Do anybody have experience in using retaining compounds in the mount of the 3d printing wheels open-build like? these wheels are supposed to have a screw as a shaft and two bearings with a precision shim in the middle. shims are supposed to close firmly to border of inner ring of the bearing so that, then screw is firmly tighten external part of the bearing should turn without so much effort. The problem is that it i tighten too much the screw bearing doesen’t move so well; otherwise if i tighten too little all the moviment is friction between inner ring and the shaft (that is also the screw). So I think it will wear the screw in long use, adding additional play. I was thinking to prevent it using a retaining compound on the screw, in the part that has to be in contact with the bearing. I found this product by loctite " https://www.amazon.com/Loctite-Quick-Metal-Filler-Viscosity/dp/B001GSKUZU ". It seems a bit too expansive, and I would like to know if anybody had any experience using it or can suggest something else.
I use two shims one both side of the bearing. With the one in the middle also you can tighten as much as you like and they dont bind.
You can get them much cheaper on aliexpress
Use tape. Scotch tape, or transparent tape is very thin, Electrical tape is thick, but Aluminum tape or muffler tape is best for hot areas, and areas of high wear. The locktite product will never allow the shaft to center properly, then you will glue it off center or off axis, causing unrepairable issues with your prints.
there’s seem to be a fine range between it being too loose and too tight. Once you in that range, you won’t need any loctite.