The title of this post more or less says it all.
I am having a heck of a time getting PMMA (polymethyl methacrylate) to print on my Lulzbot Mini 2 (which uses all of the standard/default attachments). Lulzbot offers a demo-STL file (called the "Rocktopus" - found here: https://www.lulzbot.com/content/meet-rocktopus) that is used to evaluate whether or not the printer+filament are behaving as intended. Thus far, I have had no luck with its print.
Layer separation consistently appears to occur at various levels:
sometimes at the interface between the first layer of deposited PMMA (i.e. the first layer of the raft)
sometimes at intermediate layers above the raft (i.e. mid-layers of the Rocktopus)
I have scoured the internet trying to find parameter recommendations (e.g. https://onlinelibrary.wiley.com/doi/full/10.1002/mame.201900263) in order to arrive at successful prints. I have tried several different combinations of bed temperature, extruder/nozzle temperature, layer height, travel speed, etc based on the few articles I have come across: no luck.
I have seen a few recommendations buried on forums to get a heat enclosure cage, but these were not specific to the lulzbot 3d printing line. The heat enclosures are a $200+, so I was hoping I could I find someone on here that could confirm the necessity of this accessory product before I shell out the moneys.
My mini is paired with the most up to date version of Cura Lulzbot (edition 3.6.23).
Any assistance is greatly appreciated! Cheers~