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11

I am curious, what is the purpose of printing a single-height outline around the objects to be printed? The (equidistant) lines at distance from the print object is called the "skirt", the skirt is an option found under the "Build Plate Adhesion" options in your slicer. The primary function of the skirt is to get the flow going, but there are more benefits ...


5

your print surface is destroyed So, you managed to rip off your print surface in the center. Happened to me too. the corners of my scraper were too sharp, cutting the surface. Another time I did pierce the surface with my nozzle. Damage happens. Replacement surfaces for the Ender3 start at about 5 bucks a piece. So get yourself some spares. Clean your bed ...


4

My understand is that's is basically a purging extrusion, so that you get flow through the extruder before you start printing the object, as filament that's been inside the hotend during warm-up might have been "overcooked" by spending too much time in the hotend at temperature. It also helps stabilise the PID loop controlling the extruder temperature by ...


3

The build surface on the Ender3 is a BuildTak clone. The picture is a bit unclear, but given my experience with BuildTak (clones) this certainly damage because of heat. You can, as suggested before, replace the bed surface, but I do not think it is necessary at this stage. Normally these surfaces do not get damaged that easily but to prolong the life try ...


3

Unfortunately, you may have to destroy this part, or the build surface, just to get it off the plate. It looks really on there, and if you can't get under it even with a razor that further supports my gut instinct. It's happened to me before, just part of learning how to print with a particular material on a particular printer and build surface. One thing ...


2

I've printed for several years direct onto the 3 mm heated bed of the Anet A8 I used; worked perfectly! I did use a specific 3D print spray for adhesion, see e.g. this answer on "Should you use hairspray on a metal bed 3D printer?".


2

I would try a single edge razor blade at a low angle used as a scraper. If you can't feel the blade catching in the residue, it probably isn't an issue. If you must get rid of it you don't have good choices of solvents. Maybe you can burn it off by placing the class in an oven through a clean cycle. With luck the hearing and cooling won't break the glass....


2

If the V roller wheels aren't tight on the Y axis beam, it means the eccentric nuts are not adjusted correctly. Two of the rollers are mounted centered on the holes in the carriage frame, but the other two are on eccentric nuts which displace them from center slightly depending on the orientation the nut is turned to, to allow tightening and loosening of the ...


2

Ethanol (Ethyl Alcohol) should work just fine as long as it's around 80% or more. It's very similar to isopropanol as a cleaning solvent. What you're basically doing is removing any stray grease from the bed with a solvent that evaporates quickly. Methanol would also probably work. It's very poisonous though, and shouldn't come into contact with your skin, ...


1

In CuraEngine's FffGcodeWriter::finalize method, G-code to zero the bed and enclosure temperature is only written if the machine profile defines a heated bed/enclosure, so you could in theory avoid the cooldown by telling Cura your machine doesn't and putting the heatup commands in your custom start gcode instead of letting Cura emit them itself. However it ...


1

Try to lift the nozzle more than you'd do even for PLA. PETG sticks really well to the heated bed. If your bed is already well leveled you can adjust the nozzle position in Z by using Z offsets directly in your slicing software (AFAIK, Cura needs an extra plugin for it, Prusa Slicer has it built-in). If you have done everything correctly, the PETG model ...


1

Playing around with the nozzle height will help: back it off until just before you have first layer adhesion issues. Don't jam the filament into the bed as you might for ABS. This helps with small prints. However, my experience has been that if you have a large enough continuous contact area (i.e. more than a few square inches) with the print bed, there ...


1

Correctly level your bed. Seriously, that's the answer. PETG does stick well, but it only gets difficult to remove if you're smashing the first layer against the bed with a nozzle that's way too close. With the bed leveled properly - using feeler gauges or test prints and a sub-0.1-mm-precision caliper - I have no trouble taking PETG prints off a buildtak-...


1

Following Nathan's answer, I've solved my problem with Nathan's suggestions and the method in this video. What I did? Flashed Creality's original BLTouch firmware to printer Heated up bed to 60 °C Leveled bed the old fashion way first, but with slight resistance (you don't have to level perfectly) Followed the youtube method to find proper Z offset Opened ...


1

I would suggest you read this, even tho it's a different mainboard it may help. Next to that you should level the bed the old fashion way first with a paper on the 4 outer corners, it is essential that you do this because ABL can only compensate so much when printing. After that set the Z-offset using a paper and run some bed adhesion test prints and use ...


1

Heat the bed to around 90 °C and then scrape everything off with a metallic scraper, like the ones used to fill gaps in walls. No need of a super sharp one, since the plastic will be very soft a that temperature. If you have a razor blade and a proper handle to avoid cutting yourself, you won't need to heat the bed to more than 40 °C, since you dont want the ...


1

Dish soap will remove grease very well. Once you rinse it with a moist sponge and dry with a clean cloth most residues will be gone.


1

The original Anet A8 has: // The size of the print bed #define X_BED_SIZE 220 #define Y_BED_SIZE 220 // Travel limits (mm) after homing, corresponding to endstop positions. #define X_MIN_POS -33 #define Y_MIN_POS -10 #define Z_MIN_POS 0 #define X_MAX_POS X_BED_SIZE #define Y_MAX_POS Y_BED_SIZE #define Z_MAX_POS 240 So in your case it would be: // The ...


1

The Ender 3 does not come with a lacquered surface at all.The bed should have a rough build surface that is a clone of the BuildTak build surface. It is intended to be rough and satin-gloss in its native state. I do not remember if there was a thin protective plastic foil on my Ender-3 bed on delivery, but if there was, it should have been removed during ...


1

The material used for the Build surface is not PEI but a BuildTak Clone that offers adhesion through a rough surface texture. I do not know what exactly is in the composition of the polymer, but I can say that my bed surface needed replacement about 9 months after purchase after I vigorously removed a piece I printed. As a matter of fact, most build surfaces ...


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