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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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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnszy4.7qA@lugnet.com... (...) very well done. Your slider design is also very good. The table is supported in all directions. You have made it simple and effective. Good engineering! (...) (17 years ago, 3-Sep-07, to lugnet.robotics.rcx)
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i uploaded a little video of the first tests with the x and y axes. check it out here: (URL) trying out wax and soap as cutting materials, i'll report again when i'Ve tested some more :) (17 years ago, 3-Sep-07, to lugnet.robotics.rcx)
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnqvwx.p6G@lugnet.com... (...) Right! Program = x+1.005, Y-2.000, F36 (hope it makes it) i have two (...) I had forgotten that you can use a Lego Fiber Optic unit for a rotation sensor. 8 (...) (17 years ago, 2-Sep-07, to lugnet.robotics.rcx)
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(...) by loaded, you mean it carries the workpiece and not the tool? (...) ooh i see now, so that's the anti-backlash gearbox!! awesome, i would never have thought of that. but i don't know if i will be able to integrate that mechanism into my (...) (17 years ago, 2-Sep-07, to lugnet.robotics.rcx)
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| | Re: I played with fire...
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Well, Philo did it again, Hourrah for him... I bypassed the fuse and the RCX came back to life. Now, will I be carefull enough with my RCX without a fuse or should I replace it ? (17 years ago, 2-Sep-07, to lugnet.robotics.rcx)
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnp0Cy.2CJ@lugnet.com... (...) This X axis gear box is loaded so there is no backlash. The 16T gear on the right side has a hole through it and is fixed to the shaft with a serrated half (...) (17 years ago, 1-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) 16t gear to the gear rack on the bottom of the table. also, the z axis seems to use an idler gear. that's exactly the setup i've built, you can see it here: (URL) top left, next to the tool changer idea (right next to the tiny word "tool"). i (...) (17 years ago, 1-Sep-07, to lugnet.robotics.rcx)
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnMwFu.CMs@lugnet.com... (...) I like the worm for a drive. It provides the best ratio and the least backlash. It also acts as a brake while the slide is under the pressure returned by (...) (17 years ago, 31-Aug-07, to lugnet.robotics.rcx)
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ok, now i understand what you mean. the problem is that this setup could be difficult for long axes, i guess the axle with the worm gears would flex too much... (...) exactly what i was thinking. that's the way the machines i've seen change their (...) (17 years ago, 31-Aug-07, to lugnet.robotics.rcx)
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnL3ox.7r9@lugnet.com... (...) As you can see, I do not know how to get "deep links" on Brick Shelf. If I figure it out I will post the links again. The tools can ride a disk in front of (...) (17 years ago, 30-Aug-07, to lugnet.robotics.rcx)
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnL3ox.7r9@lugnet.com... (...) (URL) Hope I did this right. Bob (17 years ago, 30-Aug-07, to lugnet.robotics.rcx)
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(...) indeed, i agree! (...) i can't quite picture what you mean. could you upload a drawing or something? the animation you sent is good, actually the up/down movement it makes could be the z-axis itself, saving me another motor (not the tool (...) (17 years ago, 30-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"Bob Fay" <rgfay@earthlink.net> wrote in message news:JnKABC.F5v@lugnet.com... (...) I was successful reaching your page. It answers my questions about configuration. I am sure you will agree with me that Lego should have made a rack gear that (...) (17 years ago, 30-Aug-07, to lugnet.robotics.rcx)
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnJLtv.G5y@lugnet.com... (...) That should be possible. I am thinking of parafin (sp?). That is a lot different. Worth a try. (...) Not able to recycle. Might even cause global warming. (...) (17 years ago, 30-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) heh i guess i'll go get a candle tomorrow to test this. but that certainly is bad news. but on the other hand, there are harder and softer variants of wax? (or so i've heard) (...) cool thought. but this will make a huge mess... and it's not (...) (17 years ago, 29-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnJ1C5.KxF@lugnet.com... (...) Keep in mind that vibration is a major problem when you actually attempt to cut any material. Also, the cutter wants to be drawn into the material as the (...) (17 years ago, 29-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) yes, i haven't quite figured out how to make the tools exchangeable, especialy by a machine. (manually wouldn't be a problem) one possibility would be to slowly turn the spindle while the tool is being inserted so it finds the axlehole more (...) (17 years ago, 29-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnI1G4.GAx@lugnet.com... (...) Tool changers are usually very troublesome on a real machine. You will have to do some fancy engineering to get the proper tool that your material will (...) (17 years ago, 29-Aug-07, to lugnet.robotics.rcx)
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| | Re: I played with fire...
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(...) Here is the backside : (URL) (17 years ago, 28-Aug-07, to lugnet.robotics.rcx)
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