Used a dremel to clean up a broken edge on a porcelain piece. The grinding wheel was pretty rough, what should I use to smooth it out? Also, any way to get it super smooth and polished like the rest of the item?
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I'm guessing these shattered because of shock or perhaps from being fully extended more than normal since the front wheel takes a lot of the weight when drawer is fully extended. The rail is acting as a lever where 10kg in the front of the drawer could easily be the equivalent of 100kg on that wheel when the drawer is fully open. The other thoughts are if someone where to lean on the drawer or if the cabinet was being moved and dropped.
I've seen replacement wheels, but they tend to be for specific rails/sliders, and I doubt you'd get a good result without a perfect match. For replacing the entire slider, I'd look for a replacement with a high weight limit. I've seen sliders in the US that are designed for 50kg, which I'm guessing would more than handle your load.
It's difficult to say without actually standing in front of it and observing the noise, but I'm going to guess you have some shot bearings somewhere. It's easier to point to them in an image to suggest where they may be descriptively:
To the left you have casters to keep the dryer on course. Applying some Teflon (or silicone) may cure it. To the right, the motor - and the sound you're hearing may mean that it is dying. That's not something you can really service beyond replacing it.
It could also simply be the belt that's attached to the motor. The same 'belt dressing' that you can buy in an auto parts store to cure a fan noise in your car will likely show (or eliminate) the belt as the culprit. It is probably quite old if it hasn't been replaced since being purchased. The inside of a dryer can get quite humid, so those belts can last for a really long time.
So check lube or 'dress' anything that helps the dryer spin, except the motor, first. If that fails, then look into getting a replacement motor (or new dryer, possibly). Rule out anything that has steel bearings first, and the belt.
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Best Answer
Remember, porcelain isn't a polished smooth surface, it's a glazed sprayed on surface that's then fired at about 2300 degrees F. Once you've smoothed out the edge fill in any cracks or damaged areas with an epoxy glue. Let the glue self settle so it's a smooth surface and don't over apply. As far as matching the color, try nail polish. it comes in hundreds of colors and does a great job of sealing and self leveling for a smooth surface. I repaired a chip on a toilet and this really works well. Good luck