Well, lets say you have this medeco code for a 5-pin biaxial lock:
2M 1Q 4B 5D 3K
The number in each segment refers to the cut depth, and the letter will tell if the cut is a fore or aft cut, and if the angle is Left, Right or Center. Use the chart below to decode the above code. You can see from the chart below that 2M decodes to a number 2 depth cut, in the aft postion so it is .031 after the center position and it is a left hand cut. Cuts on a medeco biaxial key starts at .244 and spacing is .170. But dont forget that each cut is before or after center line, so you will have to add or subtract .031 to each center line spacing.
2M = 2 depth cut, After Center line (.244+.031=.275), Left Cut
1Q = 1 depth cut, Before Center line (.414-.031=.383), Right Cut
4B = 4 depth cut, Before Center line (.584-.031=.553), Center Cut
5D = 5 depth cut, After Center line (.754+.031=.785), Center Cut
3K = 3 depth cut, Before Center line (.924-.031=.893), Left Cut
And of course you can always work backwards using the chart and your biaxial medeco key. You find your cut depth and fore or aft position by measuring the key with calipers or with the key decoding tool from medeco. And if you hold the key bow with the key blade facing away from you, place an imaginary ball in each cut, and if the ball rolls to the right, it is a right cut, and if it rolls to the left, it is a left cut, and if it doesn't roll, than it is a center cut. From the information you gathered and the chart below you can determine that a #2 Left cut in the aft position is a 2M pin.
I believe cut depths for medeco biaxial keys are:
1 = .272
2 = .247
3 = .222
4 = .197
5 = .172
6 = .147
. Look at the top of the key so that the tip is pointed foward and the blade is looking up. If you were to drop a ball bearing onto the cut, which way would it roll off. If it rolls to the left it is a left cut, right to the right, so on and so forth. Now that you know what direction, Take the key and put it into the empty plug and start at pin opening one. Look down the hole to the cut and see if the cut itself is at the bottom or top of the hole. If it is at the top, it is a aft, if it at the bottom, it is a fore. Now all you need is the depth and that is easy. After determining 1 or 2 pins, it will come natural to you.
