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2012年10月16日 イイね!

Non-routines

Non-routinesFire broke out in my neighborhood last night just before falling asleep in my home, several filter fire tracks rushed around our residence with playing loud sirens. I couldn't sleep after the affair being suffered from hustle and bustle as a matter of fact. The colder season requiring heater brings some dangers of fires. Better take care for fires.

Two telegraph poles were settled by the Kansai Electric Supply Company in the neighbor of our laboratory this early morning, because some high power wiring are changing following the Public Works and Development Hankyu Rail Way Station. I would be suffered also here all day long today by some noise and vibrations, how come?

Wild species of morning glory in the garden is still in bloom in this colder temperature around 15 degree celcius, this is a most unlikely phenomena, so peoples in neighbor say, this might be caused by any abnormal weather?
Posted at 2012/10/16 08:33:06 | トラックバック(0) | 日記
2012年10月15日 イイね!

Interesting wheel alignment

Rear total toe and it's vector direction(thrust angle) were adjusted on VW1302 Super Beetle yesterday by means of precise measurement with some special horizontal scaling tool equipped with LASER pointer.
Precise procedure brought a completely different driving taste on earth proving that the steering reaction is the most influenced by rear axle constructive axle geometry and wheel alignment. In another words, I might change the driving taste of any automobile in any way I want by adjusting of constructive axle geometry and wheel alignment adjustments.
As we know the running direction of an automobile is dictated by the rear alignment vector angle, so to speak thrust angle, this fact is easily imagined if we remember that a fork lift steers by means of rear wheel control. The error on thrust angel is adjusted by the driver in ordinal passenger's car. We must pay attention here on the point that the frontal axle is so designed as to be adjusted keeping forward automatically, this physical construction is called as self steer effect. The phenomena of this correction has an innate habit to reverse at the speed of 60 km/h, the steering habit changes into different direction.
Though I cannot explain why the clicking point should be at 60 km/h, the elements of caster, SAI, scrub, camber setting should have deepest relations with the phenomena. Thrust angle error is correct by the action of a driver as it is below 60 km, but above that speed too much self steer effect is exerted, so the adjusting direction on the steering wheel reverses. This truth and fact are not so common even among professional engineers. I would try to know how this reversing phenomena happens and to explain from an academic physical point of view.
Posted at 2012/10/15 08:06:51 | トラックバック(0) | 日記
2012年10月14日 イイね!

Rear toe adjustment VW1302

Rear toe adjustment VW130212 of 19mm bolts were loosened and re-tightened to arrange wheelbase values of VW1302 Super Beetle today. Ugly toe-out condition was observed after precise measurement inviting a LASER equipped special tool. Unavoidable muscle work as it was to correct the error in the wheel alignment, completely different driving taste was obtained, just I was rewarded in exchange of some back muscle pain. Though toe-in setting and it's direction, thrust vector direction was established, total toe value is not measured because of time limit today, also my concentration capability has ruined after that.
Steering reaction has remarkably improved as to take it like a different one. Improvement on my Super Beetle would be achieved one by one and step by step obtaining better results than before.
As a planning after the establishment of wheelbase values on both side, thrust angle would be adjusted by lateral offset displacement on frontal axle constructive geometry, because the thrust is fixed by total toe adjustment keeping similarity of wheel base values on both side.
Posted at 2012/10/14 16:25:41 | トラックバック(0) | 日記
2012年10月14日 イイね!

Leica as a honor

Leica as a honorThe name plate shown here has been hung so long as for half a century on the wall of well-established Leica shop at Shinsaibashi Namba in OSAKA. Most of the managements of the store had been mainly done by some noble and sophisticated lady called as not "TOKYO Rose" but "OSAKA Leica", the very name plate is now at my hand! Leica is female noun in Germany.
The shop had been continuing to deal only Leica but nothing, all the competitors in OSAKA were at a loss how could she do that with specializing Leica bland only? Overcoming several difficult period of times caused by some domestic economical variations, she could keep her own concept, "Leica".
Anyway she had been dealing only regular imports from Germany and Canada Leitz Company. Her dealing concept must have been based on her innate Prides and Self-esteems for over 50 years of period. Such kind of woman with a resolute as she is, the Leica shop in Daimaru Shinsaibashi was closed on the beginning of this year, because of some her health difficulty influenced by age.
She gave me this marvelous and treasure like name plate for the sake of long term relationships.
Posted at 2012/10/14 06:47:14 | トラックバック(0) | 日記
2012年10月13日 イイね!

MD-W 35/2.8 modifed

MD-W 35/2.8 modifedOld Minolta SLR lens MD-W Rokkor 35/2,8 has modified to adopt on Canon Eos Digital body successfully. 35mm focal length is convenient for utilizing on APS-C image format as a standard lens. 1 to 2 step iris closing from opened aperture 2,8 could obtain an excellent transparency without any complaints. There is no room to compare with any variable focal length designed zooming lenses. As I have never come across with zoom lens that has some superior performance to my favorite fixed focal lenses, I had already thrown away all of them from my stock even French made Angeniex for Leica Flex. There is no argument in my mind on this decision, because I mobilize my automobile with full fuel tank getting up before dawn praying that I could have good pictures. Actually, tremendous energy is consumed to obtain some good results. I want to have the best equipment if I shoot at the decisive moment over the fate.

Though I'm keeping several old MD Rokkor lenses, the flange back distance value 44mm was the barrier to modify them to suit on Canon Eos body with 44,5mm flange back design meaning that impossible to do that physically. But, deeper consideration on a ignorable 0,5mm distance to interfere focusing at Infinity position led me to an imagination! Any production lens has adjusting construction design to adapt to the decided standard value, so anyone should have some preparation distance and that might compensate the discrepancy of 0,5mm!

I have just proved that my imagination was to the point after arranging and modifying old MD-W 35/2,8 on Canon Eos mount on earth! Separating Eos lens cap made of engineering plastic and adhering on Minolta bayonet flange procedure were not not so difficult task for me comparing with hard and heavy works in an automobile maintenance.
Methyl-metha-acrylate self curing resin was applied to adhere plastic bayonet construction onto lens original flange being utilized as it is on the body flange. Thanks with special materials to combine metal and plastic materials together, 4-Metha, tight and solid coupling was established with any vulnerability. Of course lens rotating stopper pin hole was engraved on the lens flange surface at adapted position.
Now I have a good information from today's task that all the old Minolta MD lenses are capable for the modification using the same procedure as today including already modified Leica lenses set in Minolta lens cylinders.

I've checked both Canon 5DMk3 and 6D actually especially on finder qualities as a next equipment, the choice of 6D has eliminated completely in my mind, however lower price was set on 6D. I should realize before doing that, the smaller pent-prism case with equipped strobe light system together in it means considerable impossible in designing good finder.
Smaller and lighter are not always the requirements to select some favorable equipment if it is some amateur use.
Posted at 2012/10/13 18:59:29 | トラックバック(0) | 日記

プロフィール

「Difficulty in the establishment of wheel alignment http://cvw.jp/b/139985/46096876/
何シテル?   05/10 07:44
Kineboh! It's me!
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