Subject:
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Re: New Parts
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Newsgroups:
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lugnet.technic
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Date:
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Wed, 3 Apr 2002 21:25:33 GMT
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Viewed:
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930 times
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Just in case anyone is interested,
The little machine is a desktop milling machine supplied by Microproto. They
buy the basic mill from Taig and add all the motors, controllers and software.
I am buying sheet stock ABS and ABS/PVC from McMaster, cutting it into bite
sized pieces and trying my hand at making all kinds of things out of it.
I got the machine up and running about two weeks ago, and have learned
enough in that time to make the parts I put on Brickshelf last weekend. (I
am not a machinist so I've been learning this stuff as I go.)
I would like to think that the guys in Bilund must do very much the same
thing. It is commercially necessary for TLC that most new sets have some new
parts otherwise people wouldn't need to buy them, they could just borrow
someone elses instructions.
I am thus very keen to put myself in the same position as a new model
designer - what new part would allow me to create something that would
otherwise be very hard if not impossible to build with current parts. The
ring gear and its associated application as part of a sun and planet
assembly is one example. TLC have actually been very good, in the past, at
covering a broad range of the basic mechanical structures commonly used in
engineering from differentials which require specialised parts to
over-center locking mechanisms that can be made from almost any combination
of rods and levers.
To me, Technic is a huge head start in the general area of mechnical
modelling and prototyping. But it can be added to and I personally enjoy
doing that. Especially if it can be done in a style which "looks right".
JB
> I'm guessing you're using a CNC machine (computer numerical
> control), but I'm wondering what size the machine is?
> To machine plastic at a small scale you don't need much
> power, so I'm guessing it's like a desktop CNC machine.
> Also, what material did you use, nylon, or ABS billet? :)
>
> I'm sure other AFOL engineers would also like to know....
>
> John
>
> PS. I hope those LEGO engineers in Billund are reading this
> newsgroup....
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Message has 2 Replies:
 | | Re: New Parts
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| (...) Hey, wow, are you really pleased with the Taig? How's the precision? Microproto advertises .0005 repeatability now. Other makers of micro-mills are Roland, Light Machines, Emco-Mayer, Enco, but I am not aware of one as inexpensive and (...) (22 years ago, 3-Apr-02, to lugnet.technic)
| | | RE: New Parts
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| (...) Wow, the specs for the Microproto look much better than the training machines we use in my CNC class here at school. I think they're Enco...not sure. Anyway, their max RPM is 2000, which means that parts take forever to mill, and we can only (...) (22 years ago, 4-Apr-02, to lugnet.technic)
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Message is in Reply To:
| | Re: New Parts
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| (...) Very impressive machining job on those parts John!!! I'm guessing you're using a CNC machine (computer numerical control), but I'm wondering what size the machine is? To machine plastic at a small scale you don't need much power, so I'm (...) (22 years ago, 2-Apr-02, to lugnet.technic)
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