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Instructions for mounting better bearings JGaurora 5
ufodoctor3
Posts: 60๐ Super Member ๐
Hello Team
I got the better bearings from AliExpress for the x and y axis and now I would like to install these nice parts!
Before ruining my printer by wrong manipulations, I am kindly asking the Forum if you know a good tutorial for this difficult job?
I think that I have to remove many parts and disconnect some glued connectors!
Thank you for your competent advice.
Peter
I got the better bearings from AliExpress for the x and y axis and now I would like to install these nice parts!
Before ruining my printer by wrong manipulations, I am kindly asking the Forum if you know a good tutorial for this difficult job?
I think that I have to remove many parts and disconnect some glued connectors!
Thank you for your competent advice.
Peter
Comments
First I had to move Z up to be able to unscrew both motors and upper white plastic holders for rods. Unscrew couplers from both motors, disconnect motors. Manually unscrew screw rods-really messy work from lubricant, but who cares...
My printer has also X axis drag chain installed, So I had to unscrew also this one and I have 5015 blower installed from Thinggiverse CarstenD (https://www.thingiverse.com/thing:2977464) which is really improvement. Here you can see it on my printer(https://www.thingiverse.com/thing:3406342)
After that, you have accessible Z axis bearings(mine started losing balls after removing smooth rods), so it was on time to exchange them. For that you must unscrew 4 screws on each side to remove thread nut. Put something into gap which is pressing Z bearing and remove it. Place new one and repeat for second side. Reassemble thread nuts for lead screws...
Now its time for X axis. Mine was rattling like hell, when moving over printed object...
Unscrew front placte with funny 3D printer text. Unscrew 2 screws holding heater block together. Now you will see LM8LUU on top and LM8UU on bottom smooth rod. To get them, you need to unscrew 2 screws holding X motor on left side. After disassembled, you can remove X axis block by gently movements, so both smooth rods of X axis will get free. Remove both bearings and replace securing washers on longer one(immediately throw them away, so you cannot find them anymore).ย
Place new bearings on place(already pre-greased) and start assembly in opposite way.
I used LM8LUU and LM8UU from MISUMI-not shitty quality from Ali. LM8LUU is ball-less type(like Igus) and LM8UU is with balls branded as QZAK Seiko co.ltd.
Whole this process took for me about one hour. By vernier caliper I aligned left and right side to be in came height, retightened all screws and heated all. After mesh bed leveling I tested it..
It runs quietly and smoothly. Together with TMC2208 it is great...
Go on this change if you have problems with noises..Sorry I do not have any photos...]
LM10UU for Y axis are already on the way from Misumi, so I will also replace these. Previously I had AnetA8 which I reworked to AM8 version. At beginning A8 was way more better in printing quality and speed, but now it has turned on A5 side...
Michal
ordered from here>ย
https://uk.misumi-ec.com/vona2/detail/221000091803/?HissuCode=LM10UU
Michal
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