A How to on printing TPU video tutorial

[brett_turnage]

I put together a How to Video on how to modify the K2 Plus to print TPU.

The video is a How to video on how to swap the original Creality K2 Plus’ exturder spring with a softer spring, and then install a 3D printed spring perch that will allow the Creality K2 Plus to print TPU filament.

This builds off of the spring perch made by Stranula over at Printables

and the work done by “Lost in Tech” on Youtube and his work with TPU where he showed that flexible filament requires lighter extruder tension versus harder materials. I designed my own spring perch that uses a square design so that it fits together more easily in the extruder body. With this design, I was able to print TPU up to 7mm3/s on the volumetric speed.

My spring perch that has a square design on the head for ease of installation:

Links to Thumbscrews

Link to Springs

https://a.co/d/5BKdhKS

Here is the How to Video

Links to Thumbscrews

https://a.co/d/dmcGKCe

Link to Springs

https://a.co/d/5BKdhKS

And this is a 51 hour print in TPU 95A Siraya Tech Filament

[Martin_Prent]

thanks wanted to spend this weekend trying to print tpu with the k2. already got the spring and also wanted to make a spring perch wil use yours. already tryed tpu but after the first layer the extruder jams now my ender 3 s1 pro is my tpu machine to go.