Welding Together 3D Printed Parts
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- Опубликовано: 27 сен 2019
- People often ask me what the best way to glue together sliced 3D prints is, and I thought I'd throw together a quick little video showing how I use spare filament and a hot knife/woodburner to weld parts!
A cheap wood burner that does the job: www.amazon.com/gp/product/B00...
Noob Saibot model used in video: www.etsy.com/listing/71713456...
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Развлечения
A nice quick was to save a lot of filling with a material that doesn't sand the same as it's surrounding material. I do this also and use a needle file to do the initial clean up before sanding.
that is FUCKING GENIUS THANK YOU FOR SHARING YOUR WISDOM 🙏🏻❤️
Real welder here with 40+ years of experience on steel, aluminum, etc. New to 3d printing though, like 2 maybe 3 months. Glad I watched this. This will more than likely help with my million % failure rate, slightly less lol. If your concerned with strength, or permeability I'd suggest v grooving one side or the other after you've got it tacked together. With steel, or what have you we generally try to get as close as we can to 100% penetration as we can. This may not be necessary for cosmetic doodads like that mask that don't have a function that takes abuse or needs mechanical strength. Just an idea.
Thank you for that info! We admit we've never done real welding just this version of it :) we'll definitely give it a shot the next time we need to weld parts!
hey thanks for the recommendations man. good work!
like what youre doing, i use a soldering iron to do really big holding bits like this. you could get a 3d printing pen would really help you and be super quick for this application. it actually pushes the molten filament into and through the crack too
Awesome, thanks for sharing.
Thanks for the video! I'm going to be applying primer and paint on my prints so hopefully that will be enough to cover the welding beads.
I found your video because i was looking for a method similar that just came into mind. Actually what you are doing is more like brazing rather than welding, but yeah it does the job i think. What i am actually thinking is making the parts with holes, and use dowels as well, or some kind of rabbet joint. But thanks, you just confirmed my idea works, even i did not invented the tire :D
Thanks for the tips!
Happy to help!
hey thanks man. really appreciate this video!
Nice video bro
Great video! Just be really careful doing this guys. CA glue (superglue), zipkicker and heat are a bad combo for fumes and vapours. Get a mask, do it in a well ventilated area and grab a fan if you can. My dad worked with this stuff for decades and he's now unable to use zipkicker as his body has a bad reaction to the fumes. Thanks for the video my friend & happy making!
Absolutely agreed! We probably don't say it enough in our videos but we try to always wear a respirator or at least a dust mask when we work (depending on what we're doing) and we have a high powered air purifier/filter running almost non-stop!
@@SionnachStudios Awesome. Love the content ♥️♥️
You‘re the man
i have some prints where i printed too fast and i have some small holes on certain sides and this is how i fix those holes lol. i get scraps like brims or from the poop chute and i use those to fill the holes. works real well to save a print. i considered a 3d pen but then again you need to smoothen out the filling from using a 3d pen so this hot knife was a better option for me.
Jesus christ the intro triggered my fight or flight for no reason
Have you ever thought about using a hot stapler for joining prints and adding strength?
Never even heard of such a thing. 😁
Is a soldering iron better or as good as a wood burner or is a wood burner really the best option? I have access to both if necessary
If one has interchangeable tips and/or variable temperature, we'd go with that. In general, if either has those options they are pretty much the same for this type of work.
The issue I have with this (and I guess the question) is strength. It didn't penetrate, so it's just being held together at the surface. Would be nice to do some stress tests.
It really depends on the part and your usage. We mainly print things to be mold and cast so we don't usually have to worry about strength beyond making a mold. If we are using a printed piece that's been puzzled together for a finished item, we'll often back it with resin to further strengthen it.
@@SionnachStudios Ah, I see. Makes sense. Where/when would you apply the resin?
Couldnt you just apply a small amount of super glue to the filament, along the repair line...so, it stays still as you heat it?
I'm sure there is a detailed scientific explanation but heating glued filament gives off noxious vapors and smoke that are likely very bad for you. (We learned this the hard way). Sometimes we'll use transparent tape though as it wil melt away easily!
If you sand down the extra does it get rid of the seam line?
Sometimes, usually it just fills it up so it's smooth but that should make it easier to hide with paint
Awesome video! I was wondering, could a 3d pen be in place of hot knife?
We do have a 3D pen and use it sometimes but in general find its even harder to get into tighter spaces than this method. Also, while it does give a thinner 'bead,' we found it still requires smoothing with the hot knife in which case its usually just easier to do it this way and all in one step!
@@SionnachStudios excellent! Thank you for the input!
Don't you need a reparator? What do u use
Can you PLA-weld on underextruded layers? Sometimes I will get a random underextruded layer even after drying the PLA, but wondering if this can be a solution to a single layer or two. Thanks!
it depends on the amount of under-extruding, but generally yes you can
Could you use waste filament from old supports?
Absolutely! We actually do that frequently, especially if we need to fill a weird spot/shape/size gap!
@@SionnachStudios Ah thanks, thats good to know. I have so much waste material, its good to know that it can be used rather than thrown away!
Would a 3D pen work instead of a hot iron?
I imagine it would work for smaller prints, however the larger in scale the less likely it would hold.
Can you weld without using filament?
You can but it highly depends on how many walls and the infill of your print. Because you're melting the plastic it will almost I variable shrink so using the filament fills in the gap.
mate, i love bjb but just use baking soda with the superglue to bond instantly
can you give a bit more info on that?
Could PETG be used to weld ABS parts?
In theory, if you're melting plastic, they should work together ok as long as the temperature is high enough to melt both enough to bond them together.
Hi i just had a question how hot do you have your wood burner? I ordered kne but the lowest temp is 200
The one we have is an old one that doesn't have a temperature control so we actually arent sure how hot it is! The temperature PLA prints at is between 195-220 so for PLA at least 200 should be fine. Applying more/less pressure and moving the wood burner more or less quickly well help manage how the plastic melts!
@@SionnachStudios thanks man, great content on your youtube btw
So apparently they sell a power cord with dimmer switch at auction sites incredibly cheap. If it gets too hot to work with, simply plug it into the dimmer cord.
How about a 3d pen?
We do have a 3D pen and use it sometimes but in general find its even harder to get into tighter spaces than this method. Also, while it does give a thinner 'bead,' we found it still requires smoothing with the hot knife in which case its usually just easier to do it this way and all in one step!
This is great but it has some pros and cons:
Pros: It's really strong as if the 2 parts were printed together.
Cons: It most of the time burns your prints so I used white for it and it was a misfortune.
Just paint it
@@VeryJUICED Yeah actually I will.😀😀😀
Be carefull with the fumes when burn super glue its really harmfull, that smoke in yours eyes hurt like hell, tell for experience, use the least amound posible, to really penetrate with the molten pla and get the stronger bond
I would use tape. Make a few welds then you can remove it. Breathing in that burnt super glue is VERY bad for your health