PCTG claims to have numerous advantages over PETG in terms of strength, as well as chemical and UV resistance. I've printed single wall test cubes, and even at the lowest recommended temperature (245C), I need to pull hard with two pairs of pliers to get the layers to separate. The downside is that it's a bit pricey, and it oozes and strings like mad. The test cubes come out looking great, but real models where retraction is required to get to separate features can be a mess.
I've managed to get a few successful prints out of it, but I'm still having a hard time producing prints as clean as I'm used to getting with PLA or PETG. I have a MakerGear M2E printer, which has a direct drive. I doubt anyone is working with PCTG that has the same printer, but I'm mostly interested which boxes should be checked in the Ooze Control section under the Advanced tab. For example, I unchecked "Only retract when crossing open spaces" today, and saw a HUGE improvement in stringing and defects.
Although I'm sure it's printer specific, I'd also be curious what values/settings you are using in the "Ooze Control" section under the Extruder tab. I'm getting the best results with a retraction of 2.6 mm, which is about 3 times what I use for PLA, and considerably more than the 2.0 mm I have used for PETG in the past. I'm currently using both coasting (0.3 mm) and wipe (2 mm), with everything unchecked under Ooze Control in the Advanced tab.
Thanks!
