HobbyKing 3D Printer Filament 1.75mm PETG 1.0KG Spool (Black)
HobbyKing have come out with a huge new range of 3D Printer Filaments at prices that will have you printing all day and all night.
The range covers PLA, ABS, Flexible, Color Changing, Luminous, Nylon, Polycarbonate, Acetal (POM), Metal Composite and even a water soluble filament for printing molds. So there is a filament for every project you have in mind. HobbyKing filaments have a stable melting point, good round shape and most importantly a 0.01mm uniform diameter tolerance for a consistent flow rate.
PETG has high tensile strength, impact resistance and is more durable than PLA. It also has no odour which allows easy printing indoors. It doesn’t warp and is recyclable making it better for the environment. A new light plastic.
3D printing is a fun and exciting hobby with a wide range of uses from prototyping parts to making toys for the kids. Picking the right filament for your application is very important.
• Stable melting point
• Good round shape
• Uniform diameter tolerance 0.01mm
• Consistent colors
Filament Material: PETG
Melting Point: 250°C
Print Temperature: 250-275°C
Filament Diameter: 1.75mm
With some more experience I'm still very happy with this filament. As someone already noted you have to watch out for moisture but you will see and hear the gas bubbles if that happens. Also the bubbly extrusion strings much more so that's another sign.
Storage in an air tight container with silicagel and an occasional 4-6 hour bake in 80C oven will make the printing so much easier and the quality better.
My settings have stabilized on 255C temp on a 90C glass bed with some ABS juice on it (E6D v6 hotend). Having a Delta/Bowden setup, I'm using a fair amount (2.5mm) of retraction and wipe before move and 0.25mm of Z-lift.I'm printing this black PETG at around 240C on my i3 clone. So far it prints pretty nice, it's deep black looks great. As always with PETG you need to get the settings right and have a perfectly calibrated extruder so your print doesn't turn into a stringy or blobby mess.
The only downside is that this PETG has a very strong, unpleasant smell. I'm really not used to this. I already printed a whole roll of white, generic PETG and it didn't smell at all. It's maybe the black pigment... Anyhow, because of the smell it gets one point less from me, but if you want nice PETG prints at an awesome price, get it!Prints best around 225C -- certainly not 250 plus,as the label and other here suggest! Not the roll I got anyway. (Same printer does ABS at 250C routinely. Sensor is calibrated.) Adhesion to straight glass kicks in around 88C. BUT it sticks too well, destroying the glass during natural cool down -- no external forces applied! Broke two beds, first print on each! Crazy strong. Won't adhere to blue painters tape at all (tried up to 120C).
In the end, I found that direct-to-aluminium bed at 120C first layer, 90C thereafter (otherwise it starts to melt from the inside out) works very well. There's no way it's coming off that bed until it's cooled below 60C. Of course, you have to make sure the bed is completely oil free, first. Back at room temperature, a chisel sharp metal spatula will slide under to release. VERY STRONG STUFF and having no odor is just the bee's knees.
Lay adhesion is excellent. But you can't print quite as fast as with PLA. I've found that 50mm/s is about the most it will handle reliably. After that, there's too much loose plastic build-up on the nozzle, making it generally messy and causing solid clumps that will jam the print head solid. It aint like PLA, where the hot nozzle often just ploughs through a lump and carries on.
Amazingly strong. Glassification temperature range is quite sharp compared to PLA, adding to the crazy bed adhesion characteristics -- like, at 80C you get nearly no stick. 90C it sticks like freakin super glue.
Oh and it sticks stupid strong to white and yellowish painter's tape. Good luck getting the tape off though. Nothing I have tried has worked, so far.
Overall, amazing stuff and far cheaper here than anywhere else I can find.
Moisture problems? Not sure what that reviewer had going on. PETG is supposed to be all but impervious to moisture. Another major plus and I've not had any trouble at all so far. Meanwhile, my older PLA stock is crumbling into millions of pieces right on the reel -- despite an air conditioned home and large amount of desiccant in a closed, cool cupboard. :-/Rather easy to print. Sticks to glass bed nicely. I often have some ABS juice on the glass and it works fine. Glue stick as well. Much easier than ABS to print larger objects as this does not warp nearly as much. I have the bed at 80-90C.
Odorless printing and stringing not a problem.
You have to be careful with the temperatures though.
At 240C I get a hard, but very brittle part. At 245 it is already usable but the parts get stronger (but a bit more flexible) as the print temperature is is raised. 255-260C is still fine.
The prints come out very shiny and the color is fairly deep and opaque.
This filament replaced my black ABS completely - it proved to be more durable and as easy to print with on my Easy Delta, with less warping and no smell of burnt plastic.
Sticks really good on hairspray on glass heatbed heated to 70degC, with nozzle heated to 250degC. When the heatbed cools down, the print is easy to detach.
The only problem I came across was stringing which occurs during rapid movements of the print head, but the debris is easy to clean up after printing.
For the price paid, I'm very satisfied.