5

You could enable combing in the slicer. Combing not only prevents retracts, it also uses already laid down paths for movement from one to the other location and as such reduces the amount of stringing.


5

Print orientation is usually the key to print with a minimum of supports. If you print this part with the sharp point down, you will get some support structures on the outside for overhang support to prevent it from tipping over, but no support on the inside.


5

As a user of an UM3E, which uses Bowden tubes and has TPU as an available material, I can tell you that the kinking issues can be alleviated or downright avoided. I've printed quite a few things with the Ultimaker-brand TPU 95, and never had problems with kinking in the tube. Ultimaker uses 2.85 mm filament, with Bowden tubes adapted for those and a rear ...


5

As the rubber stamp needs to be soft in one axis for the whole area, you could use an infill that causes the same softness in all directions, but is sliced as such that the stamp experiences the same softness. Alternatively you can use the specific infill types for flexibility, but beware of the orientation: Concentric Cross Cross 3D First, to get the ...


4

OK, this turned out to be really idiotic. The main source of the problem was Cura's custom start gcode for my printer (Ender 3), maybe duplicated for other printers too: it crams a massive amount of filament through the extruder to prime it. With flexible filament, this doesn't actually extrude most of it; rather, it just builds up as pressure in the bowden, ...


3

Background SLA relies on the properties of UV-curing Resin. Most currently available UV Curing Resins harden to a solid, hard polymer, but that doesn't mean there are no other UV curing resins that are elastic. Most however will not be suitable for SLA or DLP systems! Polyurethanes, which can be flexible if cured in the right way, have not come onto the ...


3

To also validate the first answer, I have been printing with TPU95A for a number of years and it has been one of the most reliable materials to use. The strength of the product alongside the flex makes it a test and production based outcome with fewer issues. My printer for the most part of this experience was the Ultimaker 2+ that has a similar set up to ...


2

Hanging up the Bowden system won't fix the problems with printing flexible filament: the filament will still press into the bends of the tube and thus lead to under extrusion. Another issue is, that the flexible filament can compress - and the longer way it has to the melt-zone, the more filament it can "store" on the way to it. These bunched up zones will ...


1

Sharing fan percentages like in this answer is only helpful if you use the same printer model, cooling fan and cooling duct. As there are many 3D printers and many cooling fans, ducts and solutions, this cannot be readily adopted to every 3D printer. So, in such a case I would rely on the manufacturers of the filament e.g. the flexible filament I use has ...


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