Based on the feedback from some of you regarding my previous design I made this one and I added the PTEF tube to make it better for cleaning and get rid of all the filament I tested this with many prints and so far, it's going really well. please print as profile using PETG it has to be PETG or ABS or ASA *I only tested this with PETG you might use a drop of glue to glue the the PTEF tube this tube should last for a very long time so no worries and then when it need to be replaced just print another one it's a few grams. 

* the PTFE tube is very secure however you can use one tiny drop of superglue to hold the PTFE tube in place if you prefer.

if you prefer the one without PETF tube version please check the link below

https://makerworld.com/en/models/899031#profileId-857636

** Please download the original and first profile as it's the only one I tested and working as intended. 

Thank you for the like and the boost

I published a new version for anyone who is interested in a different approach or who needs a stronger rod. I myself still use this version and I did not have any issues with the rod still holding good after many many prints. 

https://makerworld.com/en/models/956091#profileId-925048