LEGO TECHNIC : 12815


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Subject:	Instant Mini Air Compressor using RC Buggy Motor
Newsgroups:	lugnet.technic
Date:	Sun, 20 Jun 2004 13:32:36 GMT
Highlighted:	(details)
Viewed:	2315 times

Here’s an instant mini air compressor you can make if you have the 8475 RC Buggy motor.

Using the inner motor output shaft, the geometry is just right for full compression of the small pump. It runs like blazes and was able to drive my 2-cylinder engine effortlessly surpassing Ralph’s improved double-acting pump.

Free running, the inner motor output shaft turns at 1540-1580 rpm. With the mini pump unloaded, it runs at 1440-1460 rpm. And with the mini pump driving the 2 cylinder engine, it runs at 1320-1340 rpm.

I reckon it will serve as the new benchmark for pump testing.

--

C S Soh

www.fifth-r.com/cssoh1

...where air is power

Message has 2 Replies:

		Re: Instant Mini Air Compressor using RC Buggy Motor
(...) Doesn't your pump get warm at that RPM? When I tried this I eventually ended up with permanent pump damage, where seals no longer could provide high pressure. Kevin (20 years ago, 20-Jun-04, to lugnet.technic, FTX)

		Re: Instant Mini Air Compressor using RC Buggy Motor
(...) My humble apologies. I forgot to complement you on the elegence of the design. Kevin (...) (20 years ago, 20-Jun-04, to lugnet.technic, FTX)

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