Subject:
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Re: Neat string spooler?
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 4 Jan 2001 22:37:45 GMT
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Viewed:
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619 times
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Ross, I am currently building a Spooler, similar to industrial converting
machines used for spooling photographic films and papers. Of course, LEGO
is small, so for a stock-roll I am using a spool of thread and for
customer-rolls I am using sewing-machine bobbins. I have windup and unwind
motors with speed control (RIS) and tension control using a weighted festoon.
The system I use for having the thread wind evenly across the bobbin is a
worm-gear which guides back and forth. You do that by reversing the driving
motor. The thread is moved by the screwing action of the worm-gear. Now,
bobbins are not very wide, but you can put several worm-gears on the same
shaft if you want a wider roll.
I hope this helps,
Jerry
In lugnet.technic, Ross Crawford writes:
> Hi, all.
>
> Has anyone out there managed to design a mechanism which spools string nicely
> on a spool? ie: neatly across one way, then back the other way. I've tried a
> couple of techniques, but they're either not entirely successful, or way too
> bulky.
>
> Any ideas?
>
> Regards,
>
> ROSCO
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Message has 1 Reply:
 | | Re: Neat string spooler?
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| Jerry, Jerry Kalpin <jdkalpin@sympatico.ca> wrote in message news:G6ntIx.CrE@lugnet.com... (...) unwind (...) festoon. Sounds pretty amazing! (...) driving (...) Thanks! This may be exactly what I need. I never thought of using the worm gear (...) (24 years ago, 4-Jan-01, to lugnet.technic)
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Message is in Reply To:
| | Neat string spooler?
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| Hi, all. Has anyone out there managed to design a mechanism which spools string nicely on a spool? ie: neatly across one way, then back the other way. I've tried a couple of techniques, but they're either not entirely successful, or way too bulky. (...) (24 years ago, 3-Jan-01, to lugnet.technic)
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