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(...) thanks! it's nice to get that kind of feedback from someone who's not new to lego mills :) (...) yes. you can see it in my diagrams again, the cutter hangs over the table pretty far: (URL) i'm not sure yet how exactly i will manage to make it (...) (17 years ago, 3-Sep-07, to lugnet.robotics.rcx, FTX)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnt54J.Jpy@lugnet.com... (...) I liked the technic beams because I could lock them together. I imagine double wide bricks can make a good foundation. Put an ocassional beam in to allow (...) (17 years ago, 3-Sep-07, to lugnet.robotics.rcx)
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"Bob Fay" <rgfay@earthlink.net> wrote in message news:Jnt8MF.n84@lugnet.com... (...) This is one of mine. Note the left worm is out if sequence by 1/4 turn with the other two. this is putting pressure on the dual racks to remove the backlash. (URL) (...) (17 years ago, 3-Sep-07, to lugnet.robotics.rcx)
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the motor in the movie is called a "power motor", you can read about it here: (URL) the large black one with red axleholes. i'll be using it as the spindle. i guess the gearing in my axes is still too fast for the cutter, if i have to redesign the (...) (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnu7yv.K26@lugnet.com... (...) current than the RCX can supply. The smaller geared motors have a much slower rpm at their output. (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) right, that's why i'm planning to have one rcx output drive a polarity switch that connects the power motor to a normal battery box / 9v adaptor without current limiter. (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnuoJz.86D@lugnet.com... (...) I am trying to see this in my head. Your driving a polarity switch with a motor and the switch will control the power motor? Is this on each axis? I am (...) (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) no no, i will only use the indirect control for the main spindle, which will use the power motor. the axis drives will use normal technic motors (from the mindstorms set). right now i'm designing some cutters, see my other thread in the (...) (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnuwon.JGG@lugnet.com... (...) Glad to hear that! Of course, I am somewhat disappointed. I thought you would come up with some really awesome design. (...) solution. Feed rate vs chip (...) (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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"Bob Fay" <rgfay@earthlink.net> wrote in message news:Jnv1B9.4zC@lugnet.com... (...) Daniel, I posted one of my unknown machines to youtube. This one would not cut any material. The movie is very bad as I did not have a digital camera at that time. (...) (17 years ago, 5-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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I>> (...) i have the design in my head, i just need three power motors and another rcx :) (17 years ago, 5-Sep-07, to lugnet.robotics.rcx)
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnww91.2oG@lugnet.com... (...) What will drive those big motors? (17 years ago, 6-Sep-07, to lugnet.robotics.rcx)
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(...) i will drive the spindle motor using a 9v adaptor, like the ones i use for my rcx and scout ( (URL) ), so i won't run out of juice. (17 years ago, 6-Sep-07, to lugnet.robotics.rcx)
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