Extruder slices through polyimide tape. (Picture included)

[Spencer]

Or rather, the plate hit the nozzel when I did a +/-10 Z movement. Okay thanks Jules

[whoduexpect]

...one needs to be careful with PETg and especially with high-temperature filaments like ePC...

I'm still a little new to 3D printing so feel free to jump in if I'm spouting heresy, but I've had great success with PLA, Hatchbox's Wood PLA, and eSun's PETg printing directly on the glass. The trick is to get the bed perfectly level. I had all kinds of issues with the tape initially and I read somewhere the best way to print PLA is directly on the glass with no tape or chemicals so I tried it out.

Another plus is it gives you a nice smooth surface where the part sat on the glass. The one exception to this success has been supports in PETg printed right on the glass. Since they start as a really fine line the first layer has a tendency to curl up away from the glass. I fix that by using a raft.

At any rate, try leveling your bed to the degree of someone with serious OCD and try some prints right on the glass. At least for me my prints come out better and it's one less consumable I'm burning through.

[Jules]

...one needs to be careful with PETg and especially with high-temperature filaments like ePC...

I'm still a little new to 3D printing so feel free to jump in if I'm spouting heresy, but I've had great success with PLA, Hatchbox's Wood PLA, and eSun's PETg printing directly on the glass. The trick is to get the bed perfectly level. I had all kinds of issues with the tape initially and I read somewhere the best way to print PLA is directly on the glass with no tape or chemicals so I tried it out.

Another plus is it gives you a nice smooth surface where the part sat on the glass. The one exception to this success has been supports in PETg printed right on the glass. Since they start as a really fine line the first layer has a tendency to curl up away from the glass. I fix that by using a raft.

At any rate, try leveling your bed to the degree of someone with serious OCD and try some prints right on the glass. At least for me my prints come out better and it's one less consumable I'm burning through.

Nope, not heresy - a lot of people print directly on the bare glass. The only thing to watch is that some folks have had little chunks of glass pull off with the prints, after they have printed on them for a while. (The tape prevents that.) It's just an optional layer of protection.