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Thread: Help a guy and help yourself rails and rings

  1. #1
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    Help a guy and help yourself rails and rings

    Hey all been awhile since I have posted to the forum. Been pretty busy with school and building a cnc machine for my senior project. Was hoping to build one for myself and its looking like that I am not going to have the time to do so. So I want to try and get some money back from my projects. Need to pay for a class this summer, and I am hoping to get a shiny rock for the girl of my dreams at the end of the summer.

    Anyways I can't for the life of me figure out how to post to the classifieds, do you need a minimum number of posts? There is no new thread button. This post would probably fit better there. Anyways here is what I have Will post a pic soon.

    4X 92 inch THK 25 Linear rails excellent condition.

    2X 47.25 inch THK 25 Linear rails excellent condition.

    2X 37.75 inch THK 25 Linear rails excellent condition.

    2X 32.5 inch THK 25 Linear rails excellent condition.

    2X 22.75 inch THK 25 Linear rails excellent condition.

    6X HSR25H linear bearing blocks. 70.2mm wide 30mm high approx 80mm long with wipes and enclosed bearings, aka the balls don't fall out.

    Also have 6X Star Rexroth rails that are the 25mm type all about 47 inches long each with 2 bearing blocks.

    And here is the one that will make your eyes pop some. I have 245 inches or just over 20ft of Roller bearing rack and pinion drive. Let me describe it. there are 8 30inch pieces and 1 15inch piece or rack. Instead of gear teeth it has needle bears. The pinion is s 80.75mm 18 tooth gear that fits the needle bearings. This mean you get 245inches of zerobacklash high speed low noise, low friction, low maintenance, low heat drive distance. Gear is on a shaft and comes with two bearing blocks. Basically we are talking a ballscrew of unlimited length.

    [nomedia="http://www.youtube.com/watch?v=vPPhwoe2QMU"]YouTube - Roller Pinion System[/nomedia] This is a video that tells you about the drive system. My stuff is exactly the same except instead of having the needle bearings on the pinion, the entire rack has needle bearings along the whole length. And yes he said 36 ft/s which is over 25000ipm.
    You won't get a better drive system than this.

    Last but not least I have a 3X Keling 381 dual shaft drive motors and a gecko G540 that I want to sell too.

    So if you interested in helping a guy out let me know. Shipping will be expensive, but if you live in the New England area I am located in Southern Maine and you are welcome to come pick it up.

    Would love to sell as a package, but will probably end up splitting it all up. Would love to here what you all think is a fair price on this stuff. PICS coming soon. Thanks

    Lets see if these pics show up

    Photobucket The rails and racks

    Photobucket The Pinion

    Photobucket Close up on the racks
    Last edited by breathe; 04-09-2011 at 11:07 AM.


  2. #2
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    Last but not least I have a 3X Keling 381 dual shaft drive motors and a gecko G540 that I want to sell too.


    Interested in this as a package. Do you also have a pover supply for it. Let me know. This will be my next purchase for my machine. Send me a PM with your asking price and the history of them
    Joe


  3. #3
    Community Moderator ger21's Avatar
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    On the classifieds page, there's a menu bar. 2nd from the right, is "place an add".
    Gerry

    Mach3 2010 Screenset
    http://home.comcast.net/~cncwoodworker/2010.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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    Quote Originally Posted by wantacnc View Post
    Last but not least I have a 3X Keling 381 dual shaft drive motors and a gecko G540 that I want to sell too.


    Interested in this as a package. Do you also have a pover supply for it. Let me know. This will be my next purchase for my machine. Send me a PM with your asking price and the history of them
    Joe
    Same as the keling package. Does include a 48v 7.3 amp power supply from keling as well. Power supply has been used to run the motors only for a couple hours. Motors are the same. In brand new condition. Work great. Will sell the three motors, the driver, and power supply for $400 plus shipping. Will save you about $50-75 bucks vs Keling. Let me know


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    Package price $2500 plus shipping. Local pickup is free.


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