Carbon Fiber Prusa Parts: Replace/reprint all the MK3s stock parts out of Carbon Fiber loaded filament?
Quick question for the forum here. I am going to do some major maintenance to my machine in the near future, replace the 2019 bearings all with Misumi bearings and hardened rods as well as likely upgrade to the Mk3s+ while I'm at it.
If I'm doing major surgery to my machine I figured I would like to replace all the printed components with a premium filament. My question is which one would be the best fit? The two candidates are Atomic Filament Carbon Fiber PETG and Prusament Carbon Fiber PC Blend.
Future use case I plan on putting my machine in an enclosure long term to print Nylons and ASA.
The CF-PETG is closest to the stock Mk3S being PETG and will have similar strain properties and not be too stiff while the CF loading will give it a bit higher temp tolerance in the enclosure. Will CF-PETG be ok long term in an enclosure?
The CF-PC will be much stiffer than the stock PETG and also have higher temp tolerance long term. Will it be too stiff and would I have to worry about parts cracking over long time?
Anyone have any thoughts on this or used either of these materials to replace their Prusa stock printed parts? I have the Atomic CF-PETG in hand already and next order with Prusa I am picking up the CF-PC just for some other projects.
Anyone care to talk me out of this idea or have any additional pros/cons?
RE: Carbon Fiber Prusa Parts: Replace/reprint all the MK3s stock parts out of Carbon Fiber loaded filament?
I recently printed most of my extruder parts out of Prusament Carbon Fiber PC Blend and so far I am happy with them. The original parts out of PETG (except fan-shroud) around the hotend were sagging a bit. So, I had printed them during upgrade to MK3S+ out of ASA and used them for a quite a long time. That worked out well but with PC-CF I wanted to increase the margin for higher temp filaments like ASA and PC-CF. Please note, that I do not yet have an enclosure.
When I find the time, next on my list are the z-axis-top parts which I have replaced by my own adjustible ones (in x, y and z). Since those parts determine the vertical adjustment of the x-axis rods, the higher stiffness of PC-CF may result in slightly more accurate and repeatable mesh-bed calibration. The latter already works like a charm with my spring-modded bed and gives me a consistent first-layer.
RE: Carbon Fiber Prusa Parts: Replace/reprint all the MK3s stock parts out of Carbon Fiber loaded filament?
I recently printed most of my extruder parts out of Prusament Carbon Fiber PC Blend and so far I am happy with them. ... Please note, that I do not yet have an enclosure.
Excellent, thank you for the information on using the PC CF blend successfully. I'm interested to hear your experiences printing that material with no enclosure. Any warping issues or bed temp issues? What nozzle and bed temps did you end up using?
RE: Carbon Fiber Prusa Parts: Replace/reprint all the MK3s stock parts out of Carbon Fiber loaded filament?
printed without warping on the satin sheet. I did not need a windshield. Please be aware that those are relatively small parts. When printing large parts without enclosure, the outcome may be different. I used the default profile, including temps, provided by Prusa. My hotend has as nozzle from Micro Swiss plated wear resistant 0.4, a copper heatblock and a titan heatbreak, both from E3D.