[Customer Support]

The correct bump key gap spacing for tons of keys, schlage, SEGAL, Arrow, Falcon, Eagle, Best, KABA and a ton more..

Check Out:

http://www.dlaco.com/spacing/tips.htm (doesn't work at present)


And then make a back up for everyone to use:

http://www.shortText.com/mhy04

[Pleiades]

Haha, the “we have closed this page” message is funny. Seriously though, I just put old keys that are already cut on a computer scanner along with a ruler. Scan the keys at a high resolution, and then load it into your favourite image editor. Make sure your image editor is using the correct DPI (number of pixels per inch, this should have been shows somewhere when you scanned it) so that the measuring tool will give accurate numbers. Verify this by measuring the image of the ruler. Now you can go ahead and measure the spacing and depth.

[lockman]

Some people learnt nothing from Prohibition.

Are key micrometers and dial calipers next on the list - I dont think so.

[Customer Support]

OK OK....

So when all else fails where do you turn? ARCHIVE.ORG BABY!

http://web.archive.org/web/20050910012217/http://www.dlaco.com/spacing/tips.htm

And then make a back up for everyone to use:

http://www.shortText.com/mhy04

[siggy]

Ok, so help me make sure I'm reading this table correctly: If I want to make a bump key for a particular brand of cylinder, I should make a key with the cuts to a depth which makes the distance from the bottom of the key to the bottom of the cut equal to or slightly less than the value listed as the root depth of the highest number for that particular key?

I work in a machine shop and have spare time at night, so I'd like to be able to knock out a nice little set of bump keys during my spare time, but being a machinist, I like to check my work. Also, how high would you say the peaks should be? 1 or 2 values lower than the root depth? More? Less?

Siggy

[theopratr]

You are reading the charts correctly, sir. The absolute height of the peaks really depends on how separated the individual cuts are... the further they are from each other, the higher the peak you can get away with. For the majority of keys, to get a good angle on the peak (appx. 45 degrees, perhaps a bit steeper) this is achieved by using a depth for the top of the peak that is maybe two values less deep than the final cuts; a 7 cut for the top of the peaks, and a 9.5 or so for the grooves, for example.

Obviously, the best way to find out for a specific key is to experiment. :) If it doesn't look right, it probably isn't, so always cut less than you think is necessary and work your way down.