CAn i Speed Up printing TPU ?
its so slowwwwwww
thanks
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Perhaps there is a reason it prints slow…
Try printing it faster and see what happens.
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most, as i have found, can use the tpu 95a hf profile might be a bit stringy but ii use it on my 85a
If you are still using a “normal” TPU, throw it away and buy some HF (High Flow) TPU. That’s about as fast as you can go without serious tuning. However, that speed increase is substantial. Normal TPU, will have maximum speeds around 35-50mm/sec. The new High Flow variants (Bambu and other brands) will print as fast as 150mm/sec. Truly, I’ve seen some heavily modified Vorons/Rat Rigs/VZ Bots print HF TPU close to 300mm/sec.
If you are using HF TPUs, not much more you can do to go significantly faster without hacking the printer (for additional mod’ing) and doing a ton of tuning.
BTW, I don’t suggest using the HF profile on non-HF TPUs. I’ve tried, and all the normal TPUs I used, clogged or severely under-extruded. You can use it on another brands HF TPU, that does work and I have tried it on Overture’s HF.
There is a real premium to the price.
Can I hope the difference in cost is worth it for the increased speed?
I’ll order a roll of this Overture TPU HS unless you tell me it isn’t worth it. It only says it will achieve 60 - 90mm though.
OVERTURE TPU High Speed Filament 1.75mm Flexible TPU Roll 3D Printer Consumables, 1kg Spool (2.2 lbs.), Dimensional Accuracy +/- 0.03mm (HS Translucent Red)
https://www.amazon.co.uk/dp/B0BND872W7
Or this one from Qidi that promises up to 120mm.
QIDI TECH TPU 95A High Flow Filament 1.75mm，TPU95A-HF Flexible 3D Printer Filament Fit Most FDM 3D Printers，High Resilience，Suitable for High Speed Printing, 1kg Spool，Black
I’m not seeing many alternatives available in the U.K. right now.
You won’t have any complaints with the Overture. Sure… its not as fast as a PLA/ASA/ABS, but its very fast for a TPU. I’m running a Max flow rate test now and started it at 12mm3/sec (where Bambu set the limit on their TPU HF). It didn’t show serious signs of problems until 18mm3. So I’ll set the limit about 25% lower and run with it (14mm3/sec).
Comparing the 14mm3/sec to Bambu’s 12ish, Overture might be a better filament, for 25% cheaper. At least for speed and quality of print. Mechanically, I can’t say.
I will order it and give it a try.
Done.
Let me know if there is anything you think I should test at my end when it comes tomorrow.
You can use the Bambu HF TPU profile out of the box and be pretty safe. Just set it and rename it to the Overture name just in case you want to modify it.
If you want to know what the limit is for your example, run the Orca Max Volumetric Flow test. I did it from 12-25mm3/sec and that will show you the limit of volumetric speed without wasting a ton of time. Volumetric speed is much more useful than actual print speed, because it takes layer height/width and nozzle width in to consideration and sets your print speeds accordingly. Otherwise you’d need to run a test for every line width, nozzle size, and layer height.
IMO, the Bambu HF profile has perfect temps for Overture. No stringing out of the bag, and wall quality and extrusion was great. I didn’t test overhangs but I don’t see a reason to doubt it will be good.
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I have received and tested the Overture TPU filament.
I thought the results would be valuable for others.
I printed one of my simple models (more complex ones will follow).
As I hooked it up to my A1 mini, I chose the 235mm keyring strap, it is the longest available on that printer.
With standard TPU (every other TPU I own), it takes 26m 30s to print from start to finish including all the setup stuff.
The high-flow TPU using the recommended Bambu TPU 95A HF, took just 14m 10s.
It took only 54% of the time, essentially half the time for the HF vs non-HF.
That is 87% faster using HF and that profile without making any other changes.
Not bad at all.
The quality is excellent.
Yeah, the latest crop of High Flow TPUs have completely changed printing TPUs for me. BBL’s HF TPU is very similar, just more expensive.
I still have one slow printing TPU (Innovatefil CF TPU Shore 58D), for AMS printing (yes, a slow printing AMS compatible TPU), but its specifically for things I want to blend with compatible filaments. But note, this one isn’t very soft. Its actually fairly stiff, but its completely flexible. I have about 6 prints through the AMS on it, loading and unloading and no issues, so I think its fine. Other than that, its all HF TPU for me from now on.
Same here. I will look for HF only now.
I don’t often use TPU, partly due to the time factor. I have a few rolls of existing
I will now start looking for projects that I can design with TPU.
Do you think it’s worth providing HF TPU and standard TPU profiles for those who use Bambu Handy?
Is the BH slicer smart enough not to make a user without HF run their TPU too fast?
I don’t think I will be doing that myself, but if you want to, you could. But note, that is possible to change on Handy (if that is one of you printer/AMS slots).
Unfortunately, I don’t think its smart enough to recognize that, but there are prompts that could remind people to make sure the color and material is right.
Did you achieve this with a 0.4mm nozzle? Or a 0.6mm? Thanks
I have only used 0.4mm nozzles with TPU so far and obtained excellent results with both traditional and now high-flow TPU.
If you remove the printer start-up process from the time calculation, high flow was easily twice as fast as traditional TPU during printing with perfect quality.
It was a Bambu 0.4 hardened nozzle.