Buying Advice

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  • Buying Advice

    Hey guys -
    I need some advice. I have the budget to buy a new lab CMM and a new shop floor CMM. I was hoping to keep everything uniform and go with B & S all the way. The "money men" are requesting quotes from 2 other suppliers. As long as we can keep on PCDMIS I guess I'm OK with another brand CMM. So - does anyone have any favorites, suggestions, or anyone we should just plain stay away from? In our lab right now we're looking to get rid of our LK G-90C and replace it with the new one. (Also, any advice on how to sale one would be helpful). The new lab CMM should be air bearing and the shop floor CMM to be mechanical. Is there a comparible shop floor CMM out there to the B&S One? Anyway - any input would be greatly appreciated. I need to get these quoted and ordered before the "budget" gets squirreled away on me. One more note - I would like to have scanning capabilities with the Air Bearing machine. We have some parts that would be handy if we had a 2nd way to test roundness. Thanks for your input!
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  • #2
    Since you asked...

    Actually, we're a very small facility and only have use for a shop floor CMM - we went with a Sheffield Discovery II. It was our first machine and has served us really pretty well. 2 Years so far and no problems however we are not in the dirtiest environs.

    It is no speed demon but it works well with PC-DMIS (we're running 3.7MR3 & 4.0). Heck, it's even a part of the Hexagon Family.

    Overall, a fine beginner machine - I'm learning on it anyway...


    Have a look here:

    HTML Code:
    http://www.sheffieldmeasurement.com/cmm_discovery2.php
    Can't help with a lab machine - sorry!

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    • #3
      Thanks - CFisher! I checked out the web site. I noticed they have a section of pre-owned CMMs. Do you know if the take trade-ins? I asked for some quotes from them. Thanks for your input!
      sigpic

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      • #4
        Originally posted by djayne
        Thanks - CFisher! I checked out the web site. I noticed they have a section of pre-owned CMMs. Do you know if the take trade-ins? I asked for some quotes from them. Thanks for your input!
        When I worked for them they took trade ins, good luck

        TK
        sigpicHave a homebrew

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        • #5
          whats your budget like? how big of a machine do you need? are you looking for a new machine or used?

          this is what i would buy if i had a budget for a new machine -

          http://www.dea.it/comuni/prodotti_el...goria=macchine

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          • #6
            for the most part.....Hexagon owns almost all the major cmm brands.....they have bought most of the competition....
            Which one gets ridden today? MPH vs MPG..tough choice, both are FUN
            sigpic

            Starrett RGDC 4028-24 :alien:
            Demon vintages 3.7, 4.1, 4.2, 4.3, 2009

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            • #7
              Originally posted by bob mappes
              for the most part.....Hexagon owns almost all the major cmm brands.....they have bought most of the competition....

              This is what I tried to explain to my boss. Like alot of you, I have a boss who doesn't quite understand most of everything related to CMMs and programming.
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              • #8
                We have a B&S 7-10-7 Excel (probably from about 1998), 2 4-5-4 Micro Excells from 1999 and 2 B&S One 7-10-7 and a Sheffield Cordax manual with micro processor. I have looked at Shefield since Hexagon bought them and PCDMIS is standard on those and must say I prefer the ball/leadscrew drive system over the rack and pinion that B&S uses. I think they are worth looking at for sure. I don't know much about others. I heard DEA is very nice and Zies has a great reputation but like I said I don't know much about those other than reputation. I don't like the drive system on our 4-5-4s, rack and pinion is ok. Shefield puts the encoder on the z-rail instead of the scale. I think that is a great idea for clenliness but I wonder about how expansion and contraction affects the two styles and which is superior I don't know. I looked at a Discovery and the control looks simple so it is probably cheap if you need to have it serviced. It did not interpolate circular moves well though. There is another Shefield (I think Endevor) that uses linear motors and is very quiet adn the amount of moving parts is reduced greatly. I do not know how much heat builds up in a liear motor during long executions though, maybe nil, you'll have to ask. Hexagon ownes 'em all it seems like so machines with PCDMIS are becoming more and more.
                <internet bumper sticker goes here>

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