Are Your 3D Prints Ruined? The Hidden Problem with PET Bottle Filament Revealed!

Подписаться 16 тыс.

Просмотров 3,4 тыс.

50% 1

In this video, we delve into the problems caused by PET filament's hollowness when using a regular single gear extruder. Witness the printing issues that arise and the frustration they bring. But fear not! We have found the ultimate solution that will revolutionize your prints.
Be captivated as we showcase the power of the dual gear extruder. Witness its enhanced grip and control, ensuring reliable and consistent filament feeding. Say goodbye to under extrusion and hello to precise extrusion accuracy.
Best Buy Link - amzn.to/3LxQRLY
Subscribe to our channel and hit the notification bell icon to stay updated with future 3D printing videos. Don't forget to give this video a thumbs up to show your support. Together, let's conquer PET filament challenges and unlock the true potential of your 3D printer.
Thank you for watching, and happy printing!

Наука

Опубликовано:

3 май 2023

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 33

@KevinGroninga3D Год назад

Hmm, I don’t have those issues with my PET filament. I also use an Ender 3v2 with a Bowden tube setup, but I did replace the toothed gear with one that has fewer teeth and it seems to have a good bite on the filament. Also, my filament might not be as hollow as yours. When making my filament, I make sure the ribbon is the correct width so there are no gaps in the filament and very, very little hollow inside. Also, increasing the tension on the tooth against the filament will actually cause more problems because it tends to flatten out the filament making it harder to push down the Bowden tube. Less tension is better. Also helps if the filament is slightly less than 1.75mm. If it’s not perfectly round, it can also be difficult to push down the Bowden tube.

@Creative3DP Год назад

Thank you for sharing your experience! It's fascinating to hear that you have achieved success with PET filament on your Ender 3v2 using a Bowden tube setup. The absence of hollowness in your filament may be the reason for your successful extrusion. In my case, I attempted to print with PET filament, but I encountered frequent slipping issues, even when using the minimum tension settings. As a solution to avoid the frustration of failed prints, I concluded that upgrading to a dual gear extruder was the best option. Even if your PET filament has a slight diameter variation, the dual gear extruder provides a strong grip, ensuring reliable extrusion.

@KevinGroninga3D Год назад

@@Creative3DP yep, I could see where a dual gear would be better and provide a better grip on both sides of the filament. PET is rather hard and I could see where the gears would slip if they don’t get enough ‘bite’ and if there’s a lot of friction between the extruder and hot-end. I also have a CR10 with a direct drive extruder and has a all metal heat break. Since it can also do 260C, I think I’m going to try that machine next. Best part is that with the DD, I can lower the retraction a LOT, like between .2mm and .3mm. And the machine is dual Z, so more improved print quality.

@marianbuduroi6463 Год назад

I did this to my printer also and it works very well

@Creative3DP Год назад

That's awesome to hear!

@tomeq4993 8 месяцев назад

Good guide, I really like your final description. I have a Prusa clone printer. And there the filament presses the bare bearing, so I made a groove in this bearing like in a wire feeder for a welding machine. And only then did the printer start printing with filament from bottles. But I have a problem, maybe you can give me some advice, the print seems to be foamy, as if there were air bubbles in the filament. Greetings from Poland

@Creative3DP 8 месяцев назад

Thanks for sharing your experience. Foaminess depends on the moisture content in the filament. I would recommend that after washing your bottle and converting it into strips, run them through a cloth so all the water can be removed. Another reason could be the flow rate, as PET filament is somewhat hollow inside, and due to this, less filament is coming out than it should. So, try to increase the flow; I usually set my flow rate from 110 to 118 percent. Yours may vary, but tweak it and see.

@tomeq4993 8 месяцев назад

@@Creative3DP Thank you, I will try it and let you know how it turned out, best regards

@gj4769 Год назад

Also you need to change the throat of extruder to bimetallic heatbreak , as the PTFE tube can only withstand temperature below 240°c , above this temperature it starts degrading and starts releasing harmful gas .

@KevinGroninga3D Год назад

Agreed, all metal heat break is needed. I also had to decrease the retraction length because you don’t want to pull hot filament too far back up into the heat break, otherwise it gets stuck. Obviously it’s also better to print this PET with a direct drive, although a Bowden tube system does work, with the right settings.

@Creative3DP Год назад

I think fumes will not cause problem if you well ventilation in your room. and pulling back PTFE tube is not an option otherwise it will cause a clog.

@KevinGroninga3D Год назад

@@Creative3DP even good Capricorn tubing will degrade and burn after a while when it’s in direct contact with the nozzle at 258-260C for long periods. With an all metal break, the Bowden tube never gets warm enough to degrade. Downside of the all metal break is that if you retract too far, the hot plastic will stick to the cooler parts of the break. And that’s based on my experience with two diff machines that I converted. All I had to do to resolve that issue was just lower the retraction distance.

@gj4769 Год назад

@@KevinGroninga3D hey brother I have seen your video's , you are doing great work , how did you solve the layer adhesion issue , the prints from pet filament that I printed were not strong as compared to that of generic pla do you have any idea to solve this issue .

@Creative3DP Год назад

@@gj4769 will check them out and i bought extruder from amazon but yes i know novo3d, I purchased few items from there.

@vecblen Год назад

recently I started to produce filament of plastic strips with a higher temp approximately 240 C, and increase spool speed, the new pet filament is more flexible and no skips, try to change settings during process

@Creative3DP Год назад

will take your recommendation. but i think dual gear extruder takes away stress that your print might fail if there is minute problem in roundness/diameter of PET filament

@gj4769 Год назад

Brother you skipped the issue with the new creality machine , the extruder motor shaft is too short for the dual gear , also the motor has push fitted gear , the motor is also not of D shaft , thus if you need to add dual gear extruder you need to change the motor with the older D shaft one .

@Creative3DP Год назад

Thanks for mentioning this, I did change the Stepper motor with new one because of the short shaft and hard to remover the gear from stock motor

@daliasprints9798 Год назад

This is just another case of the stock Ender 3 extruder gear being garbage. IME it didn't work on commercial filament either unless you go *really* slow.

@Creative3DP Год назад

The stock plastic extruder of my ender 3 broke down in 1st week only so i used this spare extruder since then 😂