Fergus
Sorry to prolong the debate, but ...
>"most of us mix with a round-tipped spatula on a flat-bottomed
>container"
> Do most if us?
I believe so, Europa provided us with round-tipped spatulas and made no
mention of cutting off the tips. I've seen no builders tips with regard to
cutting off the tips (other than yours), so can only assume that others do
as I do, and use the spatulas as provided.
> Everyone on net is pleased for you - but then your workmanship was
>never questioned.
Yes it was, and I quote from your post: "If one is sloppy in mixing epoxy,
maybe there are other facets to check. Half the error is commendable, twice
the error calls for counselling". I resent slurs such as this from
someone who does not know me, nor the standards I work to!
Lloyd
-----Original Message-----
From: Fergus Kyle <fkyle@bigwave.ca>
Date: 19 November 1999 21:07
Subject: Searching for accuracy
>Lloyd:
> There was no misunderstanding on my part. I somply want to reinforce
>the very positive remarks made by Rowland regarding the quest for
>accuracy. I stand by my response. I too am familiar with system error
>calculation, but I don't agree that one should ignore the consideration
>- particularly when newcomers are perusing the mail. What Rowland said
>was correct - consider the accuracy.
>
>May I quote from your email -
>
>"most of us mix with a round-tipped spatula on a flat-bottomed
>container"
> Do most if us?
>
>"I suspect a lot of your perceived accuracy of mix goes right out of the
>window".
> Some might, I question "a lot of perceived accuracy".
>
>"And my workmanship was laid bare for all to see in the homebuilders
>tent at the PFA Rally "
> Everyone on net is pleased for you - but then your workmanship was
>never questioned. Nor is ours in the main.
>
>"As a matter of record, I do mix vigorously and thoroughly...
>and_always_check the residue in the bottom of the pot after cure, for a
>100% effective mix."
> You are apparently then not "most of us". Se the first quote.
>
>" For good measure, my inspector also happens to be a Vice President of
>the PFA, so he would have much to lose if he were to pass work which was
>not up to scratch."
> All inspectors have much to lose when they pass faulty construction. I
>know of no inspector, no matter how lowly, who does not take great pride
>in his attention to detail. By the way, mine is chief inspector for
>Southern Ontario where about 85% of homebuilds arise.
>
>"..... inspectors on numerous occasions all the way through the project
>... and not just when the build is complete."
> You have the wrong country, Lloyd. Actually Canada is the large
>Northern Half of the continent and has the RAA and AIR-ABA inspectors -
>a meaningless designation elsewhere.
>
> With regard to inspection standards, you might keep an eye out for a
>list of questions shortly to be presented to the CAA concerning the
>standards arrayed against foreign-built aircraft in the UK. That Ivan
>has managed to accomodate the JAR .... and to meet CAA requirements says
>an great deal for his design.
>
> Let's call it a draw, and get on with the build. Don't tell my
>inspector, but I'm still trying to get a blob of epoxy out of my best
>troisers.
>Happy Landings
>Ferg A064
>
>
-----Original Message-----
From: GERAINT L OWENS <lloyd.owens@lineone.net>
<grasingleton@avnet.co.uk>
<europa@avnet.co.uk>
Date: 19 November 1999 00:27
Subject: Re: electronic scales [was: NEW BUILDER - SCOTLAND]
>> Throwing your hands up and saying "it's all pretty inaccurate anyway"
>>is no way to increase accuracy and certainly won't impress any
>>inspector. If one is sloppy in mixing epoxy, maybe there are other
>>facets to check. Half the error is commendable, twice the error calls
>>for counselling.
>
>Hi Ferg, Graham and all
>
>Please don't misunderstand what I said. And my workmanship was laid bare
>for all to see in the homebuilders tent at the PFA Rally at Cranfield 1999.
>At which venue I was rather surprised - but, being human, flattered, to
have
>Europa's Keith Wilson say he'd like to take photos/video of my workmanship
>to show new builders 'how it should be done'. Andy Draper was also
>complimentary.
>
>In saying what I did, I was simply making the point that a chain is only as
>strong as its weakest link. And there's no point in calculating mix
ratios
>to a thousandth of a gram, when we then resort to mixing resin in the way
>that we have to. As a matter of record, I do mix vigorously and
thoroughly
>... and_always_check the residue in the bottom of the pot after cure, for a
>100% effective mix.
>
>Remember also, Fergus, that here in the UK our workmanship is checked by
our
>PFA inspectors on numerous occasions all the way through the project ...
and
>not just when the build is complete. For good measure, my inspector also
>happens to be a Vice President of the PFA, so he would have much to lose if
>he were to pass work which was not up to scratch.
>Regards
>Lloyd
>
>-----Original Message-----
From: Fergus Kyle <fkyle@bigwave.ca>
>Cc: GERAINT L OWENS <lloyd.owens@lineone.net>; Rowland & Wilma Carson
><rowil@clara.net>; europa@avnet.co.uk <europa@avnet.co.uk>
>Date: 18 November 1999 23:02
>Subject: Re: electronic scales [was: NEW BUILDER - SCOTLAND]
>
>
>>Graham Singleton wrote:
>>>
>>> most of us mix with a round-tipped spatula on a flat-bottomed container
>>> (when the
>>> >spatula can't get into the 90 degree corner) for one to two minutes at
>most,
>>> >I suspect a lot of your perceived accuracy of mix goes right out of the
>>> >window. It would be interesting to do a scientific analysis of the
mix
>>> >from different parts of the pot, for a number of homebuilders. I
>suspect
>>> >the results might be a little different from the manufacturers
>theoretical
>>> >ratio. IMHO : -)
>>>
>>> Its always worth checking the residue in the bottom of the pot the
>morning
>>> after. Any swirl marks, or worse, sticky bits means poor mixing. A
little
>>> experience will soon teach you good mixing habits.
>>>
>>> Graham
>>Cheers:
>> Graham has it dead right - check what's left. Of ot ain't hardened
>>epoxy, it's inaccurate. HOW INACCURATE depends on how much you allow to
>>be unmixxed. I cut off the mixing sticks with a bandsaw and rounded the
>>corners in a block so that when a new stick was required, it was
>>immediately available, and REDUCED THE ERROR.
>> Throwing your hands up and saying "it's all pretty inaccurate anyway"
>>is no way to increase accuracy and certainly won't impress any
>>inspector. If one is sloppy in mixing epoxy, maybe there are other
>>facets to check. Half the error is commendable, twice the error calls
>>for counselling.
>>Happ7y Landings
>>Ferg A064
>>
>>
>>
>
>
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