Filament Extruder #4 - Finally Making Some Filament

Its really cool seeing these desktop extruders

Congratulations on making the filament. Once you have a water bath it will not be sticking anymore. When I worked in a plastic plant we went directly from the extruder to the water bath. Keep on keeping on.

The drill bit is scraping the pipe surface inside and thus you find the shiny metal pieces in the filament. Just requires an alignment effort and then it should be ok. Great work.

thank you for the video. can you explain how to make the heat generation ? and how to connect the pid contoller ?

Hey, whether it works or needs improvements is secondary to the fact you are trying to make something. I totally commend you for that. That is quite the undertaking and shows that by using your brain to try stuff out is a really great exercise at growing your knowledge base. Anyone here who criticizes is most likely doing so from their couch or puter chair. "I have not failed. I've just found 10,000 ways that won't work." -Thomas A. Edison

Great project! Some suggestions, you can ignore if you want to. :-) Put a cooling fan under the hot end, and it will cool of faster and not stick on everything. Also you might want to print a nozzle for the fan that can cool down to filament more efficient. You might want to put the drill bit in the lace and make a short tip on the drill bit and a hole into the inner part of hot end center, not going through. That way your drill bit will not go of center and scratch the tube. The output of the filament could go a bit off center from the center hole you made previous. I don't think it has to go out in the middle.

great vid, here is a good tip on drilling that brass plug. find a drill to same size as the inside, and drill a fraction out, just enough to see a bit of the brass come up the drill bit, this has 2 benefits. 1st it will smooth out the inside and secondly it creates a centre so you can then add the 1.8mm drill bit into the drill and then make your hole from inside the plug/bung as the drill bit will also find its center amd the drill hole will have a micro spiral the right way. hint if you make a few types with bigger and smaller size holes you then can swap/change to suite for the types of plastic, or if a good engineer/metal worker, one could make a nozzle governor

Hello, Thanks for this video series. As you very rightly chose the tapered copper bolt because it is tapered, instead of trying to hit the center from the external face with a lathe and drill at 5:30 , I would recommend doing the same but starting drilling from the inside. The tapered angle would guide your drill, also all copper burrs would end up on the outside and can easily be shaved. This serie to build an extruder as a DIY project was done 3 years ago from what I see, with some trials and errors. As much as the venture can be fun, would you consider making a new series going straight to how to build one right from first try, using your lessons learned? Also very interested in the schematics and code used for the controlling electronic for the stepper, heater, and so on.. Thanks!

Great video. Any idea about making one of these machines with a porthole die so that it can extract tubing?

This is an old video... and you are obviously a very knowledgeable man... with the capability to choose, design, and implement every mechanical and electrical aspect of anything you set your mind to.. .. I am inexperienced in this topic... very very much so... I'd like to ask you: why not gravity feed the filament and cool it on the drop as with continuous casting steel? thanks to anyone who'd like to share on the topic... and thanks for sharing your adventure with recycling plastic from the home shop.

A tip. If you use low expansion foam for windows and doors and place it inside of your fram tubes, you will eliminate the echo. Even loosely stuff the tubes with insulation. Rubber undercoating spray on the outside of the hopper will eliminate some decibels from your auger bit.. hope it helps. Cheers

Hi there, What nozzle hole size have you converged to to optimize speed? Would you recommend going bigger than 1.75mm and pull to the correct diameter or stick with the 1.75mm hole? I was thinking that maybe a bigger hole could increase the production of filament per second. What are your thoughts on this? Thanks

Sometimes it is interesting to put right after the nozzle a small water container to solidify the PET, as it has a fast cooling rate to do so. Then you just hook it up to your winding hardware. Nice project, congrats!

cool. The filistruder i put together did the same contaminating thing. They say to run a pound of plastic to clean it out and after that should be ok. The inside of the pipe is rough and does get drilled out from the spinning bit that's most likely where the metal shavings come from. Filistruder also sells a super fine stainless steel wire mesh screen that traps the metal but there kinda pricey.

Sir pls explain the heating take place and also where we use the heater

cool video but you probably want to use a larger diameter hole for your extruder nozzel as the plastic cools at a smaller diameter. Awesome work though, I cant wait to try to build one of these.

Beautiful work man. Can you list the electronic components you used and their serial numbers ?

i really want to make this , so did it work?

do you have a video explaining how to ser up the pid temp controller?

Hi, What exactly are the engine features you are using? If you share the speed of rotation and engine power you have set, and so on, I am very happy.