Homemade Plastic Injection Machine Works With 3D Printed Molds | INJEKTO 2.0
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- čas přidán 2. 06. 2022
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INJEKTO 2.0 is finally here! After inventing our original desktop plastic injection machine, we promised you all an improved version that can be used with 3D printed molds, and we succeeded. NO MORE NEED FOR OUR DIY CNC MACHINE!
This homemade machine works great in tandem with SHREDII, our DIY plastic recycling machine, to turn old 3D prints and other plastic waste into pellets that can then be injected into 3D printed molds.
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Check out some of our latest machine builds:
We built a 3D Printer Scrap Recycling Machine (SHREDII 1.0)
• DIY Shredder Recycles ...
We built a Tiny Injection Molding Machine (INJEKTO 1.0)
• How We Made A TINY Inj...
We built a Wire EDM
• How We Made A Wire EDM...
We built a CNC Machine (DIY CNC)
• Homemade CNC Machine! ...
We built a Plastic Injection Machine
• Homemade Plastic Injec...
We built an EDM Sinker
• Homemade EDM Sinker
We built a CNC Router
• HOMEMADE CNC ROUTER.
#engineering #diy #machineshop #homeshop #diyprojects #diyproject #mill #machine #machines #injectionmolding #plasticinjection #plasticinjectionmachine #molding #moldingmachine #injekto #science #3dprinting #3dprinter #3dprint #3dprinted - Věda a technologie
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MAKE A Mandalorian iron INGOT MOLD AND USES THE SAME COLOR PLASTIC IN IT TO MAKE Mandalorian iron INGOT
Ey dude, the game is done, nice nice nice
what a time to be alive. affordable 3d printers, CNC routers, and now I witnessed someone injection molding in a somewhat amateur setting. fantastic
It sure is a great time to be alive! Do you have a homeshop?
On the note of Shredded Bottles, I don’t know if you know this already, so sorry in advance if I’m “preaching to the choir”, but the PET Plastic they are made of goes through Hydrolysis if even a small bit of water (vapor) is left in the flakes. So Drying the flakes and keeping then dry will be key. Beat of luck in that, I’m excited to see the results !
Nice improvements.
If I can suggest.
1) Use phenolic materials as heat blocks. They are cheap, and easy to machine to shape.
2) Your ram is tight tolerance, great. However, if its expansion rate does not match the heat column, you can get it to jam. Normally in injection molding, to reduce leakage. You add small machine ribs or groves to the piston or ram. They will act as material collectors and reduce leakage without having to use tight tolerances. Similar to this design found in Injection Molder Valve gate assemblies. Or on shooting pots.
3) Always use heat paste for the installation of the heater cartridge's, reduces the chance of a hot spot and its a failure point. Same for the solid state relays, they should always be installed with heat paste on the back.
4) How are you mitigating the chances of a runaway heater control or the solid state relays? Both can fail in a close state. Does the E-stop control kill voltage to the heaters as well? Do you have a central E-stop?
5) Would always recommend to have a source of water nearby as you run the equipment. A simple bucket or pail filled with water is better than nothing. If plastic shoots out and gets on bare skin, the natural reflex is to grab the material with the other hand. And now you are burned twice if not wearing gloves. Throwing your hand or wrist into a bucket of water is far safer and minimize the burn damage.
Whish I had one of those machine 10+ years ago, would have made my life easier in prototyping.
These are really great suggestions. I agree with all of them. Thanks, Dave
Really love this design. This would be great for anyone trying to build a microfactory in their garage!
My favorite part about the community is the incredible design enhancement comments below. I was an injection molding foreman years ago followed by mold setting technician and later did some extrusion blow molding as well. Years later, two years ago, bought my first 3D printer. Right now I'm looking at a desktop cnc, laser and frankly, adding the injecto would give me four methods of producing parts for robotic design. The four together should provide the variety needed for creating most any type of part necessary.
Great work guys. Love the Injecto! Love all the great feedback for improvements!
Love the idea and build quality of the injecto 2.0. Just a thought, it might be a potential idea to add a micro controller to make operation easier and potentially automated. A user interface and automatic volume injection amount would be ideal so there is no guess and check on an expensive mold. Great work so far!
Excellent work guys. Glad to see the 3D printed moulds solved the cost issue!
Been waiting for it, machines are made so professionally that it's probably best on CZcams
I work in an injection molding factory and I can ensure you you did a great job. Bravo!!!
I have been anxiously awaiting for this! Well done guys! You have solved nearly all the shortcomings I noticed about the previous design. :)
This is incredible, literally was just talking with my buddy about injection molding our project and how expensive it was, and then boom found your page. VERY impressive guys!
Great to see this mold machine will fit on someone's desk and perform what is designed for❤️
This is an awesome design! I'd recommend a floating joint from that push rod for the plastic and the crossbar that links the cylinders. Any misalignment of the rod and the cylinder that holds the plastic will destroy the tolerance you have on those 2 parts. I work as an automation engineer and the biggest failure point for pneumatic cylinders is misalignment. I think your cylinders will be fine (unless they move at different times). I think its a small change with big benefits. Its also very easy to judge a design from the outside looking in. Non designers love to criticize and say "this design is terrible its the worst thing I've ever seen" so this is not one of those comments.
Overall GREAT job but that would be a small change that I would make. There are probably a million right and wrong ways to do this but overall you did a bang up job!
The stiffer crossbar is a good upgrade, based on experience, and looks promising. Another solution, though it requires considrably more vertical space and has issues related to rod stiffness (that can be overcome by using less slender rods) is to drive the plunger with a single cylinder. This machine is very similar to the way thermoplastic injection molding machines were built (for a very short time) prior to the invention of the reciprocating screw, and the good news is that most commodity thermoplastic resins (like polypropylene) have a pretty wide processing window regarding melt temperatures... and low melt index resins, such as those formulated for extrusion, tend to be more forgiving than high melt index ones.
First things to go will be the piston and barrel and cartridge heaters aren't always easy to replace, so there'll be a market for spare parts.
Amazing job guys!! It would be awesome to see some videos of your engineering design process. Maybe like a behind the scenes CAD and CAM session
i would love to see cad/cam stuff also!
Some Ideas for Version 3.0
-Powder Coating the Aluminum will result in a super high quality look
- A Blast shield that you can lower and raise in case the mold breaks to protect your face.
- Measurement lines on the rod on which you adjust the limit switch. So that you know how much Plastic will be extruded.
- A Fan that turns on when things get too hot or you can turn on by yourself so you can cool down the maschine after extensive use
And for the molds:
-Ive seen people using aluminium outer rims in which you place in the resin molds. So that you dont have to print the molds extremly thick.
-Aluminium will be better to clamp or screw together than resin since the thread are stronger. So you can add holes with threads on the aluminium outer rim
Great ideas. Thank you. We were trying to eliminate the need for CNC machining and hence eliminate the aluminum, but that is a good idea. Cheers, Dave
@@ActionBOX I remember seeing these aluminium mould 'blanks' being sold somewhere, but don't remember where. I think TheCrafsMan used them.
@@ActionBOX Have to admit Your channel as well as Your work has come a long way. Have been watching you since the EDM wire cutter machine.
I had a request/suggestion to make...
Could you please test these and post a video
1. using a 3D printed FDM Pattern to create Plaster of Paris Mould (preferably reinforced with hay for strength) and lubricate the internals of Mould with oil to prevent sticking of plastic with POP.
2. Instead of POP using pottery clay around the FDM 3D printed pattern and then cook it to get the mould.
With the test Also find answers to:
1. Do these kind of moulds do the job?
2. How many parts/injections do these semi permanent(yes that's the objective) moulds can take?
3. Do they have adhesion issues with the parts?
4. Do they provide necessary finish to the parts?
5. How economical/costly are they compared to Aluminium or Resin printed Moulds.
Something to consider for a future version if you're worried about the heated chamber overheating the assembly, you can use thermally insulating mica sheets. We used these at my previous job to insulate the tooling from heater blocks for hot plate plastic welding machines.I would source them from somewhere other than McMaster Carr since their sheets tended to break down after only a few hours of tool use.
As I said on your shreddy video, this is an amazing project and I am all for having hobbyist ways to recycle plastic waste. When I have the disposable income for tools again I'll definitely look into this.
as someone who's worked as a mold tool machinist and a press operator i approve.
those were my 2 most stressful jobs and im glad i got out of them.
it would be more fun to do this at home where you control everything and dont have past due deadlines and can take bathroom breaks as often as you need to.
Brilliant! At first I just thought your videos were average, but you have really started to show how great you are
The youtube algorithm recommended your first version to me today, was incredibly excited to see that the follow up is already out :D
Love how you guys showed the first assembly method wasn't the most optimum one and then gave a better one! 👍👍👍
Thanks, we appreciate it 😃
wow this could be revolutionary in small manufacturing! Really love this idea, hope to see more!
Amazing product, I have been 3d printing for some time but this would enhance certain projects, great job guys :)
This is definitely great! I also was surprised to see how the resin prints did withstand both temperature and pressure...
About the possibility of plastic ejection : it would be neat to have a polycarbonate shield in front of the mold, perhaps a swiveling one, or snapping on one?
Anyways, the 2.0 kit really ties up the loose ends from the 1.0.
this! getting molten plastic sprayed in your face is no joke, and a clear plastic shield is enough to stop it.
@@gydo1942 I don't know if you are trying to be sarcastic here, but a 5mm sheet of polycarbonate will definitely stop a blob of hot plastic. Polycarbonate is used to make riot police shields, and also bulletproof clear protection...
If not, sorry, i read this as sarcastic while it was not.
@@AudreyRobinel I was absolutely serious. Safety first!
love seeing builds like these. I hope to be able to make things like this later on.
Omg you guys actually did it! I'll have to grab one of these ASAP
Very cool system and some beautiful machining results.
Thank you 😃
Fantastic!! Great job guys!!
I really like the recycling mindset in your videos lately.
Looking forward to the bottle shredding results in the next vid! Nice work on all the progress you're making, keep it up!
What a fantastic job you guys just did 👍👍
This looks like what I've been looking for!
Great product and video guys, well done!
Fantastic!! Congrats!!!
This would be an absolute game changer.
super awesome, cant wait for more!
I like this.
I was involved with a shop that started off using the resin cured molds as inserts into MUD units for prototypes (master unit dies). CNC aluminum was good for lower volume but is significantly higher cost in mold size. we were working to lower that cost to entry industrially. The primary limiter was the heat history of the plastic mold. though the resin cured was better than standard filament 3d prints, the heat would soak into the outer sides, usually blowing out the parting line, as it's harder to scrub the heat in that region; where there is little active cooling.
Adding cooling lines in the prints didnt seem to help much as a trade off. Wall thickness of the resin mold had to be near double the part thickness to stand up to the injection pressure. (which was often 10K -20K PSI on smaller machines)
in addition, the more heating and cooling cycles would make the acryllic, or composite resins degrade over time, even below the plastic transition temperature. Some compatabillity issues were found between resins near their transition temperature and the mold surface temperature.
Painting an SLA with silicone to make a negative, and then casting a surface with an epoxy is allright for several swapp-able units; but in short order, you want to switch out to aluminum for prototyping. A thin skin of foil, or composite pouring resins (graphene, carbon black, copper flake) helped with heat scrubbing, but Resin casting and time cost adds up relatively quickly. Tolerancing on casting is good though. Shut off on parting lines were an issue (again, heat buildup) at small lot runs when you wanted to get up to production speed.
Some solenoids in the bottom of the frame would be ideal to help with the ejection of parts -- but that's more of a bottleneck if you have fast enough cycles to make the heat scrubbing an issue.
I like the bigger cyllinders, Often the injection speed is the limiter with the shot size. Venting and part geometry relative to the sprue helps with flow to reach further in the part shape. All kinds of fancy gating can be used to sidestep the machine limitations. The trade off is the more runner you add, the less part you get for your shot size. high end hot runners and valve gates are theoretically a choice; but I suspect part orientation in the mold and shortening the runner with several gates to fill will optimize given the low-cost-protoype constraints. There is a fair bit more done in the DFM for injection molding to make a part and a machine compatible. if your max shot size is 27 grammes, that's a good size -- but I'd bet there are limitations keeping you between 22-25. Would be willing to discuss more if desired.
I would be interested to see some ideas for how to make this more durable. The next step up in price from a unit like this is a 10K screw driven desktop molding machine -- so this is super accessable; right around the cost of a basic 3d printer.
if you can make polyCarbonate accessable to the hobbyist without using aluminum with a benchtop press -- that's a huge barrier to entry for 3-d printing. Injection molded part strength is better than cast, SLA or FDM for prototyping too.
Very exciting project, great execution you guys.
I really enjoyed reading this. Thank you for sharing 😃
This looks simple and robust and I really like what you’ve done here. I have been looking for a system like this. Could you post some additional videos of the machine producing more detailed parts? I’m curious as to how it might perform when producing a 1/12 scale action figure head, for example. Great job!
Will do in a follow video. Cheers
Great design. I was amazed watching your product working so well. Your design is sturdy and still small. I would be very excited to have one and test it out for my projects. I was already excited about version 1 but this is much better. Great work guys!!
Nice, I’ll need this in the future
Great video, looking forward to what comes next.
That cross bar is THICC. Love it.
Token comment for the algorithm- far cool dude!
This is awesome, great work
I think it would be nice to have an mesurement scale with the stop plate. So that you could fill the mold more acurate.
You could do this with an ruler behind the rod or if the tollerances alow it, laser engrave it into the rod.
You can calculate the volume of the empty mold to know howmuch plastic is needed. And calculate how much the injecter should move to inject this volume.
You guys kick ass, keep changing the world for the better!
Thanks so much for your support Ross! We always love to read your comments on our videos! Cheers, Alan
@@ActionBOX You guys are the only youtubers I've ever and probably will ever donate to. I've got a programming background and kind of switched to cad/engineering in these last couple years, so I have a rough understanding of how long it takes to figure all this stuff out, and you guys just blow me away. You two have made so many things that I've needed that it's not even funny. I don't have the money currently, but I will be buying one of those injectors once I do. Like seriously thank you for doing this.
This Shredii and injekto series has me on the edge of my seat like the mandalorian series! Great job guys! Excited to see the next video.
looks really cool
That would look so cool for my resin models
Very interesting. Looking forward to seeing more.
Freaking amazing... I am speechless. Keep it up.
Thanks Larissa 😃
Impressive video! I really like the thoroughness - you covered a whole array of things and uses and workflows and considerations! Very cool!
Glad it was helpful! 😃
You guys are really Top Shelf …. ⭐️⭐️⭐️⭐️⭐️ content, concise presentation, sound engineering practice and engineering economics (safety, function, cost) ….. 👍👍😎😎💪💪
This is awsome keep up the good work.
Holy moly, imagine winning this beast :D id cry!
You guys are doing a fantastic job at R and D in order to find out what works best, but most of all what you think the customers would love.
Thanks 😊
Well done. Kudos.
Awesome sauce guys!!!
Awsome machine and just what the market needs, I will be buying one myself just as soon as I move into my new home
Sweet, thanks Adrian. I look forward to your order. Cheers
Would love to have one of these, I was making pinball mods with 3d resin but found that it’s really not suitable in certain circumstances, keep up the great work.
Awesome work... the double operator switch is real good idea.
Thank you Scott 😃. Im glad you enjoyed our video. Cheers, Dave
Great Job guys
this looks amazing
there is not a lot of things I would recommend for this, I think the only thing would be glass fiber tape on the top and bottom it's a high temp tape that should make the injection chamber both more snug and more thermally isolated from the frame
Injecto is truly one of the last components in a home production line that we've been missing. Wish I could afford one for my own garage... It'd basically bring me to having almost nothing I couldn't fabricate.
Yup, it's quite an awesome machine!
You guys got the skillZ
Good job guys !
damn, you weren't kidding when you said it was better than Injekto 1.0, this is really really refined, Good job guys and amazing video 😄👍.
Will now be waiting for the shredii 2.0 video after that massive cliff hanger 😂😂
Hhaha, thanks Divyansh 😃. I’m glad you enjoy our content, and I appreciate your comment. Cheers, Dave
This is awesome
great design
Holy crap that is pricey. Great video looks so cool. I want one.
yeeeeeeeeeeeesssssss, I've been waiting for this one :DDDDD
commenting for more reach,Nice work, waiting for more!!
Awesome!!! Congrats!!! Maybe one day Ill try it out on my channel!!!
Best Regards From Brazil!!!
You could potentially add a polycarbonate sneeze guard to protect the user's face.
And/or two vertical side shields that stick out to protect the hands/wrists.
I wish I had one of these. You did an amazing job engineering them. I hope to own one, one day! Keep the cool stuff coming! 😃👍
Thank you! You've got a neat channel! We do sell kits for this machine on our website. You should check it out: actionbox.ca/products/injekto-2
Nothing beats injection moulding, 3d printers are slow and not up to scratch for high amounts of detail.
Agreed
man i need one of these in my workshop
thats so good
the machine is great 😎
Actionbox WOW i buy your kit shure ! looking forward to receiving mine
Injekto sounds like tye name of a Spiderman's enemy.
Great video 👍
You are awesome. The fact I can plop down on my couch and search for “DIY injection mold” and find you spoon feeding the whole project to me and 437,000 other folk 😱🏴☠👾
We do it for the fans :) Glad you found it helpful!
This is a really cool project. Injection molding is just so far out of reach for the average person. I love this.
Thanks 😃. It’s been a really useful new tool around the shop.
I underestimated how much this would cost! Wow! It's super cool, just out of the budget at the moment. I will look forward to owning one someday though!
Awesome, Im glad to hear it. First 20 buyers get $200 off ~ use code 200OFF at checkout
Same here, patience is virtue 🥹
@@ActionBOX are we buying a machine that already built by you ? Or this is just a kid we have to build it ourselves?
@@kimbao164 it’s just the Kit. You need to build it yourself. check the website for more details.
I ok at making things, but I wish I could think like you guys, awe inspiring.
Thanks a lot I appreciate your compliment and support 😊 which part did you find most interesting?
Man injekto 1.0 would really come in handy for me
I forgot to ask when you guys were planning on drawing for the injekto 1?
Great content as always
Glad you enjoyed it!
I love resin printing but I need this! I have been looking for my solution for years now! I loved your 1st Machine. But I’m going to have to order one soon!
Thats awesome, Im glad to hear and thanks for your support. First 20 buyers get $200 off ~ use code 200OFF at checkout. Cheers, Dave
13:35 You should make an transparent acrylic door in the front for protection
Isn't is gonna melt?
yaa i would recommend the same (Safety first 🫡)
@@Hajdew A few centimeters apart is enough
That is a great idea. Thanks for sharing 😃
That would be a great tool to have at my local makerspace
really cool!
Thanks Gary 😊
Neat machine.
Nice project.
Thank you! 😀
awesome keep it up great achievement
Thanks for your support 😃
saw the shreddy first, injecto & shreddy are quite the pair, I like that you included the safety concerns (as a former bridge builder & FA-18 Mechanic I saw too many friends maimed just trying to do what I did because they didn't respect the safety concerns like I did. ... though I must admit when i was new i didn't either, and with experience & luck I was able to learn before hurting myself or anyone else.
Thanks 😊
this is incredible! you guys should make/sell a machine that turns scrap plastic into 3D filament again. That'd be awesome.
Thanks, we are actually working on it right now. Make sure to subscribe to be notified of when it happens.
The design is so different than others on the market, would love to see longevity over time test results
Would love to see some better bigger molds being filled.
perfect guys! shipping to Vancouver Island.
Hi, yes we do ship to Vancouver Island. First 20 buyers get $200 off ~ use code 200OFF at checkout. Cheers, Dave
I have giant box full of plastic I can't do anything with. A machine like this and a shredder need to come to the market at an affordable price so everyone can get these things.