Hey everyone.
I was just wondering if it’s possible to use the vertex printer with a material which acts like Ninjaflex - if there was thet would be really cool and useful.
I’ve actually just this evening been experimenting with a flexible TPE filament printed on a more or less stock Vertex (Mk3 heatbed installed but no mods to the print head or extruder). To my surprise it actually fed at the first attempt through the stock feeder, and so far results are reasonable if you slow print speed right down and turn off retraction. I’m still trying to determine the best settings, and the surface finish is a little patchy at the moment, but it seems you can get decent results with a bit of patience.
I’m using this filament: 3dprima.com/en/filaments-for … white.html
Yes, of course it is. But if you’re trying to push a piece of rubbery “string” up a tube you must be prepared for a few failures. Basically, you can see my attempts with filaflex here:
I have succesfully printd Ninjaflex on the K8400.
I made a simple mod with tube for guiding the filament so it can’t curl out at the extruder motor.
I lowered the printing speed en set the infill to 100%
What did you with the tube?
How looks your modification?
I am going to test it in the next upcoming week.
I have modified my extruders (thingiverse.com/thing:967475).
At the moment I have no issues to print PVA.
That is pretty flexible as well, and it works after the modification.
Without modification, it was curling around the pulley.
So have to order Ninja Flex or FlexiSmart ([color=#FF0000]UPD: ordered yesterday[/color]) and see how it works.
Best
Frank
Have tested ninjaflex and harder flexible filaments works with the feeder upgrade and it works very good. You just need a good build platform to have it stick. Heatbed and Dimafix is a awesome combo for it 
// Marlark, Cinya
Hi all,
got the FlexiSmart and is going well… except it does not stick at the moment.
I used 30mm/sec and 200°C and it is coming out well.
So the only thing i have to investigate is, how to get it stick on the glass plate (read about temp of 40-50°C, 60°C did not work.)
Will report here
@Marlark: Can you post some parameters about heat bed and extrusion speed, retraction, etc
Best
Frank
Hi all,
after the printer melted one connector for HEATER2 (bad connection, so the connector burnt out) and some repair,
I managed to print FlexiSmart Black 1.75
The very first tries, just 10x20x1mm cube, went well and I started a “bigger” one.
20x20x20 with the same settings.
The filament curled around the extruder and did not print.
I increased the temperature to 215°C and reduce the speed to 720mm/min.
The filament sticks on cleaned glass and on PVA stick (PRITT, UHU).
Actually, a clean glass ist the best option so far.
Heat bed had 35°C
The surface is nice, printed with 0,315mm,
the layers are great as far as I can judge it.
For the first try, I am happy.
Will proceed with some testing, like FlexiSmart base layers, and the rest with PLA etc…
More to come
Bye
Frank