Mauser K98 blueprints

[bruce98k]

In this thread I will post up scans of the original prints I have.
in this way everyone will have access. Be patient as there are alot.
I will have to process most of the files as they are too large.

 

[Guillaume d'Orange]

Fantastic ! Would you please stick the thread so that it does not get lost ?

 

[bruce98k]

Yes we will sticky this for permanent reference of course!

 

[dder11]

Badass, give me some time to look through them, I'll give updates on progress as it happens.

 

[bruce98k]

Next batch....

 

[CLG]

These are incredible! Can’t thank you enough for this thread.

 

[Iasc300ia]

Very nice Bruce. Great content

 

[Guillaume d'Orange]

It is funny that they used Durferrit to designate the nitric salt bath treatment.

 

[Fal Grunt]

It is funny that they used Durferrit to designate the nitric salt bath treatment.

I've been told that Durferrit was not a nitride process, but was a cyanide bath.

I have not been able to find any primary documentation from the time to say one way or another. I know it was a common process, I know lots of people used it, but like in the US, most industrial products, when they go by the way side, are forgotten and lost.

If you have any documentation, I'd really appreciate you sharing!

 

[Guillaume d'Orange]

I've been told that Durferrit was not a nitride process, but was a cyanide bath.

I have not been able to find any primary documentation from the time to say one way or another. I know it was a common process, I know lots of people used it, but like in the US, most industrial products, when they go by the way side, are forgotten and lost.

If you have any documentation, I'd really appreciate you sharing!

I wrote nitric/nitride because the company still exists today and apparently does the bulk of their business with those salts.

Nitrocarburizing - Hef Durferrit GmbH Mannheim

Nitriding salts Tenifer & Arcor greatly improves properties like: wear resistance, fatigue strength, corrosion protection.

www.nitriersalze.com

Either Bruce has more details or perhaps this company saved some archives from air attacks.

 

[dder11]

In this thread I will post up scans of the original prints I have.
in this way everyone will have access. Be patient as there are alot.
I will have to process most of the files as they are too large.

In the file labeled as 'receiver_lr' in the bottom right of the image is the text 'zeichnung besteht aus 2 blatt' which means 'this is page one of two' if I remember correctly. Do you have the second page? I am currently making decent work of what you've provided so far. When I stop working on it for the day I'll post a screenshot of the progress, currently slamming my head against the wall trying to figure out the smaller diameter for the circular portion of the receiver that is 'behind' the large ring portion from which the other cuts are made. I might just go to my rifles and measure it with calipers then try to reason out what it is, most of the measurements I made with them on the prior attempts were reasonably close to the actual dimensions.

Also, if I can be spoiled, could you possibly rescan that specific document with a higher contrast? I can't tell if my eyes are just bad or not, but I am having a decently hard time seeing the indicator lines. I currently am tracing over them with a pencil, so I think I can make it work as is, but it'd be a convenience if the contrast was upped. Once again, thank you either way.

 

[dder11]

Didn't get an absolutely absurd amount done due to the above mentioned search for that dimension, but I ended up simply measuring and going with what seemed most reasonable. Might do more work on it, if so then I'll edit this message with that. Until then, here is what is done:
As you can see, I got the entirety of the 'front ring' portion done, including the angle on the front of the recoil lug interface. The doc is pretty thorough and legible on the portion 'behind' what I have gotten done, it should go much faster than this. In order to make it easier on my computer I am going to avoid doing the chamfers until everything is done (AKA after the camming surfaces are calculated and added)

 

[Dzerginski]

Didn't get an absolutely absurd amount done due to the above mentioned search for that dimension, but I ended up simply measuring and going with what seemed most reasonable. Might do more work on it, if so then I'll edit this message with that. Until then, here is what is done: View attachment 355374
As you can see, I got the entirety of the 'front ring' portion done, including the angle on the front of the recoil lug interface. The doc is pretty thorough and legible on the portion 'behind' what I have gotten done, it should go much faster than this. In order to make it easier on my computer I am going to avoid doing the chamfers until everything is done (AKA after the camming surfaces are calcul

In the file labeled as 'receiver_lr' in the bottom right of the image is the text 'zeichnung besteht aus 2 blatt' which means 'this is page one of two' if I remember correctly. Do you have the second page? I am currently making decent work of what you've provided so far. When I stop working on it for the day I'll post a screenshot of the progress, currently slamming my head against the wall trying to figure out the smaller diameter for the circular portion of the receiver that is 'behind' the large ring portion from which the other cuts are made. I might just go to my rifles and measure it with calipers then try to reason out what it is, most of the measurements I made with them on the prior attempts were reasonably close to the actual dimensions.

Also, if I can be spoiled, could you possibly rescan that specific document with a higher contrast? I can't tell if my eyes are just bad or not, but I am having a decently hard time seeing the indicator lines. I currently am tracing over them with a pencil, so I think I can make it work as is, but it'd be a convenience if the contrast was upped. Once again, thank you either way.

Hi
What radius are you interested in? Mark it on the drawing.

 

[bruce98k]

Gew98 receiver from Jon

 

[Leaf-blowing gooback]

An absolute goldmine of dimensions here.
MANY thanks for posting this.

 

[bruce98k]

guys there is much more material....will continue to add to the thread

 

[dder11]

Here is another update, found the time to get far more done than last time:

Next will be the internal camming surfaces, the trigger and firing pin components, the chamber area, and then finally the fillets/finish removing the wall(that you can see).

If all goes well I'll see if I can get a prototype made on a plastic 3d printer, and check that against multiple mauser 98 bolts for function. While that is happening I'll work on the bolt components.

 

[Dzerginski]

Here is another update, found the time to get far more done than last time:
View attachment 356366
Next will be the internal camming surfaces, the trigger and firing pin components, the chamber area, and then finally the fillets/finish removing the wall(that you can see).

If all goes well I'll see if I can get a prototype made on a plastic 3d printer, and check that against multiple mauser 98 bolts for function. While that is happening I'll work on the bolt components.

Hey,
I noticed an inaccuracy. It is better to fix it now, at this stage, as it will be hard to change the part later. That's my opinion.
Best regards.

 

[dder11]

Hey,
I noticed an inaccuracy. It is better to fix it now, at this stage, as it will be hard to change the part later. That's my opinion.
Best regards.

Thank you, for some reason I flubbed and didn't realize the surface wasn't straight up and down. I'll revisit it and look closer to figure it out.

 

[Dzerginski]

Hi!

I'm looking for those sizes too, and I'm not having any luck finding them yet.

Needed help for 3d model

Hello! I am turning to you because I need help. I collect original drawings for 3D models. I am engaged more than 2 years. I want to create all kinds of Mausers from 1988 to 1945. I will be very glad if you can share your drawings for models. On this plan Mauer Karabiner 98k I've labeled the...

www.k98kforum.com

Thanks.