Zeiss key with skewed fluting

[Growster]

I just post this for fun, I have never seen fluting asymmetrical to the blade.

I will not follow up on this with Zeiss in Berlin. They are always a little awkward in that they confront me with enormous distrust right from the start, because I dare to ring them from a foreign telephone number. Their sort of localness and protectiveness is astounding for Londoners.

[Auto Key Wizard]

From the image it seems the fluting is true and 90° to the bow, although the back side of the blade is tapered to match a taper in the keyway broaching.

If the fluting was asymmetrical to the blade, The key could never be fully inserted in the keyway.

[Trev]

Hi,

I've rotated the image to make the edge of the key vertical and marked the centre of the key (by pixel count) with an X, along with the left hand side and right hand side of the key.

I've also marked an X equidistant either side of the centreline on the bow.

As the centre of the key aligns with the centre of the bow when the key is vertically aligned with the edge of the key it must be the fluting that is misaligned as Growster has stated.

The second image shows the same process, but this time aligning the key vertically with the fluting, however this time it can be seen when an X is marked equidistant either side of the bow it doesn't line up, again showing that it is the fluting that is misaligned.

Best Regards

Trev

[Count Muppet]

Think that’s just excessive wear to the bottom of the key blade

[Auto Key Wizard]

I understand whatyour saying Trev,

Okay the the fluting is parrallel, but bow is ofset, I still reckon the taper on the spine is matched to a taper within the keyway broaching

[Auto Key Wizard]

2 minutes ago, Count Muppet said:

excessive wear

So where is the excessive wear on the rest of the key?

The bow is in excellent condition, the cuts are good too!

I believe the spine to be as factory designed

[Trev]

It looks like the cuts are relative to the fluting rather than the bottom of the key (right hand side in the image).

As you say it could be intentional, maybe to make it more difficult to copy, in which case the keyway broaching may not necessarily be tapered, only needing to be wide enough to fit the widest part of the key.

[Count Muppet]

Yeah you’re probably right.

I guess if it was wear, then the pins may get caught at 180 degrees?

[Amlocks]

Think I have a display model of this lock, definitely at an angle. Very strange thing, will try to find 

[nxasdf]

Looks interesting, and looks like a deliberate design. Not sure what would be the benefit of it other than making key duplication a pain on some machines that are spine-true but still wouldn't take long to fix it.

[EST]

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