Printing with Polymaker 95a HF
Hi, I'm printing this prostatices model from 2 Polymaker TPU materials using the recommended settings provided by the manufacturer.
1. Polymaker TPU 95a
2. Polymaker TPU 95a HF
I'm using a 0.8 nozzle 0.4 layer.
As shown in the movie, a great success with the regular 95 TPU but a complete disaster with the HF.
It looks like the extruder doesn't pool the material properly since I do not see the filament rolling.
Yes, it has been dried for 12 hours.
Any sugesttuoin? recommendation?
Thnks,
Benny
RE: Printing with Polymaker 95a HF
Hi,
The First layers Looks okay. Are there any Change in settings? Like Temperature or fan? These blobs on the surface Looks Like wet Filament but could also be through to high Temperature. Maybe a Temp Tower could Help to find the best settings. From Here it Looks Like 240°C, try 220°C, 80% Fan.
RE: Printing with Polymaker 95a HF
I have made progress with the temperatures. I'm using 215 °C it looks like the extruder can not pool the material correctly; it always stops after several layers. I have tried drying box outside of it, but nothing helps
RE: Printing with Polymaker 95a HF
Maybe you can try to Set the MVS lower?
https://help.prusa3d.com/article/max-volumetric-speed_127176
RE: Printing with Polymaker 95a HF
It is the default 0 
RE: Printing with Polymaker 95a HF
Ah, sorry you wanted to Print faster Not slower 0:)
From the polymaker HP:
Characteristics
Printing Temperature:
200˚C - 220˚C
Bed Temperature:
25˚C - 50˚C
Printing Speed:
40mm/s -100mm/s
Fan:
ON
Direct Drive Retraction Distance:
3mm
Direct Drive Retraction Speed:
40mm/s
Indirect Drive Retraction Distance:
6mm
Indirect Drive Retraction Speed:
60mm
Drying Settings:
70˚C for 8h
Dry Settings Notes:
(Only if the material has absorbed moisture)
Ok, so 8h with 70°C. Thats alot.
Speed 40 outer 100 inner Perimeter.
And in would try 180°C to 190°C. Because we talking about a XL and i have to reduce all Filament profiles about 10°C or more for fine surface.
If you dont mind a little bit of stringing i would deactivate retraction
Yes, it has been dried for 12 hours.
How are you drying it? It looks like it started dry but either layers inside the spool remained damp or the exposed filament absorbed moisture while printing.
Cheerio,
RE: Printing with Polymaker 95a HF
Maybe try geting a plastic box that is moustly air tite dril a 2mm hole put silica gel in it and put it next to the printer filament sensor and print like that? It helped for me i have high mouscure in the air and while printing it absorbed it.