PCTG - A better PETG  

RE: PCTG - A better PETG

Have you tried their matte black PCTG? They say it has some CF in it, but it's more expensive and at that point, why not use the real PCTG-CF?

RE: PCTG - A better PETG

Posted by: @james-w7txt

Have you tried their matte black PCTG? They say it has some CF in it, but it's more expensive and at that point, why not use the real PCTG-CF?

 

Interesting story with that. It has 5% CF fill and is $55/kg. I bit too expensive for what it is. I bought a roll from them and they sent me Galaxy black by mistake. It was wound onto a matte black spool. They sent me the proper spool and it looks nice, prints very smooth but not really worth that inflated price. At $55/kg it's more expensive than some brands of PC-CF. 

The main difference between PCTG matte black and PCTG-CF is the percentage of carbon fiber. The later is going to be much stiffer and will lose the ductility of PCTG due to increased stiffness. For something like that I prefer to use PET-CF which unfortunately is not ideal to print on a Core One. 

RE: PCTG - A better PETG

 Maybe I'm digressing but what about PP-CF ?.  It has many advantages; almost insensitive to moisture; it endures well most chemical products, it's waterproof, reasonably strong and resists high temperatures better than PC. Bed adhesion is no problem with Magigoo PP or a dedicated PP plate.

It isn't cheap of course and only black color but still...

RE:

How about PETG-GF?

RE: PCTG - A better PETG

Not as great with moisture.  

Posted by: @3d0zer

How about PETG-GF?

RE: PCTG - A better PETG

True, but it takes a better printer and higher skill to print. 

Posted by: @artur5

 Maybe I'm digressing but what about PP-CF ?.  It has many advantages; almost insensitive to moisture; it endures well most chemical products, it's waterproof, reasonably strong and resists high temperatures better than PC. Bed adhesion is no problem with Magigoo PP or a dedicated PP plate.

It isn't cheap of course and only black color but still...

RE:

Posted by: @artur5

 Maybe I'm digressing but what about PP-CF ?.  It has many advantages; almost insensitive to moisture; it endures well most chemical products, it's waterproof, reasonably strong and resists high temperatures better than PC. Bed adhesion is no problem with Magigoo PP or a dedicated PP plate.

It isn't cheap of course and only black color but still...

I had a similar thought. At least on Amazon US, it's around $40/kg on average so not bad. PP-CF also prints cooler than PC-CF so it's a bit more approachable since you don't need a hot chamber. I bought a roll of Prusa PP-CF a while ago (expensive) and here are my notes on it:

• bed adhesion -  the PP plate works fine and Magigoo PP on G10 is good choice as well, packing tape works but is a PITA. 
• layer adhesion - Z-strength is pretty bad. Have to pay attention to this when orienting the parts on the plate. PC-CF, PET-CF and in particular PPA-CF are far superior. 
• stiffness - PP itself is almost in TPU territory (I think it's around 70D) and the CF makes it stiffer but not even close to the same level as (example) PET-CF
• PP-CF creeps more under load so not really good for brackets or fixtures. 
• PP and PP-CF is almost impossible to glue. There are various tricks to get it to bond but it's a PITA
• Not a lot of brands to choose from. (I think this has changed recently though). A lot more choices than even a year ago. 

I definitely see it for containers. I use neat PP a lot for printing funnels and containers for resin printing.