Maximum possible security level build in PCL.

Here is maximum security version of Polish Combination Lock.

Metal version with key.
Anti-drilling parts in green.
All green parts will be made from hardened steel
All green parts will be made from hardened steel
All green parts will be made from hardened steel

Anti-drilling parts:

There will be few parts made from hardened Steel HRC 70-75 (equivalent of HSS Steel used to i.e. drill bits, cutting tools etc.)

  1. Cylinder cover internal wheels (pressed inside the body with hydraulic press).
  2. Back plate cover all mechanism
  3. Actuator
  4. Dead-bolt locking the shackle
  5. Shackle

Main features:

  1. 9 765 625 combinations (all available)
  2. Magnetic joint Moon Gear (anti tension unit)
  3. 5 combo wheels with 25 letters each
  4. Central lock in Open Close knob (optional)
  5. Anti-drilling security plate and cylinder (HRC 70-75 steel)
  6. 12 mm closed shackle
  7. Both sides locking mechanism (two points of locking the shackle)
  8. Both directions code setting (left, right)
  9. Code can be changed by the user (without limits)

This is most secure version of PCL available.

Why so secure?

  1. You need to pick each time the central lock in order to check one code.
  2. It is not possible to efficiently tension by any method.
  3. It is not possible to shimming.
  4. It is not possible to feel any true gate.
  5. It is not possible to drill it and check the gates.
  6. You can check only one code at the time.

Normal opening procedure:

  1. Enter the key (in this stage all wheels are blocked)
  2. Rotate key conterclockwise (rise Actuator)
  3. Set the correct code
  4. Rotate the key clockwise (Actuator is going down)
  5. Rotate whole wheel pack clockwise
  6. Remove the shackle

Closing is reverse order.

Cheers, Zbigniew

When perfect is not enough…..

Hello my friends, I have new idea how to in certain cases lift this already perfect solutions level up in term of security. I have question to you more experienced lock experts, what if…..

What if we will made small mod to this Polish Combination Lock based on build in small traditional lock (tubular, pintumbler or any other). Can you imagine for a moment that we will treat Open Close knob as plug and the masking part as a case of this lock?

The masking part will have such a shape that it will not rotate at all. It will be fixed in the body of this padlock. There will be key hole in front of the open close knob and lets say 5 pins lock any type is proper here.

In order to rotate the Open Close you will need to insert the key and then after setting proper code just rotate and open. This additional lock could be very simple lock , chepest and simplest on the planet.

The beautiful part is that the attacker will need to pick this lock any time before checking the one code. In our case almost 10 000 000 Times picking :). This solution will protect this mechanism even more than now it is protected already with all features.

Of course this key lock will be additional option we will not replace any features like magnetic joint etc. All the previous features remain as on this video.

So the mod needs 1. Changing the masking internal shape, not full rounded but mounted in the body. 2. Adding some kind of small lock using OpenClose knob as Plug and the masking as the case of this lock.

This solution will rise this mechanism to TOP NOTCH and so secure that all attackers will not start even the picking. If you will know that each time you like to probe the code you need first to pick this small lock then you will not try it I think.

I need your help here to understand which type of lock should be mounted there as an ultimate security option. Thanks again for your feedbacks, Zbigniew

PS. This mod is just in the future locks maybe in doors and safes. Additional benefit of such a mod is more secure integration of the OpenClose with the rest of the lock.

What about laser atatched option then…? Hmmm

As you can see now sky is the limit for us…..

Metal version of PCL

Here you can find information on the progress of production of the all-metal version.

27. SEPT.2019 first part production

Below first PCL wheel ever created in metal 🙂 Success! We just started, it will be long long story…..

first metal PCL wheel ever created

Swynndla has published his first video.

PCL 10 000 000 combinations in the hands. of Swynndla.

I am very glad that the lock has been shipped so quickly. Now Swynndla has 7 days for playing with the lock and try to decode it using all methods he wants including cardboard and laser beam method.

I am pretty sure he will have fun and will check carefully if this time the upgraded mechanism is really decoding proof. In this case with 10 000 000 unique combinations really doesn’t matter if this is 7 days or more. Here is important that Swynndla can check new design and “make certification” of the security level of this lock.

As he mentioned in this video the lock is very scalable and it can have 7 or less wheels but in real world the attacker will rather try to open using brute force and destruction instead of decoding.

This is exactly my goal to design the lock that can be open only by destruction. That is pick and decode proof.

This is important as if this will be true we will have one of the most secure solution available on the market soon.

I wish Swynndla good luck as he has most experience in decoding my design. I am waiting for final review and judgment.

Cheers, Zbigniew

PCL combination lock is now in USA.

Polish Combination Lock (white version) is now in USA and HelpfulLockPicker just received it. He will made his review very soon. HelpfulLockPicker is not participating in worldwide challenge. He received also the correct code in the closed envelope so he can play with my lock and then open it and show the inside. I would like to thank him for supporting me with his review and I am sure it will help to share this information and increase visibility of this unique mechanism.

Combination Lock sent to USA.

Please do not pay too much attention to current design. Concentrate rather on mechanism and pros and cons about PCL combination lock mechanism.

Please visit my YouTube channel or watch more here.

Polish Combination Lock just arrived to New Zealand.

Polish Combination Lock will be soon converted from printed 3D model to full metal production version. Please share this information widely.

Polish Combination Lock is now delivered to New Zealand, Swynndla should receive it very soon and next round of the challenge will start. HelpfulLockPicker (USA) should receive PCL as well very soon and his review we will watch very soon too.

I am very close to start 100% full metal prototype it is possible maybe next month depends on funding. If you like to see it very soon please donate any funds by clicking on green mark on the right side. After first production I will send metal version for review, certification and then I will start mass production. Polish Combination Lock will be available as the padlock with close 10mm shackle and will be soon in my e-shop. I will ship it worldwide. The e-shop will be available soon. Stay in touch and share it widely please among your friends. People who donate and contribute to this development will have priority to purchase this unique padlock.

Moreover all people who donate more than 100PLN or 30USD or 25EUR or 20GBP would have personal engravings on the body and my signature and the rest of people who donate less funds will have nice discounts as well.

The final price of this padlock will be set after certification and initial production.

The first production will be very limited because the mechanism will be produced with extra precision and very small tolerances +-0.01mm. I cannot tell you more at this moment. This will be the most secure combination padlock ever created in my opinion. You can subscribe my YouTube channel to be notified when the new padlock with Polish Combination Lock will be available. The operation will be smooth and easy and the precision will be incredible. The size of the padlock would be most probably around 80x60x30mm. It will be very similar to this image but it will have most probably 15 numbers per knob:

Polish Combination Lock
Combination Lock

Polish Combination Lock – statistics

Hello, I would like to thank you very much for your interest in my unique Polish Combination Lock mechanism. There are almost 30 000 unique visits so far here on my web page.

Here is the world map with all those countries marked (blue). Please share my web page with your friends. Please check my YouTube channel and subscribe.

Polish Combination Lock world-wide visibility
Over 30 000 unique visitors from over 112 countries explored my web page

If you like my Polish Combination Lock please donate any founds for further development: or click on right green box.

Check nice piggy bank for your child here.

Pre-review video from Swynndla (New Zealand)

Hello, just few moments ago Swynndla has published wonderful pre-review video of my Polish Combination Lock. I like this video very much and the energy and hope to decode my lock by Swynndla presented there. Good Luck!

Swynndla is going to decode it soon and now he has asked people around the globe to share with him any ideas how to approach it. Please help Swynndla with your ideas. This is very important to test as many ways as possible to be sure that this mechanism is so secure as I think it is. I would like to thank Potti314 for his contribution and wonderful explanation of the mechanism and disassembly process.

Please do not pay to much attention to design this is just basic example. Please concentrate rather on mechanism itself and the working principia which is very unique. The body design and the final shape could be completely different because this mechanism is highly scalable. I am sure Swynndla will make wonderful next review video so please stay in touch.