Ninjaflex

Dale · Post by **Dale** » Sat Sep 13, 2014 2:44 am

Has anyone tried to use Ninjaflex filament with a Bowden setup? Is it too soft to work well?

Post by **Eaglezsoar** » Sat Sep 13, 2014 3:11 am

When I type "site:forum.seemecnc.com ninjaflex" on my firefox search bar it searches for all instances of ninjaflex on the seemecnc forum.
The quotes are not needed.
These are some of the links that I found that look good at answering your question:

http://forum.seemecnc.com/viewtopic.php?t=4162&p=28083
http://forum.seemecnc.com/viewtopic.php?t=4532&p=32603
http://forum.seemecnc.com/viewtopic.php?f=35&t=5298

Flateric · Post by **Flateric** » Sat Sep 13, 2014 4:24 am

I print with ninja flex successfully in a bowden setup.

However....

I use a bulldog extruder.

I have found the most success when using a genuine JHead from hotends.com.

I try to avoid any retraction if possible.

If I am having any slight feed issues I will take a cloth with a little veg. oil (sunflower oil works good) soaked in and rub a coat of oil over the first 1/2 meter of filament that will be printed with and the print will be fine for its duration no matter the length. The oil causes no print issues of any kind but seems to lubricate the nozzle and barrel and tube just enough to ease feeding.

Increase the feed rate of the filament 20% over normal feed rates.

Pre-feed a good 200mm just moments before starting your print to keep it fresh and smoothly flowing.

There will be ooze, temperature will greatly help this by finding the temp best suited to your setup and room conditions.

Dale · Post by **Dale** » Sun Sep 14, 2014 2:54 am

Thank you for the responses guys, I bought a couple of reels to try out.

Post by **Eaglezsoar** » Sun Sep 14, 2014 10:15 am

Dale wrote:Thank you for the responses guys, I bought a couple of reels to try out.

Where did you find the best source to buy from Dale?

Dale · Post by **Dale** » Wed Sep 17, 2014 7:39 pm

Eaglezsoar wrote:
Dale wrote:Thank you for the responses guys, I bought a couple of reels to try out.
Where did you find the best source to buy from Dale?

I was tempted to buy the no name brand from eBay it is cheap http://www.ebay.com/itm/Flexible-3d-pri ... 2c8c0f7136 one reel of 2.2lb for $49 with free shipping but I didn't want to risk getting bad filament so I bought the name brand from Amazon their reels are only 1.1lb for $44 sounds like a bad deal now that I wrote it down.
Next time I'll give a try to the cheap one.

Flateric · Post by **Flateric** » Thu Sep 18, 2014 6:06 am

Not a bad deal if it prints and the cheap doesn't.

Who knows for sure?

Double the filament at the same price is a bad deal if it doesn't print.

Tinyhead · Post by **Tinyhead** » Thu Sep 18, 2014 10:52 am

Flateric,

Was it you that modified the extruder so that the bowden tube would go up right to the hobbed gear? I had read before that there were feed issues if that wasn't completed.

Flateric · Post by **Flateric** » Thu Sep 18, 2014 2:35 pm

yes, that was me and it is an improvement in every way.

I doubt you'll be able to print flexible filaments without the mod.

Dale · Post by **Dale** » Mon Sep 22, 2014 2:41 am

Flateric, can you please post a link to your work? Thank you.

Flateric · Post by **Flateric** » Mon Sep 22, 2014 4:27 am

http://flat3r1c.imgur.com/all/

artexmg · Post by **artexmg** » Mon Sep 22, 2014 4:10 pm

Dale wrote:Flateric, can you please post a link to your work? Thank you.

I knew it cannot be my original Idea (Rule 555: if you think about a mod, for sure it has already been done for somebody in the forum)

Here is my mod, in case it helps: http://forum.seemecnc.com/viewtopic.php ... 4&start=50

CHeers!

artexmg · Post by **artexmg** » Mon Sep 22, 2014 4:11 pm

Flateric wrote:http://flat3r1c.imgur.com/all/

Wow, there are some impressive projects running down there!!!!

artexmg · Post by **artexmg** » Tue Sep 23, 2014 3:24 pm

artexmg wrote:
Dale wrote:Flateric, can you please post a link to your work? Thank you.
I knew it cannot be my original Idea (Rule 555: if you think about a mod, for sure it has already been done for somebody in the forum)

Here is my mod, in case it helps: http://forum.seemecnc.com/viewtopic.php ... 4&start=50

CHeers!

And, of course, mhackney has an older post on how to do it right, machined. I cannot thing anything not already thought before!

here is his post: http://forum.seemecnc.com/viewtopic.php ... ment#p5975

enggmaug · Post by **enggmaug** » Mon Mar 23, 2015 5:18 pm

I am having issues printing NinjaFlex.

I have a very good first layer, and everytime I see the print starting, I think to myself I got the right settings.

But I don't, and frome the second layer, it looks like the extrusion is not wide enough. Later on, it gets even worse, and it looks like the begining of filament starving.
I use a flying extrudder, on a small Nema 14. The filament seems to be feeding just fine when I stare at the cold end.

I tried both Slic3r and Cura, which usually slice just fine. Filament diameter is set to 1.6mm, and I tried to play with extrusion flow up to 120%, without success.
I print real slow, 10mm/sec with even speed cursor slided down to 25%.

I tried different temps, but I don't think temp is the issue. I finally extrude at 200°C.

I would like to try with a gcode file someone sliced, and actually uses on his machine to extrude NinjaFlex with success. Would it be possible ?

enggmaug · Post by **enggmaug** » Mon Mar 23, 2015 5:21 pm

oh, and I forgot, I also tried nozzles of .25, .4 and .6. They work almost equally.

I tried to keep layer height at .2mm.

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