Gun design musings from across the pond
Vložit
- čas přidán 22. 08. 2024
- Uploaded from a cruise ship somewhere on the Aegean Sea between Turkey and Greece, the magic of Elon Musk's Starlink made this possible! It's with a bit of dread that I'm noticing CZcams quietly demonetizing some of my videos; even my latest rifling video, which barely has a gun in it! It really sucks what they're doing to gun channels (again), and I'm sure it's only going to get worse. For now I'm hoping they still allow CAD models of guns to be shown! Assuming this video is allowed, I hope you get some good information from it!
Mark; you can increase the system inertia by using a heavier hammer, that is cocked by a small radius on the breech block; as close as possible to the hammer pivot.
Look at the hammer on an MP5 and you will see what I mean. Also, the original 1911 had a small radius at the bottom of the firing pin stop to make it harder for the slide to cock the hammer. This made it possible to use a 14 lb recoil spring, but harder to charge the pistol, starting with the hammer down. Then the troops complained about the 1911 being hard to charge; so the cocking radius on the FPStop was increased, and the recoil spring increased to 16 lb to slow the slide down.
With a blowback 9 mm you will need all the help you can get from a relatively light slide. Adding effective hammer inertia via negative leverage is better than making the recoil spring very strong, because the former can be done without a huge increase in slide mass.
Whether you know it or not you are redesigning the Musgrave 9mm pistol.
Mark I got a headache watching u move that gun around. Thank you 😊
Im convinced there is an algorithm put in place that governs over all of the model sites that slightly modifies dimensions for ALL free model files for anything related to firearms. Albiet magazines to sears.
There is a French company that does this(
People use Odysee just fine. I imagine it's just a case of people going "Yeah, that's good enough for a visual model/for free".
@@StepSherpaName of the company?
As a part-time CAD modeller for 3D printing applications, I can assure you that even if all the dimensions are exactly correct on the STL, it still requires the printer to be dimensionally calibrated while on a stable, level surface. Variations in 3D printer setup can easily induce errors to the dimensional accuracy of parts.
Reinventing the Astra 400 with a polymer frame
Brilliant, because tubing is much easier to utilize than cast or machined parts, Polymer and tubing will be the wave of the future for both the manufacturers and hobbyists.
Keep trucking till they turn the lights off. Dig the off the shelf component consideration. You were one of the main guys who got me into scratch building and motivated enough to start uploading too.
reminds me of the musgrave 9mm pistol
Just off looks alone, first impression was like a modernized Astra.
Yep
You could always use a nut to hold your barrel in place. Use a groove in the barrel that slides over a protrusion in the frame to locate it and then lock it down with a nut.
Reminds me of the retro
" Wilkinson Linda" pistol of the
1980s
It's great to watch this as an old paper, pencil, and ruler mechanical draftsman. I learned the trade right before PC's became a thing and made CAD available to the masses. I went into computer networking and website management instead.
I can't wait to see your design in full, but watching these working CAD models make it so much easier to understand your vision and what you are talking about in the moment. One thing, are you going to thread the barrel to accept a 'noise cancelling device'?
You can use 3d printing to make a positive model and then make a negative mold out of it. You could easily make the frame from carbon fiber with plastic structural inserts. Just split the design along the centerline to create two halves.
looks very much like a musgrave feeding from glock mags
Да, попытка переизобрести Макгрейв...
Always love seeing you designing stuff mark. Keep up the great work!
I always wondered why handguns don’t generally use a pin on a spring ejector that is pinned into the slide, kinda like an ar-15 bolt.
I think that has more to do with compact nature of handguns and added complexity. The angle the gun is intended to eject at might play a role as well. ARs typically eject straight out (relatively speaking) whereas handguns are more or 35-45°ish degrees.
Edit: Also big reason an AR might use it is the rotating bolt.
What i don't like about CZcams is they pick on only some gun channels. Like you, Now Matt from Demo he can get by with so much never have no trouble with CZcams. It is B/S if you ask me.
Re: Sighting system - maybe have a 3D printed "round to flat" adapter that can be bolted to the slide through some means that would allow the installation of something like the Ruger batteryless red dot or any of the common MRD patterns?
Kind of looks like a welrod and a glock had a baby. Would be cool to have a short one with a threaded barrel. Very cool!
its literally a musgrave feesing from glock mags
@@joemama.556 Or like an Astra 400 with a Glock frame.
glad to be able to see it before demonetization
The design and manufacture will be simplified if two square pipes are used. Just try it. The upper pipe is movable, the lower one is fixed. The main return spring is located in the lower pipe.
Why not simply let the rails run on the inside of the tube and relieve the insert piece to fit the rails?
Wow! Enjoy your vacation!
I've found it helps to do the mag well first, then use a series of sketches on offset planes as guide geometry linked by a 3D sketches as guide curves to extrude the actual grip shape. It's also nice because you can convert and translate the mag well geometry for half of each sketch. Doing a single plane extrusion for the entire frame (is what I'm guessing this is) is a good start but can be hard to fit in that organic look with, say, a fillet tool.
Alternatively, if you take a cut out around the top of each side of the grip to give it a palm swell then blend it with a radius, it can break up the lines enough to get some nice fillets in.
Edit: Adding the trigger guard before or after you finish the grip will change how the software can process the fillets and how smooth they can blend. If you remove the fillets that run from the front of the grip edges and under the forward section of the frame, give it a sharp angle in that corner so the fillet doesn't follow the entire profile of the frame, you might be able to get that grip to be a lot less square by dialing each one in individually.
A very elegant solution for holding the firing pin body would be to extend the rear rails to capture the firing pin body when assembled to the frame. And when the slide is removed the fireing pin body would slide out on its grove in the slide.
After writing this I realized the fireing pin body looks to be a larger diameter than the bottom cutout on the slide -- monkey trap.😮
youtube asked me to smiley face rate this comment, i didnt understand that complexities involved and cannot give an accurate smiley rating mr youtube, srry
The slide arrangement looks similar to the Astra 400 etc design.
When I was a boy I got a Beretta 48. A long sear makes the interference between sear and sear notch small, so it tends to a light trigger with the same interference. The hammer spring is also the sear spring. Your slide looks like a Sauer Behörden pistol, but without an internal striker. Don't use mousetrap spring on the hammer, it may be good on an AR or a GB80, but these springs may get broken nobody knows when.
Being your own best critic to make design changes 👌
Good stuff Mark! I try to watch your videos ASAP, just in-case the overlords decide to disappear them. Currently use Autodesk Inventor but was pretty proficient with Solid Works at my previous employer.
Finally, someone is designing a slide thicker than a Hi-Point. 🤣Very unique! If you're already thinking about a name for the final design, I'll throw the name "the birthday cake" out there because it looks like a an icing gun for cakes.
Love you videos like this Mark - hearing your musings on the process, making stuff fit, how stuff will go together, how to avoid designing something that can't be made / unmade - thanks!
Pretty cool Mark! Don’t forget the optic cut!😂
Meh, just braze of scope rings and call it good.
At 11:16, perhaps have the chamber and trunnion as one piece and the barrel screws into it?
That way, you could notch the chamber for an extractor and the barrel wouldn't need to be "keyed" to a particular rotational position.
a very nice modern take to the J.P. Sauer & Son Second Series Model 1913 Pistol
For the frame to partial over slide, pin it by the trigger guard. Trigger use a hybrid sig 1911 style trigger system. I like modifying existing designs because it is much harder to reinvent the wheel.
Have you thought about making a video with tips and tricks on designing in solidworks? I started using the program some time ago and it's brilliant but I still can't deal with the trigger group for example, specifically simulating the action. I would be extremely grateful. I love the channel I love your work, sending greetings from Poland:)
Very cool. 3D CAD FTW! I really need to get off my duff, convert an old 3D printer into an ECM for rifling barrels, and design a maximally 3D printed gun. Or start with a Glock barrel and design my own max 3D printed gun... for fun.
Have the sear maybe interact from the side or be round with flat that turns. also the block over trigger might not need to be raised by extended. so trigger has pin area but higher to be a lock for barrel. Might have issues with recoil force so frame part shouldn’t also be outside of that supporting the folded part. You might have some issues with round getting in barrel so lock at the hipoint or old small blowback. Tube idea is great but milling slots might be hard maybe a smaller pipe dia that just slides in pinned to that rail. Any way enjoy your invention
The front part that needs some cover put a little stationary donut type deal over it so you can mount a fixed red dot for fun
Tec-17! Reminds me of the pistols from the first total recall movie. I like it!
Those were Claridge Hi-Tec pistols, in case you were interested in getting one.
@markserbu #markserbu have you thought of downloading some of the South African Musgrave pistol CAD models to see if can find a happy medium between both designs
Great insight into the mind of a genuine artist! Love it Mark. 👌
Instead of adding a separate ejector, why not make it as an additional bend on the sheet metal. You would just have to treat it after machining/bending.
On the slide removal, if the front bearing cap is threaded/removable, then you should have the clearance where you would not need to enlarge the bottom slot, as you would be lifting the slide from the rear and pivoting upwards and forward. The minimum amount of slotting would be required.
Looks nice. It looks like something someone that has a small home shop could easily build. I wish i had more time to work with CAD. I tend to build then fit things together. When i do cad something i always try to figure out how i would machine it theb design it around my capabilities.
@markserbu what I would like to see, is someone design a universal, forward charging conversion system, for an AR-15! I know it isn't much but it is something I think would be cool.
Have great rest of your vacation brother.
Lots of pics you can share please!
General shape reminds me of the AAP01 Airsoft gun (Ruger MK Glock mixture) especially with that Glock grip lower
You should make a non suppressed version of the veterinary pistol vp9 where the magazine is the grip
neat as heck. if for sale this will be my first serbu firearms purchase
Front end piece can be additional slide points
Sounds like a working vacation. Cool stuff
Seems like this design could benefit from a magazine like the p365s, where it tapers down to single feed where it goes in the rails/FCU.
Might make the ejector simpler if ithe rails were narrower. Then the ejector could be bent in off the rail. I think the APX is done like that…
I saw a senator speaking on pedophilia and child molesting and because of CZcamss new rules, to make it so it was not age restricted, they had to bleep out those two words. I'm glad this video made it for now. You need to sell coffee cups or something like cad files lol.
mark is like a spectre. just teleporting around n shiet.
now for .44magnum, can we add a gas system from the area the slug rests in chamber, like the Deagle? and add rotating locking barrel. Either deagle mag or single stack design by you (for slimness of profile).
correction: must be fixed barrel, so need a locking design breakthrough to keep it glock sized
kinda reminds me of the linda carbine it'd be awesome if you can use some mechanical advantages to lower the weight of the slide and recoil spring strength
Could you put a slide in a slide to match the frame round. That would solve 2 of your problems. You could even do a partial sleeve to the slide like a model 92. If it raises in the front and back, you have sights and pin it to the frame to attach & hold it all together.
I love cad modeling
For some reason, marks voice and his musings and thought processes and his humble ways and knowledge of gun design is soothing af.
Random thought (probably will not work out).
How about using a break or suppressor attached to the slide to help in slowing the slide down as its a direct blowback? Precision though would be very important, and when you keep that in mind then using a gas delayed system is maybe just as easy.
Just a thought, 0 calculations done, not gone over it thinking logicallly, thought of start of this video
Looks like A HOT GLUE GUN
If it’s so bad I can’t buy a p80 kit because it’s been outlawed, I may as well look up the sten. lol
You should try to integrate a suppressor and add optic cuts and a pictainny
damn, that icon looked like a pretty ruger mark 3d print :DD
just looked lits like a inverse ruger mark, and a challenger with a extended round the barrel, , i do think a gap inthe top for a similar to challenger post and rail ontop to hold it in
what do you call it? the serialized p[art, the easiest part to make in sheet metal and share by a pdf, for others to make XD
if its a 9mm blowback, what woudl the weighton that slide be, thats a prety spicy mass far out wouldnt it be?
OBS is a good free and open source screen capture software.
All we need are super shortys. Everyone and their brother makes a junk Glock.
Go with a one inch diameter for the slide. You should sell the uppers. Looks dirty. I want one, threaded barrel please!😊
dmnnn cant wait for the real version of this, mannn
Free models are free for a reason, no precision. Made with photo references instead of schematics from manufacturers.
I'm pretty sure it's illegal to even think about firearms in Europe.
I am in Germany and own a couple, soo...(;
Yet somehow most of the best designs come from Europe…
Remind me where H&K, SIG, B&T, Beretta, FN, CZ and much more are from...? Stop thinking in hamburgers per minute.
That CAD modeling is amazing
Im pretty sure you dont know what Europe is
The video is still up an hour after uploading (according to the timestamp above the description).
Do you post videos early for your Patreons? (Uh, do you have Patreons? You don’t mention it that I can recall.) If you do and it’s still up then you should be good under Our Overlords latest Decrees.
You might get in trouble describing how you plan on preventing runaway. A “too-detailed” description and illustration of a disconnector could be construed as instructions on how to turn a self loader into a self firer.
On the other hand this is not a real gun yet. Nobody can go out and buy one and make modifications to it. If you get gigged by CZcams for any reason that defense should hold up. Well, in a rational world anyway.
This kind of video is why I subscribed. I want to know how the bits and pieces do what they do. Watching you recursively think through what a part does and what it might interfere with or if it can even be made and installed is fascinating to me. Love me some mechanical design.
You, at one point, we’re looking for the places where a pin would go though. It looked tight through there on the model. Could you not go thinner with a horizontal wedgy not-pin sort of flat thin, not round and fat part?
5:39. swing link it with a roller chain. kinda like an 1911
that was fun .... Thanks Mark !!! ''''''
And in the "old" days many of those parts would have to be made/machined/fit and then get the oh shit moment
Thanks, Mark 👍
#markserbu If this were to be a new world-order resistance tool, a great design feature would be a modern simplified version of the Tokarev trigger group due to its modular design. what do you think Mark
In these designs it is the front rail that transfers most of the energy to the frame. The rear rail is only a guide. You might want to consider epoxying it into the frame as a separate piece. You can save some millimeters in width and length by going with a steel mag instead of that one.
6:49 it was probably modeled off of an airsoft mag. A SURPRISING amount of online gun content is by and for larpers in europe and asia who use stupidly accurate and realistic airsoft replicas. I remember hearing about it several times through my childhood and into my teenage years of kids getting in trouble for having an airsoft gun bc, upon import to the states, the ATF realizes they're so well built all it takes is a few more parts and maybe a little filing and you have a working firearm. I've been tricked by videos up until literally the point they show the tip of the cartridge or disassemble the bolt or slide into thinking this airsoft gun is an actual pew pew. Crazy stuff
I think all the guntubers should get together and file a lawsuit against youtube.
Best channel on utoob
why don't you alter the design the sheet metal component so it can be chassis that could be interchanged throughout a number of firearms that can have different grips barrels calibers etc and registered? kind of like the sig or defcad options? feels like what you have is simple and cool but could be moreso
I'll buy you a beer if you're in Lisbon!
You are the USA's favorite "gun nut". You always show how your designs work.
THINK THE WORD YOU WERE LOOKING FOR , MAY BE 'DEFORMED' MARK !!!!! 🎉❤
Nice work.
The intro image filter is gay.
Nice to see an upload from you. Thanks.
Are you still playing around with necked up 5.7? Really interested to where that goes.
It's like a Glock and an astra had a baby. Cool!
May I ask what version of solid works do you use to draft your models, I'm still on a drink napkin and a pen from the bartender. I think she goes by A.O.C.
I use FreeCAD. Fantastic license terms, extremely powerful. But frequently ignores conventions used by other popular CAD programs.
On the front of the barrel
Hey Mark. Mr serbu my name is Bradley, anyway I'm an amateur gun guy here in the good old state of NY unfortunately. Looking to find one of u guys in the industry to learn from
Drop in barrel and orient it with the feed ramp. Does solidworks have a free or cheap version
just a suggestion.
This could be an integrally suppressed pistol if you could put a threated barrel and a matching diameter suppressor at the end
greetings from Cyprus
Wouldn't you need rails fore and aft, like the Glock does to keep slide from binding?
You have to make that in 30 cal
just a thought....watch makers have been using miniature chain drive mechanism for centuries. even today TT motorbikes are still using chaindrive... I haven't seen one gun design ever use chain to divert energy (spring tension) in a different direction or use chain drive to compact the design of the gun. how come? I see alot of potential here.
It adds complexity without any significant benefit. And the room you have to play with in a handgun is very limited.
cool
I think the term you are looking for is mechanism frame. Your design almost cries for an internal bolt.
Where do you find accurate dimensions for common magazine designs?
musgrave
Ja meneer
oh wow, yeah it does look similar and pretty. very elegant hehe