Ruined twenty euros of smalti because I trusted a cheap blade
Cutting smalti for a face I've been building for eleven days, and the wheel on my good cutter went dull, so I switched to the spare. Cheap thing. Thought, it's one afternoon, it will hold.
It didn't hold. Instead of a clean score it started shattering the edges, and smalti does not forgive that. You get a chipped line and the tessera is dead, no fixing it, no grinding it back to anything. Twenty euros of reds and golds into the scrap jar before I admitted it was the tool and not me.
Ordered two proper wheels from a supplier in Ravenna, which will take a week, so now I have half a face and nothing to do on it. The spare jar of scrap is looking very full and very expensive.
The lesson is the one I keep failing to learn. The material is dear and the tools are cheap by comparison, and I always try to save money in the wrong place.
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The cheap spare is always the expensive one in the end. I've done the same with palette knives, convincing myself for one afternoon it will be fine, and then spending a week repairing a surface that had already dried the wrong way.
What you describe with the chipped edge is the part people who don't cut smalti never understand: the material decides, not you. A tessera that shatters is not a setback you work around, it is simply gone. Eleven days of a face and then a week of waiting is a hard place to sit, but the two wheels from Ravenna are the right answer. Ordering twice is cheaper than learning once the hard way.
Palette knives I get, that's a tool you can feel going soft before it betrays you. A dull wheel on smalti just lies to you, one clean score and then the next tessera explodes and you're staring at the jar thinking what did I do. I don't cut glass but I do this with cheap charcoal, buy the box that feels fine and then it's gravel under my hand halfway through a face and I'm redrawing a mouth for the third time. Eleven days though. That's not a week of waiting, that's a week of sitting with a half finished face looking at you every time you walk past it. I'd be talking to it. Sorry about the reds.
Gravel under the hand, exactly. Same lie, different material.
And yes, I'm talking to it. Half a face is worse than no face, because the missing part is the part I can see perfectly in my head. The eye is done, the cheek is done, and the mouth is just empty mortar waiting. Every time I go past the studio door I know exactly what isn't there.
The reds I can replace. It's the golds that hurt, I can't get those tones again from the same batch, so the new ones will sit slightly warmer next to the old. Nobody will notice but me. I will notice forever.
The palette knife comparison is good, because at least there the damage is visible while you do it. The wheel lies to you for the first four or five tesserae, clean score every time, and you convince yourself it was a fluke. Then the sixth explodes and you have already been fooling yourself for ten minutes.
The half face is still sitting there under a cloth, I am not even walking past it now. Two wheels from Ravenna, one for the good cutter and one for the drawer, so the spare is never the cheap one again.