LED glass clock with ESP8266 and LED SK6812 mini-E

It depends on what you mean by 'smoothing'. I simply sand on sandpaper. Silicone to restore the colour after sanding (it can evaporate after a long time). There can also be a thin layer of matt clear varnish. It depends on what effect you want to achieve. PLA is quite hard to work with. A lot also depends on the shape of the solid.

Instead of "stroking" a solid, you can also use different veneers for simple solids. Be careful with iron-on veneers, as the melting point of the glue is similar to that of PLA. But it is possible . Complex solids are certainly more difficult to process. Sometimes I prefer to print something from smaller pieces and after machining them together. I print on glass, so one wall is like a mirror. Worse with vertical ones.
Examples of veneer: here it is thicker on filament (0.6mm), but there are also thin furniture veneers with glue in sheets.

@efi222 I got one brand new in a 400w carton yesterday;





I don't have a caliper at home and the measured "vinyl" diameter is ~ 45mm. I am waiting for a response about the larger ones.

It looks inconspicuous in the picture. Only the scale of the angle iron gives an idea
And how do you see the construction on similar bubbles?

In the hand, it looks huge. I'm curious to see how the 1000 watts. Need to think about the cutting/cutting method. How would one go about organising and mastering the art of cutting....
@efi222 Let me know on PW and I'll send you one. You can judge the suitability yourself.

I cut the 30mm bulbs first at the thread to get rid of the vacuum. Then a mini diamond cut to size. I wonder how thick the glass is in these big incandescent bulbs.