Ninjaflex review by Extreme 3D using a Flashforge Creator PRO Dual Extrusion 3D Printer

Great Flexible 3D Printing Material! (Flashforge Creator Pro)

This stuff is kinda cool if your 3D Printer can print with it, I am using a Flashforge Creator Pro and I have to tweak a lot of settings to get a successful print using NinjaFlex. Once you can get the right settings this material can be great to print with, especially if you’re the type who likes to build and prototype things. I have used NinjaFlex for spacers, washers, vibration dampening in many of my projects. Its quite flexible and fairly strong as far as 3D filaments are concerned.

Prints easy on my Printrbot
Prints easy on my Printrbot, needs cleanup but that’s to be expected with flexible filaments.
Prints like a charm (Prusa i3 Migbot)

Wow. Prints like a charm.
Prusa i3 Migbot.
225 and 50C hotbed.
Printed a large Lego tire. Indestructible.
Used 1.67mm for wire diameter. Not quite 1.75. But consistent.

I have been amazed how well the prints hold together (Wanhao)


Seriously, this stuff is ridiculously flexible.
Follow the directions VERY CLOSELY for printing, and you will have no issues. I have run maybe 1/3 the way through the spool on my Makerbot Clone (Wanhao), with upgraded extruder parts that I printed, and have had zero feed issues. I have seen a few strings on thin, flat portions of parts, where the shell would tend to peel off, but I suspect this is a setting problem (don’t think I’m getting enough material on my fill to tie it all together, plus no layers on top to weave it all in). Aside from this, I have been amazed how well the prints hold together, even under what strikes me as a ridiculous amount of strain. Have I mentioned how flexible it is?

and it is very difficult to make good prints that use support (Printrbot Metal Simple)

Using on a Printrbot Metal Simple. Required some testing to find the right print temp and speed. Stringing is still a problem, and it is very difficult to make good prints that use support, since the support has to be trimmed off with a clippers, so you have to have a part with tool access. Otherwise…WOW. I can print RUBBER. Used for some flexible prototypes for a client, for basically free compared to the $300 a printshop would charge.

Will clog makerbot mini extruder and extruder plus. Not compatible.
Perfect Quality, Great fit for my CoLiDo Machines to Print
I have a ROBO 3D R1 printer, this filament ...

I have a ROBO 3D R1 printer, this filament is finicky in it. The softer the material, the harder it is to get it to feed correctly. I fixed that by adding a tube as a guide, but the higher your print is, the tougher it is to print also. It just takes some consideration as to what you need printed. The filament is very elastic though.

WOW what a great product. (Makerbot Replicator 2)
I had purchased this to “play with”. I had not project in mind. I was just wanting to test it. out. It was a great find. I used this on my Makerbot Replicator 2 and it printed better that the PLA. I printed with the default standard setting with only changing the temp to 225. I used the plastic build platform that came with the maker bot with no tape.
Glow-in-the-dark NinjaFlex doesn't print nearly as nicely as my black NinjaFlex

I found that this glow-in-the-dark NinjaFlex doesn’t print nearly as nicely as my black NinjaFlex filament does. It feeds well through my extruder and hot-end, but it doesn’t give the same quality as the black. I have printed my black flexible at speeds around 2400mm/min with no problems, although the recommended speed is more in the 1200-1600 range. The glow-in-the-dark feature brings a lot of WOWs. I’ve also noticed that the flexible filaments seem to cause more stringing between hot-end travel movements. My printing software/slicer has setting so eliminate all or most of this, giving a reasonably good quality print. I recommend that users NOT use high infill rates. This will do quite nicely right around 15%-20%. I printed at considerably higher infill settings and it makes the final print fairly stiff and, sometimes, hard. It will take a bit of experimenting to see what it will make it print well on your printer. Probably the biggest thing is the print speed. Start around 600-900 mm/min and gradually climb to 1600 mm/min as it proves itself. The manufacturer recommends the first layer (or two) be at a much slower speed, like 300 mm/min. I’ve found that all I need on my glass print surface is nothing but “clean”. No glue, hair-spray, ABS mixture, etc. I printed something on glue-stick (Elmers X-treme) and it was difficult to remove the parts after printing.

Once dialed in it produces fantastic rubbery prints with good adhesion and decent detail
By mzdxjx
Lots of challenges with this. The filament diameter is consistently at 1.60mm so you’ll have to dial that in on your slicer. I also upped my extrusion multiplier to 1.05 and lowered my speed to 20mm/s. As far as temperatures go, I set the bed to 30c and the extruder to 225c. Once dialed in it produces fantastic rubbery prints with good adhesion and decent detail for such a soft material; that’s why I gave it 5 stars!