March 19, 2017

Kenmore Sensor Sew 100 (1980s)

Necchi made the classic mistake of shooting too far into the future, but I love it.
It had real potential, they almost got it wright, it is a little reminiscent of the Lotus, maybe they were trying to get into the MoMa too.
Necchi Logica 592 by Ital Design Giorgetto Giugiaro Noted here.
Pictures from my copy of Giogetto Giugiaro The Genius of Design, given to me by my older brother.
I actually met Mr Giugiaro during a design review at the American Motors Design Studios in about 1988, when we were working on the Coupe version of the Eagle Premier. I was in Advanced Vehicle Engineering at the time working for Marcel Marchond, Delbert DeResse, and host of other good Engineers

This one (like many?) seems to have had little use. FYI the reverse switch definitely needs a tactile component to it; you simply HAVE to look at it to press the correct spot and so take your eyes off of your work.
I see it a little like my beloved Custom Imperial in that the Engineers were to drunk with the concept to accept real world usage/testing; the concept is great but just a couple of details could have been improved with a little user feedback.

When I got it home it did sew but the stitch length could not be changed, even though the digital readout was showing the change.

I decided to "go in" and see what was under the bottom cover and discovered that the feed dog mechanism was frozen, I freed up the mechanism and have full control restored. Without the stitch length working the reverse did not work I of course thought that the computer was going to be the problem but it was just 1980s frozen sewing machine technology. Remember not to oil the plastic parts.
The only thing so far is one of the one of the LED numbers has burnt out.
Trying to figure out if it has needle stop position and L-R-C?
I did get the ZZ working.
I actually drove several of these things as lease cars at Chrysler, they were big, and nice to drive.

So after using it for just a little while the the presser foot mechanism slowly froze up!
The pivot shaft had the original grease on it and it nearly stopped move all together.
I opened it up but it was so frozen I could not get the shaft out.
I worked it back and forth and remembered some of the test fixtures from work so I made this little device to move it.
I assembled this little geared drive assembly and hooked it up to the lever, truth be told the over night sitting with oil made a difference but I was able to make a 1000 back and forth cranks on it while cleaning up the shop.

All is well with the presser foot now.

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