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3D Printed Rubber Band SMG - Free Models!
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- Опубликовано: 17 мар 2021
- Download the models here: www.thingivers...
Follow my prop development and release here:
/ props3dpro
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This works by loading bands onto a rear rotating square magazine which is kept from rotating forwards by a rocker. Note: Load the magazine with the bolt locked forward to prevent it from hitting the rocker.
When you release the bolt it will cycle backwards knocking a bulge on the rear of the elastic catch into the rocker causing it to rotate a quarter turn. This will load a band onto the catch, which is then held in place by the bolt getting stopped by the trigger sear. When you pull the trigger, the band on the catch pulls the bolt forward and releases the band towards your target, then another small band on the bottom of the catch pulls the bolt back and the catch hits a shoe again allowing the magazine to rotate another quarter turn. This repeats with a satisfying noise, the bolt cycling back and forth like a real open bolt SMG, and lots of rubber flying towards your intended victim, and good fun is had by all hopefully.
I think you'll find that if you load the last rubber band onto the firing wheel and then push the bolt down from it's lock position it will load the first rubber band onto the lever that operates the reciprocating bolt . This a simplified version of Parabellum's Space Stapler.
I have all the parts printed at home! Been sitting on them for a while as I havent figured out how to make it work BUT THE VIDEO IS FINALLY HERE THANKS SO MUCH!
Not only is this an absolutely genius design, its also really awesome that you make it publicly available like this👌
Very cool SMG geez rubber bands how wild is that!!
It's a fun print if you ever have the inclination :)
definitely building this for my nephew, he'll love it until he's old enough for a crickett
Btw incredibly fun build. Everything printed beautifully. Printed one on my E5+ and one on my E3. I did the full model, both sides on my E3. Cause I HATE glueing parts together lol.
Me too, nothing worse than gluing something together and a part breaks. I don't mind gluing, it's ungluing that gets me :D. Figured with all the mechanical bits I'd make it user serviceable. Have a better one using a similar mechanism I'm releasing in a few days, just waiting for the paint to cure so I can film. DM me if you want the models in advance, I can't post links here.
@@Props3D Forgive my ignorant but I'm not sure how to send you a DM on here.
@@robinholmes664 haha, you're right. I'm just about ready to post it anyway, just waiting for the paint to cure so I can take pics.
Subbed really cool build!
Subbed, cant wait for M41A Pulse Rifle build
Wow, I am your fan !!! thank you for the video
Extremely good.However, it would be better if the size of the 3D printed part could be broken down into smaller pieces
You can use popcorn, peanuts, or grapes as ammo.
Printed everything, assembled. It works decent but I had to shorten some of the rods and the magazine doesn’t work that well but that’s because I made a piece to short. Otherwise it works fine
Anything you think can be improved?
Other then the magazine rod holes so it doesn’t fall out during assembly that’s it. Anyways have a great day man
Sweet! Thank you!
this looks like some good wholesome fun. What's the smallest this could be scaled down? I'd love if I could make it half the size
I think someone scaled it down 30% with no issues, there's no reason it couldn't go smaller if you have small enough pins
@@Props3D i was hoping to find somewhat of an answer because all i got is the normal rubberbands, since it looks too big to stretch the nornal rubberbands i have
Your rubber bands look more thin and stretchable so i wanted to find an anwser to how small i can make
Amazing!
I'd personally want to edit it to a p90
can anyone find the right springs
Hi there, so excited to build this model, quite ingenious! Do have a quick question, how do we attach the first rubber band that connects to the catch mentioned in 6:05 of the video, V6 frame doesn't have that hole for a screw. Just wondering if there's an alternative method for connecting intended or if we just need to drill that hole. Thank you!
looks liek a vector kriss!
Ha! Great stuff :) Thanks for that :)
I cant find the hole for the screw on 6:04
what size is the rod you used for pins?
Cool build.
1/8in steel rod. thanks :)
Thanks for this model, i love !
Maybe new version with bigger loader ?
You mean a bigger magazine for more bands? If so I'm working on a magazine changing model that'll have a higher capacity. It'll be done... well, when it works reliably :D
@@Props3D yes, sorry i don't speak english very well. And, nice !
@@ProfSaesee No worries, just wanted to make sure I understood your request. I only speak one language so you're way ahead of me!
@@Props3DOh wow that's super cool! Any update on that model?
Now
I made it real
To bad you don’t do commissions for this gun! I would buy some. (I have ender 3 pro so I can’t print it)
I may, it's just a lot of print time, over 24hrs. So rolling around what would be a good price. Too low, not worth it. Too high, not fair. I hate pricing this stuff out.
@@Props3D that’s reasonable. Anyways this thing is amazing, I showed the video to a few people and they were very impressed
I printed one of these on an Ender 3 v2. There is a version of the model that the rear portion of the frames is cut into a separate piece and can be printed and glued together. I printed each half of the frame together (left front and left rear in a single print, for example) in one color, and the internal parts and buttplate in another color. Turned out great! I highly recommend you give it a try, even though it doesn't fit on the ender 3 in a single piece.
@@mrkoren I will, if it works I will definitely tell you.
@@mrkoren I am printing it now
Would you be able to send some amazon links for the Spring and Rubber Bands you used?
That’s so fucking cool
Why are the bolts sizes different from thingverse ?
I'm not sure what it is but after I load up the rubber bands and pull the trigger nothing happens. After reprinting several parts and reassembling it still nothing :/
where does it get hung up? There's a lot of inaccuracies between printers so you may need to sand somewhere (just a guess). If you can send me a pic or a vid I can help determine where the issue is.
how many grams of fillament ?
depends on your print settings of course
super video
do the rod pieces have to be metal, or could I 3d print them?
hmm, If you're printer is dialed in it'll probably work. You can also just cut the ends off some M3 bolts or equiv.
@@Props3D I wonder if resizing the holes to 1.75mm and then using filament cut to length would work.
Would it be any bit possible to use 3d printed screws instead of the metal ones. Also would it be possible to use a bit of filament instead of the metal pivot points?
I haven't had much luck with 3D printing screws, but you could glue it. The metal pivots could be made from 3mm filament probably if you had that, it's not common these days but it used to be a standard filament.
@Props3D ah yeah, I ended up using a 3.15mm nail and angle-grinded it down to size, was a little big for the holes but nothing a quick drill couldn't fix. Also just went to my local hardware store and got the screws
Hey props 3d, your rod sizer part wasnt in the thiniverse zip, I cant find it, is it there and Im just blind?
I cleared the files for the last version and forgot it, it's there now.
@@Props3D cool thanks so much!
@@mintgardener Send you an email :)
@@Props3D received :)
Hey props, is this the V5? Because I just printed the V6 from thingiverse and I'm struggling assembling it.
The only big difference in assembly is that the band that holds the catch for the magazine goes around a post instead of a screw now. The other tweaks were to fix cycling issues.
@@Props3D Thanks! I think I'd prefer the screw since the shape makes it harder for the rubber band to slide out. I tried some 25mm rubber band without success, it's so hard to find 20mm robber band somehow. Anyway I found some on Ali Express, back to this awesome gun in 3 months when I receive them :P
@@chetus88 the 'BAZIC 465 Multicolor Rubber Bands' from Amazon has them cheap. There were more complaints about the screw than anything ever so I changed it, when both halves are together it won't slip, I can put a mod up with a ridge to hold it in place in a few days, but you'd have to reprint one half.
@@Props3D Thanks that would be great! I wouldn't mind printing it again, I'm not completely satisfied with my print (tried some carbon fiber PC CPE). I believe it was mentioned but it's also very difficult to hold the magazine rod it would be much appreciated if you could do something with that :)
@@chetus88 How to you mean difficult to hold? Like hard to line up? Doesn't stay in place? Give me some details and I'll add it to the update.
You're really cool :--)
With the spilt version do I just glue it together?
yup, superglue will hold just fine
Where in the world did you get the Looms? I bought some from a local craft store but I don't think they're strong enough. My lever doesn't pull back by itself.
I got them in an assorted bag from Amazon, did you try doubling them up?
@@Props3D yes I have tried to double band them. I'll get one good burst and then nothing every time after that.
@@robinholmes664 Maybe they're not the strong ones then. My kids had tons of those and the quality and thickness varied from company to company. I'll see if I can find a link
What Settings did you use for the support material?
I print it outside down to minimize the amount of supports needed. Nothing special otherwise: .1 contact, 2mm, rectilinear, 55% overhang
Slap a P90 magazine on it! 😁
I think you may have given me the best V7 idea ever. I do believe I can do a P90(ish) style top loading mag on it that cycles the mechanism though a lever so you can swap mags... Off to Fusion360!
@@Props3D yeah you could store the rubber bands in an external magazine. Then it would be a quick reload and super cool
@@Props3D are you going forward with that idea? i was going to print one soon, but if this is coming out, i might aswell wait
@@Protoxide22 I took a look at it and decided I might as well start from scratch, the latest version is flawless in function so I don't want to mess with it any more. I'm going to do it in a kel-tek P50 style shell since the whole top swings open. It'll take me a while though, I have a few others in progress to get done first.
@@Props3D Can't wait to see your new rubber band gun with magazine! Any progress?
what hand drill did you use? thanks!
Google "Pin Vise Hand Drill .5~3mm" and you should get it.
a rubber band p90!
Bic lighter spring
I did a little upgrade.... it has recoil
What did you do?
Wd-40
AAAAAAND *_ANOTHER_* gun based on my invention without anyone knowing that it's *_ME_* who first came up with this coz people don't ever give designers of stuff they use in their own creations credit anymore!
Comment #1 on this vid: [You copied the Space Stapler!!!] I never heard of it at the time, but yes, VERY similar action. I got the concept from amazing hand made Japanese rubber band gun and reverse engineered from looking at how it worked, I link to it down in the comments. Either of those designs may predate yours, no idea. Did either of us invent the rubber band gun? The concept of a gun? No. If you're going to put something out there, someone MAY copy it. So what? I give away all my models, code, etc. and fully realize people may 'copy' or 'borrow'. My thoughts: I've empowered someone to be creative! Awesome! Relax, take a breath, and have fun. edit: To those who read too far into this comment, this does not selling my models verbatim, personal use only!
@@Props3D Go and take a look at my video "All new full-auto blowback mechanism (LOTS of brain power required!)" and then good luck finding anything with this mechanism that predates it! I've invented this mechanism and the first gun using it that was made by anyone other than me was made almost 2 years later!
Countless people have infact been *_PROFITING_* off of it since and no one ever mentions me despite me being able to *_PROVE_* that I'm the one who first came up with it!
Is it really asking too much to simply name drop the original designer of something so popular!?The fact that people aren't willing to do something so simple, with zero cost attached to it (in fact I'm not even asking to get a share of the profit that some people make selling my idea!), is why I've stopped making instructions for my lego guns and will never make any again!
@@DualDesertEagle I've never heard of your channel, and lots of people are using variants of this mechanism. At a certain level it's a common sense variant of the wheel magazine design that's been around longer than either of us have been on this Earth. Soo happy to talk with another creator and discuss, but not get vented at out of the blue. Oden Makes just did a PVC core 3D printed lightsaber, something I came up with many years ago, am I going to say 'you stole it' to him? No! Either he saw mine and took his own spin on the idea OR, just maybe, it was a practical idea and he came up with the same idea on his own. Either way it was a great video. You see the rabbit hole here? If you want to discuss civilly, let's talk! But if you want to rant, sooo many videos use variants of this mechanism that predate mine, go take it up with them. Anyway, hope you get back to making content, Chris
@@Props3D I've been fighting to make people credit whoever originally came up with the stuff they copied ever since people started rebuilding the lego guns I initially had instructions for (and that was long before I made this 3rd of 3 channels) without mentioning me even once! So I've been at it for well over 15 years, and all I've ever been asking for is to mention my name whenever someone rebuilt something I'd designed myself or, occasionally coming across such videos aswell, asking to mention someone *_ELSE'S_* name when someone rebuilt stuff I recognized to be someone *_ELSE'S_* without mentioning *_THEM!_*
There's nothing wrong with rebuilding cool stuff found on the internet, in fact I was proud that people liked my guns enough that they wanted to rebuild them, that's why I initially made instructions for a whole bunch of my guns, but at some point I just had enough of the constant "stealing" of my designs (meaning people who rebuilt stuff from my instructions refusing to simply *SAY SO!)* and deleted all the instruction videos!
From that day onward I never made any instructions again, and some people got so fuckin' worked up over that fact that they decided to be a bunch of a$$holes and leave hate comments and dislikes wherever possible, and then going around telling everyone how "mean" I was when they got an according response!
Oh, and btw, I am still working on a new gun I've in fact been working on for more than 2 years on and off, but as u can tell from my latest guns not only are they getting more and more complex (especially this current can of worms of a project), but this constant rebuilding and profiting off of my ideas with barely anyone knowing their true origin has also taken its toll on my motivation, so whenever I run into the next problem right after fixing the previous one I tend to just throw the thing back into the drawer and not touch it for another several weeks, if not months!
@@DualDesertEagle Honestly, look how you come across here, virtual fists swinging with bold, caps, and italics with accusing language, can you blame people for being aggressive back? If it wasn't for the fact that I clicked on your first video and saw how awesome your work is there's no way anyone in their right mind would, or should, engage with you. So, for the second time, if you want to engage civilly, let's talk, if not, I'm glad you got this all off you chest and let's call it a day. edit and addition: You're also sorta killing me, I usually don't engage with instigators, but I'm going to double down on how cool your work is, attitude or not I love what you're doing!