Today's Message Index:
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1. 06:11 AM - Re: Cutting process and accuracy (womenfly2)
2. 07:57 PM - Spring in a can landing gear! (Steven Dortch)
Message 1
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| Subject: | Re: Cutting process and accuracy |
Watch this one:
WF2
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Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=470149#470149
Message 2
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| Subject: | Spring in a can landing gear! |
Well, I have made the Spring in a can! It was about as described, but it
took a better welder than I will ever be. I took it to a shop that does
anything welding, from big oilfield rigs to old lawn mowers and golf carts.
the boss said he wanted to do this job and told me that my design may fail,
but his welds won't! He built it exactly as I described and made great
improvements. We compressed the spring in the shop by putting the 1 inch
tube in a vise, and three big old boys would pull it down while the welder
tightened the vise to hold it.
I put end rod bearings (Heim) Bearings on both ends. I like the idea of
adjustability. I bought them at a local hot rod shop. The 5/16th bearing on
the bottom looks and feels hell bent for strong. The 1/4 inch on the upper
end may be OK but I don't know the load rating. So for $20 I am going to
get some end rod bearings that have a high load rating. FK or Aurora brand
most likely.
Once we were finished, one set would flex just a touch if you pushed the
rod back and forth, but the other felt rock solid. I think there was just a
bead of slag inside pinning the spring. So today I put a chain on each end
and chained them to the tow hitches between my explorer and old suburban.
My grandson had it roll forward to flex the setup. It got about 1.5 inch of
flex on both of them. Now both feel like they are free. You cannot compress
the spring by hand and I was glad to see them move between the two trucks.
I was afraid I had made a solid rod!
I wiped it off with denatured alcohol and sanded it. Then I primed it with
Rustoleum Self Etching Primer. Tomorrow I will rattlecan paint it with
Rustoleum automotive gloss enamel.
I have been teaching ground school at a local flight school (for pay no
less!) and work has been getting in the way of getting out to the hangar to
work on the Piet.
--
Blue Skies,
Steve D
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