Subject:
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Re: Motor-powered 8880??
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Newsgroups:
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lugnet.technic
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Date:
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Fri, 17 Dec 1999 10:18:49 GMT
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Viewed:
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636 times
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"Pat" == Pat <patrickemerson@mindspring.com> writes:
Pat> I know I asked this question a bit earlier this month, but it was
Pat> in a message specifically on modified 8880's and I thought a more
Pat> descriptive title might get more response. Has anyone ever added
Pat> 9-v motors to an 8880 and gotten it to move? I have 2 of the new
Pat> gear-motors (bought specificaly (sic?) for this purpose in mind.
Pat> I would appreciate any and all info.
I would think that this is very hard. There is a lot of friction in
the drivechain for the 8880. Some of this may be reduced by careful
alignment of gears (especially the ones on the chain) and such, but a
lot of is appears to be caused by the linkage used for the wheels. I'm
working on a model that uses the wheels and such from the 8880 to get
four wheel drive and steering (no suspension), and that, too, has a
tremendous amount of friction. One of the new-style motors, geared
down a _lot_ can make it, well, crawl.
I haven't seen any info on the net from someone who has actually
managed to do this. Of course, just because it hasn't been done
doesn't mean it can't be done.
Pat> If it makes any differance, my 8880 has a 12-cylinder engine
Pat> (removed the "top" steering to make room for it) and I had to
Pat> modify the chain linkage to the transmission, but there is very
Pat> little slack in the chain (enough for free movement, no
Pat> slippage). I soon will be replacing the grey/grey engine with a
Pat> trans/red engine (thanks Legocorky!) and would love to see this
Pat> beauty move under it's own power!
Hmm, that must look good. :)
Pat> Thanks in advance,
Pat> Pat
Regards,
Johannes.
--
'Codito, ergo sum - "I code, therefore I am"' -- raster@redhat.com
<insert funny description here>
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Message has 1 Reply:
 | | Re: Motor-powered 8880??
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| (...) Right on. Not only that, but the transmission on 8880 is designed to have the motor pushed by the wheels. If you want it the other way around, you'll need to "reverse" the transmission/gear box as well. A bit simplified, you can say that at (...) (25 years ago, 17-Dec-99, to lugnet.technic)
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Message is in Reply To:
| | Motor-powered 8880??
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| I know I asked this question a bit earlier this month, but it was in a message specifically on modified 8880's and I thought a more descriptive title might get more response. Has anyone ever added 9-v motors to an 8880 and gotten it to move? I have (...) (25 years ago, 17-Dec-99, to lugnet.technic)
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