Priline Carbon Fiber Polycarbonate Not Good
I have been using Prusament CF PC for a while now and I love it. However, it is expensive (and out of stock), so I decided to try something else out for the hell of it. I ordered Priline CF PC filament and all I can say is, wow. This stuff is not very good. I don't know what blend % of CF (or any other additives for that matter) is in this filament, but it's not very high. It's not very rigid.
The stuff crackles and pops during extrusion (0.6mm nozzle) anywhere above 270c, but will NOT stick to the bed properly unless it's around that. Remaining layers must have to be astronomically lower in temp because this stuff is basically like printing rubber. It just warps and falls all over itself. Others have stated 235c nozzle temp works really well, but this temp will not stick to bed even with glue. Bed temps above 100c and your print will stay floppy rubbery and curl up. I don't have anything to compare this filament to, but it's definitely not a high quality PC CF blend. It's much softer than PC. I've heard quite a few people compare it to PETG. I've seen all kinds of settings recommended on Amazon reviews, but each persons settings vary quite a bit.
I'm trying one last thing. 275c nozzle, 100c bed on first layer, 235c nozzle, 90c bed all remaining layers. I'm trying my hardest to get the filament to harden up. It's NOTHING like Prusament's CF PC filament.
Has anyone had any real success with this filament? I'm about to box it up and ship it back to them.
SUCCESS! Read Below
So I had a successful print with no major first layer issues or distortion of outside perimeters as previously experienced. Basic settings are as follows:
Start with:
- 0.6mm Hardened Steel Nozzle
- Prusament PC Blend Carbon Fiber Presets @ 0.35mm resolution
Modify:
- First Layer Nozzle Temp: 270c (for best bed adhesion)
- First Layer Bed Temp: 100c (for best bed adhesion)
- First Layer Thickness: 0.2mm (for best bed adhesion on textured sheet, use glue stick)
- First Layer Speed: 15mm/sec (keeps sudden direction changes from peeling first layer up)
- Middle Layers Nozzle Temp: 235c (Prevents middle layers from distorting)
- Middle Layers Bed Temp: 90c
- Middle Layers Thickness: 0.36mm (I'll explain this below)
- Support Material Speed: 35mm (Normal 50mm/sec tends to rip first layer support material up and put it into your part print area)
Okay, so the 0.36mm thickness came from a CarbonX PC+CF recommendation via Vision Miner. While this is a different filament, they pointed something out that made sense:
"Ideal layer height is 60% of nozzle diameter. We do not recommend printing layers below 0.25mm with carbon fiber grades. Lower than 0.25mm may create too much back pressure in the hot end and result in poor feeding, jams, drive gear clicking, and eating a notch into the filament."
60% of a 0.6mm Nozzle is 0.36mm. While I thought I'd be sacrificing the overall appearance of the part by increasing the layer height by this much, but the part turned out awesome!
Let me know if you'd like some pictures and I'll post them up!
RE: Priline Carbon Fiber Polycarbonate Not Good
I'm so happy to see that you have shared this. I just removed a Priline PC prototype part from the print bed which is hard as a rock. (I had to seat it into the metal opening by hammer installation...see Pg 3 of the install instructions lol). There's some minor warping and a little sagging over a 2mm gap. Neither of these are acceptable for an automotive part that I plan on marketing to the Jeep community.
I'll try your settings and see how it comes out
RE: Priline Carbon Fiber Polycarbonate Not Good
Glad I could help. I would maybe recommend increasing the extruder temp to around 245degf min. No cooling. Print slow, around 40-50mm/s if you can afford it.
RE:
well maybe I missed something. I squeezed out my part this morning and it was a massive blob on the top.
I have an elevated cros
s where the sag is. I need this to be under constant stress so I increased the perimeters to make it solid. My original part was printed at .20mm and 255c which is on the right and modified on the left.
This is my enclosure still under construction. Dense foam and ceramic tile for sound absorption. Air scrubber, external mounted electronics, LED strips in 4 corners and top. A modified $21 cosori dehydrator that brought the humidity from 40 straight out of the package to 10%
RE: Priline Carbon Fiber Polycarbonate Not Good
I'm a little late the thread but could you post a picture of your results with the settings you mentioned above? Having external perimeter quality issues.
RE: Priline Carbon Fiber Polycarbonate Not Good
Middle Layers Thickness: 0.36mm (I'll explain this below)
Support Material Speed: 35mm (Normal 50mm/sec tends to rip first layer support material up and put it into your part print area)
I cannot find either of these settings. I have Expert view enable in the PRUSA Slicer app, but for the life of me, I cannot see either of these on any of the tabs (Layers, Infill, Advanced, etc)... pulling my hair out lol.
RE:
BTW - This is a Glock FMDA DD17.2 frame printed with the PRILINE Carbon Fiber Polycarbonate filament. Came out great except for something funky going on with the trigger guard. I used the above settings, except left the 0.4mm nozzle and didn't replace with 0.6mm.
RE: Priline Carbon Fiber Polycarbonate Not Good
I'll have to do some digging. I have since stopped printing with CF. It's rigidity was to its own demise. The parts made with CF are stiffer, but a lot more brittle and I had no use for it anymore.
RE: Priline Carbon Fiber Polycarbonate Not Good
Looks great. Try reprinting it with support in that area, looks like it's missing support material. I recommend downloading PrusaSlicer 2.6 and using organic supports. They work really great. Also, clogging is very common when using 0.4mm nozzles to print filled filaments and it can occur unexpectedly.
Side note: Not sure what your plans are with that lower, but I would not recommend this material for a live "firearm". I hear toughPLA is the way to go. Furthermore the print orientation can lead to dangerous layer separation from kickback. The barrel end and the grip need to be the only parts touching the bed so that the lower is at and angle.
RE: Priline Carbon Fiber Polycarbonate Not Good
Middle layers aka "Layer Height" located under Print Settings/Layers and Perimeters/Layer Height.
Support material speed is located under Print Settings/Speed/Speed for Print Moves/Support Material.
RE: Priline Carbon Fiber Polycarbonate Not Good
well maybe I missed something. I squeezed out my part this morning and it was a massive blob on the top.
I have an elevated cros
This is my enclosure still under construction. Dense foam and ceramic tile for sound absorption. Air scrubber, external mounted electronics, LED strips in 4 corners and top. A modified $21 cosori dehydrator that brought the humidity from 40 straight out of the package to 10%
It should be noted that I did all of my printing WITHOUT an enclosure, draft shield, etc. and any addition of these things will likely require change those settings i've listed.
RE:
I just did my first ever PC CF print (Priline, also my first print with Obsidian nozzle,) using the above settings. It's darn close to perfect. Thanks for posting!
MK4 Upgrdaed Y-Idler - The only thing I adjusted was the middle-layer height to 25mm to accomodate .4 nozzle and the 60% calculation described. I did use purple glue, and it was a bit hard to get off the plate, so buyer be ware.