A word on quality, as it's very much a myth that needed to be debunked and I'm glad you did: I'm frustrated with injection molded plastic parts. I have a Sterilite box for storing my filament, and two of the plastic handles have the pins sheared off. It's not even a cheap Chinese product (which are notorious for bad plastic choice), it's "Made in the USA." I found patterns online, chose Tough PLA for my material, and reprinted them. It was actually challenging installing them, as the plastic I had chosen was less soft and pliable than the original handles. Time will tell, but from my experience with the material I do expect the 3D printed parts to last a lot longer than the injection molded parts. . . . and this is one example. How many times have we had to deal with cheap, easily broken plastic? It's everywhere. I can *easily* print stronger parts. Even with consumer level 3D printing, I have full control over quality, especially part strength. I choose the material, I choose the number of perimeters, I choose the thickness of the layers, I choose the type and amount of infill, I choose the print orientation. When I draw up a design in CAD software, I even have control over the shape and number of parts. I have fantastic control over quality. One of the things I love about 3D printing is that it's actually really good quality and strength, if done right.
So much this. After having worked with printed parts this long, I've come to think of injection molding as a garbage process. So much stuff breaks easily because it's designed around avoiding thick regions that won't cool properly or avoiding geometries that can't be molded.
This is something I'm dealing with personally as I want to make really small 3d printed objects and copies of already existing injection molded products. But even at 0.12mm which is the best my printers can do there are still visible lines that if you sand quickly don't feel or look good. And if you use filler then sand now your back to more expensive than injection molding. I hate resin printing even though I know it would get me closer to the finish I want. What does one do? I really appreciate everything you guys are doing for the community and want to do so I'd really like to hear your thoughts
Filament came and the vacuum seal was bad. Both rolls looked like the seal was bad. One was seal 3 times. Look into making that more consistent. I live in a dry place so it's not a problem for me.
I’m very curious on your thoughts on using a hybrid 3d printing/injection molding manufacturing process. By that, I mean using high res sla printers to create durable molds for injection molding. Since you have created an in-house filament extruder, i’m certain that you can create your own injection molding machines. Then you can bring cost down, rapid prototype, super high output by using 3d printed molds. Does that manufacturing model make sense, in terms of all the factors involved? You can get pretty amazing parts by using high temp resin molds.
I'd be willing to bet that if we could go back to before injection molding began and if we already had 3D printing going that there'd be all sorts of myths about how injection molding is inferior to 3D printing.
Great video! This reminds me of the common software development processes, at least before I retired. Although not a perfect analogy, traditional software development used the waterfall model, in which all design requirements had to be known up front. Compare this to the RAD processes like Agile and Scrum, which are more focused on intermediate output and proof of concept. The 3D printing model of hardware output values fast turnaround and the ability to adapt (RAD), as opposed to the traditional methods of making molds etc. (Waterfall).
Hey man. You can ignore this if you like. I ask because I'm starting a silly channel (not with this dumbass name which is an eff up I own) and I have mental ilness. I'm not seeking the dream as posting myself on video is a goal wirh my psychologist. I really hate asking this. Do you have add or something as I see alot of myself in you when I'm put on the spot and my gesticulation is all over the place. Wondering where you find the courage if so. If I've ever trolled you I apologize as I troll people and forget about it alot. It's called disassociative amnesia. I have a high iq and being aware that this stuff happens kills me as I have a conscience.
A word on quality, as it's very much a myth that needed to be debunked and I'm glad you did: I'm frustrated with injection molded plastic parts. I have a Sterilite box for storing my filament, and two of the plastic handles have the pins sheared off. It's not even a cheap Chinese product (which are notorious for bad plastic choice), it's "Made in the USA." I found patterns online, chose Tough PLA for my material, and reprinted them. It was actually challenging installing them, as the plastic I had chosen was less soft and pliable than the original handles. Time will tell, but from my experience with the material I do expect the 3D printed parts to last a lot longer than the injection molded parts.
. . . and this is one example. How many times have we had to deal with cheap, easily broken plastic? It's everywhere. I can *easily* print stronger parts.
Even with consumer level 3D printing, I have full control over quality, especially part strength. I choose the material, I choose the number of perimeters, I choose the thickness of the layers, I choose the type and amount of infill, I choose the print orientation. When I draw up a design in CAD software, I even have control over the shape and number of parts. I have fantastic control over quality.
One of the things I love about 3D printing is that it's actually really good quality and strength, if done right.
So much this. After having worked with printed parts this long, I've come to think of injection molding as a garbage process. So much stuff breaks easily because it's designed around avoiding thick regions that won't cool properly or avoiding geometries that can't be molded.
Having around 50 % less strength in the Z axis *is* worse, not just “different”. We can work around it, but it is still a flaw.
What about finish ?
This is something I'm dealing with personally as I want to make really small 3d printed objects and copies of already existing injection molded products. But even at 0.12mm which is the best my printers can do there are still visible lines that if you sand quickly don't feel or look good. And if you use filler then sand now your back to more expensive than injection molding. I hate resin printing even though I know it would get me closer to the finish I want. What does one do? I really appreciate everything you guys are doing for the community and want to do so I'd really like to hear your thoughts
Whooo new video! Loving the content man! 👍
Thanks for watching. We are trying to get ramped to daily consistently
Filament came and the vacuum seal was bad. Both rolls looked like the seal was bad. One was seal 3 times. Look into making that more consistent. I live in a dry place so it's not a problem for me.
Thanks for letting us know. We have a new vacuum sealing machine coming in just to address this. It applies a thicker seal
Just wanted to mention that you can print impossible shapes you can't do with injection modeing
¯\_(ツ)_/¯
I’m very curious on your thoughts on using a hybrid 3d printing/injection molding manufacturing process. By that, I mean using high res sla printers to create durable molds for injection molding. Since you have created an in-house filament extruder, i’m certain that you can create your own injection molding machines. Then you can bring cost down, rapid prototype, super high output by using 3d printed molds. Does that manufacturing model make sense, in terms of all the factors involved? You can get pretty amazing parts by using high temp resin molds.
I'd be willing to bet that if we could go back to before injection molding began and if we already had 3D printing going that there'd be all sorts of myths about how injection molding is inferior to 3D printing.
🔥
Thanks
Great video! This reminds me of the common software development processes, at least before I retired. Although not a perfect analogy, traditional software development used the waterfall model, in which all design requirements had to be known up front. Compare this to the RAD processes like Agile and Scrum, which are more focused on intermediate output and proof of concept. The 3D printing model of hardware output values fast turnaround and the ability to adapt (RAD), as opposed to the traditional methods of making molds etc. (Waterfall).
FDM isnt isotropic.
Should watch the whole video
Hey man. You can ignore this if you like. I ask because I'm starting a silly channel (not with this dumbass name which is an eff up I own) and I have mental ilness. I'm not seeking the dream as posting myself on video is a goal wirh my psychologist. I really hate asking this. Do you have add or something as I see alot of myself in you when I'm put on the spot and my gesticulation is all over the place. Wondering where you find the courage if so. If I've ever trolled you I apologize as I troll people and forget about it alot. It's called disassociative amnesia. I have a high iq and being aware that this stuff happens kills me as I have a conscience.