tricks but I think I've seen it pass in the FLA section.



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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    Quote Originally Posted by Biggs427 View Post
    Don't FLA have gantry made of steel now? My memory might plays me tricks but I think I've seen it pass in the FLA section.
    Yes the new models are steel , as well as some other upgrades

    I don't actaully know anything about CNC router tables , but I stayed at a Holiday Inn Express last night


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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    I didn't realize the gantry was now made of steel tubing too. Seems like a really nice kit at that pricepoint if all of the QC issues have been worked out, though personally I think I would kick myself for not getting something larger (I'm still tinkering along with my own DIY 2'x4' machine)



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    Community Moderator ger21's Avatar
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    Default Re: Probotix Nebula vs CNC Router Parts CRP4848

    Quote Originally Posted by DG_TX View Post
    In that case, if I only stick with wood projects does the difference in rigidity between a pro and standard make that much of a difference to warrant the cost difference?
    Yes. And in addition to the increased rigidity, you'll also get much smoother motion.
    Also, the rails on the standard are not very tolerant of dust on the rails, with many users reporting binding if dust gets on the rails. The linear bearings on the Pro are unaffected by dust and chips on the rails.
    And the linear bearings on the Pro will last a lifetime.

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


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