This topic contains 3 replies, has 3 voices, and was last updated by 
Pete 1 year, 1 month ago.
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I ordered Ninjaflex together with my Robox as only non Robox filament. After some reading on this and other forums I found out that you can’t use flexible filaments on the Robox. 🙁
The problem is caused by the flexible nature of the filament. Feeding a soft filament through a tube is not easy.
So the question is if I put the filament in the freezer, it will become less flexible, would I be able to print a part with it.
Will it help if you lubricate the feeding tube.
Is trying out flexible filament a bad idea.
Will the dual head have support for flexible filament?
@microcan The Robox will support flexible filament in the future and you can print with NinjaFlex and other flexible filaments if you are willing to void your warranty and modify your extruder. I have posted a video on this forum of one of my Robox machines printing with Zen Toolworks flexible filament as a test of my design of the extruder mods. I may share that design once I am able to test it further and make sure it works well.
Placing the filament in the freezer won’t help as it will warm up by the time it gets to the extruder. In addition, you will probably wreck the filament due to the condensation on the filament as it warms. Most flexible filament I have seen is hygroscopic, meaning it will absorb water. When it does that, it swells and the water gets ejected as steam during printing, causing horrible surface finishes.
I operate two Betas and one Production Robox.
See my 3D Hub site at https://www.3dhubs.com/phoenix/hubs/benThanks for the reply. I was on holidays so I did not see your reply.
Wil the dual head support flexible material? Where can I (pre) order the dual head.
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