Hi Matt! Yes! :) i need 1 month 1/2 to arrive to the end, to win a bet with a friend that now have to pay me 2 beers!🤭 No great pitch on lathe? Yes, It Is possible 😀
Ciao Greg! Very happy to hear from you!! Happy you think that about the video, first "how to make a long pitch", second " how to make a cutter that cut"! Ciao Greg have a nice week!! Alberto
Okay, I'm going to stop right here.......Pro tip....When using a telescope gauge. Open, and lock the gauge slightly larger than the bore you are measuring. Place the gauge in the bore on an angle, making contact with the top and bottom of the bore. With a smooth upward pull on the handle, remove the gauge from the bore, and take your measurement......you're welcome. = ) Edit; For bearing fits, don't use calipers. They have a tolerance of plus or minus 0.001". Use a micrometer. That's the reason your fit is loose.......= )
Awesome project! Any chance you have plans? Really interested in how you made the cam for the cutter to use a screw for precise depth of cut adjustments. Thank you!
@@ZURAD Hi Zurad, thanks a bunch for your comment: yes It Is an old fashion work to cut inside a hole, my challenge was to make a small pitch ( like a M12 screw) in the same axis of a long pitch ( 1 turn in 250 mm) and this was my great satisfaction ! Cheers from Italy, Alberto 🇮🇹
@@BobJury-lf6bb Hi Bob, with the home 3D printer you can arrive at 300 ( mm) so around 10-11" inches, but with a bigger lathe then mine; my challenge was to separate a long pitch from a short pitch ( like a screw) in the same axis.
@GoodPimpofTheNorth Like many you did not understand the meaning of my video, also if you do not like or do not share what I have built, you can move on to something else, you are not obliged to comment...
Wow Is My answer to your comment, Mark 🤭 Thanks Mark! It was a long time that i tried to solve that " problem", a small pitch in the same axis of a long pitch! 😀
Wow! Alberto. Now I know why you have been so quiet recently. What a project. So involved. So many processes. Enthralling from beginning to end. Thank you for sharing. 👏👏👍😀
Ciao dear Andrew, thank you for stopping by! Yes first the "how to make a long pitch", after " how to make a cutter that cut 🤭", so It Is a tool and a machine in the same time 😀 Happy to hear from you dear Andrew, see you soon with a new project! Alberto 🇮🇹
Thanks William, you know i dream to make this device for 1 year, i decide to make it after the idler joint idea: before that the project was stuck! Another problem to solve was the cutter, in HSS not problem but in normal carbon steel not easy to make sharp edge, that It gas to cut like a knife!
Hi bill and thanks for the message, it is a machine capable of performing a "helix" cut with a pitch that is not found on a lathe, because threads with a pitch of 250 mm or more do not exist; it was a bet with myself to be able to build a compact machine that could do that type of work, therefore to rifling a gun barrel or to create slots for lubrication (spidering)
it is a proof of concept thing and as you can see it works ! did he make any thing new you know invent no but he showed you how its done ! so if you scale it down and make the rate of twist form longer there you go ! that set up as is could do rifled choke tubes
You should take to the custom of cleaning before measuring, it will save you some trouble. Also, maybe it is the video and the impression it gives, but your chuck seem slightly off-center.
Very nice work. Clearly you are very skilled. I made a Clint Westwood design rifling machine out of scrap metal I had laying around. It did work ---- sort of. The real problem is doing small bore rifling like .22 cal. Your machine would only be good for large caliber like 9mm as is the Clint Westwood design. Just my opinions. CO
Это не совсем так. Сама конструкция прекрасно сработает с любым калибром. Но сам резец, для 22lr, имеет другой вид. Он цельный, и роль и оси и пружины выполняет разрез в материале резца. Представте себе цангу фрезерного станка, на одной из губок которой торчит зуб резца, а вместо фрезы - в коническое отверстие в середине - вкручивается винт, раздвигающий губки. Вот так и выглядит резец для 22. Только две губки всего
@@olegplisiuk4687 Спасибо, что прояснили это. Я обнаружил, что любой стержень, на котором есть резец для калибра .22, стержень очень маленький и будет гнуться, если только он не очень короткий, как у короткого ствола пистолета. О стволах под калибр .22 не может быть и речи.
@@canadianoddy8504 нет- нет! При нарезке 22 калибра - резец не толкается! Он тянется, и натянутый стержень становится ровным как струна. Проблема в том, что он способен скручиваться, и не передавать резцу угол копира. Поэтому сам резец обязан быть с углом, соответствующим углу копира ( твисту), и тогда он правильно идет в металле
Thanks to everyone for the comments, for sure you can get to 8 mm, the first version of my video was with an 8 (mm) head (in fact the central shaft has a thin diameter of 7.5 mm to be able to switch to minimum in an 8 mm hole) but then I encountered friction problems; it certainly cannot be used, given how it is built, for a .22 LR, in which case you need a "button tool", but also a hydraulic press, due to the high efforts it requires!!
Using a spiral slot to guide cutting tool is very primitive and limited. For over 160 years (since American Civil War) Sine Bar rifling machines (such as Pratt and Whitney) are the standard. You can easily adjust to *any* pitch (turns per foot) and long rifle barrels, up to 50-60 inches if needed. They can easily provide progressive pitch too. Spiral slot guides have only *one* pitch. And can only rifle their own length.
Hi and thanks for your comment: It a normal digital caliper that i modified to be installed on my tailstock: on my channel, if you search, you can find the video where i show how to make It, the only difficult thing it's the drilling operation, because It Is hardened steel!
Guten Morgen, ich habe eine Maschine gebaut, die in der Lage ist, einen Propeller mit einer sehr großen Steigung zu beschreiben. Mit dieser Maschine können Sie beispielsweise das Gewehr der Läufe oder die Ölkanäle zur Schmierung erstellen! Damit habe ich eine Wette gewonnen, nämlich dass es auch auf einer Standard-Drehmaschine möglich ist, Bearbeitungen mit enormen Teilungen wie 1:250 mm durchzuführen.
this boosts my ego so much like y year ago i made in "cad" (it was tinkercad that aint really cad lmao) and exactly the same idea so many things about this are similar to what i made just what i did was a great idea just not enough expriance to make something like that that would be good great work my dude
Hi Mutum, the method Is barrel rifling, It Is an old method with a new idea, putting in the same axis a small pitch and a long pitch ( i have described on the video information), you can make the longer pitch you want!
@@geppettocollodi8945 Ciao Geppetto non è per nessuna pistola, solo una sfida che ho voluto vincere da tempo con me stesso, si possono fare rigature di qualsiasi passo e su diametri da 14 mm in su, sotto è difficile per la costruzione del porta utensile che diventa laboriosa e micrometrica..si possono fare anche ragnature per lubrificante come quelle che si vedono sulle bussole delle macchine utensili. Ciao, Alberto
@@hulksmash6476 Yes correct, because i don't have a press! So i tried another way to arrive at the same result, using a mix of ideas, 3D print parts and lathe parts.
@ab-shop clock you bar (dti) in chuck and push through using tailstock with ejector pins of increasing lengths. It would be really cool to see you build a jig and maybe even put hydraulic cylinder, bolt to floor? I am no professional gunsmith dude, I did mechanical engineering but in injection moulding industry. Keep on keeping on 😉
@@hulksmash6476 Thanks for your comment, i will think about It, every new idea can be a new challenge and a new video!! A big ciao from Italy, Alberto 🇮🇹
@@DClarke1954 Thank you for your comment: i know about It, in the last video i made music and machine sounds, to offer both! 😀 A great ciao from Italy, Alberto 🇮🇹
ciao Alberto vedo un progetto esteso -si parte da un idea fissa poi si disegna e via di tornio e fresa ..salda affila e montaggio - si un opera così definita è molto impegnativa ....però quel colore della camma ..mai visto....torce un pò la vistaa
@@allangibson8494 you obvious dont know how ecm or 3d printing works and what can be done with them ua-cam.com/video/Fg_o9wQQaxs/v-deo.html&ab_channel=AmphoraVideo and another one ua-cam.com/video/AyPJ2br5NFQ/v-deo.html&ab_channel=AGCast
@@adriandumitrascu4292you seem quite retarded to assume one needs 3d printing experience in order to understand a process that predates 3d printing.. 😂 Sure, mandrels and other parts can be made by any idiot with a 3d printer and a downloaded .STL that someone else made.. The accuracy and quality of said mandrels and parts is another thing all together. At least a semi competent machinist can make one with a great amount of accuracy and also durability as they aren't anywhere near as limited with regard to material selection.
@@PaddyFromPaddistanit has been done many times with just hardware store parts and 3d printed, but like you said accuracy may be questionable, ECM barrel making with 3d printed parts was popularised by a guy called jstark, but yes the tech does predate 3d printing.
I'm not a gunsmith or machinist. But I have a question can you make the barrel in two parts one the shell and the rifle bore as sleeve of sorts that can be changed out as needed? Maybe using some screw from the shell to lock it in place? I haven't seen that or even know if it's legal😅😂 just seems convenient if the rifling fouls or damage happens? Also I guess you could but a new barrel altogether.
Given the extremely high pressures that occur inside a rifle barrel, I don't think that would be a good idea. Any gap between the inner and outer would cause some deformation of the inner, unless the inner was strong enough in the first place to withstand the full pressure on its own. In the former case of deformation, the inner would then be impossible (or nearly so) to remove from the outer. In the latter case, you would be adding more mass & weight to the barrel (the outer) for probably no good reason. Now, if you machined the inner and outer to such tight tolerance that there is effectively no gap, you would now have to press fit two very long structures together. Even a fairly short press fit, like the pulley wheel on the power steering pump on a car can be rather unpleasant to fit or unfit. Now there are firearms out there that do have quick change barrels (most commonly, for belt fed machine guns). Most AR-platform firearms, while they don't have a quick-change barrel, have a simple enough attachment method that you can swap barrels in a relatively short amount of time, if you have the right tools on hand.
The VFD on the lathe looks scary.. unfortunately VFDs have a nasty problem with frosting then fluting the bearings on a machine..as stray power builds up on the electric motor shaft being powered to about 70v then finds ground / earth thru the bearings a few dozen times per second of use..at 600 - 700hrs serious damage has happened and the bearings need replacement.. but simply adding a ground/ earth strap to the motor shaft giving a path not thru the bearings prevents this entirely.. the better option is to have a rotary phase converter that powers each machine.. usually a single rotary phase converter is used for the entire shop being a one man set up..Cheers..
@@agentcovert Thanks for your comment, i put 4 points of the lathe ( One Is the Dahlander motor) to the earth, from 2017 when i installed the VFD, no problems.( 7 years until now)
@@allthingsconsidered3211 Thank you! Mine are not tutorials, i only try to explain how i make and idea, and the best satisfaction Is to received a comment like yours! Have a nice weekend, cheers from Italy! Alberto 🇮🇹
nice but say make one for a 30 caliber bore and say try it on a 24 inch long barrel that will be when i an impressed just saying what you have shown is just basic machining 101
Thanks, if you consider a cam built with a 3D printer you can easily reach 300 mm, therefore a 300 mm barrel; if you always have the cam made in plastic (because it makes no sense in steel if you don't make 100 barrels a day in series...) but with a CNC milling machine, you can easily reach 24 inches and even more, obviously it must have a larger lathe then mine: the limit is represented by the length of the lathe, with my lathe I reach a maximum of 150 mm; so, if you think about it, it's not really basic machining…
Another absolutely fantastic project.
Thanks for your wonderful comment Fred!!
Bene magister! I too am a machinist. I never tried such a project. I respect a master. well well done
@@pilgrimm23 Thank you for your comment, but master Is too much for me! 😂 Happy that you like my idea!! A big ciao from Italy, Alberto 🇮🇹
Cheers Alberto. Good to see you busy in the workshop again 👍 🇬🇧
Hi Matt! Yes! :) i need 1 month 1/2 to arrive to the end, to win a bet with a friend that now have to pay me 2 beers!🤭 No great pitch on lathe? Yes, It Is possible 😀
Nicely engineered, Alberto. Well done.
Ciao Greg! Very happy to hear from you!! Happy you think that about the video, first "how to make a long pitch", second " how to make a cutter that cut"! Ciao Greg have a nice week!! Alberto
Okay, I'm going to stop right here.......Pro tip....When using a telescope gauge. Open, and lock the gauge slightly larger than the bore you are measuring. Place the gauge in the bore on an angle, making contact with the top and bottom of the bore. With a smooth upward pull on the handle, remove the gauge from the bore, and take your measurement......you're welcome. = )
Edit; For bearing fits, don't use calipers. They have a tolerance of plus or minus 0.001". Use a micrometer. That's the reason your fit is loose.......= )
@9:30 also take a basic class in welding. Those welds are hideous.
That's a nice project. With a lot of thinking involved.
Thanks Rusti, not easy to make a cutter that have to cut 😀
I was hoping to see a gun or rifle barrel. Was that some kind of bushing?
@@RoyDees-t2k From what you write, you didn't understand anything about my video. Watch it again and maybe you'll understand something.
@@ab-shop😮
Awesome project! Any chance you have plans? Really interested in how you made the cam for the cutter to use a screw for precise depth of cut adjustments. Thank you!
Thanks for your comment! I upload the drawings on "Homemadetools.com", there you can find it!!
@@ab-shop brilliant, found it. Thank you!
@@termlimit You are welcome !
Very nice work. I believe this is called "single point rifling" and has been around for a while.
@@ZURAD Hi Zurad, thanks a bunch for your comment: yes It Is an old fashion work to cut inside a hole, my challenge was to make a small pitch ( like a M12 screw) in the same axis of a long pitch ( 1 turn in 250 mm) and this was my great satisfaction ! Cheers from Italy, Alberto 🇮🇹
How do you rifle a 30” barrel with that?
@@BobJury-lf6bb Hi Bob, with the home 3D printer you can arrive at 300 ( mm) so around 10-11" inches, but with a bigger lathe then mine; my challenge was to separate a long pitch from a short pitch ( like a screw) in the same axis.
@GoodPimpofTheNorth Like many you did not understand the meaning of my video, also if you do not like or do not share what I have built, you can move on to something else, you are not obliged to comment...
Wow, made my brain hurt just looking at the build. Nice job, Alberto.
Wow Is My answer to your comment, Mark 🤭 Thanks Mark! It was a long time that i tried to solve that " problem", a small pitch in the same axis of a long pitch! 😀
Wow! Alberto. Now I know why you have been so quiet recently. What a project. So involved. So many processes. Enthralling from beginning to end. Thank you for sharing. 👏👏👍😀
Ciao dear Andrew, thank you for stopping by! Yes first the "how to make a long pitch", after " how to make a cutter that cut 🤭", so It Is a tool and a machine in the same time 😀 Happy to hear from you dear Andrew, see you soon with a new project! Alberto 🇮🇹
This looked like a fun project and it turned out great, thanks
Thanks Joseph, the most big challenge until now...here in my channel !! :)
Looks good. very similar to the old machines they originally made to semi automate this process. more advanced than the musket bore OG wood one too.
Thanks William, you know i dream to make this device for 1 year, i decide to make it after the idler joint idea: before that the project was stuck! Another problem to solve was the cutter, in HSS not problem but in normal carbon steel not easy to make sharp edge, that It gas to cut like a knife!
Complimenti Alberto, un bel progetto 💪🏻
Grazie 😀orgoglioso ti sia piaciuto 😀❤️
So; I'm going to be really interested to see what this has been built for. That looks like it will be the real project.
Hi bill and thanks for the message, it is a machine capable of performing a "helix" cut with a pitch that is not found on a lathe, because threads with a pitch of 250 mm or more do not exist; it was a bet with myself to be able to build a compact machine that could do that type of work, therefore to rifling a gun barrel or to create slots for lubrication (spidering)
@ab-shop There is no better reason than, "I wonder if I can. Yes I can"
@@billdoodson4232 Yes really!!
Really like your choice of music
Happy, Dave, that you like it !! :)
Same ❤ 🔥
That’s funny. I can{t stand the music. To each their own.
I can't find the music - especially the first track. Can anyone tell me what it is?
it is a proof of concept thing and as you can see it works ! did he make any thing new you know invent no but he showed you how its done ! so if you scale it down and make the rate of twist form longer there you go ! that set up as is could do rifled choke tubes
You should take to the custom of cleaning before measuring, it will save you some trouble.
Also, maybe it is the video and the impression it gives, but your chuck seem slightly off-center.
Very nice work. Clearly you are very skilled.
I made a Clint Westwood design rifling machine out of scrap metal I had laying around.
It did work ---- sort of. The real problem is doing small bore rifling like .22 cal.
Your machine would only be good for large caliber like 9mm as is the Clint Westwood design.
Just my opinions.
CO
Это не совсем так. Сама конструкция прекрасно сработает с любым калибром.
Но сам резец, для 22lr, имеет другой вид. Он цельный, и роль и оси и пружины выполняет разрез в материале резца.
Представте себе цангу фрезерного станка, на одной из губок которой торчит зуб резца, а вместо фрезы - в коническое отверстие в середине - вкручивается винт, раздвигающий губки.
Вот так и выглядит резец для 22. Только две губки всего
@@olegplisiuk4687 Спасибо, что прояснили это.
Я обнаружил, что любой стержень, на котором есть резец для калибра .22, стержень очень маленький и будет гнуться, если только он не очень короткий, как у короткого ствола пистолета. О стволах под калибр .22 не может быть и речи.
@@canadianoddy8504 нет- нет! При нарезке 22 калибра - резец не толкается! Он тянется, и натянутый стержень становится ровным как струна.
Проблема в том, что он способен скручиваться, и не передавать резцу угол копира. Поэтому сам резец обязан быть с углом, соответствующим углу копира ( твисту), и тогда он правильно идет в металле
@@olegplisiuk4687 Теперь это имеет смысл.
Thanks to everyone for the comments, for sure you can get to 8 mm, the first version of my video was with an 8 (mm) head (in fact the central shaft has a thin diameter of 7.5 mm to be able to switch to minimum in an 8 mm hole) but then I encountered friction problems; it certainly cannot be used, given how it is built, for a .22 LR, in which case you need a "button tool", but also a hydraulic press, due to the high efforts it requires!!
nice, good idea, in the same lathe.
@@StanleyPerez-fo6xp Thanks Stanley for stopping by, happy you like my idea! Alberto 🇮🇹
@@ab-shop YOU SOLVED MY PROBLEM! THX U
Beautiful work!
@@Gunny-Smith Thanks a bunch Gunny, happy that you like my work!
I like this video it is amazing thank you for sharing to view and i wish your channel more success
Using a spiral slot to guide cutting tool is very primitive and limited. For over 160 years (since American Civil War) Sine Bar rifling machines (such as Pratt and Whitney) are the standard. You can easily adjust to *any* pitch (turns per foot) and long rifle barrels, up to 50-60 inches if needed. They can easily provide progressive pitch too. Spiral slot guides have only *one* pitch. And can only rifle their own length.
This is getting quite close to a sine bar machine
@fahey5719 Also, if you use a curved bar, you can do gain twist rifling. = )
What called this digital piece on your tailstock to have accurate measurement , i want to buy similiar
Hi and thanks for your comment: It a normal digital caliper that i modified to be installed on my tailstock: on my channel, if you search, you can find the video where i show how to make It, the only difficult thing it's the drilling operation, because It Is hardened steel!
Very interesting.
Thanks for sharing.
Was hast du da genau genau gebaut und was kann man damit manchen?
Guten Morgen, ich habe eine Maschine gebaut, die in der Lage ist, einen Propeller mit einer sehr großen Steigung zu beschreiben. Mit dieser Maschine können Sie beispielsweise das Gewehr der Läufe oder die Ölkanäle zur Schmierung erstellen! Damit habe ich eine Wette gewonnen, nämlich dass es auch auf einer Standard-Drehmaschine möglich ist, Bearbeitungen mit enormen Teilungen wie 1:250 mm durchzuführen.
this boosts my ego so much like y year ago i made in "cad" (it was tinkercad that aint really cad lmao) and exactly the same idea so many things about this are similar to what i made just what i did was a great idea just not enough expriance to make something like that that would be good great work my dude
What's this method called?
Hi Mutum, the method Is barrel rifling, It Is an old method with a new idea, putting in the same axis a small pitch and a long pitch ( i have described on the video information), you can make the longer pitch you want!
I would do the spiral with a 4 axis cnc mill with 4th rotary axe. I am actually upgrading my mill from 20x20x10 to 40x40x20.
Thanks for showing your project
Is that for a pistol with a 1.5 inch long barrel?
@@geppettocollodi8945 Ciao Geppetto non è per nessuna pistola, solo una sfida che ho voluto vincere da tempo con me stesso, si possono fare rigature di qualsiasi passo e su diametri da 14 mm in su, sotto è difficile per la costruzione del porta utensile che diventa laboriosa e micrometrica..si possono fare anche ragnature per lubrificante come quelle che si vedono sulle bussole delle macchine utensili. Ciao, Alberto
Very interesting. Good work
Thank you Rusty 😀
Your chuck is seriously running off-center. You need to re-set it. A three-jaw chuck should have almost 0 runout.
watch the video in lower quality and you won't notice it
@@MinnesnowdanSniper 👍
@@MinnesnowdanSniper😂
Fantastic video but you almost lost me with that TIG welding
Yes it was of pigeon shit MIG quality lol
Why not use a rifling button?
@@hulksmash6476 Yes correct, because i don't have a press! So i tried another way to arrive at the same result, using a mix of ideas, 3D print parts and lathe parts.
@ab-shop clock you bar (dti) in chuck and push through using tailstock with ejector pins of increasing lengths. It would be really cool to see you build a jig and maybe even put hydraulic cylinder, bolt to floor? I am no professional gunsmith dude, I did mechanical engineering but in injection moulding industry. Keep on keeping on 😉
@@hulksmash6476 Thanks for your comment, i will think about It, every new idea can be a new challenge and a new video!! A big ciao from Italy, Alberto 🇮🇹
very good idea
@@wellingtonrodrigues6659 Thanks for your kind message, happy you liked it! Alberto
Great project, awful music. I'd rather hear the machine running than that.
@@DClarke1954 Thank you for your comment: i know about It, in the last video i made music and machine sounds, to offer both! 😀 A great ciao from Italy, Alberto 🇮🇹
Лайк. Хорошее видео.👍
This video is worth a subscribe!
Thanks so much!!
nice project.
Thanks 😀
ciao Alberto vedo un progetto esteso -si parte da un idea fissa poi si disegna e via di tornio e fresa ..salda affila e montaggio - si un opera così definita è molto impegnativa ....però quel colore della camma ..mai visto....torce un pò la vistaa
Grazie Renzo ho scelto arancione perché attrae la vista!! Un super grazie per il tuo commento e non solo!!😀
Grande! Conosci la miss passione quindi non posso che dirti ❤
Grazie mille 😀❤️
you really should remove your wedding band while machining ... it's real easy to receive a degloving injury working with heavy machinery
Any jewellery is a potential issue (along with long hair, beards and loose clothing).
Very easy to have a life changing injury with machine tools.
All of that stuff makes me cringe
Yeah, and people have even had their finger torn off without rings, so just think about it.
You can get silicone rings to wear around the shop.
@@scottlidstone1902Just don't. It is the safest option
homemade ECM is the way, no need a lathe for that :D
You obviously haven’t tried to make an ECM machine without a lathe…
@@allangibson8494 you obvious dont know how ecm or 3d printing works and what can be done with them ua-cam.com/video/Fg_o9wQQaxs/v-deo.html&ab_channel=AmphoraVideo
and another one ua-cam.com/video/AyPJ2br5NFQ/v-deo.html&ab_channel=AGCast
@@adriandumitrascu4292you seem quite retarded to assume one needs 3d printing experience in order to understand a process that predates 3d printing.. 😂
Sure, mandrels and other parts can be made by any idiot with a 3d printer and a downloaded .STL that someone else made..
The accuracy and quality of said mandrels and parts is another thing all together.
At least a semi competent machinist can make one with a great amount of accuracy and also durability as they aren't anywhere near as limited with regard to material selection.
@@PaddyFromPaddistanit has been done many times with just hardware store parts and 3d printed, but like you said accuracy may be questionable, ECM barrel making with 3d printed parts was popularised by a guy called jstark, but yes the tech does predate 3d printing.
I'm not a gunsmith or machinist. But I have a question can you make the barrel in two parts one the shell and the rifle bore as sleeve of sorts that can be changed out as needed? Maybe using some screw from the shell to lock it in place? I haven't seen that or even know if it's legal😅😂 just seems convenient if the rifling fouls or damage happens? Also I guess you could but a new barrel altogether.
Given the extremely high pressures that occur inside a rifle barrel, I don't think that would be a good idea. Any gap between the inner and outer would cause some deformation of the inner, unless the inner was strong enough in the first place to withstand the full pressure on its own. In the former case of deformation, the inner would then be impossible (or nearly so) to remove from the outer. In the latter case, you would be adding more mass & weight to the barrel (the outer) for probably no good reason. Now, if you machined the inner and outer to such tight tolerance that there is effectively no gap, you would now have to press fit two very long structures together. Even a fairly short press fit, like the pulley wheel on the power steering pump on a car can be rather unpleasant to fit or unfit.
Now there are firearms out there that do have quick change barrels (most commonly, for belt fed machine guns). Most AR-platform firearms, while they don't have a quick-change barrel, have a simple enough attachment method that you can swap barrels in a relatively short amount of time, if you have the right tools on hand.
they do this with artillery barrels, you have the barrel and the barrel liner. generally not worth it for small arms
The VFD on the lathe looks scary.. unfortunately VFDs have a nasty problem with frosting then fluting the bearings on a machine..as stray power builds up on the electric motor shaft being powered to about 70v then finds ground / earth thru the bearings a few dozen times per second of use..at 600 - 700hrs serious damage has happened and the bearings need replacement.. but simply adding a ground/ earth strap to the motor shaft giving a path not thru the bearings prevents this entirely.. the better option is to have a rotary phase converter that powers each machine.. usually a single rotary phase converter is used for the entire shop being a one man set up..Cheers..
@@agentcovert Thanks for your comment, i put 4 points of the lathe ( One Is the Dahlander motor) to the earth, from 2017 when i installed the VFD, no problems.( 7 years until now)
👍🏻
i love your tools
@@allthingsconsidered3211 Thank you! Mine are not tutorials, i only try to explain how i make and idea, and the best satisfaction Is to received a comment like yours! Have a nice weekend, cheers from Italy! Alberto 🇮🇹
@ whats the tool head called and who makes it where u off center bore? (wooden box) really cool
Machine sounds are less disturbing...
I cant make rifling barrel tools only 5$
Just use pipe and rod,
Interesting video. Could have lived without the annoying muzak though.
You and me, both. Why do so many videos have this annoying crap musick?
Dont really know how can justofy home made if using commercial machinery
Home made to me means made at home with house hold objects
Difficult to make a stepper motor at home..
Посадку под подшипник прослабил 😢
@@Владимир-н2п1з i don't understand what you mean Vladimir!
Please dont wear your wedding ring when working I seen bad things happen to guys wearing a wedding ring and had have them cut off at the ER
nice nails
nice but say make one for a 30 caliber bore and say try it on a 24 inch long barrel that will be when i an impressed just saying what you have shown is just basic machining 101
Thanks, if you consider a cam built with a 3D printer you can easily reach 300 mm, therefore a 300 mm barrel; if you always have the cam made in plastic (because it makes no sense in steel if you don't make 100 barrels a day in series...) but with a CNC milling machine, you can easily reach 24 inches and even more, obviously it must have a larger lathe then mine: the limit is represented by the length of the lathe, with my lathe I reach a maximum of 150 mm; so, if you think about it, it's not really basic machining…
...nice job, dude.
@@scottdoran3112 Thanks Scott! Happy to see that you like my idea!