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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?
MPlssss
Iprint 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.
Mthe side of the Y feels very bumpy when I run my fingernail over it
M
Pyep! 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
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
LI had a similar issue with my RR provided rail/carriage, Pedro confirmed that was not normal so i got a replacement 
Lwhat difference did you notice from swapping to Hiwin rails?
MHow did you get him to replace them?
Li 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
mind you, i bought mine from RatRig, you won't be able to get RR to replace them if you didn't
MYes 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
P...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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