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Subject: 
Re: Site updated
Newsgroups: 
lugnet.technic
Date: 
Mon, 20 Aug 2001 14:25:06 GMT
Viewed: 
2136 times
  
"Fredrik Glöckner" wrote:

I think so too!  I think it is generally better to use the ungeared
motor for applications where you need a quickly spinning thingey.  For
the small compressor, I usually gear the ungeared motor down using a
rubber band and the large pulley, and it is able to drive the
compressor fairly efficiently.

I think this is the ideal ratio, probably similar to the 1:5 gearing I
used by using an 8 tooth onto 40 tooth gear which coincidentally fits
into the same space as your pulleys. I found that using gears instead of
pulleys made the compressor even more efficient but you really have to
use a pressure limit switch in this case to avoid stalling the motor.

Plus, the ungeared motor actually has a higher power output than the
geared one!  At least that was the conclusion of Chris Moseley when he
tested them.

Do you have a link to this test, it sounds pretty interesting?

BTW, Jennifer, your post has many long lines, up to 80 characters.
This is only indended as a friendly hint, I do not
mean to critisize you in any way!

No worries, I'd prefer you to point this out rather than me going on
looking like an eejit :-) The odd thing is that I have told my newsreader

(Netscape 4.73 running on FreeBSD) to wrap the text in outgoing plaintext

messages to 72 columns, and yet it doesn't appear to do so. Very strange.

Jennifer



Message has 1 Reply:
  Re: Site updated
 
(...) Sorry, I think it was just something in my mail correspondence with him. He used to have the motors connected to an amp meter, to check for stalling and so on. He compared the power consumption of each motor type under various loads, and (...) (23 years ago, 20-Aug-01, to lugnet.technic)

Message is in Reply To:
  Re: Site updated
 
(...) I think so too! I think it is generally better to use the ungeared motor for applications where you need a quickly spinning thingey. For the small compressor, I usually gear the ungeared motor down using a rubber band and the large pulley, and (...) (23 years ago, 20-Aug-01, to lugnet.technic)

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