Les échantillons de #PLA Francofil sont imprimés. J’ai pu imprimer aussi des échantillons de filaments #PETG plus classiques, ça a l’air d’être de la bonne qualité.
Une fois que j’aurai réussi à trouver les bons réglages, je pourrais penser à m’approvisionner chez Francofil en priorité. La boîte a un dispositif de retour des chutes de plastique, elle t’envoie une étiquette colissimo et t’as juste à envoyer.
Wow. I was printing a batch of these wire shelf hooks using my current favorite (cheap!) #PETG-CF from #Eryone. I’d been going through the current spool faster than planned, and it ran out partway through.
Normally, I run all my new spools through the food dehydrator. This time I was in a hurry and just unwrapped the manufacturer’s packaging, dropped in the new spool, and walked away.
Dry your #3DPrinting#filament, folks. It can absolutely be this soggy even if it’s still factory-“fresh”
#TPU material is one of my favourite materials for #3Dprinting. During the last year I’ve printed some usable objects for home improvement.
Why?
it sticks to the plate really well
it is soft and flexible
it is weather and wear-resistant
it looks good
it doesn’t string (if there are not a lot of retractions or overhangs)
Material
I’m using Overture’s orange TPU.
Settings
I’m printing with the following settings:
printer: Sovol SV06 with Marlin
sliced with: Sovol Cura 1.7.2
material set in slicer: Generic TPU 95A
bed temp.: 60C
nozzle temp.: 220C
nozzle size: 0.4mm
layer height: from 0.15 to 0.3mm
speed: 40mm/s
infill: 10% except if stated otherwise
other settings: ‘arc welder’, ‘dynamic precision’ and ‘use adaptive layers’ turned on in Cura
hardware settings: I’ve loosened down the screw (spring) that pushes against the filament at the extruder entry. Otherwise, the filament will get stuck in the extruder gears.
Practical cases:
Gaskets
tpu gaskets on the print bedA rubber gasket for my garden hose connector broke. It took me several minutes (ok, a full hour and 3 unsuccessful attempts) to match the dimensions of the original gasket. TinkerCad has a strange idea for doughnut dimensions, so I had to do some trial-and-error.
I tried out the gasket, connected the garden hose and it doesn’t leak. I had to stretch it to fit it in the hose connector crack, but it acts as a rubber – it’s a tight fit.
The black gasket in the image right is the original one.
The original lawnmower (Worx Landroid M700) tyres wore out after a year so I had to replace them. New ones are around 60€. If I print them I use 400g of material, which is ~10€.
Nylon wheels were a bit better, but printing nylon is a PITA. It pops and cracks while printing (water) and I never managed to dry it. After it caught moisture (after a day of printing), it was impossible to dry it. It surprised me that nylon is somehow dimensionally unstable. When I printed the wheels, it was very difficult to slip them on the wheel. After few days, the tyres were too big and floppy and I had to use small screws to attach it to the wheels.
The original model of the wheels (by Oscar78) has cone spikes. The one you see on the left photo has wider spikes. I achieved this effect by turning on the setting ‘Make overhangs printable’ at 8 degrees before slicing in Cura. So no supports are needed and the spikes are not so pointy as in the original 3d model.
If they’re too pointy, they catch too many leaves.
Worx’s lawnmower with new slip-on TPU wheels.
It works much better now. It doesn’t slip on the hill and the turns are smoother.
This is the next attempt: I tried to print the same design with TPU, but it failed. If the object is tall, it starts skewing above ~5cm and the print fails.
I had to redesign the enclosure. I’ve split it in half.
brake handle bar caps printed with orange tpu, mountedBrake handles got the protectors too. TPU is so flexible I could design it with a bit smaller hole. I could slip it on without problems and it holds in place for more than a year.
Moreover, the orange colour makes me a bit more visible in the traffic.
Recently tried printing "glass" again. This is SBS transparent. I pushed the temperature from 220°C all the way to 250°C. The more milky one was at lower temps, tried the 250°C as @koz has suggested for TPU and SBS for flow previously, as well as multiple guides for "printing glass". It worked for flow as well as better bonding layers and allowed them to flow into each other. It almost results in a polarization effect.
The temperature difference has made a difference. But I also increased the EM from 0.96 to 1.025, 1.10 was too high, and created other problems, such as a rough texture. An interesting thing here is that look at the layer allignment. I used 0° for one and 90° for the other.
As with classic 3D printing, geometry and orientation make a difference.
The part is for a transparent drawer, of which the handle broke off. The drawer is transparent. Black, white, grey, etc, just didn't look attractive. So I tried printing "glass".
Nach fünf Temperaturtürmen und zig Änderungen bei Retraction, Z-Hop und Nozzle Temperatur, kann ich endlich das #PETG von eSun mir sehr geringem Stringing ausdrucken.
I really hate PETG, I can never get it to stick to my bed. Trying to print the Dummy13 model in PETG for the frame but even with runners it won't stick #petg#3dprinting#dummy13
PETG ist ja nicht in allen Fällen einwandfrei temperaturbeständig.
Viele Hersteller geben 70 °C. Besonders temperaturbeständig ist dann laut Datenblättern 70° bis 85 °C.
Es gibt ein paar HT100 Anbieter, womit man (was Spülmaschine) schon mal auf dem richtigen Weg ist, weil es noch Spülmaschinen gibt, die bis 75°C gehen. Industriespülmaschinen übrigens bis 95°.
Dann habe ich PETG FX120 gefunden, sehr teuer.
Dann das Extrudr BDP GreenTec Pro (bis 160° formbeständig), günstiger.
oh dang, filaments.ca just dropped a 100% recycled PETG black for can$20 us$15/kg introductory price.
the clever part is that they've found a way to source from used medical supply containers. that shit is gonna be extra stable/extra unmodified, right? Because medical supply. So very low to no contaminants.
Followerpower: At @preciousplasticmunich we have a bunch of old 3D prints we'd like to recycle. The only problem is: some of them are PLA, and others PETG. We'd like to separate them before recycling.
I was avoiding printing with #TPU for some months because of the ... stories. Especially #sovol community scared me it would not work.
Today I finally tried and ... it worked on the 1st try. Just used the settings written on the filament.
It's a simple break handle protector. It must be flexible to slip over the ball. #3dprinting
@OttersDangerDen It's really awesome. The outer layer is quite smooth, I like the finish better than than #nylon or #petg.
I'm also astonished at how flexible it is:
After 2 smaller fuckups, I'm starting a full day #3dprint for the first time with #nylon. Wish me luck. No enclosure ofcourse.
Damn that material is hard / sharp. I immediately cut myself when removing the brim.
End of the project. Now the mower doesn't slip even on the hilly part of the lawn.
Had some problems putting wheels on the rim because of the very tight fit. Had to put wheels into hot water (50C) to enlarge them a bit.
I hope #nylon will last longer than #petg.
My #DYI#raspberrypi based #birdwatching outdoor camera ... 3d printed #PLA frame after being exposed to direct sunlight ... looks like the rumors that PLA melts like chocolate on direct sun weren't exaggerated ... 😎 I guess the next step is #PETG ...
My son loves #printablok and keeps inventing new models, so I'm given a list of parts to print, sometimes with colour requests too.
Printablok has done a lot to make me a better 3d printer, namely it has small bottom surface, a ton of detail so takes a lot of time, and makes you want to print said detail. It's with printabloks I started routinely use wider than the nozzle line widths, started printing #PETG, using painter's tape and so on. This one is printed on #garolite though. #3dPrinting
Made plant markers for the garden. Printed them in #PETG. No idea how these are going to hold up…I’m not expecting much. I don’t have the setup or the materials for ABS but if I like these maybe that’s where I’ll go next.