UniTak3D Ender 3 X-axis Linear Rail Conversion fix for Creality Sprite Pro extruder

@jublin Interesting. A cnc'd metal belt clip extension would definitely be far superior to any plastic. If you get one made I'd love to see a picture of it before you install it.

In the interest of improving this model, could I ask you a couple of questions? How long did it last before it started deforming? Did you print a lot with it? Do you print mostly with low temp or high temp materials?

I've had mine fitted since May 2023, (printed at 20% infill) and haven't seen any deformation yet....maybe my tension is too low. I print almost entirely with PETG so would expect to see some bending if heat was to blame. Maybe there is a way to reinforce the corners...or close the slot and create a perpendicular opening to insert the belt at one end. Just thinking out loud.

Thanks for the feedback. If I figure anything out I'll post it here.

@scot_723287 it lasted around… 3 months? I did a lot of printing. Mostly pla/petg, but some abs as well.

I’ve since swapped out the sprite pro for a biqu h2v2s.

Another problem I had with the sprite in general was poor dimensional accuracy. Things needed fairly loose tolerances to fit properly. I’m not sure if this bending played into it.

One thing I would say is have a chamfered/sloped reinforcement coming off of the circle for the mounting nut. Might give some more strength that way. I’d be happy to give it a shot for modifying.

@Voez_1417363 Apologies for the late reply. The kit should have come with a U-shaped bracket that acts as an adjustable stop. The bracket adds extra depth to the left side triangular portion of the carriage. This allows it to trigger the endstop microswitch.

@Simon_987357 Great to hear, thank you. I hope the installation goes smoothly. Let me know if you run into any problems.