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  1. 09-05-2020 #1
    Boyan Silyavski's Avatar
    Lives in Denia, Spain.
    Boyan Silyavski
    Last Activity: 15-04-2024 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 2,049. Received thanks 333 times, giving thanks to others 55 times. Made a monetary donation to the upkeep of the community.
    IMO its good for max 60x40cm machines. 60x90 machine i wouldnt make fixed gantry
    project 1 , 2, Dust Shoe ...
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  2. 09-05-2020 #2
    JAZZCNC's Avatar
    Lives in wakefield, United Kingdom.
    JAZZCNC
    Last Activity: 19-01-2024 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 8,446. Received thanks 1,445 times, giving thanks to others 109 times.
    Quote Originally Posted by Boyan Silyavski View Post
    IMO its good for max 60x40cm machines. 60x90 machine i wouldnt make fixed gantry
    Why Size of the machine as nothing to do with it.!
    If you have the extra space it requires then a fixed gantry will always be stiffer than a moving gantry by the simple fact your not having to deal with a moving Mass so can build it stronger with no penalty other than extra length.

    Some of the largest CNC machines in the world are Fixed Gantry machines.!
    -use common sense, if you lack it, there is no software to help that.

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  3. 10-05-2020 #3
    Boyan Silyavski's Avatar
    Lives in Denia, Spain.
    Boyan Silyavski
    Last Activity: 15-04-2024 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 2,049. Received thanks 333 times, giving thanks to others 55 times. Made a monetary donation to the upkeep of the community.
    Quote Originally Posted by JAZZCNC View Post
    Why Size of the machine as nothing to do with it.!
    If you have the extra space it requires then a fixed gantry will always be stiffer than a moving gantry by the simple fact your not having to deal with a moving Mass so can build it stronger with no penalty other than extra length.

    Some of the largest CNC machines in the world are Fixed Gantry machines.!
    Isn't it a bit strange for a 1m table to move back and front? it seems too long
    project 1 , 2, Dust Shoe ...
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  4. 10-05-2020 #4
    Kitwn's Avatar
    Lives in Don, Tasmania, Australia.
    Kitwn
    Last Activity: 15-07-2024 Has been a member for 7-8 years. Has a total post count of 983. Received thanks 118 times, giving thanks to others 52 times.
    Quote Originally Posted by Boyan Silyavski View Post
    Isn't it a bit strange for a 1m table to move back and front? it seems too long
    Surely you'd make the long axis the fixed one in this instance? No problems in building a rigid gantry with 900mm travel.
    An optimist says the glass is half full, a pessimist says the glass is half empty, an engineer says you're using the wrong sized glass.
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