We wanted a gravity assisted heating chamber for insertion of the plastic beads to be melted. We did not have the budget to incorporate an auger to feed the beads horizontally from the feeding funnel into the heating chamber, like that in traditional polymer injection molding machines. With the heating chamber being vertical, the plastic beads can fall straight from the feeding funnel into the heating chamber
Nice work! Next steps are to incorporate pneumatic ejector pins with an aluminum mold. ;) So I'm assuming that it was a chamber based design to house your heated plastic until it was ready to be injected? How well did that work out?
Thanks! We definitely thought of a metal mold with ejector pins, but under the limited time we had and the $450 budget, it just did not seem possible. The vertical chamber was used to house and melt the plastic before being plunged into the mold. The vertical heating chamber worked pretty well, but the tolerance between the plunger and heating chamber needs to be very minimal to prevent melted plastic leakage around the plunger. Overall this design worked really well with minimal plastic residue in the chamber after being plunged
Benchtop injection molding machines are going to rival consumer 3D printers soon. Everyone and his brother is making these injection molders these days and as more people start to realize that FDM 3D printing isn't that great for most small-run manufacturing, they will start buying these.
Yup. But dont get me wrong fdm is still great for making larger objects, like lets say a game controller case. Atleast for prototyping.. My dlp printer comes in a day or 2, and then im gunna buy a cnc, dont know if i should save up for a 5 axis or just get a 3. Im going to make an injection molding machine, but wanted to go the threaded route, where plastic is fed, pressurized with the threads, and the heater remains inside. And to make that part i would need the 5 axis. Although it may be overkill for a desktop machine.
hello OP! can I use this video to discuss about Polymer Injection Molding? It is for my project in class and you explained it here so well I just want to borrow it :) I will tell my professor it is your video and I will not upload it anywhere else, just for my class only.
If you read the show notes, it says they were limited to a $450 budget. This is probably why. The mold isn't as important as the machine itself considering it was a project for school. Everyone already knows you don't want to use wood in the real world.
plastic injection technology means series production. wooden molds and amount of hand operations don't make this device useful in real production. A good idea, however its poor implementation make it expensive even for 450USD even for university. Go ahead and make really working machine, guys. Meanwhile "thumb down" just for poor implementation, hope to give you many thumbs up in future.
This project was completed under a short time, with very little prior knowledge of the Polymer Injection Molding process, and purchasing/modifying of the entire machine components under the tight budget made for a very basic and nonprofessional build. Future improvements outside those constraints would include a larger metal mold with ejector pins, a larger heating chamber, and a more streamlined autonomous process. This project was not meant for use in real serious production, but rather as a learning tool for Engineering students to really understand the Polymer Injection Molding Process. With this knowledge though, I am sure I can make a much more professional Molding Machine build
1. No one said this was supposed to be used in large-scale production. 2. If you read the show notes, you will see that this was a school project and they were limited to a $450 budget. Therefore, no use in spending money on proper molds since that is unimportant for the purposes of machine usability and seeing how this is not being sold (though there are many benchtop injection molding machines being sold today as as people start realizing that FDM 3D printing sucks for small run production of most things).
@@SeriousMan21 Pay no attention to criticism...I sense a cultural shock here: he says "make really working machine" in broken English? obviously the purpose of a SCHOOL work is NOT to make something intended to make money but to SHOW principles, concepts and ways things work. Maybe would be better for that rusky to mind his own business and design, build and finance a prototype for a milking machine, to provide butter, cream and milk for the children of a school in his hometown instead. So criticizers keep your mouth shut and go to F urselves.
push off screw hole would had help with the molds separation,I'm jealous of your Machine Epoxy for the mold never thought of that !! nice
That's a very interesting explanation, and remarkably low cost.
Very nice, what air ram did you use? I am looking at building a small machine and wanted to use air and not a manual operate ram.
A great project!
For a high school sophomore...
I need a molding machine to mold 3 pin plug top 13 & 5amp for small industries
Great job. May I ask why did you guys decided to go with a vertical design injection vs horizontal?
We wanted a gravity assisted heating chamber for insertion of the plastic beads to be melted. We did not have the budget to incorporate an auger to feed the beads horizontally from the feeding funnel into the heating chamber, like that in traditional polymer injection molding machines. With the heating chamber being vertical, the plastic beads can fall straight from the feeding funnel into the heating chamber
after all that work you forgot to show the part off!
Nice work! Next steps are to incorporate pneumatic ejector pins with an aluminum mold. ;) So I'm assuming that it was a chamber based design to house your heated plastic until it was ready to be injected? How well did that work out?
Thanks! We definitely thought of a metal mold with ejector pins, but under the limited time we had and the $450 budget, it just did not seem possible. The vertical chamber was used to house and melt the plastic before being plunged into the mold. The vertical heating chamber worked pretty well, but the tolerance between the plunger and heating chamber needs to be very minimal to prevent melted plastic leakage around the plunger. Overall this design worked really well with minimal plastic residue in the chamber after being plunged
wie kann ich sie erreichen. haben sie ein bauplan???
nicholas leo i wnat to know more about polymer moulding would u please teell me the whole procedure and the polymers used in it ??
Do some research then you lazy shit
Benchtop injection molding machines are going to rival consumer 3D printers soon. Everyone and his brother is making these injection molders these days and as more people start to realize that FDM 3D printing isn't that great for most small-run manufacturing, they will start buying these.
Yup. But dont get me wrong fdm is still great for making larger objects, like lets say a game controller case.
Atleast for prototyping..
My dlp printer comes in a day or 2, and then im gunna buy a cnc, dont know if i should save up for a 5 axis or just get a 3.
Im going to make an injection molding machine, but wanted to go the threaded route, where plastic is fed, pressurized with the threads, and the heater remains inside. And to make that part i would need the 5 axis. Although it may be overkill for a desktop machine.
Sir need help
Hello! how much does this device cost? can buy?
hello OP! can I use this video to discuss about Polymer Injection Molding? It is for my project in class and you explained it here so well I just want to borrow it :) I will tell my professor it is your video and I will not upload it anywhere else, just for my class only.
why use wood, and not aluminium?
If you read the show notes, it says they were limited to a $450 budget. This is probably why. The mold isn't as important as the machine itself considering it was a project for school. Everyone already knows you don't want to use wood in the real world.
Hi
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Ca c est un projet amateur
Ебать как сложно...
plastic injection technology means series production. wooden molds and amount of hand operations don't make this device useful in real production. A good idea, however its poor implementation make it expensive even for 450USD even for university. Go ahead and make really working machine, guys. Meanwhile "thumb down" just for poor implementation, hope to give you many thumbs up in future.
This project was completed under a short time, with very little prior knowledge of the Polymer Injection Molding process, and purchasing/modifying of the entire machine components under the tight budget made for a very basic and nonprofessional build. Future improvements outside those constraints would include a larger metal mold with ejector pins, a larger heating chamber, and a more streamlined autonomous process. This project was not meant for use in real serious production, but rather as a learning tool for Engineering students to really understand the Polymer Injection Molding Process. With this knowledge though, I am sure I can make a much more professional Molding Machine build
1. No one said this was supposed to be used in large-scale production.
2. If you read the show notes, you will see that this was a school project and they were limited to a $450 budget. Therefore, no use in spending money on proper molds since that is unimportant for the purposes of machine usability and seeing how this is not being sold (though there are many benchtop injection molding machines being sold today as as people start realizing that FDM 3D printing sucks for small run production of most things).
@@SeriousMan21 Pay no attention to criticism...I sense a cultural shock here: he says "make really working machine" in broken English? obviously the purpose of a SCHOOL work is NOT to make something intended to make money but to SHOW principles, concepts and ways things work. Maybe would be better for that rusky to mind his own business and design, build and finance a prototype for a milking machine, to provide butter, cream and milk for the children of a school in his hometown instead.
So criticizers keep your mouth shut and go to F urselves.
Не теряйте время смотреть херню