This question is not specific to the LR, but I figured I’d make a post here and say hello anyway. First experience with a cnc router, though I’m comfortable with 3d printing and laser engraving. This will get used primarily for props in an escape room, but I’ll also be using it for some personal projects as well.
I ordered a 2.5 kg spool of Siraya Tech pet-cf. I’ve never used a spool larger than 1kg before, and it didn’t even occur to me to check whether it would fit in my Sunlu filament dehydrator (spoilers: it does not).
I’d rather not invest in another dehydrator since I have the one already, so I’m wondering if I might be able to work out some hacky solution with my existing dehydrator. It seems like I need to be printing directly from the dehydrator with this particular filament. Worse case scenario, I just have to return the one massive spool and get a few 1kg spools. Suggestions?
I print a LOT of PET-CF… I don’t print directly from a dryer but I do print from a dry box. I just picked up a 2.5kg spool to try it out but have not messed with it yet. My suggestion to you is to return it and pick up a few of their 1kg spools. For something you will print one time its not worth the few dollars saved in filament to be able to use it in my opinion.
Also I wouldn’t waste the filament printing EVERY part of the LR4 with the PET-CF either. I only print the YZ plates, Core, 1 min and 1 max brace and the tool mount. Everything else I print from standard PLA and its been working really good now. Just finished LR4 #19 and zero complaints yet.
According to the slicer its right at 1650g using Ryan’s settings and a .6mm nozzle.
Oh wow. Just last week I ordered 2 - 1kg spools for $31.49 a piece. That’s crazy the price jumped that much in a week. The price on that seems to fluctuate quite a bit sometimes.
If you do, I would for sure do that from the dryer if you can. That stuff is super brittle and TOUGH at room temp. Its a job just getting it loaded in the extruder. I have considered getting one of those sunlu single dryers just to help soften it a little while printing.
Personally I think its just a little bit better than the SirayaTech. But sometimes it goes out of stock so I go back to amazon lol. I just ordered 10 spools while they have some.
I believe Ryan has the recommended settings on the docs. 3 walls/top/bottom layers. 30% cubic infill. That is what I print all my parts at and it works extremely well
For a bambu printer if you are using bambu filament just use the presets for it and make sure you are using PLA Basic. For other brands it will depend on the brand, but usually around 220° has been what I usually end up at and just use a default .3mm layer height profile but change the walls/top/bottom layers and infill. Some of the parts you can use 20% and the 2 end braces 60%. Just follow the print settings guide for each part from the docs.