First print with Ninjaflex, cool stuff (Page 1 of 2)

How hard are you pressing in that last picture? Does it retain its original shape after being deformed like that?

I have thought about ordering some of this for some time but have not yet had an application in mind.

Do you think that same part would stick to the bed just fine without the brim?

What temps were you printing at?

Now we need a tutorial on how hard it is to switch filaments given the different temps and wot-not :-).

Printing the single wall and this tire from here http://www.thingiverse.com/thing:42828, all I changed from my regular 0.3mm settings was lowering the temp from 230 to 210, and lowering the speed from 50 to 10.  It seems a bit runny, and I think the width is a bit low.  Small adjustment in filament width, extrusion multiplier, and a tad lower on temp should put it in a butter zone.

The tops don't connect well, the strands are a bit too narrow.

I can fold it however, inside out even, still doesn't affect shape or anything.

Here I tried to cut it with my utility knife for knowack, the little scratch down the middle is all it did.  To cut it you have to lay pressure down on it against a hard surface.  Its pretty cut resistant.  I can't pull the brim off of it, the piece hanging off in the picture above is where I tried cutting it.

I pulled it with two fingers on each side as far as I could and it just stretched and went right back to the printed shape.  Dragging it across different surfaces, even though it feels slick, it has good grip on fabric, tile, and wood.  I really just want to make a mud bogging RC monster right now ha.

I brushed some acetone on the cube I printed but it didn't seem to have hardly any effect except for dulling the glossy finish.

Edit:
I dipped the single wall into a little cup of acetone, it doesn't get smoother, it just breaks all the bonds.  The cube surface actually got rougher, the other 3 sides are quite smooth in comparison now.

Quick conclusion from minimal experimentation, acetone is detrimental to the quality of Ninjaflex prints.

While printing the cube, I tested upping the speed a bit.  That didn't go well at all.  Between upping the extrusion multiplier and filament diameter a bit to regain proper width, that alone was enough to where I had to slow down my infills from my first two runs.  I tried running the perimeters at 20mm/s, and infills at 25mm/s but it would just bend in the extruder.  I dropped everything to 10mm/s and it ran fine.

I don't have anything securing the PTFE at the top, so it was getting pushed over against the gear.  That certainly wasn't making it easier for the filament to travel in the intended direction.  I believe a slight redesign would help tremendously in attaining better speeds restricted by filament binding.

Really, thanks for the info.  Do you have a link for a source?

You should post your ninja flex victories on the 3D printing reddit.

http://www.thingiverse.com/thing:151673
Try that mashup of Lawsy's replacement extruder. 

Do you have a fan on the extruder itself?  Reason I ask is because the heat creeps up bad in the stock hot end, which makes the filament swell against the walls higher up in the extrusion process.  Since this adds friction, the force required to push it through goes up.  Of course that means with the Ninjaflex, and like filaments, instead of being pushed down it finds the path of least resistance ha. 

In this picture I changed out the filament from my stock hot end and you can see just how high the heat creeps up on it especially compared to what the E3D below it looks like.  I never tried pushing filament through by hand on the old extruder, but its quite easy on the E3D.  Try putting a fan blowing on the "cold" end and that should help as well.

This filament would most likely benefit most from a larger nozzle diameter.  For those with larger nozzles, care to share your experience if there is a large difference in say a .4 nozzle and .7 nozzle?  I'll get different sizes later down the road, especially when I move towards multiple heads.

Please stop quoting massive blocks of pictures.

Hey guys,

I´m working with the ninjaflex too, this is my first printing.

Accusedmonk, Can you help me with parameters like speeds, temperature and other things?

I have tried other settings but I've had trouble with Extrusion material and I do not dispense evenly, any ideas?

Thanks !!

What settings are you finding good for ninjaflex? I don't know where to begin.

can you print 2 of these in ninja flex? my son needs them for his baby gate as originals made of silicone keep breaking apert