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  1. #9
    Rich's Avatar
    Lives in Warrington, United Kingdom. Last Activity: 08-04-2015 Has been a member for 9-10 years. Has a total post count of 30. Received thanks 1 times, giving thanks to others 0 times.
    Been a while.

    The table is finished - top need a final coat of urethane. The internal section of the table was coated with an urethane, grout like in its consistency, and has dampened the vibration. I haven't measured the frequency response - but visually I'm happy. The table was built with three internal vacuum boxes. They work, but I messed up the table top. When it came to the final construction, it tuned out that I'd not thought through or simply measured properly the height of the sections I was using. At the last minute I changed my approach and made matter worse than they need to be. I can fix the residual issue - its just annoying to have to fix the issue.

    The table slides over a wooden bench and locks tightly into place. Its bloody heavy and a little clumsy - so a couple of height adjustable wheels are required to make this a little more practical. They will aid the lifting of the table when the front end is moving over the side ramps. Its set up so when table drops into place it meets its mark and all the feet then touch the floor. The addition of the extra weight of the gantry has just made the lifting of the table tricky - no place to grip at the right height for lifting.

    Once its over the bench its becomes a solid unit - aided by a couple of clips and jams.

    The machine has come together. Everything in place except the leadscrew - just need to get that on a lathe. The belts and pulleys have been fitted - the belt has yet to be bonded into place. Various threaded holes in plate aluminium have been re-enforced with backing nuts. I've yet to add any thread lock. Flange bearing, Thrust bearing and bright bar, all purchased from Technobots: http://www.technobotsonline.com/ - fast delivery! I just need to find a couple of crank handles - just in case I need to back off a motor or two in the future. I have two, but they have the wrong ID.

    The parts for the PSU should start arriving tomorrow. I will be following the plans set out within this thread:
    http://www.mycncuk.com/threads/5075-...ght=Confirming
    A Great thread.

    Having one motor to hand, will help with the setting out of the cabling.

    Started looking for a motion control cards - this seems to be a fair summary of all the basic points. I suspect it will be the last thing I buy - those 12 months will soon tick by:
    http://www.automation.com/pmd/Motion...hineDesign.pdf

    Dust extraction is mostly finished - up and over the table, as per the spindle cable.
    Last edited by Rich; 26-02-2015 at 03:46 PM.

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