HelpfulLockPicker has made nice unboxing video.

Hello, I would like to thank HelpfulLockPicker from USA for his great unboxing video. You can watch it here:

Please share this information widely. I like to share the new Polish Combination Lock mechanism with people. It is worth to think of it and understand its strong and weak points. I think the best way is directly through lock sports community.

I am working now on full metal prototype. This new mechanism will be examined by best in class people from sport lock community. The goal will be to find any weak spots before final design and production.

I am waiting for HelpfulLockPicker in-depth review coming soon.

Please stay tuned and do not forget that you can donate and support me.

Small combination padlock goes to Swynndla.

Hello , this time small combination padlock with Polish Combination Lock mechanism inside is going to Swynndla for next review. This small padlock has very similar construction to previous lock however it works very smooth. You do not need any force to rotate the knobs and almost zero force needed to open it. It will be nice to see Swynndla opening this small padlock. It has in theory only 10 000 combinations but here due to 3D print limitations is only 1250 possible combinations therefore it is quite easy to open even going one by one.

small combination padlock
Small combination padlock
Small combination padlock presentation

Swynndla however will not go “brute force” but as in previous lock he would like to find the way to decode it. This is not 7 days challenge rather I asked Swynndla to do everything in front of camera since he unpack the lock till the final opening. In theory he should open it in less than one hour by going all possible combinations. I hope he will show his attempt and share his video with us.

The goal for me from Swynndla next review is to find out how ease is to operate this padlock. User experience of holding it and operate is the key for me to understand if anything should be improved here. Of course the numbers in metal version will be much more visible here the visibility is rather limited. This is no issue for me now. The most important is ease of operation and overall feedback. I hope Swynndla will like it as comparing to previous model this one operates without any force needed.

This small padlock has Seeger mounting ring (steel one) inside instead of the nut. This means Swynndla will not be able to change the code after opening it while special tool is needed to remove so small Seeger from the central shaft. Therefore fun is only one time game for him. I am very much interesting to see his impression about this small padlock and most important the user experience from operation, it will be all time pleasure because everything is working there without any special force needed.

This review would give me additional hints towards full metal prototype.

Current metal project assume that first full metal padlock will have 10 x7 knobs = 10 000 000 true combinations (each knob could be rotated 10 times to change the code).

I think that this time laser method will not works because of the size of this padlock but we will see soon what Swynndla will do with it.

Finally I have added some final words in my Next Step article:

Final Word added in the end – please read and draw your own conclusion.

My YouTube channel:

More information about this small padlock:

Polish Combination Lock decoded by Swynndla.

11 July 2019 Swynndla has decoded my lock mechanism and therefore the challenge is over. You can watch Swynndla video where he explains how he decoded my mechanism. I would like to thank Swynndla for his participation, his passion and creativity in decoding. Here is his video:


The mechanism has been decoded by Swynndla using a laser. In my thoughts section I have written what I think about it. I like to invite you to read the article “Next Steps“.

The global decoding challenge began in New Zealand.

The Polish Combination Lock has been delivered to Swynndla.

He made his first video:

Next round of worldwide decoding challenge just started. Swynndla has now 7 days for his decoding attempt. Good luck!

More information about global decoding challenge you can find here:

Please help Swynndla if you have any idea how to decode my combination lock. You can write your comments under his video.

Metal version of Polish Combination Lock

I am working now on full metal version of my Polish Combination Lock mechanism. Here is first concept visualisation. 4×15 code complication, 80x60x30mm body. More details will come soon. Still waiting for some feedbacks before final design.

Metal version of Polish Combination Lock
Metal version with closed 10mm shackle

Polish Combination Lock has been sent to New Zealand and USA.

Today 17 June 2019 PCL has been sent to Swynndla to New Zealand. We are waiting for new video coming soon on Swynndla channel (Pre-review).

I also want to thank HelpfulLockPicker from the USA (here is his channel: for making a review of my lock. HelpfulLockPicker does not take part in the decoding challenge, however, he agreed to review my lock. I sent HelpfulLockPicker today my lock (white version, this one: ) for review. He can play with it and have already the correct code inside the envelope for review. This is great help from him to make it visible on the market. I would like to ask also LockPickingLawyer later for such a review without participation in decoding challenge. This is important to show to people new mechanism and to make it visible on the market.

Next decoding challenge request from New Zealand.

Hello today 14 June 2019 I have finally received my lock back from Priyer. Meantime there is no contact with him so I do not know what is going on with him now. I hope he is ok and will publish his review soon.

Now, I like to welcome new participant Swynndla from New Zealand. He is very good in opening combination locks presented on his channel here:

Now I will prepare new combination set up and will send my Polish Combination Lock to Swynndla on Monday. I hope he will enjoy decoding my mechanism and he will make nice video from the try as well with final review.

Next worldwide decoding challenge will start soon. Lets stay in touch.

Priyer’s final review. Update 10.06.2019

Due to his illness, Priyer could not perform the Polish Combination Lock evaluation video earlier and present his results. Now he is healthy and promised to publish the review video in coming days. I wish him all the best and a lot of health.

UPDATE as of 10 June 2019. Nothing , no contact from Priyer. What is going on? No idea. We can only wait until he will respond somehow.

UPDATE as of 03 June 2019. Still nothing, no contact with Priyer, very strange I hope he will make the final review and send my lock back.

UPDATE as of 25 May 2019. I do not know what is going on with Priyer now, no contact. I have sent many e-mails with request for information why he didn’t made the final review of my Polish Combination Lock yet and how he is feeling now. I have no idea, no info back what is going on and why he didn’t reply. Still waiting for his final review and my lock to be send back to me. Without my lock I cannot continue this challenge so I hope Priyer is ok and will send it back to me soon.

If you have any contact with him please ask him what is going on. Thank you.

We are waiting for Priyer’s final review.

Hello , we are still waiting for the final review Priyer should do. I hope he can do it soon (we certainly waiting now too long) and I will be able then to announce next participant.

I hope Priyer can send back my lock ASAP after final video will be made.