Printing Polycarbonate CF / PC/PBT-CF : Important considerations !
My engines 3:57
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In this video I show important aspects to consider when printing Polycarbonate CF / PC/PBT-CF.
If you want to support me and become a channel member you get access to exclusive content in the members area:
https://www.youtube.com/channel/UCie-_1q_BTL_cpPN_6f0gHw/join
Thanks to Extrudr for sponsoring the PC/PBT-CF filament, have a look at their products:
https://www.extrudr.com
Thanks to Baptiste (alias OfficialyMax) we now have a Discord server:
https://discord.com/invite/TDABS5z2mT
It would be very nice if we could discuss there everything about Stirling engines, 3D printing and more, thank you very much Baptiste.
When printing fiber-reinforced engineering filaments, there are a few things to consider.
This is particularly important if you are using a basic printer like me, the Bambu Lab A1.
Some safety rules must be followed to protect your health.
Post-treatment is necessary or at least advisable for some high-tech filaments.
I need high-pressure resistant 3D printed parts for my Stirling engine.
After running intensive tests with conventional filaments, I now want to try out fiber-reinforced engineering materials.
Carbon fiber-reinforced filaments promise high-strength components with highest layer adhesion.
Since I have been using Extrudr filaments for a long time and have had good experiences with them, I asked for test samples for my experiments and was provided with three rolls of carbon fiber reinforced filament.
I am reporting my honest results here, I have no specifications from Extrudr and only received the filament free of charge for testing.PC/PBT is a filament that is not too difficult to print and has impressive properties, especially at high and low temperatures.The Durapro PC/PBT-CF tested here is even easier to print than conventional PC/PBT.
As with all filaments, it is important to print PC/PBT-CF only when it is absolutely dry.I store and print my filaments in self-made boxes containing desiccant to keep them dry and ready for use.
A closed housing produces better results and prevents excessive warping.
I made a housing out of wood and Perspex panels, but a simple cardboard box with a foil window would work just as well for preventing draughts and keeping the heat inside the printing space.
With a PEI printing plate and glue stick, the print bed adhesion is very good for me.I used the print values directly from the manufacturer, with only a little over-extrusion. This reduces the visual appearance, but increases the strength and tightness.
I am very happy with the results straight away, if a very good appearance is important you can get much more beautiful print results with fine tuning.
Vapours from melted PC/PBT are unhealthy.
I recommend an air filter in the installation space and ensuring good ventilation in any case.
I took a close look at the filament, the printed parts and crack edges under the microscope.No exposed fibers can be seen on the filament and parts; fibers only protrude at the crack edges.
When a leather strip is rubbed intensively over the filament and printed part, no fibers get stuck in it.But carbon fibers stick into the leather from the tear edge.Care should therefore be taken when machining PC/PBT-CF components, no grinding dust should be inhaled, gloves should be worn and attention should be paid to cleanliness.
Parts that are often touched should be sealed so that the fibers are encapsulated and can no longer cause damage.
I dip the parts in Dichtol because I need gas-tight components, and the internal areas are easily accessible.
With these steps I was able to achieve very good results straight away and also printed some test samples which I will now test for compression strength.PC/PBT is a crystalline polymer and annealing ensures the part reaches a high degree of crystallinity, providing better thermal and mechanical properties.
I will show in one of the next videos if they can withstand higher pressures than the usual filaments.
As always, I am very happy to get suggestions, criticism and comments here on Youtube or Discord.
Many thanks for watching!
Thanks for the background music:
Song: Jim Yosef - Eclipse [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream: http://ncs.io/eclispe
Watch: • Jim Yosef - Eclipse | House | NCS
If you want to support me and become a channel member you get access to exclusive content in the members area:
https://www.youtube.com/channel/UCie-_1q_BTL_cpPN_6f0gHw/join
Thanks to Extrudr for sponsoring the PC/PBT-CF filament, have a look at their products:
https://www.extrudr.com
Thanks to Baptiste (alias OfficialyMax) we now have a Discord server:
https://discord.com/invite/TDABS5z2mT
It would be very nice if we could discuss there everything about Stirling engines, 3D printing and more, thank you very much Baptiste.
When printing fiber-reinforced engineering filaments, there are a few things to consider.
This is particularly important if you are using a basic printer like me, the Bambu Lab A1.
Some safety rules must be followed to protect your health.
Post-treatment is necessary or at least advisable for some high-tech filaments.
I need high-pressure resistant 3D printed parts for my Stirling engine.
After running intensive tests with conventional filaments, I now want to try out fiber-reinforced engineering materials.
Carbon fiber-reinforced filaments promise high-strength components with highest layer adhesion.
Since I have been using Extrudr filaments for a long time and have had good experiences with them, I asked for test samples for my experiments and was provided with three rolls of carbon fiber reinforced filament.
I am reporting my honest results here, I have no specifications from Extrudr and only received the filament free of charge for testing.PC/PBT is a filament that is not too difficult to print and has impressive properties, especially at high and low temperatures.The Durapro PC/PBT-CF tested here is even easier to print than conventional PC/PBT.
As with all filaments, it is important to print PC/PBT-CF only when it is absolutely dry.I store and print my filaments in self-made boxes containing desiccant to keep them dry and ready for use.
A closed housing produces better results and prevents excessive warping.
I made a housing out of wood and Perspex panels, but a simple cardboard box with a foil window would work just as well for preventing draughts and keeping the heat inside the printing space.
With a PEI printing plate and glue stick, the print bed adhesion is very good for me.I used the print values directly from the manufacturer, with only a little over-extrusion. This reduces the visual appearance, but increases the strength and tightness.
I am very happy with the results straight away, if a very good appearance is important you can get much more beautiful print results with fine tuning.
Vapours from melted PC/PBT are unhealthy.
I recommend an air filter in the installation space and ensuring good ventilation in any case.
I took a close look at the filament, the printed parts and crack edges under the microscope.No exposed fibers can be seen on the filament and parts; fibers only protrude at the crack edges.
When a leather strip is rubbed intensively over the filament and printed part, no fibers get stuck in it.But carbon fibers stick into the leather from the tear edge.Care should therefore be taken when machining PC/PBT-CF components, no grinding dust should be inhaled, gloves should be worn and attention should be paid to cleanliness.
Parts that are often touched should be sealed so that the fibers are encapsulated and can no longer cause damage.
I dip the parts in Dichtol because I need gas-tight components, and the internal areas are easily accessible.
With these steps I was able to achieve very good results straight away and also printed some test samples which I will now test for compression strength.PC/PBT is a crystalline polymer and annealing ensures the part reaches a high degree of crystallinity, providing better thermal and mechanical properties.
I will show in one of the next videos if they can withstand higher pressures than the usual filaments.
As always, I am very happy to get suggestions, criticism and comments here on Youtube or Discord.
Many thanks for watching!
Thanks for the background music:
Song: Jim Yosef - Eclipse [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream: http://ncs.io/eclispe
Watch: • Jim Yosef - Eclipse | House | NCS
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