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GENERAL => CZ Gunsmithing => Topic started by: romukom on August 09, 2015, 08:58:34 AM

Title: CZ Action Timing
Post by: romukom on August 09, 2015, 08:58:34 AM
A lot of you are curious of how most CZ 75 series pistols works.
In my case, I finally understood how a CZ pistol works from reading a lot here.
It is true that pictures says a lot. However if you can animate it, is even better to fully understand it. I  found a animation but did not show the details. So, I decided to make my own. It is not perfect, but at least gives you an idea how it works :)
NOTE: I have slowed the GIF so that you can see it better

Edit:
8/17/15 
  Updated versions and added CZ 75B SA single action only cycle.

8/18/15 
  Minor update to correct some minor mistakes.  Image resized
2/17/17

  Major revision due to a major mistake on the animation. See post #41 for explanation.
  Added CZ P09 Pistol
  Added a Close up and simplified version of the  Omega trigger action

2/18/17
  Added a Close up and simplified version of the 75B trigger action

2/22/17
  Uploaded the animations from other image host.

2/26/17
  Updated version of Close up and simplified version of Omega Trigger Action.

1/26/18
  Added CZ Scorpion Evo 3 S1.  Full and close up version.
5/19/19
  Added CZ BREN 805 S1 Pistol.  Full and Close up version.



(http://i.imgur.com/qYfWlpl.gif)


(http://i.imgur.com/gHEtY4j.gif)


(http://i.imgur.com/jlbSuqk.gif)


(http://i.imgur.com/8Hr8RU4.gif)


(http://i.imgur.com/nI0jCA4.gif)


(http://i.imgur.com/hOTTfIo.gif)


(http://i.imgur.com/dcn7t8M.gif)


(https://i.imgur.com/G9RTsxV.gif)


(https://i.imgur.com/PZWvfX9.gif)


(https://i.imgur.com/Ia5YN0r.gif)


(https://i.imgur.com/a0JtqHw.gif)
Title: Re: CZ Action Timing
Post by: Stuart on August 09, 2015, 09:35:31 AM
Thank you. that is very informative. appreciate you work on this.
Title: Re: CZ Action Timing
Post by: romukom on August 09, 2015, 11:11:35 AM
No problem.  It is my intent to share it so that the first time CZ pistol owners can understand how it works.  To be honest, I cheated a bit when I found the "old" armorers manual that shows part of the cut out view.  The rest was from pictures and scaled to match the work.
Title: Re: CZ Action Timing
Post by: AZ_CZ on August 09, 2015, 11:24:58 AM
What magic spell is this?!? The picture is moving!

(http://i120.photobucket.com/albums/o173/mesabill/image_zps95e6555e.jpg) (http://s120.photobucket.com/user/mesabill/media/image_zps95e6555e.jpg.html)

This needs to be a sticky in the gunsmithing section so we can tell future generations that it's the dark blue thingy not the red duhhicky.

I am in awe of this kinda a stuff, great job.
Title: Re: CZ Action Timing
Post by: nicky on August 09, 2015, 01:01:46 PM
Nice job
Title: Re: CZ Action Timing
Post by: terry mc on August 09, 2015, 02:28:25 PM
Great GIF's
You really sill help a lot of people understand that would not otherwise.
Title: Re: CZ Action Timing
Post by: coolbox on August 10, 2015, 03:30:33 AM
Excellent share! Thank you. But you missed an important member of the CZ family..the CZ 75A..
Title: Re: CZ Action Timing
Post by: romukom on August 10, 2015, 07:24:27 AM
You mean the original CZ 75?  If it so, well is there since I used the original armorers manual cutout view as a base of the work.  :)
(https://lh3.googleusercontent.com/-KUwdEeH5JjU/VciJwkAwF6I/AAAAAAAAAO8/MvRL7AwxpfM/s338-Ic42/original%252520cutoutview.jpg)
Title: Re: CZ Action Timing
Post by: coolbox on August 10, 2015, 07:46:26 AM
I meant the cz75 Auto ...
Title: Re: CZ Action Timing
Post by: romukom on August 10, 2015, 02:21:53 PM
Ahhh I see.  That would be fun to do if possible   8)
Title: Re: CZ Action Timing
Post by: Tok36 on August 10, 2015, 07:21:16 PM
Thank you for the animations romukom. They will no doubt come in handy.
Title: Re: CZ Action Timing
Post by: 1SOW on August 10, 2015, 07:50:02 PM
Thanks,  and good job.
Title: Re: CZ Action Timing
Post by: romukom on August 17, 2015, 01:44:28 PM
Updated version posted in the first post.

As you can see, I added a bit more detail and some bit more realistic look.

I added the 75B SA model going through the cycle. This one was a bit harder to deal with because no matter what I did I could not get SA to reset.

I modified the shape of the trigger bar humps, the sear. Another variable was the SAO trigger in which the hole location is a bit different. After working for about 3 hours it did occurred to me to move the notch in the slide 2 or 3 mm towards the back. This is what fixed the issue.

As you can see, I was being a virtual gunsmith. :)
Enjoy :)
Title: Re: CZ Action Timing
Post by: mada on August 17, 2015, 02:27:51 PM
Your pictures have answered many questions for me.

Many thanks. (And pictures ARE worth 1,000 words :) )
Title: Re: CZ Action Timing
Post by: romukom on August 18, 2015, 08:21:21 AM
Thanks, glad that these have helped you.
Minor update to correct some mistakes.  Images are larger
Title: Re: CZ Action Timing
Post by: llh1956 on August 19, 2015, 11:03:50 AM
This makes understanding the internal workings easier! Great job!
Title: Re: CZ Action Timing
Post by: Scarlett Pistol on August 20, 2015, 01:56:52 AM
I just got a CZ 75 Compact (steel frame, manual safety) and I have been trying to figure out if I should modify the trigger to an amazing SA/DA or SAO. I sat here with the slide removed and a flashlight shinning up the grip and into the frame for an hour functioning the trigger back and forth and replicating the whole firing process over and over to figure this out. All to know what parts I would need and how they all operated together. I thought i had it figured out and then just came across your animated graphics and all my questions were answered in 30 seconds. Wish I had found these 2 hours ago...  >:( Thanks a ton for taking the time to make these!!!!! +100 votes from me for making this post a sticky!
Title: Re: CZ Action Timing
Post by: romukom on August 20, 2015, 08:39:01 AM
I am glad that the animations have helped you.  As far a modifying, a polishing job will make a lot of difference.  If you want to go further, parts from CZ Customs or Cajun Gun Works will do the job.  Both are high quality.
Title: Re: CZ Action Timing
Post by: milq on August 21, 2015, 12:27:07 AM
Nice work!
Title: Re: CZ Action Timing
Post by: rhart on September 30, 2015, 08:19:13 AM
I can't make them move. Does anyone know if a setting in the computer is needed? Are these posted on youtube? Thanks.
Title: Re: CZ Action Timing
Post by: romukom on September 30, 2015, 06:05:23 PM
It is not posted in youtube.  It is a gif file; it should animate by itself.  You can Right click the image and copy the url address and paste it into your browser.
Title: Re: CZ Action Timing
Post by: rhart on October 01, 2015, 06:36:26 AM
Thanks, I'll try that.

I tried that and I still can't get it to play. Do you know if a special setting is required in my computer to get it to play gif files?

I got it now. For what ever reason my computer wasn't playing gifs. I researched online (since I had a technology bypass as a young lad) and figured out what to do. Apparently Windows 7 screwed up gif playing for one and all. Anyway, excellent job and thanks for your efforts - it helps me better understand what's going on inside the firearm. Keep up the good work!
Title: Re: CZ Action Timing
Post by: .45 acp nut on November 15, 2015, 12:18:04 AM
What is 'dual action'? The CZ 75B is double action/single action, as described by CZ for decades.
Title: Re: CZ Action Timing
Post by: Tok36 on November 15, 2015, 12:51:15 AM
What is 'dual action'? The CZ 75B is double action/single action, as described by CZ for decades.

 :-X
Title: Re: CZ Action Timing
Post by: romukom on November 17, 2015, 12:19:36 PM
What is 'dual action'? The CZ 75B is double action/single action, as described by CZ for decades.

 :-X

Mr. .45ACP:

I am sorry that my choice of words to describe double action was not to your satisfaction.  English was not my first language that I learned.  Unfortunately my mind is more visual and mechanical, so the appropriate of use of a language gets messed/ mixed up from time to time. It's already hard  to speak/write appropriately with one language.  Never mind when you are proficient with three.

So, because the way I am, I was quickly able to visually see what is going on inside the CZ 75 pistol. So, why not share what I see since a lot of CZ 75 owners want to know how it works to fully appreciate and enjoy their pistol (most likely pistols  :) ).

I would love to correct the gifs, but at this moment I do not have the time to do it.  It requires me to go though 45+ images per gifs.
Title: Re: CZ Action Timing
Post by: painter on November 17, 2015, 04:29:29 PM
What is 'dual action'? The CZ 75B is double action/single action, as described by CZ for decades.

 :-X

Mr. .45ACP:

I am sorry that my choice of words to describe double action was not to your satisfaction.  English was not my first language that I learned.  Unfortunately my mind is more visual and mechanical, so the appropriate of use of a language gets messed/ mixed up from time to time. It's already hard  to speak/write appropriately with one language.  Never mind when you are proficient with three.

So, because the way I am, I was quickly able to visually see what is going on inside the CZ 75 pistol. So, why not share what I see since a lot of CZ 75 owners want to know how it works to fully appreciate and enjoy their pistol (most likely pistols  :) ).

I would love to correct the gifs, but at this moment I do not have the time to do it.  It requires me to go though 45+ images per gifs.
Your English is fine, your terminology is fine, and the gif's work fine too.

If they don't it's most likely a browser issue, because it's not a file issue.

Nice work, and thanks for the effort.
Title: Re: CZ Action Timing
Post by: cntrydawwwg on November 17, 2015, 05:14:07 PM
What Painter said. Great job.
Title: Re: CZ Action Timing
Post by: 1SOW on November 17, 2015, 07:53:21 PM
Very good job!  Thank you for the graphic illustration.
Title: Re: CZ Action Timing
Post by: Tok36 on November 18, 2015, 01:09:46 AM
Indeed. I have referred quite a few people to these animations. They are a great tool to help folks get their head around the action work of the CZ75.
Title: Re: CZ Action Timing
Post by: Badger54 on November 18, 2015, 07:41:25 AM
Great animations that are very informative. Thank you for sharing this with us!
Title: Re: CZ Action Timing
Post by: romukom on November 18, 2015, 11:20:11 AM
I'm glad to hear that my work has helped many of you.
Title: Re: CZ Action Timing
Post by: KG on March 04, 2016, 06:33:40 AM
I can't thank you enough for these great animations.
They helped me tremendously!!
Title: Re: CZ Action Timing
Post by: dbuffington1 on March 21, 2016, 01:54:52 PM
Fantastic post thank you for your help.
Title: Re: CZ Action Timing
Post by: Oldwolf on July 06, 2016, 08:57:43 AM
This is a great post.
Title: Re: CZ Action Timing
Post by: Sharky on July 08, 2016, 08:29:06 AM
Ok.. Just a flat out Great Post !! Thanks for the info !!!!
Title: Re: CZ Action Timing
Post by: nksmfamjp on July 08, 2016, 07:41:56 PM
I'm feeling the same. This is a huge help related to my future action job plan.
Title: Re: CZ Action Timing
Post by: Navigation on August 30, 2016, 06:03:45 PM
This is pretty awesome work.  Thanks... I will be watching this animation a lot... Im sure my wife will think I am losing my mind.
Title: Re: CZ Action Timing
Post by: nksmfamjp on September 06, 2016, 07:41:54 AM
Your pictures are awesome, but doesn't the trigger bar(stirrup) disconnect from the sear and fp block lifter when the slide cycles vs at the end of the trigger stroke like you show? The slide pushes down on the cams on each side of the trigger stirrup when it cycles.
Title: Re: CZ Action Timing
Post by: Shar on January 08, 2017, 11:16:44 AM
I was hoping to find a good video showing this, and failed (though I got one that was sort of close).  Imagine, if you will, the delight when I found this while searching for something else.  Oh, how I do love serendipity, and people that do things for fun THEN share them with others to be helpful. 

Many thanks.
Shar
Title: Re: CZ Action Timing
Post by: romukom on January 15, 2017, 10:34:25 AM
Your pictures are awesome, but doesn't the trigger bar(stirrup) disconnect from the sear and fp block lifter when the slide cycles vs at the end of the trigger stroke like you show? The slide pushes down on the cams on each side of the trigger stirrup when it cycles.
My apologies for not responding sooner since I have been busy.  I think that you might be right and will verify it.  Maybe the pros like Cz customs or CGW can verify this?

Sent from my SM-T713 using Tapatalk

Title: Re: CZ Action Timing
Post by: romukom on January 15, 2017, 10:52:01 AM
I was hoping to find a good video showing this, and failed (though I got one that was sort of close).  Imagine, if you will, the delight when I found this while searching for something else.  Oh, how I do love serendipity, and people that do things for fun THEN share them with others to be helpful. 

Many thanks.
Shar
No problem. I am glad that you found it useful.   I was surprised to see that my thread got "sticky"  status.  I am planning soon to update the files to correct some minor issues that has been bugging me for a while.   Also just to spill the beans, I will be working on making a gif for the P09. The bad thing is that I haven't seen a cutout view of the P09 so that I can use as a baseline. But the good news is that I own one and can make it work; just will take more time.

Sent from my SM-T713 using Tapatalk

Title: Re: CZ Action Timing
Post by: romukom on February 18, 2017, 03:13:33 AM
Well as I mentioned in my previous post, I just finished the animation of the CZ P09 pistol.   I would have completed sooner but there were two issues that I have to deal in between.

The first one was deciding how much detail in the parts I wanted to show without making it too clutter.  So, I decided to include a close up and simplified version of the omega trigger.

Some of the parts are shown in the wrong order because I wanted to emphasize it first.  I have to admit that I have just forced myself to stop and call it good; otherwise I would be working on it forever.

Credits for reshp1 on his excellent post about the Omega trigger. It did helped me answer some of my questions. http://www.czfirearms.us/index.php?topic=70324.0

The second issue that I have to deal with were the animations of the 75B.  Thanks to the comment of nksmfamjp made me think that there some issues that I overlooked.  After looking at them for awhile, I realized that I made a major mistake.  I have modeled the sear cage with a flat bottom.  I forgot to include the bottom lugs so that the trigger bar slides down and release the disconnector (DA) or sear (SA).  So I had no choice to fix all of them.  :-\
I also realized that I did not completed the single action of the DA/SA action timing.  I also corrected some of the image shakes as well. Please disregard the older version.

At the end I enjoyed making them.  I for sure have a deep respect for the animators from the past and present because it’s a lot of work in creating a cartoon.  You forgot something and you need to start again. :P
I hope that you will enjoy them as well.  As I mentioned in earlier post, feel free to share them whoever wants to know how the CZ 75 and now P09 pistol works.   :)

(http://i.imgur.com/qYfWlpl.gif)

(http://i.imgur.com/gHEtY4j.gif)

(http://i.imgur.com/jlbSuqk.gif)

(http://i.imgur.com/8Hr8RU4.gif)

(http://i.imgur.com/nI0jCA4.gif)

(http://i.imgur.com/hOTTfIo.gif)
Title: Re: CZ Action Timing
Post by: Tok36 on February 18, 2017, 03:40:59 AM
Thank you for the addition for the Omega trigger system animation romukom. Great stuff!
Title: Re: CZ Action Timing
Post by: romukom on February 18, 2017, 08:49:12 AM
Anytime, I am glad that you like them. My P09 still torn apart since I started.  The only bad thing is that I forgot about the ejector spring and as usual flew out and hear it on my right then on my left 😣.   I am glad that David from CGW set me up with a replacement.   Of course in order to  justify the shipping cost for a $2 spring,  I included the 10x bushing on the order 😁

Sent from my SM-T713 using Tapatalk

Title: Re: CZ Action Timing
Post by: SoCal on February 18, 2017, 09:14:37 AM
Yes, thank you for all the great animation!
Title: CZ Action Timing
Post by: ZardozCZ on February 18, 2017, 03:24:19 PM
Sticky this please!
Thank you for the great work.
Title: Re: CZ Action Timing
Post by: homewrecker07 on February 18, 2017, 03:39:17 PM
Agreed, really informative!
Title: Re: CZ Action Timing
Post by: romukom on February 19, 2017, 12:20:21 AM
Well guys as I read your posts, I realized how powerful the P09 close up and simplified animation is.  Once one understand the basics, then the rest is just extra.  So, I had some extra time today and I decided to do another close up and simplified animation for the 75B as well.  Now we are all covered. Well not really there is the P10 and unfortunately the newest unicorn that can't get here. Oh well. :'(
Enjoy  ;D

Edit:  I am having problem posting the image with google photo. For some reason I can see it on my tablet but not on my computer or vice versa. Switching picture host to see if that helps.

(http://i.imgur.com/dcn7t8M.gif)
Title: Re: CZ Action Timing
Post by: IFFV68 on February 20, 2017, 10:53:51 PM
Those are really Cool.
Great information.
Title: Re: CZ Action Timing
Post by: romukom on February 26, 2017, 09:48:56 AM
I just updated the close up version of the Omega trigger action.  The safety/decocker lever cam (orange) were not right. The interaction of the trigger bar and the disconnector 'tab" were not full during double action.

(http://i.imgur.com/hOTTfIo.gif)
Title: Re: CZ Action Timing
Post by: copemech on February 27, 2017, 12:07:26 AM
Another GREAT addition!

Thank you!
Title: Re: CZ Action Timing
Post by: Sunkist on February 27, 2017, 10:49:46 AM
Excellent work-thank you!
Title: Re: CZ Action Timing
Post by: romukom on February 27, 2017, 07:29:04 PM
You are welcome! If you see something that is not right, just let me know.
Title: Re: CZ Action Timing
Post by: rhart on April 02, 2017, 07:55:18 AM
Fantastic work!
Title: Re: CZ Action Timing
Post by: seprim on December 09, 2017, 03:30:29 PM
Thanks for this - very impressive  8)
Title: Re: CZ Action Timing
Post by: R.A.N.G.E.R on December 16, 2017, 02:53:34 PM
Really great work. Good information is timeless, thanks for sharing!
Title: Re: CZ Action Timing
Post by: timetofly on December 17, 2017, 08:51:48 PM
Sir,

You are awesome. 
Title: Re: CZ Action Timing
Post by: CZATC on January 01, 2018, 06:51:22 PM
Just saw this sticky trying to diagnose a reset issue and wow. This is excellent and what a contribution for the benefit of those of us learning the system. Well done sir. Well done.

Sent from my Lenovo TAB 2 A10-70F using Tapatalk

Title: Re: CZ Action Timing
Post by: Chydes35 on January 05, 2018, 11:08:48 AM
Thank you for this!!!

Sent from my SM-G950U using Tapatalk

Title: Re: CZ Action Timing
Post by: romukom on January 27, 2018, 01:10:10 AM
Well it has been almost a year since I made my last animation.  With your words of encouragement, I decided to make another one.  So, here is the latest for the Scorpion Evo fans.  Enjoy!  ;D
PS.  This animation is also in my original post along with the others that I made..

(https://i.imgur.com/G9RTsxV.gif)


(https://i.imgur.com/PZWvfX9.gif)
Title: Re: CZ Action Timing
Post by: Tok36 on January 27, 2018, 01:51:45 AM
Neat! I do not own a Scorpion, i was unaware that it has a Firng Pin Block somewhat like a CZ75. Thank you for the new animation romukom.
Title: Re: CZ Action Timing
Post by: romukom on January 27, 2018, 07:46:51 AM
I noticed that as well. Mine carabine is still in pieces. But at least forced me to do a good cleaning!  Yep, it helps to have the actual gun do the work.  This time I took a bunch of pictures of the parts. This time I used a cutting mat that has a 1" grid; that way it's easier to adjust the scaling on the computer. I only has to pull out the trigger group once to verify a dimension.


Sent from my SM-T713 using Tapatalk

Title: Re: CZ Action Timing
Post by: Chuck James on January 08, 2019, 09:21:22 PM
These animations are awesome!!!
Thank You Sir!!!!
Title: Re: CZ Action Timing
Post by: JhTexas on January 19, 2019, 10:46:41 AM
Thanks for the time time and effort you put into all of these animations! ;D
Title: Re: CZ Action Timing
Post by: czdrifter on April 03, 2019, 03:08:11 PM
This post is one of the most helpful pieces of information I have found on how the CZ actions work. It is very easy to see how each part relates to the others. I am now confident to disassemble my CZ 75 pistols because now I know how they were designed to work. Thank you very much for this!
Title: Re: CZ Action Timing
Post by: Mjolnir on April 03, 2019, 04:15:52 PM
Thank you, brother!

You’re a Godsend!


Sent from my iPhone using Tapatalk
Title: Re: CZ Action Timing
Post by: romukom on May 20, 2019, 12:36:25 AM
It’s has been awhile since I made an animation. I have been reading your comments. I am glad that you all like my work.  So, I just finished the CZ BREN 805.  This time it took me awhile but I am happy with the results.  One thing I noticed that the images are not as crisp when dealing with anything larger than 8.5 x 11”.  As mentioned before, feel free to copy and share as long as I get the credit even if you don’t remember my name.  ;)

(https://i.imgur.com/Ia5YN0r.gif)


(https://i.imgur.com/a0JtqHw.gif)
Title: Re: CZ Action Timing
Post by: Sulpgnir on May 20, 2019, 01:16:15 AM
It’s has been awhile since I made an animation. I have been reading your comments. I am glad that you all like my work.  So, I just finished the CZ BREN 805.  This time it took me awhile but I am happy with the results.  One thing I noticed that the images are not as crisp when dealing with anything larger than 8.5 x 11”.  As mentioned before, feel free to copy and share as long as I get the credit even if you don’t remember my name.  ;)

Thanks again for the great animations!  As always, your contributions to the CZ community are greatly appreciated!

(https://www.dropbox.com/s/scoc6bvlwtfpulp/like%20images.jpg?dl=1)
Title: Re: CZ Action Timing
Post by: recoilguy on May 20, 2019, 12:47:56 PM
Nice work here
Title: Re: CZ Action Timing
Post by: radagast on May 20, 2019, 01:55:28 PM
Thank you so very much for your efforts. I really appreciate all the great information and wonderful folk I've found on this forum !