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Thread: Got a new CNC machine - are these problems normal?

  1. #1

    Got a new CNC machine - are these problems normal?

    Hi everyone, I am new to this forum. This looks like a great place with some wonderful and knowledgeable people.

    I purchased a Laguna Tools Swift 4x4 from Laguna tools. The manual that came with the machine states:
    Laguna Tools guarantees all new machine sold to be free of manufacturers’ defective workmanship, parts, and materials. We will repair or replace without charge, any parts determined by Laguna Tools, Inc. to be a manufacturer’s defect.
    I wanted to ask this community if the following issues seem acceptable.

    Firstly the machine came with several paint scratches that were repainted poorly. The feet of the control box as well as a few of the components looked used. Many of the I-rails that run parallel to the spoil boards had stripped hex screws as well as marks around the screws indicating that they had been installed and then re-installed. Some of the holes had no screws in them causing them to lift up when the clamps are tightened. The fail safe switches only work if the machine is homed first - isn't that the point of those switches regardless? The screws were slightly stripped - showing wear - on the power terminals. Additionally I was told by my electrician that there was a connector missing. There were also loose screws on the fans inside of the control box. And finally, the big one is that the boards and rails are not square to the machine. If I line a tip up with the edge of the rail and back the gantry straight back there is a deviation of over a quarter of an inch. They didnt even square it to the machine itself - if you measure the distance from the front to the left side of the spoil boards the measurement is 1.25" if you measure the other side it's 1.5".

    I had to remove the spoil boards as well as the black, dense plastic boards that they were attached to. I labeled everything and put it back exactly. In this process I broke or stripped about half of the screws. I also found an abandoned die-tip in one of the screw holes. In their defense, they did send someone out to my place to fix all of the threads.

    I called and spoke to Laguna Tools and actually had an obviously uninformed individual try to explain away the problems I was having. First he told me that the screws were "single use" and "self tapping". I have never in my life heard of "single use" screws and I cant imagine how anyone could expect aluminum machine screws to tap tube steel. The time I called about the boards not being square the same individual told me that there was an acceptable amount of wiggle room and that it falls within that margin. He did not know how much mine was off and he also was unable to tell me what exactly their acceptable margins are. Finally they had a qualified technician call me and tell me that because there was a squaring adjustment factor that even if the machine was square it "would not be square". That in no way explains why the boards aren't even square to the machines frame. The technician suggested I use a "dowel" method to square material instead.

    There has been a few weeks that have gone by since my last conversation with Laguna Tools. I wanted to ask this informed community what I should do and what I should expect from this machine. They are offering me a bit set to pacify me but it kinda seems like too little considering what I have dealt with.

    Thank you all in advance and here is a gallery of the issues:

  2. #2
    Join Date
    Nov 2007
    Glenelg, MD
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    Looks like a refurb to me... that case was definitely painted, chipped, then repainted.
    Hi-Tec Designs, LLC -- Owner (and self-proclaimed LED guru )

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  3. #3
    Join Date
    Sep 2013
    Western Australia
    Thats sad mate, a downer on what should be an exciting new tool/toy.

    Push them for replacement, or a large refund to cover your costs in correcting it.

    Those problems are just not acceptable.
    HARDWARE - Macbook Retina Pro - Toshiba Satellite - Epilog Helix 60W Co2 Laser & Rotary - Trotec Speedy 300 Co2 Laser - Gravo IS400 IQ Engraver. - Pcut CTO630 Vinyl Cutter. - Wacom DTF720 Touch / Trace Screen - GKS DC16 Sublimation Press - Chinese 6040 CNC Router
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  4. #4
    Sadly, that's very typical of things coming from China in the machine side of things. I've seen a lot worse. I hold the belief that the Chinese manufactures like this like to get to the 80-90% mark and then just quit. With 10% more effort, they could have incredible machinery, but they just can't get there for some reason. I've seen Chinese newspaper stuffed into areas to create a shim so something wouldn't wiggle, I've seen many USED parts, many holes that don't line up (a plate might have 4 holes for bolts and only two line up), stripped out threads, stripped out screw heads. They reuse hardware over there too, so it's not uncommon for them to reuse the fasteners.

    From their standpoint, everything is cosmetic, so they probably aren't going to fix anything because there machine is in working order. It really doesn't matter if the spoilboard is crooked to the machine from their standpoint. As long as the machine moves, and does what it's supposed to do, they don't care.

    I have no dealings with Laguna, but I have seen a number of Chinese machines, different types, and what you are showing in the photos is very common. One supplier that sells vinyl cutters made in China actually brags about one model they sell saying "All new parts".
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  5. #5
    Join Date
    Mar 2014
    Iowa USA
    Did you know it was sourced in China when you purchased? How about other users, do they have problems? Not acceptable in my shop, did you pay by credit card (I hope) or another way?
    Retired Guy- Central Iowa. , LightObject 40w CO2 Laser and Chiller , WorkBee 1000x750 CNC Router - Mach4 - Windows 10

  6. #6
    Join Date
    Oct 2008
    Seattle, WA
    You pay for what you get, there have been many posts here about Laguna tools, do your homework and if you want to take a risk go for it.
    CAMaster 508 ATC + Recoil
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  7. #7
    Quote Originally Posted by Mick A Martin View Post
    You pay for what you get, there have been many posts here about Laguna tools, do your homework and if you want to take a risk go for it.

    I agree that those problems seem unacceptable, unless you purchased a refurbished unit on sale. I'm one who has posted about laguna on the positive side. They've been very responsive to me. Let us know if they don't do right by you.

  8. #8
    That machine is hardly "new". The first photo of the foot pad, looks very familiar...I'm betting that's sticky gooey flood coolant and good old grime. The rest of the pics speak for themselves...
    ELEVEN - rotary cutter tool machines
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  9. #9
    A bit set? Gee that's mighty generous of them. /sarcasm

    Totally unacceptable. No way-no how do I accept that machine as new if they sold it to you as new. Refurbed is a different story. But I'd be telling them to come get it if it was "new".
    Last edited by Scott Hearn; 05-30-2015 at 1:29 AM.

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