Printing with Ninjaflex?

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makeal
Posts: 77
Joined: Sat Aug 25, 2018 2:13 pm

Re: Printing with Ninjaflex?

Post by makeal » Mon Oct 29, 2018 1:18 pm

Thank you

airscapes
Posts: 348
Joined: Wed Jan 31, 2018 11:36 pm

Re: Printing with Ninjaflex?

Post by airscapes » Sun Jun 09, 2019 8:01 pm

Had some good success with NF and then my tension adjuster got bumped.. According to the manufacture CSR I spoke with a while back, NF does not absorb moisture. NOT TRUE.. had missing spots in the strand and finally realized I could hear a pop every time a spot was missing.. Dried the filament in the dehydrator which corrected that problem.. Even once the tension was correct I was still was having issues even with the .5 nozzle and settings that had worked with other part.
After a lot of wasted time and material I figure it out. You can NOT alter speed or flow with this stuff. I am using S3D and set all of the under speeds to 100%, print speed to 6mms and No retraction and slightly over extruded. Starting height is also critical.. I am now getting much better prints without holes or under extrusion. If you go too slow the filament leaks out with gravity and then goes under extruded, if go too fast it under extrudes..
Hope this helps someone who is struggling.. BTW my parts are small rubber straps and bands, nothing big and fancy.. function mechanical parts that need to stretch and not break.

mkmachining
Posts: 10
Joined: Fri Mar 09, 2018 10:16 pm

Re: Printing with Ninjaflex?

Post by mkmachining » Mon Jun 10, 2019 9:51 pm

I do not have very good luck printing flexibles on the Makegear. The extruder setup lets the filament get away, and even with modified extruders I haven't had any sort of reliable luck.

As airscapes mentioned, minimal retraction, and minimal speed changes are necessary. Our Prusas do good with flexibles. I've printed TPU at 40mm/s and some 3dxtech flexibles at 60mm/s. They have a Bondtech setup on them, nice filament grip from the dual drive gears. We put one on a Makergear which really helped printing flexibles, but the modifications required weren't worth the effort.

airscapes
Posts: 348
Joined: Wed Jan 31, 2018 11:36 pm

Re: Printing with Ninjaflex?

Post by airscapes » Tue Jun 11, 2019 1:00 am

mkmachining wrote:
Mon Jun 10, 2019 9:51 pm
I do not have very good luck printing flexibles on the Makegear. The extruder setup lets the filament get away, and even with modified extruders I haven't had any sort of reliable luck.

As airscapes mentioned, minimal retraction, and minimal speed changes are necessary. Our Prusas do good with flexibles. I've printed TPU at 40mm/s and some 3dxtech flexibles at 60mm/s. They have a Bondtech setup on them, nice filament grip from the dual drive gears. We put one on a Makergear which really helped printing flexibles, but the modifications required weren't worth the effort.
What model Prusas is it, have not looked into them but was thinking it would be nice to have 2 machines as it is a pain to switch nozzles or hot ends all the time.

mkmachining
Posts: 10
Joined: Fri Mar 09, 2018 10:16 pm

Re: Printing with Ninjaflex?

Post by mkmachining » Tue Jun 11, 2019 10:33 pm

Mk3 and Mk3S both have the bondtech extruder and do well with flexibles. Like orders of magnitude faster than the Makergears with flexibles. And with all other materials they can print fast as well. I hesitantly bought one, now I have 5. They can print 100mm/s with great quality, really impressed with how they print for being chintzy little things.

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