Play on X's linear rail

Hello, I have a V core 3 500 with just 400 printing hours, how normal is that the lay? Could it be the cause of these marks on the prints?
10 Replies
MoyMadrigal
MoyMadrigal•2y ago
Plssss
probable-pink
probable-pink•2y ago
print a hollow cube with only one wall to check the layers because on your cube it can also be wall/infill overlap or other issues.
MoyMadrigal
MoyMadrigal•2y ago
the side of the Y feels very bumpy when I run my fingernail over it
MoyMadrigal
MoyMadrigal•2y ago
ptegler
ptegler•2y ago
yep! I tried an assortment of spring loaded wheels riding on my carbon gantry...finally bit the bullet and swapped to Z1 light preload real HiWin rails...no more wobble. (finally) For me the umbilical was enough strain/load to 'tedder-todder' the head giving me different fore/aft (Y+ Y-) layer heights as the carriage wobbled. On a VC500, printing a small part near the front of near the back wasn't really an issue. but in the middle or a larger item...EASILY noticed oddities in the walls
quickest-silver
quickest-silver•2y ago
I had a similar issue with my RR provided rail/carriage, Pedro confirmed that was not normal so i got a replacement 🙂 what difference did you notice from swapping to Hiwin rails?
MoyMadrigal
MoyMadrigal•2y ago
How did you get him to replace them?
quickest-silver
quickest-silver•2y ago
i just sent in a email and asked if it was normal, which he confirmed it wasn't mind you, i bought mine from RatRig, you won't be able to get RR to replace them if you didn't
MoyMadrigal
MoyMadrigal•2y ago
Yes I ordered one for the x gantry but I think I have the same problem on the y rails because I hear noise when it moves and when it moves to the front it gives me a bumpy pattern and if I put my ear to the frame of the The machine sounds worse when it moves forwards than backwards and they are well lubricated, sorry I didn't realize hahaha
ptegler
ptegler•2y ago
...roughly 5,000 meters of fiber later... zero detectable wobble. My test was a 0.10mm first layer covering the entire 500 bed (well did 450x450. after scissor cutting up and measuring the thickness, I'd have to say my dial calipers were the larger error in my test results. he he...right now I'm on my 3rd large print (~ 300mm round @ base) without having doing a bed mesh between prints. Then again, i'm printing at the same bed temps (~120 first layer, 110 there after) over the last three days, with no layer issues. So my gantry bow and bed 'unsag' (as it heats) seems to be very repeatable. (at the moment anyway)
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