Subject:
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Re: the LEGO CNC-Machine
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Wed, 29 Aug 2007 15:11:14 GMT
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Viewed:
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15155 times
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"daniel" <daniel.formatc.at.gmail.com> wrote in message
news:JnJ1C5.KxF@lugnet.com...
> 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 easily. or i could use the dark
> grey 16t
> gears with the round hole and the clutch ring, but i'm not sure if they
> are
> strong enough!
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 cut is being made. Wax is really bad for this effect. I think the best
material is sidewalk chalk. It is soft and could be cut with a Lego gear.
I am thinking of all the tool changers I have seen and I have not had a
vision of one in technic. I would stick with the two tool concept and keep
it as a stand alone unit to reduce the weight on Z and Y axes. Have you
decided on your configuration for the axes? What axes will carry the cutter
and what axes will carry the material.
Bob
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Message has 1 Reply:
 | | 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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Message is in Reply To:
| | 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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